./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/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_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/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_672e6d23-97f8-4678-9e7e-264050f8c589/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 ebc3b9722e1ef534bcc44d25c662e14f69944bbb283d1760d9c655dd0829a5b5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:02:37,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:02:37,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:02:37,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:02:37,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:02:37,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:02:37,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:02:37,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:02:37,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:02:37,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:02:37,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:02:38,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:02:38,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:02:38,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:02:38,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:02:38,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:02:38,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:02:38,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:02:38,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:02:38,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:02:38,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:02:38,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:02:38,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:02:38,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:02:38,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:02:38,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:02:38,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:02:38,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:02:38,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:02:38,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:02:38,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:02:38,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:02:38,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:02:38,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:02:38,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:02:38,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:02:38,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:02:38,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:02:38,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:02:38,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:02:38,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:02:38,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 04:02:38,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:02:38,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:02:38,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:02:38,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:02:38,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:02:38,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:02:38,064 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:02:38,064 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:02:38,065 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:02:38,065 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:02:38,065 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:02:38,065 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:02:38,066 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:02:38,066 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:02:38,066 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:02:38,067 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:02:38,067 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:02:38,067 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:02:38,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:02:38,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:02:38,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:02:38,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:02:38,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:02:38,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:02:38,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:02:38,070 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:02:38,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:02:38,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:02:38,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:02:38,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:02:38,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:02:38,071 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:02:38,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:02:38,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:02:38,072 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:02:38,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:02:38,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:02:38,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:02:38,073 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_672e6d23-97f8-4678-9e7e-264050f8c589/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebc3b9722e1ef534bcc44d25c662e14f69944bbb283d1760d9c655dd0829a5b5 [2022-11-03 04:02:38,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:02:38,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:02:38,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:02:38,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:02:38,403 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:02:38,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2022-11-03 04:02:38,493 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data/986b2ff98/4adf77f5b2fe43aa8e63849060e4eb34/FLAG8076e1802 [2022-11-03 04:02:39,234 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:02:39,235 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2022-11-03 04:02:39,252 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data/986b2ff98/4adf77f5b2fe43aa8e63849060e4eb34/FLAG8076e1802 [2022-11-03 04:02:39,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data/986b2ff98/4adf77f5b2fe43aa8e63849060e4eb34 [2022-11-03 04:02:39,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:02:39,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:02:39,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:02:39,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:02:39,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:02:39,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:02:39" (1/1) ... [2022-11-03 04:02:39,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3958b580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:39, skipping insertion in model container [2022-11-03 04:02:39,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:02:39" (1/1) ... [2022-11-03 04:02:39,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:02:39,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:02:39,864 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_672e6d23-97f8-4678-9e7e-264050f8c589/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c[1116,1129] [2022-11-03 04:02:40,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:02:40,232 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:02:40,244 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_672e6d23-97f8-4678-9e7e-264050f8c589/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c[1116,1129] [2022-11-03 04:02:40,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:02:40,392 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:02:40,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40 WrapperNode [2022-11-03 04:02:40,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:02:40,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:02:40,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:02:40,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:02:40,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,615 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1142 [2022-11-03 04:02:40,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:02:40,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:02:40,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:02:40,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:02:40,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,769 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:02:40,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:02:40,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:02:40,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:02:40,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (1/1) ... [2022-11-03 04:02:40,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:02:40,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:02:40,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:02:40,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:02:40,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:02:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:02:40,893 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:02:40,893 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:02:41,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:02:41,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:02:43,179 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:02:45,434 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:02:45,434 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:02:45,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:02:45 BoogieIcfgContainer [2022-11-03 04:02:45,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:02:45,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:02:45,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:02:45,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:02:45,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:02:39" (1/3) ... [2022-11-03 04:02:45,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cb9d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:02:45, skipping insertion in model container [2022-11-03 04:02:45,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:02:40" (2/3) ... [2022-11-03 04:02:45,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cb9d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:02:45, skipping insertion in model container [2022-11-03 04:02:45,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:02:45" (3/3) ... [2022-11-03 04:02:45,449 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2022-11-03 04:02:45,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:02:45,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:02:45,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:02:45,574 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;@5cbf9221, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:02:45,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:02:45,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:02:45,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 04:02:45,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:45,592 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:02:45,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:45,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:45,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1478196790, now seen corresponding path program 1 times [2022-11-03 04:02:45,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:45,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416965355] [2022-11-03 04:02:45,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:45,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:02:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:02:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 04:02:53,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:02:53,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416965355] [2022-11-03 04:02:53,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416965355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:02:53,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:02:53,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:02:53,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349477133] [2022-11-03 04:02:53,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:02:53,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:02:53,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:02:53,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:02:53,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:02:53,958 INFO L87 Difference]: Start difference. First operand has 15 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:02:56,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 04:02:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:02:57,493 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2022-11-03 04:02:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:02:57,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2022-11-03 04:02:57,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:02:57,501 INFO L225 Difference]: With dead ends: 37 [2022-11-03 04:02:57,501 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 04:02:57,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:02:57,507 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:02:57,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 30 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-03 04:02:57,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 04:02:57,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-11-03 04:02:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:02:57,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-03 04:02:57,543 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 16 [2022-11-03 04:02:57,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:02:57,545 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-03 04:02:57,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:02:57,545 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-03 04:02:57,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 04:02:57,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:02:57,547 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-03 04:02:57,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:02:57,548 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:02:57,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:02:57,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1208692764, now seen corresponding path program 1 times [2022-11-03 04:02:57,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:02:57,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708590371] [2022-11-03 04:02:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:02:57,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:04:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:04:00,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 04:04:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:04:48,088 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 04:04:48,089 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 04:04:48,090 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:04:48,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:04:48,097 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 04:04:48,101 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:04:48,290 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 04:04:48,291 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-03 04:04:48,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:04:48 BoogieIcfgContainer [2022-11-03 04:04:48,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:04:48,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:04:48,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:04:48,354 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:04:48,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:02:45" (3/4) ... [2022-11-03 04:04:48,358 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 04:04:48,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:04:48,360 INFO L158 Benchmark]: Toolchain (without parser) took 128837.49ms. Allocated memory was 100.7MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 67.2MB in the beginning and 777.1MB in the end (delta: -709.9MB). Peak memory consumption was 923.4MB. Max. memory is 16.1GB. [2022-11-03 04:04:48,361 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 100.7MB. Free memory was 53.8MB in the beginning and 53.8MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:04:48,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 869.64ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 67.0MB in the beginning and 91.7MB in the end (delta: -24.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 04:04:48,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 222.19ms. Allocated memory is still 138.4MB. Free memory was 91.7MB in the beginning and 105.6MB in the end (delta: -14.0MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-11-03 04:04:48,369 INFO L158 Benchmark]: Boogie Preprocessor took 186.11ms. Allocated memory is still 138.4MB. Free memory was 105.6MB in the beginning and 101.0MB in the end (delta: 4.7MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2022-11-03 04:04:48,370 INFO L158 Benchmark]: RCFGBuilder took 4634.42ms. Allocated memory was 138.4MB in the beginning and 482.3MB in the end (delta: 343.9MB). Free memory was 101.0MB in the beginning and 421.7MB in the end (delta: -320.7MB). Peak memory consumption was 182.1MB. Max. memory is 16.1GB. [2022-11-03 04:04:48,370 INFO L158 Benchmark]: TraceAbstraction took 122910.90ms. Allocated memory was 482.3MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 420.7MB in the beginning and 777.1MB in the end (delta: -356.4MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-03 04:04:48,371 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 1.7GB. Free memory is still 777.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:04:48,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13ms. Allocated memory is still 100.7MB. Free memory was 53.8MB in the beginning and 53.8MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 869.64ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 67.0MB in the beginning and 91.7MB in the end (delta: -24.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 222.19ms. Allocated memory is still 138.4MB. Free memory was 91.7MB in the beginning and 105.6MB in the end (delta: -14.0MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 186.11ms. Allocated memory is still 138.4MB. Free memory was 105.6MB in the beginning and 101.0MB in the end (delta: 4.7MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4634.42ms. Allocated memory was 138.4MB in the beginning and 482.3MB in the end (delta: 343.9MB). Free memory was 101.0MB in the beginning and 421.7MB in the end (delta: -320.7MB). Peak memory consumption was 182.1MB. Max. memory is 16.1GB. * TraceAbstraction took 122910.90ms. Allocated memory was 482.3MB in the beginning and 1.7GB in the end (delta: 1.3GB). Free memory was 420.7MB in the beginning and 777.1MB in the end (delta: -356.4MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 1.7GB. Free memory is still 777.1MB. 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 388, overapproximation of bitwiseComplement at line 173, overapproximation of bitwiseAnd at line 176. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 6); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (6 - 1); [L34] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 5); [L35] const SORT_13 msb_SORT_13 = (SORT_13)1 << (5 - 1); [L37] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 4); [L38] const SORT_19 msb_SORT_19 = (SORT_19)1 << (4 - 1); [L40] const SORT_60 mask_SORT_60 = (SORT_60)-1 >> (sizeof(SORT_60) * 8 - 3); [L41] const SORT_60 msb_SORT_60 = (SORT_60)1 << (3 - 1); [L43] const SORT_81 mask_SORT_81 = (SORT_81)-1 >> (sizeof(SORT_81) * 8 - 2); [L44] const SORT_81 msb_SORT_81 = (SORT_81)1 << (2 - 1); [L46] const SORT_13 var_15 = 16; [L47] const SORT_19 var_20 = 15; [L48] const SORT_19 var_25 = 14; [L49] const SORT_19 var_30 = 13; [L50] const SORT_19 var_35 = 12; [L51] const SORT_19 var_40 = 11; [L52] const SORT_19 var_45 = 10; [L53] const SORT_19 var_50 = 9; [L54] const SORT_19 var_55 = 8; [L55] const SORT_60 var_61 = 7; [L56] const SORT_60 var_66 = 6; [L57] const SORT_60 var_71 = 5; [L58] const SORT_60 var_76 = 4; [L59] const SORT_81 var_82 = 3; [L60] const SORT_81 var_87 = 2; [L61] const SORT_1 var_92 = 1; [L62] const SORT_13 var_105 = 17; [L63] const SORT_11 var_122 = 0; [L64] const SORT_1 var_152 = 0; [L65] const SORT_3 var_373 = 0; [L67] SORT_1 input_2; [L68] SORT_3 input_4; [L69] SORT_1 input_5; [L70] SORT_1 input_6; [L71] SORT_1 input_7; [L72] SORT_1 input_8; [L73] SORT_3 input_9; [L74] SORT_1 input_150; [L76] SORT_3 state_10 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L77] SORT_11 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L78] SORT_3 state_18 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L79] SORT_3 state_24 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L80] SORT_3 state_29 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L81] SORT_3 state_34 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L82] SORT_3 state_39 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L83] SORT_3 state_44 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L84] SORT_3 state_49 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L85] SORT_3 state_54 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L86] SORT_3 state_59 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L87] SORT_3 state_65 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L88] SORT_3 state_70 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L89] SORT_3 state_75 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L90] SORT_3 state_80 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L91] SORT_3 state_86 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L92] SORT_3 state_91 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L93] SORT_3 state_96 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L94] SORT_11 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L95] SORT_1 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_1 state_110 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] SORT_11 state_113 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L98] SORT_3 state_128 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L99] SORT_1 state_132 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] SORT_11 state_185 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L102] SORT_1 init_133_arg_1 = var_92; [L103] state_132 = init_133_arg_1 VAL [init_133_arg_1=1, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=1, state_113=23, state_12=0, state_128=0, state_132=1, state_18=0, state_185=254, state_24=16, state_29=16, state_34=0, state_39=0, state_44=16, state_49=16, state_54=29, state_59=0, state_65=0, state_70=0, state_75=65535, state_80=1, state_86=1, state_91=0, state_96=32, var_105=17, var_122=0, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L106] input_2 = __VERIFIER_nondet_uchar() [L107] input_4 = __VERIFIER_nondet_ushort() [L108] input_5 = __VERIFIER_nondet_uchar() [L109] input_6 = __VERIFIER_nondet_uchar() [L110] input_7 = __VERIFIER_nondet_uchar() [L111] input_7 = input_7 & mask_SORT_1 [L112] input_8 = __VERIFIER_nondet_uchar() [L113] input_9 = __VERIFIER_nondet_ushort() [L114] input_150 = __VERIFIER_nondet_uchar() [L116] SORT_1 var_134_arg_0 = input_7; [L117] SORT_1 var_134_arg_1 = state_132; [L118] SORT_1 var_134 = var_134_arg_0 == var_134_arg_1; [L119] SORT_1 var_135_arg_0 = var_92; [L120] SORT_1 var_135 = ~var_135_arg_0; [L121] SORT_1 var_136_arg_0 = var_134; [L122] SORT_1 var_136_arg_1 = var_135; [L123] SORT_1 var_136 = var_136_arg_0 | var_136_arg_1; [L124] var_136 = var_136 & mask_SORT_1 [L125] SORT_1 constr_137_arg_0 = var_136; VAL [constr_137_arg_0=1, init_133_arg_1=1, input_150=20, input_2=3, input_4=1, input_5=38, input_6=47, input_7=0, input_8=27, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=1, state_113=23, state_12=0, state_128=0, state_132=1, state_18=0, state_185=254, state_24=16, state_29=16, state_34=0, state_39=0, state_44=16, state_49=16, state_54=29, state_59=0, state_65=0, state_70=0, state_75=65535, state_80=1, state_86=1, state_91=0, state_96=32, var_105=17, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L126] CALL assume_abort_if_not(constr_137_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L126] RET assume_abort_if_not(constr_137_arg_0) VAL [constr_137_arg_0=1, init_133_arg_1=1, input_150=20, input_2=3, input_4=1, input_5=38, input_6=47, input_7=0, input_8=27, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=1, state_113=23, state_12=0, state_128=0, state_132=1, state_18=0, state_185=254, state_24=16, state_29=16, state_34=0, state_39=0, state_44=16, state_49=16, state_54=29, state_59=0, state_65=0, state_70=0, state_75=65535, state_80=1, state_86=1, state_91=0, state_96=32, var_105=17, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L127] SORT_13 var_106_arg_0 = var_105; [L128] var_106_arg_0 = var_106_arg_0 & mask_SORT_13 [L129] SORT_11 var_106 = var_106_arg_0; [L130] SORT_11 var_107_arg_0 = state_101; [L131] SORT_11 var_107_arg_1 = var_106; [L132] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L133] SORT_1 var_138_arg_0 = var_107; [L134] SORT_1 var_138 = ~var_138_arg_0; [L135] SORT_1 var_139_arg_0 = input_6; [L136] SORT_1 var_139 = ~var_139_arg_0; [L137] SORT_1 var_140_arg_0 = var_138; [L138] SORT_1 var_140_arg_1 = var_139; [L139] SORT_1 var_140 = var_140_arg_0 | var_140_arg_1; [L140] SORT_1 var_141_arg_0 = var_92; [L141] SORT_1 var_141 = ~var_141_arg_0; [L142] SORT_1 var_142_arg_0 = var_140; [L143] SORT_1 var_142_arg_1 = var_141; [L144] SORT_1 var_142 = var_142_arg_0 | var_142_arg_1; [L145] var_142 = var_142 & mask_SORT_1 [L146] SORT_1 constr_143_arg_0 = var_142; VAL [constr_137_arg_0=1, constr_143_arg_0=1, init_133_arg_1=1, input_150=20, input_2=3, input_4=1, input_5=38, input_6=47, input_7=0, input_8=27, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=1, state_113=23, state_12=0, state_128=0, state_132=1, state_18=0, state_185=254, state_24=16, state_29=16, state_34=0, state_39=0, state_44=16, state_49=16, state_54=29, state_59=0, state_65=0, state_70=0, state_75=65535, state_80=1, state_86=1, state_91=0, state_96=32, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=34, var_138_arg_0=0, var_139=34, var_139_arg_0=47, var_140=34, var_140_arg_0=34, var_140_arg_1=34, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=34, var_142_arg_1=255, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L147] CALL assume_abort_if_not(constr_143_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L147] RET assume_abort_if_not(constr_143_arg_0) VAL [constr_137_arg_0=1, constr_143_arg_0=1, init_133_arg_1=1, input_150=20, input_2=3, input_4=1, input_5=38, input_6=47, input_7=0, input_8=27, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=1, state_113=23, state_12=0, state_128=0, state_132=1, state_18=0, state_185=254, state_24=16, state_29=16, state_34=0, state_39=0, state_44=16, state_49=16, state_54=29, state_59=0, state_65=0, state_70=0, state_75=65535, state_80=1, state_86=1, state_91=0, state_96=32, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=34, var_138_arg_0=0, var_139=34, var_139_arg_0=47, var_140=34, var_140_arg_0=34, var_140_arg_1=34, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=34, var_142_arg_1=255, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L148] SORT_11 var_102_arg_0 = state_101; [L149] SORT_1 var_102 = var_102_arg_0 != 0; [L150] SORT_1 var_103_arg_0 = var_102; [L151] SORT_1 var_103 = ~var_103_arg_0; [L152] SORT_1 var_144_arg_0 = var_103; [L153] SORT_1 var_144 = ~var_144_arg_0; [L154] SORT_1 var_145_arg_0 = input_5; [L155] SORT_1 var_145 = ~var_145_arg_0; [L156] SORT_1 var_146_arg_0 = var_144; [L157] SORT_1 var_146_arg_1 = var_145; [L158] SORT_1 var_146 = var_146_arg_0 | var_146_arg_1; [L159] SORT_1 var_147_arg_0 = var_92; [L160] SORT_1 var_147 = ~var_147_arg_0; [L161] SORT_1 var_148_arg_0 = var_146; [L162] SORT_1 var_148_arg_1 = var_147; [L163] SORT_1 var_148 = var_148_arg_0 | var_148_arg_1; [L164] var_148 = var_148 & mask_SORT_1 [L165] SORT_1 constr_149_arg_0 = var_148; VAL [constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=20, input_2=3, input_4=1, input_5=38, input_6=47, input_7=0, input_8=27, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=1, state_113=23, state_12=0, state_128=0, state_132=1, state_18=0, state_185=254, state_24=16, state_29=16, state_34=0, state_39=0, state_44=16, state_49=16, state_54=29, state_59=0, state_65=0, state_70=0, state_75=65535, state_80=1, state_86=1, state_91=0, state_96=32, var_102=0, var_102_arg_0=0, var_103=6, var_103_arg_0=0, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=34, var_138_arg_0=0, var_139=34, var_139_arg_0=47, var_140=34, var_140_arg_0=34, var_140_arg_1=34, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=34, var_142_arg_1=255, var_144=0, var_144_arg_0=6, var_145=2, var_145_arg_0=38, var_146=1, var_146_arg_0=0, var_146_arg_1=2, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=1, var_148_arg_1=1, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L166] CALL assume_abort_if_not(constr_149_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L166] RET assume_abort_if_not(constr_149_arg_0) VAL [constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=20, input_2=3, input_4=1, input_5=38, input_6=47, input_7=0, input_8=27, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, state_10=0, state_101=0, state_109=1, state_110=1, state_113=23, state_12=0, state_128=0, state_132=1, state_18=0, state_185=254, state_24=16, state_29=16, state_34=0, state_39=0, state_44=16, state_49=16, state_54=29, state_59=0, state_65=0, state_70=0, state_75=65535, state_80=1, state_86=1, state_91=0, state_96=32, var_102=0, var_102_arg_0=0, var_103=6, var_103_arg_0=0, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_122=0, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=34, var_138_arg_0=0, var_139=34, var_139_arg_0=47, var_140=34, var_140_arg_0=34, var_140_arg_1=34, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=34, var_142_arg_1=255, var_144=0, var_144_arg_0=6, var_145=2, var_145_arg_0=38, var_146=1, var_146_arg_0=0, var_146_arg_1=2, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=1, var_148_arg_1=1, var_15=16, var_152=0, var_20=15, var_25=14, var_30=13, var_35=12, var_373=0, var_40=11, var_45=10, var_50=9, var_55=8, var_61=7, var_66=6, var_71=5, var_76=4, var_82=3, var_87=2, var_92=1] [L168] SORT_1 var_153_arg_0 = state_132; [L169] SORT_1 var_153_arg_1 = var_152; [L170] SORT_1 var_153_arg_2 = var_92; [L171] EXPR var_153_arg_0 ? var_153_arg_1 : var_153_arg_2 [L171] SORT_1 var_153 = var_153_arg_0 ? var_153_arg_1 : var_153_arg_2; [L172] SORT_1 var_111_arg_0 = state_110; [L173] SORT_1 var_111 = ~var_111_arg_0; [L174] SORT_1 var_112_arg_0 = state_109; [L175] SORT_1 var_112_arg_1 = var_111; [L176] SORT_1 var_112 = var_112_arg_0 & var_112_arg_1; [L177] SORT_11 var_114_arg_0 = state_113; [L178] SORT_1 var_114 = var_114_arg_0 != 0; [L179] SORT_1 var_115_arg_0 = var_112; [L180] SORT_1 var_115_arg_1 = var_114; [L181] SORT_1 var_115 = var_115_arg_0 & var_115_arg_1; [L182] SORT_1 var_116_arg_0 = state_109; [L183] SORT_1 var_116 = ~var_116_arg_0; [L184] SORT_1 var_117_arg_0 = input_6; [L185] SORT_1 var_117_arg_1 = var_116; [L186] SORT_1 var_117 = var_117_arg_0 & var_117_arg_1; [L187] SORT_1 var_118_arg_0 = var_117; [L188] var_118_arg_0 = var_118_arg_0 & mask_SORT_1 [L189] SORT_11 var_118 = var_118_arg_0; [L190] SORT_11 var_119_arg_0 = state_113; [L191] SORT_11 var_119_arg_1 = var_118; [L192] SORT_11 var_119 = var_119_arg_0 + var_119_arg_1; [L193] SORT_1 var_120_arg_0 = input_5; [L194] var_120_arg_0 = var_120_arg_0 & mask_SORT_1 [L195] SORT_11 var_120 = var_120_arg_0; [L196] SORT_11 var_121_arg_0 = var_119; [L197] SORT_11 var_121_arg_1 = var_120; [L198] SORT_11 var_121 = var_121_arg_0 - var_121_arg_1; [L199] SORT_1 var_123_arg_0 = input_7; [L200] SORT_11 var_123_arg_1 = var_122; [L201] SORT_11 var_123_arg_2 = var_121; [L202] EXPR var_123_arg_0 ? var_123_arg_1 : var_123_arg_2 [L202] SORT_11 var_123 = var_123_arg_0 ? var_123_arg_1 : var_123_arg_2; [L203] var_123 = var_123 & mask_SORT_11 [L204] SORT_11 var_124_arg_0 = var_123; [L205] SORT_1 var_124 = var_124_arg_0 != 0; [L206] SORT_1 var_125_arg_0 = var_124; [L207] SORT_1 var_125 = ~var_125_arg_0; [L208] SORT_1 var_126_arg_0 = var_115; [L209] SORT_1 var_126_arg_1 = var_125; [L210] SORT_1 var_126 = var_126_arg_0 & var_126_arg_1; [L211] SORT_1 var_127_arg_0 = var_126; [L212] SORT_1 var_127 = ~var_127_arg_0; [L213] SORT_11 var_14_arg_0 = state_12; [L214] SORT_13 var_14 = var_14_arg_0 >> 0; [L215] var_14 = var_14 & mask_SORT_13 [L216] SORT_13 var_97_arg_0 = var_14; [L217] SORT_1 var_97 = var_97_arg_0 != 0; [L218] SORT_1 var_98_arg_0 = var_97; [L219] SORT_1 var_98 = ~var_98_arg_0; [L220] var_98 = var_98 & mask_SORT_1 [L221] SORT_1 var_93_arg_0 = var_92; [L222] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L223] SORT_13 var_93 = var_93_arg_0; [L224] SORT_13 var_94_arg_0 = var_14; [L225] SORT_13 var_94_arg_1 = var_93; [L226] SORT_1 var_94 = var_94_arg_0 == var_94_arg_1; [L227] SORT_81 var_88_arg_0 = var_87; [L228] var_88_arg_0 = var_88_arg_0 & mask_SORT_81 [L229] SORT_13 var_88 = var_88_arg_0; [L230] SORT_13 var_89_arg_0 = var_14; [L231] SORT_13 var_89_arg_1 = var_88; [L232] SORT_1 var_89 = var_89_arg_0 == var_89_arg_1; [L233] SORT_81 var_83_arg_0 = var_82; [L234] var_83_arg_0 = var_83_arg_0 & mask_SORT_81 [L235] SORT_13 var_83 = var_83_arg_0; [L236] SORT_13 var_84_arg_0 = var_14; [L237] SORT_13 var_84_arg_1 = var_83; [L238] SORT_1 var_84 = var_84_arg_0 == var_84_arg_1; [L239] SORT_60 var_77_arg_0 = var_76; [L240] var_77_arg_0 = var_77_arg_0 & mask_SORT_60 [L241] SORT_13 var_77 = var_77_arg_0; [L242] SORT_13 var_78_arg_0 = var_14; [L243] SORT_13 var_78_arg_1 = var_77; [L244] SORT_1 var_78 = var_78_arg_0 == var_78_arg_1; [L245] SORT_60 var_72_arg_0 = var_71; [L246] var_72_arg_0 = var_72_arg_0 & mask_SORT_60 [L247] SORT_13 var_72 = var_72_arg_0; [L248] SORT_13 var_73_arg_0 = var_14; [L249] SORT_13 var_73_arg_1 = var_72; [L250] SORT_1 var_73 = var_73_arg_0 == var_73_arg_1; [L251] SORT_60 var_67_arg_0 = var_66; [L252] var_67_arg_0 = var_67_arg_0 & mask_SORT_60 [L253] SORT_13 var_67 = var_67_arg_0; [L254] SORT_13 var_68_arg_0 = var_14; [L255] SORT_13 var_68_arg_1 = var_67; [L256] SORT_1 var_68 = var_68_arg_0 == var_68_arg_1; [L257] SORT_60 var_62_arg_0 = var_61; [L258] var_62_arg_0 = var_62_arg_0 & mask_SORT_60 [L259] SORT_13 var_62 = var_62_arg_0; [L260] SORT_13 var_63_arg_0 = var_14; [L261] SORT_13 var_63_arg_1 = var_62; [L262] SORT_1 var_63 = var_63_arg_0 == var_63_arg_1; [L263] SORT_19 var_56_arg_0 = var_55; [L264] var_56_arg_0 = var_56_arg_0 & mask_SORT_19 [L265] SORT_13 var_56 = var_56_arg_0; [L266] SORT_13 var_57_arg_0 = var_14; [L267] SORT_13 var_57_arg_1 = var_56; [L268] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L269] SORT_19 var_51_arg_0 = var_50; [L270] var_51_arg_0 = var_51_arg_0 & mask_SORT_19 [L271] SORT_13 var_51 = var_51_arg_0; [L272] SORT_13 var_52_arg_0 = var_14; [L273] SORT_13 var_52_arg_1 = var_51; [L274] SORT_1 var_52 = var_52_arg_0 == var_52_arg_1; [L275] SORT_19 var_46_arg_0 = var_45; [L276] var_46_arg_0 = var_46_arg_0 & mask_SORT_19 [L277] SORT_13 var_46 = var_46_arg_0; [L278] SORT_13 var_47_arg_0 = var_14; [L279] SORT_13 var_47_arg_1 = var_46; [L280] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L281] SORT_19 var_41_arg_0 = var_40; [L282] var_41_arg_0 = var_41_arg_0 & mask_SORT_19 [L283] SORT_13 var_41 = var_41_arg_0; [L284] SORT_13 var_42_arg_0 = var_14; [L285] SORT_13 var_42_arg_1 = var_41; [L286] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L287] SORT_19 var_36_arg_0 = var_35; [L288] var_36_arg_0 = var_36_arg_0 & mask_SORT_19 [L289] SORT_13 var_36 = var_36_arg_0; [L290] SORT_13 var_37_arg_0 = var_14; [L291] SORT_13 var_37_arg_1 = var_36; [L292] SORT_1 var_37 = var_37_arg_0 == var_37_arg_1; [L293] SORT_19 var_31_arg_0 = var_30; [L294] var_31_arg_0 = var_31_arg_0 & mask_SORT_19 [L295] SORT_13 var_31 = var_31_arg_0; [L296] SORT_13 var_32_arg_0 = var_14; [L297] SORT_13 var_32_arg_1 = var_31; [L298] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L299] SORT_19 var_26_arg_0 = var_25; [L300] var_26_arg_0 = var_26_arg_0 & mask_SORT_19 [L301] SORT_13 var_26 = var_26_arg_0; [L302] SORT_13 var_27_arg_0 = var_14; [L303] SORT_13 var_27_arg_1 = var_26; [L304] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L305] SORT_19 var_21_arg_0 = var_20; [L306] var_21_arg_0 = var_21_arg_0 & mask_SORT_19 [L307] SORT_13 var_21 = var_21_arg_0; [L308] SORT_13 var_22_arg_0 = var_14; [L309] SORT_13 var_22_arg_1 = var_21; [L310] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L311] SORT_13 var_16_arg_0 = var_14; [L312] SORT_13 var_16_arg_1 = var_15; [L313] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L314] SORT_1 var_17_arg_0 = var_16; [L315] SORT_3 var_17_arg_1 = state_10; [L316] SORT_3 var_17_arg_2 = input_9; [L317] EXPR var_17_arg_0 ? var_17_arg_1 : var_17_arg_2 [L317] SORT_3 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L318] SORT_1 var_23_arg_0 = var_22; [L319] SORT_3 var_23_arg_1 = state_18; [L320] SORT_3 var_23_arg_2 = var_17; [L321] EXPR var_23_arg_0 ? var_23_arg_1 : var_23_arg_2 [L321] SORT_3 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L322] SORT_1 var_28_arg_0 = var_27; [L323] SORT_3 var_28_arg_1 = state_24; [L324] SORT_3 var_28_arg_2 = var_23; [L325] EXPR var_28_arg_0 ? var_28_arg_1 : var_28_arg_2 [L325] SORT_3 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L326] SORT_1 var_33_arg_0 = var_32; [L327] SORT_3 var_33_arg_1 = state_29; [L328] SORT_3 var_33_arg_2 = var_28; [L329] EXPR var_33_arg_0 ? var_33_arg_1 : var_33_arg_2 [L329] SORT_3 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L330] SORT_1 var_38_arg_0 = var_37; [L331] SORT_3 var_38_arg_1 = state_34; [L332] SORT_3 var_38_arg_2 = var_33; [L333] EXPR var_38_arg_0 ? var_38_arg_1 : var_38_arg_2 [L333] SORT_3 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L334] SORT_1 var_43_arg_0 = var_42; [L335] SORT_3 var_43_arg_1 = state_39; [L336] SORT_3 var_43_arg_2 = var_38; [L337] EXPR var_43_arg_0 ? var_43_arg_1 : var_43_arg_2 [L337] SORT_3 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L338] SORT_1 var_48_arg_0 = var_47; [L339] SORT_3 var_48_arg_1 = state_44; [L340] SORT_3 var_48_arg_2 = var_43; [L341] EXPR var_48_arg_0 ? var_48_arg_1 : var_48_arg_2 [L341] SORT_3 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L342] SORT_1 var_53_arg_0 = var_52; [L343] SORT_3 var_53_arg_1 = state_49; [L344] SORT_3 var_53_arg_2 = var_48; [L345] EXPR var_53_arg_0 ? var_53_arg_1 : var_53_arg_2 [L345] SORT_3 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L346] SORT_1 var_58_arg_0 = var_57; [L347] SORT_3 var_58_arg_1 = state_54; [L348] SORT_3 var_58_arg_2 = var_53; [L349] EXPR var_58_arg_0 ? var_58_arg_1 : var_58_arg_2 [L349] SORT_3 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L350] SORT_1 var_64_arg_0 = var_63; [L351] SORT_3 var_64_arg_1 = state_59; [L352] SORT_3 var_64_arg_2 = var_58; [L353] EXPR var_64_arg_0 ? var_64_arg_1 : var_64_arg_2 [L353] SORT_3 var_64 = var_64_arg_0 ? var_64_arg_1 : var_64_arg_2; [L354] SORT_1 var_69_arg_0 = var_68; [L355] SORT_3 var_69_arg_1 = state_65; [L356] SORT_3 var_69_arg_2 = var_64; [L357] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 [L357] SORT_3 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L358] SORT_1 var_74_arg_0 = var_73; [L359] SORT_3 var_74_arg_1 = state_70; [L360] SORT_3 var_74_arg_2 = var_69; [L361] EXPR var_74_arg_0 ? var_74_arg_1 : var_74_arg_2 [L361] SORT_3 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L362] SORT_1 var_79_arg_0 = var_78; [L363] SORT_3 var_79_arg_1 = state_75; [L364] SORT_3 var_79_arg_2 = var_74; [L365] EXPR var_79_arg_0 ? var_79_arg_1 : var_79_arg_2 [L365] SORT_3 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L366] SORT_1 var_85_arg_0 = var_84; [L367] SORT_3 var_85_arg_1 = state_80; [L368] SORT_3 var_85_arg_2 = var_79; [L369] EXPR var_85_arg_0 ? var_85_arg_1 : var_85_arg_2 [L369] SORT_3 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L370] SORT_1 var_90_arg_0 = var_89; [L371] SORT_3 var_90_arg_1 = state_86; [L372] SORT_3 var_90_arg_2 = var_85; [L373] EXPR var_90_arg_0 ? var_90_arg_1 : var_90_arg_2 [L373] SORT_3 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L374] SORT_1 var_95_arg_0 = var_94; [L375] SORT_3 var_95_arg_1 = state_91; [L376] SORT_3 var_95_arg_2 = var_90; [L377] EXPR var_95_arg_0 ? var_95_arg_1 : var_95_arg_2 [L377] SORT_3 var_95 = var_95_arg_0 ? var_95_arg_1 : var_95_arg_2; [L378] SORT_1 var_99_arg_0 = var_98; [L379] SORT_3 var_99_arg_1 = state_96; [L380] SORT_3 var_99_arg_2 = var_95; [L381] EXPR var_99_arg_0 ? var_99_arg_1 : var_99_arg_2 [L381] SORT_3 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L382] var_99 = var_99 & mask_SORT_3 [L383] SORT_3 var_129_arg_0 = state_128; [L384] SORT_3 var_129_arg_1 = var_99; [L385] SORT_1 var_129 = var_129_arg_0 == var_129_arg_1; [L386] SORT_1 var_130_arg_0 = var_127; [L387] SORT_1 var_130_arg_1 = var_129; [L388] SORT_1 var_130 = var_130_arg_0 | var_130_arg_1; [L389] SORT_1 var_151_arg_0 = state_132; [L390] SORT_1 var_151_arg_1 = input_150; [L391] SORT_1 var_151_arg_2 = var_130; [L392] EXPR var_151_arg_0 ? var_151_arg_1 : var_151_arg_2 [L392] SORT_1 var_151 = var_151_arg_0 ? var_151_arg_1 : var_151_arg_2; [L393] SORT_1 var_154_arg_0 = var_151; [L394] SORT_1 var_154 = ~var_154_arg_0; [L395] SORT_1 var_155_arg_0 = var_153; [L396] SORT_1 var_155_arg_1 = var_154; [L397] SORT_1 var_155 = var_155_arg_0 & var_155_arg_1; [L398] var_155 = var_155 & mask_SORT_1 [L399] SORT_1 bad_156_arg_0 = var_155; [L400] CALL __VERIFIER_assert(!(bad_156_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L400] RET __VERIFIER_assert(!(bad_156_arg_0)) [L402] SORT_11 var_186_arg_0 = state_185; [L403] SORT_13 var_186 = var_186_arg_0 >> 0; [L404] var_186 = var_186 & mask_SORT_13 [L405] SORT_13 var_236_arg_0 = var_186; [L406] SORT_13 var_236_arg_1 = var_15; [L407] SORT_1 var_236 = var_236_arg_0 == var_236_arg_1; [L408] SORT_1 var_237_arg_0 = input_6; [L409] SORT_1 var_237_arg_1 = var_236; [L410] SORT_1 var_237 = var_237_arg_0 & var_237_arg_1; [L411] var_237 = var_237 & mask_SORT_1 [L412] SORT_1 var_372_arg_0 = var_237; [L413] SORT_3 var_372_arg_1 = input_4; [L414] SORT_3 var_372_arg_2 = state_10; [L415] EXPR var_372_arg_0 ? var_372_arg_1 : var_372_arg_2 [L415] SORT_3 var_372 = var_372_arg_0 ? var_372_arg_1 : var_372_arg_2; [L416] SORT_1 var_374_arg_0 = input_7; [L417] SORT_3 var_374_arg_1 = var_373; [L418] SORT_3 var_374_arg_2 = var_372; [L419] EXPR var_374_arg_0 ? var_374_arg_1 : var_374_arg_2 [L419] SORT_3 var_374 = var_374_arg_0 ? var_374_arg_1 : var_374_arg_2; [L420] SORT_3 next_375_arg_1 = var_374; [L421] SORT_1 var_160_arg_0 = input_6; [L422] SORT_1 var_160_arg_1 = input_5; [L423] SORT_1 var_160 = var_160_arg_0 | var_160_arg_1; [L424] SORT_1 var_161_arg_0 = var_160; [L425] SORT_1 var_161_arg_1 = input_7; [L426] SORT_1 var_161 = var_161_arg_0 | var_161_arg_1; [L427] var_161 = var_161 & mask_SORT_1 [L428] SORT_1 var_303_arg_0 = input_5; [L429] var_303_arg_0 = var_303_arg_0 & mask_SORT_1 [L430] SORT_11 var_303 = var_303_arg_0; [L431] SORT_11 var_304_arg_0 = state_12; [L432] SORT_11 var_304_arg_1 = var_303; [L433] SORT_11 var_304 = var_304_arg_0 + var_304_arg_1; [L434] SORT_1 var_376_arg_0 = var_161; [L435] SORT_11 var_376_arg_1 = var_304; [L436] SORT_11 var_376_arg_2 = state_12; [L437] EXPR var_376_arg_0 ? var_376_arg_1 : var_376_arg_2 [L437] SORT_11 var_376 = var_376_arg_0 ? var_376_arg_1 : var_376_arg_2; [L438] SORT_1 var_377_arg_0 = input_7; [L439] SORT_11 var_377_arg_1 = var_122; [L440] SORT_11 var_377_arg_2 = var_376; [L441] EXPR var_377_arg_0 ? var_377_arg_1 : var_377_arg_2 [L441] SORT_11 var_377 = var_377_arg_0 ? var_377_arg_1 : var_377_arg_2; [L442] SORT_11 next_378_arg_1 = var_377; [L443] SORT_19 var_229_arg_0 = var_20; [L444] var_229_arg_0 = var_229_arg_0 & mask_SORT_19 [L445] SORT_13 var_229 = var_229_arg_0; [L446] SORT_13 var_230_arg_0 = var_186; [L447] SORT_13 var_230_arg_1 = var_229; [L448] SORT_1 var_230 = var_230_arg_0 == var_230_arg_1; [L449] SORT_1 var_231_arg_0 = input_6; [L450] SORT_1 var_231_arg_1 = var_230; [L451] SORT_1 var_231 = var_231_arg_0 & var_231_arg_1; [L452] var_231 = var_231 & mask_SORT_1 [L453] SORT_1 var_379_arg_0 = var_231; [L454] SORT_3 var_379_arg_1 = input_4; [L455] SORT_3 var_379_arg_2 = state_18; [L456] EXPR var_379_arg_0 ? var_379_arg_1 : var_379_arg_2 [L456] SORT_3 var_379 = var_379_arg_0 ? var_379_arg_1 : var_379_arg_2; [L457] SORT_1 var_380_arg_0 = input_7; [L458] SORT_3 var_380_arg_1 = var_373; [L459] SORT_3 var_380_arg_2 = var_379; [L460] EXPR var_380_arg_0 ? var_380_arg_1 : var_380_arg_2 [L460] SORT_3 var_380 = var_380_arg_0 ? var_380_arg_1 : var_380_arg_2; [L461] SORT_3 next_381_arg_1 = var_380; [L462] SORT_19 var_222_arg_0 = var_25; [L463] var_222_arg_0 = var_222_arg_0 & mask_SORT_19 [L464] SORT_13 var_222 = var_222_arg_0; [L465] SORT_13 var_223_arg_0 = var_186; [L466] SORT_13 var_223_arg_1 = var_222; [L467] SORT_1 var_223 = var_223_arg_0 == var_223_arg_1; [L468] SORT_1 var_224_arg_0 = input_6; [L469] SORT_1 var_224_arg_1 = var_223; [L470] SORT_1 var_224 = var_224_arg_0 & var_224_arg_1; [L471] var_224 = var_224 & mask_SORT_1 [L472] SORT_1 var_382_arg_0 = var_224; [L473] SORT_3 var_382_arg_1 = input_4; [L474] SORT_3 var_382_arg_2 = state_24; [L475] EXPR var_382_arg_0 ? var_382_arg_1 : var_382_arg_2 [L475] SORT_3 var_382 = var_382_arg_0 ? var_382_arg_1 : var_382_arg_2; [L476] SORT_1 var_383_arg_0 = input_7; [L477] SORT_3 var_383_arg_1 = var_373; [L478] SORT_3 var_383_arg_2 = var_382; [L479] EXPR var_383_arg_0 ? var_383_arg_1 : var_383_arg_2 [L479] SORT_3 var_383 = var_383_arg_0 ? var_383_arg_1 : var_383_arg_2; [L480] SORT_3 next_384_arg_1 = var_383; [L481] SORT_19 var_215_arg_0 = var_30; [L482] var_215_arg_0 = var_215_arg_0 & mask_SORT_19 [L483] SORT_13 var_215 = var_215_arg_0; [L484] SORT_13 var_216_arg_0 = var_186; [L485] SORT_13 var_216_arg_1 = var_215; [L486] SORT_1 var_216 = var_216_arg_0 == var_216_arg_1; [L487] SORT_1 var_217_arg_0 = input_6; [L488] SORT_1 var_217_arg_1 = var_216; [L489] SORT_1 var_217 = var_217_arg_0 & var_217_arg_1; [L490] var_217 = var_217 & mask_SORT_1 [L491] SORT_1 var_385_arg_0 = var_217; [L492] SORT_3 var_385_arg_1 = input_4; [L493] SORT_3 var_385_arg_2 = state_29; [L494] EXPR var_385_arg_0 ? var_385_arg_1 : var_385_arg_2 [L494] SORT_3 var_385 = var_385_arg_0 ? var_385_arg_1 : var_385_arg_2; [L495] SORT_1 var_386_arg_0 = input_7; [L496] SORT_3 var_386_arg_1 = var_373; [L497] SORT_3 var_386_arg_2 = var_385; [L498] EXPR var_386_arg_0 ? var_386_arg_1 : var_386_arg_2 [L498] SORT_3 var_386 = var_386_arg_0 ? var_386_arg_1 : var_386_arg_2; [L499] SORT_3 next_387_arg_1 = var_386; [L500] SORT_19 var_208_arg_0 = var_35; [L501] var_208_arg_0 = var_208_arg_0 & mask_SORT_19 [L502] SORT_13 var_208 = var_208_arg_0; [L503] SORT_13 var_209_arg_0 = var_186; [L504] SORT_13 var_209_arg_1 = var_208; [L505] SORT_1 var_209 = var_209_arg_0 == var_209_arg_1; [L506] SORT_1 var_210_arg_0 = input_6; [L507] SORT_1 var_210_arg_1 = var_209; [L508] SORT_1 var_210 = var_210_arg_0 & var_210_arg_1; [L509] var_210 = var_210 & mask_SORT_1 [L510] SORT_1 var_388_arg_0 = var_210; [L511] SORT_3 var_388_arg_1 = input_4; [L512] SORT_3 var_388_arg_2 = state_34; [L513] EXPR var_388_arg_0 ? var_388_arg_1 : var_388_arg_2 [L513] SORT_3 var_388 = var_388_arg_0 ? var_388_arg_1 : var_388_arg_2; [L514] SORT_1 var_389_arg_0 = input_7; [L515] SORT_3 var_389_arg_1 = var_373; [L516] SORT_3 var_389_arg_2 = var_388; [L517] EXPR var_389_arg_0 ? var_389_arg_1 : var_389_arg_2 [L517] SORT_3 var_389 = var_389_arg_0 ? var_389_arg_1 : var_389_arg_2; [L518] SORT_3 next_390_arg_1 = var_389; [L519] SORT_19 var_201_arg_0 = var_40; [L520] var_201_arg_0 = var_201_arg_0 & mask_SORT_19 [L521] SORT_13 var_201 = var_201_arg_0; [L522] SORT_13 var_202_arg_0 = var_186; [L523] SORT_13 var_202_arg_1 = var_201; [L524] SORT_1 var_202 = var_202_arg_0 == var_202_arg_1; [L525] SORT_1 var_203_arg_0 = input_6; [L526] SORT_1 var_203_arg_1 = var_202; [L527] SORT_1 var_203 = var_203_arg_0 & var_203_arg_1; [L528] var_203 = var_203 & mask_SORT_1 [L529] SORT_1 var_391_arg_0 = var_203; [L530] SORT_3 var_391_arg_1 = input_4; [L531] SORT_3 var_391_arg_2 = state_39; [L532] EXPR var_391_arg_0 ? var_391_arg_1 : var_391_arg_2 [L532] SORT_3 var_391 = var_391_arg_0 ? var_391_arg_1 : var_391_arg_2; [L533] SORT_1 var_392_arg_0 = input_7; [L534] SORT_3 var_392_arg_1 = var_373; [L535] SORT_3 var_392_arg_2 = var_391; [L536] EXPR var_392_arg_0 ? var_392_arg_1 : var_392_arg_2 [L536] SORT_3 var_392 = var_392_arg_0 ? var_392_arg_1 : var_392_arg_2; [L537] SORT_3 next_393_arg_1 = var_392; [L538] SORT_19 var_194_arg_0 = var_45; [L539] var_194_arg_0 = var_194_arg_0 & mask_SORT_19 [L540] SORT_13 var_194 = var_194_arg_0; [L541] SORT_13 var_195_arg_0 = var_186; [L542] SORT_13 var_195_arg_1 = var_194; [L543] SORT_1 var_195 = var_195_arg_0 == var_195_arg_1; [L544] SORT_1 var_196_arg_0 = input_6; [L545] SORT_1 var_196_arg_1 = var_195; [L546] SORT_1 var_196 = var_196_arg_0 & var_196_arg_1; [L547] var_196 = var_196 & mask_SORT_1 [L548] SORT_1 var_394_arg_0 = var_196; [L549] SORT_3 var_394_arg_1 = input_4; [L550] SORT_3 var_394_arg_2 = state_44; [L551] EXPR var_394_arg_0 ? var_394_arg_1 : var_394_arg_2 [L551] SORT_3 var_394 = var_394_arg_0 ? var_394_arg_1 : var_394_arg_2; [L552] SORT_1 var_395_arg_0 = input_7; [L553] SORT_3 var_395_arg_1 = var_373; [L554] SORT_3 var_395_arg_2 = var_394; [L555] EXPR var_395_arg_0 ? var_395_arg_1 : var_395_arg_2 [L555] SORT_3 var_395 = var_395_arg_0 ? var_395_arg_1 : var_395_arg_2; [L556] SORT_3 next_396_arg_1 = var_395; [L557] SORT_19 var_298_arg_0 = var_50; [L558] var_298_arg_0 = var_298_arg_0 & mask_SORT_19 [L559] SORT_13 var_298 = var_298_arg_0; [L560] SORT_13 var_299_arg_0 = var_186; [L561] SORT_13 var_299_arg_1 = var_298; [L562] SORT_1 var_299 = var_299_arg_0 == var_299_arg_1; [L563] SORT_1 var_300_arg_0 = input_6; [L564] SORT_1 var_300_arg_1 = var_299; [L565] SORT_1 var_300 = var_300_arg_0 & var_300_arg_1; [L566] var_300 = var_300 & mask_SORT_1 [L567] SORT_1 var_397_arg_0 = var_300; [L568] SORT_3 var_397_arg_1 = input_4; [L569] SORT_3 var_397_arg_2 = state_49; [L570] EXPR var_397_arg_0 ? var_397_arg_1 : var_397_arg_2 [L570] SORT_3 var_397 = var_397_arg_0 ? var_397_arg_1 : var_397_arg_2; [L571] SORT_1 var_398_arg_0 = input_7; [L572] SORT_3 var_398_arg_1 = var_373; [L573] SORT_3 var_398_arg_2 = var_397; [L574] EXPR var_398_arg_0 ? var_398_arg_1 : var_398_arg_2 [L574] SORT_3 var_398 = var_398_arg_0 ? var_398_arg_1 : var_398_arg_2; [L575] SORT_3 next_399_arg_1 = var_398; [L576] SORT_19 var_291_arg_0 = var_55; [L577] var_291_arg_0 = var_291_arg_0 & mask_SORT_19 [L578] SORT_13 var_291 = var_291_arg_0; [L579] SORT_13 var_292_arg_0 = var_186; [L580] SORT_13 var_292_arg_1 = var_291; [L581] SORT_1 var_292 = var_292_arg_0 == var_292_arg_1; [L582] SORT_1 var_293_arg_0 = input_6; [L583] SORT_1 var_293_arg_1 = var_292; [L584] SORT_1 var_293 = var_293_arg_0 & var_293_arg_1; [L585] var_293 = var_293 & mask_SORT_1 [L586] SORT_1 var_400_arg_0 = var_293; [L587] SORT_3 var_400_arg_1 = input_4; [L588] SORT_3 var_400_arg_2 = state_54; [L589] EXPR var_400_arg_0 ? var_400_arg_1 : var_400_arg_2 [L589] SORT_3 var_400 = var_400_arg_0 ? var_400_arg_1 : var_400_arg_2; [L590] SORT_1 var_401_arg_0 = input_7; [L591] SORT_3 var_401_arg_1 = var_373; [L592] SORT_3 var_401_arg_2 = var_400; [L593] EXPR var_401_arg_0 ? var_401_arg_1 : var_401_arg_2 [L593] SORT_3 var_401 = var_401_arg_0 ? var_401_arg_1 : var_401_arg_2; [L594] SORT_3 next_402_arg_1 = var_401; [L595] SORT_60 var_284_arg_0 = var_61; [L596] var_284_arg_0 = var_284_arg_0 & mask_SORT_60 [L597] SORT_13 var_284 = var_284_arg_0; [L598] SORT_13 var_285_arg_0 = var_186; [L599] SORT_13 var_285_arg_1 = var_284; [L600] SORT_1 var_285 = var_285_arg_0 == var_285_arg_1; [L601] SORT_1 var_286_arg_0 = input_6; [L602] SORT_1 var_286_arg_1 = var_285; [L603] SORT_1 var_286 = var_286_arg_0 & var_286_arg_1; [L604] var_286 = var_286 & mask_SORT_1 [L605] SORT_1 var_403_arg_0 = var_286; [L606] SORT_3 var_403_arg_1 = input_4; [L607] SORT_3 var_403_arg_2 = state_59; [L608] EXPR var_403_arg_0 ? var_403_arg_1 : var_403_arg_2 [L608] SORT_3 var_403 = var_403_arg_0 ? var_403_arg_1 : var_403_arg_2; [L609] SORT_1 var_404_arg_0 = input_7; [L610] SORT_3 var_404_arg_1 = var_373; [L611] SORT_3 var_404_arg_2 = var_403; [L612] EXPR var_404_arg_0 ? var_404_arg_1 : var_404_arg_2 [L612] SORT_3 var_404 = var_404_arg_0 ? var_404_arg_1 : var_404_arg_2; [L613] SORT_3 next_405_arg_1 = var_404; [L614] SORT_60 var_277_arg_0 = var_66; [L615] var_277_arg_0 = var_277_arg_0 & mask_SORT_60 [L616] SORT_13 var_277 = var_277_arg_0; [L617] SORT_13 var_278_arg_0 = var_186; [L618] SORT_13 var_278_arg_1 = var_277; [L619] SORT_1 var_278 = var_278_arg_0 == var_278_arg_1; [L620] SORT_1 var_279_arg_0 = input_6; [L621] SORT_1 var_279_arg_1 = var_278; [L622] SORT_1 var_279 = var_279_arg_0 & var_279_arg_1; [L623] var_279 = var_279 & mask_SORT_1 [L624] SORT_1 var_406_arg_0 = var_279; [L625] SORT_3 var_406_arg_1 = input_4; [L626] SORT_3 var_406_arg_2 = state_65; [L627] EXPR var_406_arg_0 ? var_406_arg_1 : var_406_arg_2 [L627] SORT_3 var_406 = var_406_arg_0 ? var_406_arg_1 : var_406_arg_2; [L628] SORT_1 var_407_arg_0 = input_7; [L629] SORT_3 var_407_arg_1 = var_373; [L630] SORT_3 var_407_arg_2 = var_406; [L631] EXPR var_407_arg_0 ? var_407_arg_1 : var_407_arg_2 [L631] SORT_3 var_407 = var_407_arg_0 ? var_407_arg_1 : var_407_arg_2; [L632] SORT_3 next_408_arg_1 = var_407; [L633] SORT_60 var_270_arg_0 = var_71; [L634] var_270_arg_0 = var_270_arg_0 & mask_SORT_60 [L635] SORT_13 var_270 = var_270_arg_0; [L636] SORT_13 var_271_arg_0 = var_186; [L637] SORT_13 var_271_arg_1 = var_270; [L638] SORT_1 var_271 = var_271_arg_0 == var_271_arg_1; [L639] SORT_1 var_272_arg_0 = input_6; [L640] SORT_1 var_272_arg_1 = var_271; [L641] SORT_1 var_272 = var_272_arg_0 & var_272_arg_1; [L642] var_272 = var_272 & mask_SORT_1 [L643] SORT_1 var_409_arg_0 = var_272; [L644] SORT_3 var_409_arg_1 = input_4; [L645] SORT_3 var_409_arg_2 = state_70; [L646] EXPR var_409_arg_0 ? var_409_arg_1 : var_409_arg_2 [L646] SORT_3 var_409 = var_409_arg_0 ? var_409_arg_1 : var_409_arg_2; [L647] SORT_1 var_410_arg_0 = input_7; [L648] SORT_3 var_410_arg_1 = var_373; [L649] SORT_3 var_410_arg_2 = var_409; [L650] EXPR var_410_arg_0 ? var_410_arg_1 : var_410_arg_2 [L650] SORT_3 var_410 = var_410_arg_0 ? var_410_arg_1 : var_410_arg_2; [L651] SORT_3 next_411_arg_1 = var_410; [L652] SORT_60 var_263_arg_0 = var_76; [L653] var_263_arg_0 = var_263_arg_0 & mask_SORT_60 [L654] SORT_13 var_263 = var_263_arg_0; [L655] SORT_13 var_264_arg_0 = var_186; [L656] SORT_13 var_264_arg_1 = var_263; [L657] SORT_1 var_264 = var_264_arg_0 == var_264_arg_1; [L658] SORT_1 var_265_arg_0 = input_6; [L659] SORT_1 var_265_arg_1 = var_264; [L660] SORT_1 var_265 = var_265_arg_0 & var_265_arg_1; [L661] var_265 = var_265 & mask_SORT_1 [L662] SORT_1 var_412_arg_0 = var_265; [L663] SORT_3 var_412_arg_1 = input_4; [L664] SORT_3 var_412_arg_2 = state_75; [L665] EXPR var_412_arg_0 ? var_412_arg_1 : var_412_arg_2 [L665] SORT_3 var_412 = var_412_arg_0 ? var_412_arg_1 : var_412_arg_2; [L666] SORT_1 var_413_arg_0 = input_7; [L667] SORT_3 var_413_arg_1 = var_373; [L668] SORT_3 var_413_arg_2 = var_412; [L669] EXPR var_413_arg_0 ? var_413_arg_1 : var_413_arg_2 [L669] SORT_3 var_413 = var_413_arg_0 ? var_413_arg_1 : var_413_arg_2; [L670] SORT_3 next_414_arg_1 = var_413; [L671] SORT_81 var_256_arg_0 = var_82; [L672] var_256_arg_0 = var_256_arg_0 & mask_SORT_81 [L673] SORT_13 var_256 = var_256_arg_0; [L674] SORT_13 var_257_arg_0 = var_186; [L675] SORT_13 var_257_arg_1 = var_256; [L676] SORT_1 var_257 = var_257_arg_0 == var_257_arg_1; [L677] SORT_1 var_258_arg_0 = input_6; [L678] SORT_1 var_258_arg_1 = var_257; [L679] SORT_1 var_258 = var_258_arg_0 & var_258_arg_1; [L680] var_258 = var_258 & mask_SORT_1 [L681] SORT_1 var_415_arg_0 = var_258; [L682] SORT_3 var_415_arg_1 = input_4; [L683] SORT_3 var_415_arg_2 = state_80; [L684] EXPR var_415_arg_0 ? var_415_arg_1 : var_415_arg_2 [L684] SORT_3 var_415 = var_415_arg_0 ? var_415_arg_1 : var_415_arg_2; [L685] SORT_1 var_416_arg_0 = input_7; [L686] SORT_3 var_416_arg_1 = var_373; [L687] SORT_3 var_416_arg_2 = var_415; [L688] EXPR var_416_arg_0 ? var_416_arg_1 : var_416_arg_2 [L688] SORT_3 var_416 = var_416_arg_0 ? var_416_arg_1 : var_416_arg_2; [L689] SORT_3 next_417_arg_1 = var_416; [L690] SORT_81 var_249_arg_0 = var_87; [L691] var_249_arg_0 = var_249_arg_0 & mask_SORT_81 [L692] SORT_13 var_249 = var_249_arg_0; [L693] SORT_13 var_250_arg_0 = var_186; [L694] SORT_13 var_250_arg_1 = var_249; [L695] SORT_1 var_250 = var_250_arg_0 == var_250_arg_1; [L696] SORT_1 var_251_arg_0 = input_6; [L697] SORT_1 var_251_arg_1 = var_250; [L698] SORT_1 var_251 = var_251_arg_0 & var_251_arg_1; [L699] var_251 = var_251 & mask_SORT_1 [L700] SORT_1 var_418_arg_0 = var_251; [L701] SORT_3 var_418_arg_1 = input_4; [L702] SORT_3 var_418_arg_2 = state_86; [L703] EXPR var_418_arg_0 ? var_418_arg_1 : var_418_arg_2 [L703] SORT_3 var_418 = var_418_arg_0 ? var_418_arg_1 : var_418_arg_2; [L704] SORT_1 var_419_arg_0 = input_7; [L705] SORT_3 var_419_arg_1 = var_373; [L706] SORT_3 var_419_arg_2 = var_418; [L707] EXPR var_419_arg_0 ? var_419_arg_1 : var_419_arg_2 [L707] SORT_3 var_419 = var_419_arg_0 ? var_419_arg_1 : var_419_arg_2; [L708] SORT_3 next_420_arg_1 = var_419; [L709] SORT_1 var_242_arg_0 = var_92; [L710] var_242_arg_0 = var_242_arg_0 & mask_SORT_1 [L711] SORT_13 var_242 = var_242_arg_0; [L712] SORT_13 var_243_arg_0 = var_186; [L713] SORT_13 var_243_arg_1 = var_242; [L714] SORT_1 var_243 = var_243_arg_0 == var_243_arg_1; [L715] SORT_1 var_244_arg_0 = input_6; [L716] SORT_1 var_244_arg_1 = var_243; [L717] SORT_1 var_244 = var_244_arg_0 & var_244_arg_1; [L718] var_244 = var_244 & mask_SORT_1 [L719] SORT_1 var_421_arg_0 = var_244; [L720] SORT_3 var_421_arg_1 = input_4; [L721] SORT_3 var_421_arg_2 = state_91; [L722] EXPR var_421_arg_0 ? var_421_arg_1 : var_421_arg_2 [L722] SORT_3 var_421 = var_421_arg_0 ? var_421_arg_1 : var_421_arg_2; [L723] SORT_1 var_422_arg_0 = input_7; [L724] SORT_3 var_422_arg_1 = var_373; [L725] SORT_3 var_422_arg_2 = var_421; [L726] EXPR var_422_arg_0 ? var_422_arg_1 : var_422_arg_2 [L726] SORT_3 var_422 = var_422_arg_0 ? var_422_arg_1 : var_422_arg_2; [L727] SORT_3 next_423_arg_1 = var_422; [L728] SORT_13 var_187_arg_0 = var_186; [L729] SORT_1 var_187 = var_187_arg_0 != 0; [L730] SORT_1 var_188_arg_0 = var_187; [L731] SORT_1 var_188 = ~var_188_arg_0; [L732] SORT_1 var_189_arg_0 = input_6; [L733] SORT_1 var_189_arg_1 = var_188; [L734] SORT_1 var_189 = var_189_arg_0 & var_189_arg_1; [L735] var_189 = var_189 & mask_SORT_1 [L736] SORT_1 var_424_arg_0 = var_189; [L737] SORT_3 var_424_arg_1 = input_4; [L738] SORT_3 var_424_arg_2 = state_96; [L739] EXPR var_424_arg_0 ? var_424_arg_1 : var_424_arg_2 [L739] SORT_3 var_424 = var_424_arg_0 ? var_424_arg_1 : var_424_arg_2; [L740] SORT_1 var_425_arg_0 = input_7; [L741] SORT_3 var_425_arg_1 = var_373; [L742] SORT_3 var_425_arg_2 = var_424; [L743] EXPR var_425_arg_0 ? var_425_arg_1 : var_425_arg_2 [L743] SORT_3 var_425 = var_425_arg_0 ? var_425_arg_1 : var_425_arg_2; [L744] SORT_3 next_426_arg_1 = var_425; [L745] SORT_1 var_427_arg_0 = input_6; [L746] var_427_arg_0 = var_427_arg_0 & mask_SORT_1 [L747] SORT_11 var_427 = var_427_arg_0; [L748] SORT_11 var_428_arg_0 = state_101; [L749] SORT_11 var_428_arg_1 = var_427; [L750] SORT_11 var_428 = var_428_arg_0 + var_428_arg_1; [L751] SORT_1 var_429_arg_0 = input_5; [L752] var_429_arg_0 = var_429_arg_0 & mask_SORT_1 [L753] SORT_11 var_429 = var_429_arg_0; [L754] SORT_11 var_430_arg_0 = var_428; [L755] SORT_11 var_430_arg_1 = var_429; [L756] SORT_11 var_430 = var_430_arg_0 - var_430_arg_1; [L757] SORT_1 var_431_arg_0 = input_7; [L758] SORT_11 var_431_arg_1 = var_122; [L759] SORT_11 var_431_arg_2 = var_430; [L760] EXPR var_431_arg_0 ? var_431_arg_1 : var_431_arg_2 [L760] SORT_11 var_431 = var_431_arg_0 ? var_431_arg_1 : var_431_arg_2; [L761] var_431 = var_431 & mask_SORT_11 [L762] SORT_11 next_432_arg_1 = var_431; [L763] SORT_1 var_333_arg_0 = state_109; [L764] SORT_1 var_333 = ~var_333_arg_0; [L765] var_333 = var_333 & mask_SORT_1 [L766] SORT_1 var_329_arg_0 = input_8; [L767] SORT_1 var_329_arg_1 = input_6; [L768] SORT_1 var_329 = var_329_arg_0 & var_329_arg_1; [L769] SORT_1 var_330_arg_0 = state_109; [L770] SORT_1 var_330_arg_1 = var_329; [L771] SORT_1 var_330 = var_330_arg_0 | var_330_arg_1; [L772] SORT_1 var_433_arg_0 = var_333; [L773] SORT_1 var_433_arg_1 = var_330; [L774] SORT_1 var_433_arg_2 = state_109; [L775] EXPR var_433_arg_0 ? var_433_arg_1 : var_433_arg_2 [L775] SORT_1 var_433 = var_433_arg_0 ? var_433_arg_1 : var_433_arg_2; [L776] SORT_1 var_434_arg_0 = input_7; [L777] SORT_1 var_434_arg_1 = var_152; [L778] SORT_1 var_434_arg_2 = var_433; [L779] EXPR var_434_arg_0 ? var_434_arg_1 : var_434_arg_2 [L779] SORT_1 var_434 = var_434_arg_0 ? var_434_arg_1 : var_434_arg_2; [L780] SORT_1 next_435_arg_1 = var_434; [L781] SORT_1 var_341_arg_0 = var_126; [L782] SORT_1 var_341_arg_1 = state_110; [L783] SORT_1 var_341 = var_341_arg_0 | var_341_arg_1; [L784] SORT_1 var_436_arg_0 = var_92; [L785] SORT_1 var_436_arg_1 = var_341; [L786] SORT_1 var_436_arg_2 = state_110; [L787] EXPR var_436_arg_0 ? var_436_arg_1 : var_436_arg_2 [L787] SORT_1 var_436 = var_436_arg_0 ? var_436_arg_1 : var_436_arg_2; [L788] SORT_1 var_437_arg_0 = input_7; [L789] SORT_1 var_437_arg_1 = var_152; [L790] SORT_1 var_437_arg_2 = var_436; [L791] EXPR var_437_arg_0 ? var_437_arg_1 : var_437_arg_2 [L791] SORT_1 var_437 = var_437_arg_0 ? var_437_arg_1 : var_437_arg_2; [L792] SORT_1 next_438_arg_1 = var_437; [L793] SORT_1 var_353_arg_0 = input_6; [L794] SORT_1 var_353_arg_1 = input_5; [L795] SORT_1 var_353 = var_353_arg_0 | var_353_arg_1; [L796] SORT_1 var_354_arg_0 = var_353; [L797] SORT_1 var_354_arg_1 = input_7; [L798] SORT_1 var_354 = var_354_arg_0 | var_354_arg_1; [L799] SORT_1 var_355_arg_0 = var_354; [L800] SORT_1 var_355_arg_1 = state_109; [L801] SORT_1 var_355 = var_355_arg_0 | var_355_arg_1; [L802] var_355 = var_355 & mask_SORT_1 [L803] SORT_1 var_439_arg_0 = var_355; [L804] SORT_11 var_439_arg_1 = var_123; [L805] SORT_11 var_439_arg_2 = state_113; [L806] EXPR var_439_arg_0 ? var_439_arg_1 : var_439_arg_2 [L806] SORT_11 var_439 = var_439_arg_0 ? var_439_arg_1 : var_439_arg_2; [L807] SORT_1 var_440_arg_0 = input_7; [L808] SORT_11 var_440_arg_1 = var_122; [L809] SORT_11 var_440_arg_2 = var_439; [L810] EXPR var_440_arg_0 ? var_440_arg_1 : var_440_arg_2 [L810] SORT_11 var_440 = var_440_arg_0 ? var_440_arg_1 : var_440_arg_2; [L811] var_440 = var_440 & mask_SORT_11 [L812] SORT_11 next_441_arg_1 = var_440; [L813] SORT_1 var_338_arg_0 = var_329; [L814] SORT_1 var_338_arg_1 = var_333; [L815] SORT_1 var_338 = var_338_arg_0 & var_338_arg_1; [L816] var_338 = var_338 & mask_SORT_1 [L817] SORT_1 var_442_arg_0 = var_338; [L818] SORT_3 var_442_arg_1 = input_4; [L819] SORT_3 var_442_arg_2 = state_128; [L820] EXPR var_442_arg_0 ? var_442_arg_1 : var_442_arg_2 [L820] SORT_3 var_442 = var_442_arg_0 ? var_442_arg_1 : var_442_arg_2; [L821] SORT_1 var_443_arg_0 = input_7; [L822] SORT_3 var_443_arg_1 = var_373; [L823] SORT_3 var_443_arg_2 = var_442; [L824] EXPR var_443_arg_0 ? var_443_arg_1 : var_443_arg_2 [L824] SORT_3 var_443 = var_443_arg_0 ? var_443_arg_1 : var_443_arg_2; [L825] var_443 = var_443 & mask_SORT_3 [L826] SORT_3 next_444_arg_1 = var_443; [L827] SORT_1 next_445_arg_1 = var_152; [L828] SORT_1 var_309_arg_0 = input_6; [L829] var_309_arg_0 = var_309_arg_0 & mask_SORT_1 [L830] SORT_11 var_309 = var_309_arg_0; [L831] SORT_11 var_310_arg_0 = state_185; [L832] SORT_11 var_310_arg_1 = var_309; [L833] SORT_11 var_310 = var_310_arg_0 + var_310_arg_1; [L834] SORT_1 var_446_arg_0 = var_161; [L835] SORT_11 var_446_arg_1 = var_310; [L836] SORT_11 var_446_arg_2 = state_185; [L837] EXPR var_446_arg_0 ? var_446_arg_1 : var_446_arg_2 [L837] SORT_11 var_446 = var_446_arg_0 ? var_446_arg_1 : var_446_arg_2; [L838] SORT_1 var_447_arg_0 = input_7; [L839] SORT_11 var_447_arg_1 = var_122; [L840] SORT_11 var_447_arg_2 = var_446; [L841] EXPR var_447_arg_0 ? var_447_arg_1 : var_447_arg_2 [L841] SORT_11 var_447 = var_447_arg_0 ? var_447_arg_1 : var_447_arg_2; [L842] SORT_11 next_448_arg_1 = var_447; [L844] state_10 = next_375_arg_1 [L845] state_12 = next_378_arg_1 [L846] state_18 = next_381_arg_1 [L847] state_24 = next_384_arg_1 [L848] state_29 = next_387_arg_1 [L849] state_34 = next_390_arg_1 [L850] state_39 = next_393_arg_1 [L851] state_44 = next_396_arg_1 [L852] state_49 = next_399_arg_1 [L853] state_54 = next_402_arg_1 [L854] state_59 = next_405_arg_1 [L855] state_65 = next_408_arg_1 [L856] state_70 = next_411_arg_1 [L857] state_75 = next_414_arg_1 [L858] state_80 = next_417_arg_1 [L859] state_86 = next_420_arg_1 [L860] state_91 = next_423_arg_1 [L861] state_96 = next_426_arg_1 [L862] state_101 = next_432_arg_1 [L863] state_109 = next_435_arg_1 [L864] state_110 = next_438_arg_1 [L865] state_113 = next_441_arg_1 [L866] state_128 = next_444_arg_1 [L867] state_132 = next_445_arg_1 [L868] state_185 = next_448_arg_1 VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=20, input_2=3, input_4=1, input_5=38, input_6=47, input_7=0, input_8=27, input_9=0, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, next_381_arg_1=1, next_384_arg_1=16, next_387_arg_1=1, next_390_arg_1=0, next_393_arg_1=1, next_396_arg_1=16, next_399_arg_1=16, next_402_arg_1=29, next_405_arg_1=0, next_408_arg_1=1, next_411_arg_1=0, next_414_arg_1=1, next_417_arg_1=1, next_420_arg_1=1, next_423_arg_1=0, next_426_arg_1=32, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=255, state_10=0, state_101=1, state_109=1, state_110=1, state_113=0, state_12=0, state_128=0, state_132=0, state_18=1, state_185=255, state_24=16, state_29=1, state_34=0, state_39=1, state_44=16, state_49=16, state_54=29, state_59=0, state_65=1, state_70=0, state_75=1, state_80=1, state_86=1, state_91=0, state_96=32, var_102=0, var_102_arg_0=0, var_103=6, var_103_arg_0=0, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_111=1, var_111_arg_0=1, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=23, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=1, var_116_arg_0=1, var_117=1, var_117_arg_0=47, var_117_arg_1=1, var_118=1, var_118_arg_0=1, var_119=24, var_119_arg_0=23, var_119_arg_1=1, var_120=0, var_120_arg_0=0, var_121=24, var_121_arg_0=24, var_121_arg_1=0, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=24, var_124=0, var_124_arg_0=0, var_125=0, var_125_arg_0=0, var_126=0, var_126_arg_0=1, var_126_arg_1=0, var_127=20, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=20, var_130_arg_0=20, var_130_arg_1=1, var_134=0, var_134_arg_0=0, var_134_arg_1=1, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=0, var_136_arg_1=2, var_138=34, var_138_arg_0=0, var_139=34, var_139_arg_0=47, var_14=0, var_140=34, var_140_arg_0=34, var_140_arg_1=34, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=34, var_142_arg_1=255, var_144=0, var_144_arg_0=6, var_145=2, var_145_arg_0=38, var_146=1, var_146_arg_0=0, var_146_arg_1=2, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=1, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=20, var_151_arg_0=1, var_151_arg_1=20, var_151_arg_2=20, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=20, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=46, var_160_arg_0=47, var_160_arg_1=38, var_161=1, var_161_arg_0=46, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=4, var_186_arg_0=254, var_187=1, var_187_arg_0=4, var_188=0, var_188_arg_0=1, var_189=0, var_189_arg_0=47, var_189_arg_1=0, var_194=3, var_194_arg_0=3, var_195=0, var_195_arg_0=4, var_195_arg_1=3, var_196=0, var_196_arg_0=47, var_196_arg_1=0, var_20=15, var_201=4, var_201_arg_0=4, var_202=1, var_202_arg_0=4, var_202_arg_1=4, var_203=1, var_203_arg_0=47, var_203_arg_1=1, var_208=28, var_208_arg_0=28, var_209=0, var_209_arg_0=4, var_209_arg_1=28, var_21=0, var_210=0, var_210_arg_0=47, var_210_arg_1=0, var_215=4, var_215_arg_0=4, var_216=1, var_216_arg_0=4, var_216_arg_1=4, var_217=1, var_217_arg_0=47, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=4, var_223_arg_1=0, var_224=0, var_224_arg_0=47, var_224_arg_1=0, var_229=4, var_229_arg_0=4, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=4, var_230_arg_1=4, var_231=1, var_231_arg_0=47, var_231_arg_1=1, var_236=0, var_236_arg_0=4, var_236_arg_1=16, var_237=0, var_237_arg_0=47, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=4, var_243_arg_1=1, var_244=0, var_244_arg_0=47, var_244_arg_1=0, var_249=4, var_249_arg_0=4, var_25=14, var_250=1, var_250_arg_0=4, var_250_arg_1=4, var_251=1, var_251_arg_0=47, var_251_arg_1=1, var_256=253, var_256_arg_0=253, var_257=0, var_257_arg_0=4, var_257_arg_1=253, var_258=0, var_258_arg_0=47, var_258_arg_1=0, var_26=0, var_263=4, var_263_arg_0=4, var_264=1, var_264_arg_0=4, var_264_arg_1=4, var_265=1, var_265_arg_0=47, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=0, var_271_arg_0=4, var_271_arg_1=0, var_272=0, var_272_arg_0=47, var_272_arg_1=0, var_277=4, var_277_arg_0=4, var_278=1, var_278_arg_0=4, var_278_arg_1=4, var_279=1, var_279_arg_0=47, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=16, var_284=0, var_284_arg_0=0, var_285=0, var_285_arg_0=4, var_285_arg_1=0, var_286=0, var_286_arg_0=47, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=16, var_28_arg_2=0, var_291=0, var_291_arg_0=0, var_292=0, var_292_arg_0=4, var_292_arg_1=0, var_293=0, var_293_arg_0=47, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=4, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=47, var_300_arg_1=0, var_303=0, var_303_arg_0=0, var_304=0, var_304_arg_0=0, var_304_arg_1=0, var_309=1, var_309_arg_0=1, var_31=0, var_310=255, var_310_arg_0=254, var_310_arg_1=1, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=27, var_329_arg_1=47, var_32_arg_0=0, var_32_arg_1=0, var_33=16, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=16, var_33_arg_2=16, var_341=1, var_341_arg_0=0, var_341_arg_1=1, var_35=12, var_353=1, var_353_arg_0=47, var_353_arg_1=38, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=1, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=0, var_376_arg_0=1, var_376_arg_1=0, var_376_arg_2=0, var_377=0, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=0, var_379=1, var_379_arg_0=1, var_379_arg_1=1, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=1, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=1, var_382=16, var_382_arg_0=0, var_382_arg_1=1, var_382_arg_2=16, var_383=16, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=16, var_385=1, var_385_arg_0=1, var_385_arg_1=1, var_385_arg_2=16, var_386=1, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=1, var_388=0, var_388_arg_0=0, var_388_arg_1=1, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=16, var_391=1, var_391_arg_0=1, var_391_arg_1=1, var_391_arg_2=0, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=16, var_394_arg_0=0, var_394_arg_1=1, var_394_arg_2=16, var_395=16, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=16, var_397=16, var_397_arg_0=0, var_397_arg_1=1, var_397_arg_2=16, var_398=16, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=16, var_40=11, var_400=29, var_400_arg_0=0, var_400_arg_1=1, var_400_arg_2=29, var_401=29, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=29, var_403=0, var_403_arg_0=0, var_403_arg_1=1, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=1, var_406_arg_0=1, var_406_arg_1=1, var_406_arg_2=0, var_407=1, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=1, var_409=0, var_409_arg_0=0, var_409_arg_1=1, var_409_arg_2=0, var_41=0, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=1, var_412_arg_0=1, var_412_arg_1=1, var_412_arg_2=65535, var_413=1, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=1, var_415=1, var_415_arg_0=0, var_415_arg_1=1, var_415_arg_2=1, var_416=1, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=1, var_418=1, var_418_arg_0=1, var_418_arg_1=1, var_418_arg_2=1, var_419=1, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=1, var_41_arg_0=0, var_42=1, var_421=0, var_421_arg_0=0, var_421_arg_1=1, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=32, var_424_arg_0=0, var_424_arg_1=1, var_424_arg_2=32, var_425=32, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=32, var_427=1, var_427_arg_0=1, var_428=1, var_428_arg_0=0, var_428_arg_1=1, var_429=0, var_429_arg_0=0, var_42_arg_0=0, var_42_arg_1=0, var_43=0, var_430=1, var_430_arg_0=1, var_430_arg_1=0, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=1, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=23, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=1, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=255, var_446_arg_0=1, var_446_arg_1=255, var_446_arg_2=254, var_447=255, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=255, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=16, var_48_arg_0=1, var_48_arg_1=16, var_48_arg_2=0, var_50=9, var_51=39, var_51_arg_0=39, var_52=0, var_52_arg_0=0, var_52_arg_1=39, var_53=16, var_53_arg_0=0, var_53_arg_1=16, var_53_arg_2=16, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=29, var_58_arg_0=1, var_58_arg_1=29, var_58_arg_2=16, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=29, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=2, var_77_arg_0=2, var_78=0, var_78_arg_0=0, var_78_arg_1=2, var_79=0, var_79_arg_0=0, var_79_arg_1=65535, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=1, var_85_arg_2=0, var_87=2, var_88=1, var_88_arg_0=1, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=1, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=32, var_99_arg_2=0] [L106] input_2 = __VERIFIER_nondet_uchar() [L107] input_4 = __VERIFIER_nondet_ushort() [L108] input_5 = __VERIFIER_nondet_uchar() [L109] input_6 = __VERIFIER_nondet_uchar() [L110] input_7 = __VERIFIER_nondet_uchar() [L111] input_7 = input_7 & mask_SORT_1 [L112] input_8 = __VERIFIER_nondet_uchar() [L113] input_9 = __VERIFIER_nondet_ushort() [L114] input_150 = __VERIFIER_nondet_uchar() [L116] SORT_1 var_134_arg_0 = input_7; [L117] SORT_1 var_134_arg_1 = state_132; [L118] SORT_1 var_134 = var_134_arg_0 == var_134_arg_1; [L119] SORT_1 var_135_arg_0 = var_92; [L120] SORT_1 var_135 = ~var_135_arg_0; [L121] SORT_1 var_136_arg_0 = var_134; [L122] SORT_1 var_136_arg_1 = var_135; [L123] SORT_1 var_136 = var_136_arg_0 | var_136_arg_1; [L124] var_136 = var_136 & mask_SORT_1 [L125] SORT_1 constr_137_arg_0 = var_136; VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=26, input_6=40, input_7=0, input_8=1, input_9=65532, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, next_381_arg_1=1, next_384_arg_1=16, next_387_arg_1=1, next_390_arg_1=0, next_393_arg_1=1, next_396_arg_1=16, next_399_arg_1=16, next_402_arg_1=29, next_405_arg_1=0, next_408_arg_1=1, next_411_arg_1=0, next_414_arg_1=1, next_417_arg_1=1, next_420_arg_1=1, next_423_arg_1=0, next_426_arg_1=32, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=255, state_10=0, state_101=1, state_109=1, state_110=1, state_113=0, state_12=0, state_128=0, state_132=0, state_18=1, state_185=255, state_24=16, state_29=1, state_34=0, state_39=1, state_44=16, state_49=16, state_54=29, state_59=0, state_65=1, state_70=0, state_75=1, state_80=1, state_86=1, state_91=0, state_96=32, var_102=0, var_102_arg_0=0, var_103=6, var_103_arg_0=0, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_111=1, var_111_arg_0=1, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=23, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=1, var_116_arg_0=1, var_117=1, var_117_arg_0=47, var_117_arg_1=1, var_118=1, var_118_arg_0=1, var_119=24, var_119_arg_0=23, var_119_arg_1=1, var_120=0, var_120_arg_0=0, var_121=24, var_121_arg_0=24, var_121_arg_1=0, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=24, var_124=0, var_124_arg_0=0, var_125=0, var_125_arg_0=0, var_126=0, var_126_arg_0=1, var_126_arg_1=0, var_127=20, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=20, var_130_arg_0=20, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=34, var_138_arg_0=0, var_139=34, var_139_arg_0=47, var_14=0, var_140=34, var_140_arg_0=34, var_140_arg_1=34, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=34, var_142_arg_1=255, var_144=0, var_144_arg_0=6, var_145=2, var_145_arg_0=38, var_146=1, var_146_arg_0=0, var_146_arg_1=2, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=1, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=20, var_151_arg_0=1, var_151_arg_1=20, var_151_arg_2=20, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=20, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=46, var_160_arg_0=47, var_160_arg_1=38, var_161=1, var_161_arg_0=46, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=4, var_186_arg_0=254, var_187=1, var_187_arg_0=4, var_188=0, var_188_arg_0=1, var_189=0, var_189_arg_0=47, var_189_arg_1=0, var_194=3, var_194_arg_0=3, var_195=0, var_195_arg_0=4, var_195_arg_1=3, var_196=0, var_196_arg_0=47, var_196_arg_1=0, var_20=15, var_201=4, var_201_arg_0=4, var_202=1, var_202_arg_0=4, var_202_arg_1=4, var_203=1, var_203_arg_0=47, var_203_arg_1=1, var_208=28, var_208_arg_0=28, var_209=0, var_209_arg_0=4, var_209_arg_1=28, var_21=0, var_210=0, var_210_arg_0=47, var_210_arg_1=0, var_215=4, var_215_arg_0=4, var_216=1, var_216_arg_0=4, var_216_arg_1=4, var_217=1, var_217_arg_0=47, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=4, var_223_arg_1=0, var_224=0, var_224_arg_0=47, var_224_arg_1=0, var_229=4, var_229_arg_0=4, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=4, var_230_arg_1=4, var_231=1, var_231_arg_0=47, var_231_arg_1=1, var_236=0, var_236_arg_0=4, var_236_arg_1=16, var_237=0, var_237_arg_0=47, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=4, var_243_arg_1=1, var_244=0, var_244_arg_0=47, var_244_arg_1=0, var_249=4, var_249_arg_0=4, var_25=14, var_250=1, var_250_arg_0=4, var_250_arg_1=4, var_251=1, var_251_arg_0=47, var_251_arg_1=1, var_256=253, var_256_arg_0=253, var_257=0, var_257_arg_0=4, var_257_arg_1=253, var_258=0, var_258_arg_0=47, var_258_arg_1=0, var_26=0, var_263=4, var_263_arg_0=4, var_264=1, var_264_arg_0=4, var_264_arg_1=4, var_265=1, var_265_arg_0=47, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=0, var_271_arg_0=4, var_271_arg_1=0, var_272=0, var_272_arg_0=47, var_272_arg_1=0, var_277=4, var_277_arg_0=4, var_278=1, var_278_arg_0=4, var_278_arg_1=4, var_279=1, var_279_arg_0=47, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=16, var_284=0, var_284_arg_0=0, var_285=0, var_285_arg_0=4, var_285_arg_1=0, var_286=0, var_286_arg_0=47, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=16, var_28_arg_2=0, var_291=0, var_291_arg_0=0, var_292=0, var_292_arg_0=4, var_292_arg_1=0, var_293=0, var_293_arg_0=47, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=4, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=47, var_300_arg_1=0, var_303=0, var_303_arg_0=0, var_304=0, var_304_arg_0=0, var_304_arg_1=0, var_309=1, var_309_arg_0=1, var_31=0, var_310=255, var_310_arg_0=254, var_310_arg_1=1, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=27, var_329_arg_1=47, var_32_arg_0=0, var_32_arg_1=0, var_33=16, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=16, var_33_arg_2=16, var_341=1, var_341_arg_0=0, var_341_arg_1=1, var_35=12, var_353=1, var_353_arg_0=47, var_353_arg_1=38, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=1, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=0, var_376_arg_0=1, var_376_arg_1=0, var_376_arg_2=0, var_377=0, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=0, var_379=1, var_379_arg_0=1, var_379_arg_1=1, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=1, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=1, var_382=16, var_382_arg_0=0, var_382_arg_1=1, var_382_arg_2=16, var_383=16, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=16, var_385=1, var_385_arg_0=1, var_385_arg_1=1, var_385_arg_2=16, var_386=1, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=1, var_388=0, var_388_arg_0=0, var_388_arg_1=1, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=16, var_391=1, var_391_arg_0=1, var_391_arg_1=1, var_391_arg_2=0, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=16, var_394_arg_0=0, var_394_arg_1=1, var_394_arg_2=16, var_395=16, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=16, var_397=16, var_397_arg_0=0, var_397_arg_1=1, var_397_arg_2=16, var_398=16, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=16, var_40=11, var_400=29, var_400_arg_0=0, var_400_arg_1=1, var_400_arg_2=29, var_401=29, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=29, var_403=0, var_403_arg_0=0, var_403_arg_1=1, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=1, var_406_arg_0=1, var_406_arg_1=1, var_406_arg_2=0, var_407=1, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=1, var_409=0, var_409_arg_0=0, var_409_arg_1=1, var_409_arg_2=0, var_41=0, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=1, var_412_arg_0=1, var_412_arg_1=1, var_412_arg_2=65535, var_413=1, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=1, var_415=1, var_415_arg_0=0, var_415_arg_1=1, var_415_arg_2=1, var_416=1, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=1, var_418=1, var_418_arg_0=1, var_418_arg_1=1, var_418_arg_2=1, var_419=1, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=1, var_41_arg_0=0, var_42=1, var_421=0, var_421_arg_0=0, var_421_arg_1=1, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=32, var_424_arg_0=0, var_424_arg_1=1, var_424_arg_2=32, var_425=32, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=32, var_427=1, var_427_arg_0=1, var_428=1, var_428_arg_0=0, var_428_arg_1=1, var_429=0, var_429_arg_0=0, var_42_arg_0=0, var_42_arg_1=0, var_43=0, var_430=1, var_430_arg_0=1, var_430_arg_1=0, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=1, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=23, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=1, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=255, var_446_arg_0=1, var_446_arg_1=255, var_446_arg_2=254, var_447=255, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=255, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=16, var_48_arg_0=1, var_48_arg_1=16, var_48_arg_2=0, var_50=9, var_51=39, var_51_arg_0=39, var_52=0, var_52_arg_0=0, var_52_arg_1=39, var_53=16, var_53_arg_0=0, var_53_arg_1=16, var_53_arg_2=16, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=29, var_58_arg_0=1, var_58_arg_1=29, var_58_arg_2=16, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=29, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=2, var_77_arg_0=2, var_78=0, var_78_arg_0=0, var_78_arg_1=2, var_79=0, var_79_arg_0=0, var_79_arg_1=65535, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=1, var_85_arg_2=0, var_87=2, var_88=1, var_88_arg_0=1, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=1, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=32, var_99_arg_2=0] [L126] CALL assume_abort_if_not(constr_137_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L126] RET assume_abort_if_not(constr_137_arg_0) VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=26, input_6=40, input_7=0, input_8=1, input_9=65532, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, next_381_arg_1=1, next_384_arg_1=16, next_387_arg_1=1, next_390_arg_1=0, next_393_arg_1=1, next_396_arg_1=16, next_399_arg_1=16, next_402_arg_1=29, next_405_arg_1=0, next_408_arg_1=1, next_411_arg_1=0, next_414_arg_1=1, next_417_arg_1=1, next_420_arg_1=1, next_423_arg_1=0, next_426_arg_1=32, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=255, state_10=0, state_101=1, state_109=1, state_110=1, state_113=0, state_12=0, state_128=0, state_132=0, state_18=1, state_185=255, state_24=16, state_29=1, state_34=0, state_39=1, state_44=16, state_49=16, state_54=29, state_59=0, state_65=1, state_70=0, state_75=1, state_80=1, state_86=1, state_91=0, state_96=32, var_102=0, var_102_arg_0=0, var_103=6, var_103_arg_0=0, var_105=17, var_106=31, var_106_arg_0=31, var_107=0, var_107_arg_0=0, var_107_arg_1=31, var_111=1, var_111_arg_0=1, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=23, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=1, var_116_arg_0=1, var_117=1, var_117_arg_0=47, var_117_arg_1=1, var_118=1, var_118_arg_0=1, var_119=24, var_119_arg_0=23, var_119_arg_1=1, var_120=0, var_120_arg_0=0, var_121=24, var_121_arg_0=24, var_121_arg_1=0, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=24, var_124=0, var_124_arg_0=0, var_125=0, var_125_arg_0=0, var_126=0, var_126_arg_0=1, var_126_arg_1=0, var_127=20, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=20, var_130_arg_0=20, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=34, var_138_arg_0=0, var_139=34, var_139_arg_0=47, var_14=0, var_140=34, var_140_arg_0=34, var_140_arg_1=34, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=34, var_142_arg_1=255, var_144=0, var_144_arg_0=6, var_145=2, var_145_arg_0=38, var_146=1, var_146_arg_0=0, var_146_arg_1=2, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=1, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=20, var_151_arg_0=1, var_151_arg_1=20, var_151_arg_2=20, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=20, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=46, var_160_arg_0=47, var_160_arg_1=38, var_161=1, var_161_arg_0=46, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=4, var_186_arg_0=254, var_187=1, var_187_arg_0=4, var_188=0, var_188_arg_0=1, var_189=0, var_189_arg_0=47, var_189_arg_1=0, var_194=3, var_194_arg_0=3, var_195=0, var_195_arg_0=4, var_195_arg_1=3, var_196=0, var_196_arg_0=47, var_196_arg_1=0, var_20=15, var_201=4, var_201_arg_0=4, var_202=1, var_202_arg_0=4, var_202_arg_1=4, var_203=1, var_203_arg_0=47, var_203_arg_1=1, var_208=28, var_208_arg_0=28, var_209=0, var_209_arg_0=4, var_209_arg_1=28, var_21=0, var_210=0, var_210_arg_0=47, var_210_arg_1=0, var_215=4, var_215_arg_0=4, var_216=1, var_216_arg_0=4, var_216_arg_1=4, var_217=1, var_217_arg_0=47, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=4, var_223_arg_1=0, var_224=0, var_224_arg_0=47, var_224_arg_1=0, var_229=4, var_229_arg_0=4, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=4, var_230_arg_1=4, var_231=1, var_231_arg_0=47, var_231_arg_1=1, var_236=0, var_236_arg_0=4, var_236_arg_1=16, var_237=0, var_237_arg_0=47, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=4, var_243_arg_1=1, var_244=0, var_244_arg_0=47, var_244_arg_1=0, var_249=4, var_249_arg_0=4, var_25=14, var_250=1, var_250_arg_0=4, var_250_arg_1=4, var_251=1, var_251_arg_0=47, var_251_arg_1=1, var_256=253, var_256_arg_0=253, var_257=0, var_257_arg_0=4, var_257_arg_1=253, var_258=0, var_258_arg_0=47, var_258_arg_1=0, var_26=0, var_263=4, var_263_arg_0=4, var_264=1, var_264_arg_0=4, var_264_arg_1=4, var_265=1, var_265_arg_0=47, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=0, var_271_arg_0=4, var_271_arg_1=0, var_272=0, var_272_arg_0=47, var_272_arg_1=0, var_277=4, var_277_arg_0=4, var_278=1, var_278_arg_0=4, var_278_arg_1=4, var_279=1, var_279_arg_0=47, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=16, var_284=0, var_284_arg_0=0, var_285=0, var_285_arg_0=4, var_285_arg_1=0, var_286=0, var_286_arg_0=47, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=16, var_28_arg_2=0, var_291=0, var_291_arg_0=0, var_292=0, var_292_arg_0=4, var_292_arg_1=0, var_293=0, var_293_arg_0=47, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=4, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=47, var_300_arg_1=0, var_303=0, var_303_arg_0=0, var_304=0, var_304_arg_0=0, var_304_arg_1=0, var_309=1, var_309_arg_0=1, var_31=0, var_310=255, var_310_arg_0=254, var_310_arg_1=1, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=27, var_329_arg_1=47, var_32_arg_0=0, var_32_arg_1=0, var_33=16, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=16, var_33_arg_2=16, var_341=1, var_341_arg_0=0, var_341_arg_1=1, var_35=12, var_353=1, var_353_arg_0=47, var_353_arg_1=38, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=1, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=0, var_376_arg_0=1, var_376_arg_1=0, var_376_arg_2=0, var_377=0, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=0, var_379=1, var_379_arg_0=1, var_379_arg_1=1, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=1, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=1, var_382=16, var_382_arg_0=0, var_382_arg_1=1, var_382_arg_2=16, var_383=16, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=16, var_385=1, var_385_arg_0=1, var_385_arg_1=1, var_385_arg_2=16, var_386=1, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=1, var_388=0, var_388_arg_0=0, var_388_arg_1=1, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=16, var_391=1, var_391_arg_0=1, var_391_arg_1=1, var_391_arg_2=0, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=16, var_394_arg_0=0, var_394_arg_1=1, var_394_arg_2=16, var_395=16, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=16, var_397=16, var_397_arg_0=0, var_397_arg_1=1, var_397_arg_2=16, var_398=16, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=16, var_40=11, var_400=29, var_400_arg_0=0, var_400_arg_1=1, var_400_arg_2=29, var_401=29, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=29, var_403=0, var_403_arg_0=0, var_403_arg_1=1, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=1, var_406_arg_0=1, var_406_arg_1=1, var_406_arg_2=0, var_407=1, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=1, var_409=0, var_409_arg_0=0, var_409_arg_1=1, var_409_arg_2=0, var_41=0, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=1, var_412_arg_0=1, var_412_arg_1=1, var_412_arg_2=65535, var_413=1, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=1, var_415=1, var_415_arg_0=0, var_415_arg_1=1, var_415_arg_2=1, var_416=1, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=1, var_418=1, var_418_arg_0=1, var_418_arg_1=1, var_418_arg_2=1, var_419=1, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=1, var_41_arg_0=0, var_42=1, var_421=0, var_421_arg_0=0, var_421_arg_1=1, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=32, var_424_arg_0=0, var_424_arg_1=1, var_424_arg_2=32, var_425=32, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=32, var_427=1, var_427_arg_0=1, var_428=1, var_428_arg_0=0, var_428_arg_1=1, var_429=0, var_429_arg_0=0, var_42_arg_0=0, var_42_arg_1=0, var_43=0, var_430=1, var_430_arg_0=1, var_430_arg_1=0, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=1, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=23, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=1, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=255, var_446_arg_0=1, var_446_arg_1=255, var_446_arg_2=254, var_447=255, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=255, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=16, var_48_arg_0=1, var_48_arg_1=16, var_48_arg_2=0, var_50=9, var_51=39, var_51_arg_0=39, var_52=0, var_52_arg_0=0, var_52_arg_1=39, var_53=16, var_53_arg_0=0, var_53_arg_1=16, var_53_arg_2=16, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=29, var_58_arg_0=1, var_58_arg_1=29, var_58_arg_2=16, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=29, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=2, var_77_arg_0=2, var_78=0, var_78_arg_0=0, var_78_arg_1=2, var_79=0, var_79_arg_0=0, var_79_arg_1=65535, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=1, var_85_arg_2=0, var_87=2, var_88=1, var_88_arg_0=1, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=1, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=32, var_99_arg_2=0] [L127] SORT_13 var_106_arg_0 = var_105; [L128] var_106_arg_0 = var_106_arg_0 & mask_SORT_13 [L129] SORT_11 var_106 = var_106_arg_0; [L130] SORT_11 var_107_arg_0 = state_101; [L131] SORT_11 var_107_arg_1 = var_106; [L132] SORT_1 var_107 = var_107_arg_0 == var_107_arg_1; [L133] SORT_1 var_138_arg_0 = var_107; [L134] SORT_1 var_138 = ~var_138_arg_0; [L135] SORT_1 var_139_arg_0 = input_6; [L136] SORT_1 var_139 = ~var_139_arg_0; [L137] SORT_1 var_140_arg_0 = var_138; [L138] SORT_1 var_140_arg_1 = var_139; [L139] SORT_1 var_140 = var_140_arg_0 | var_140_arg_1; [L140] SORT_1 var_141_arg_0 = var_92; [L141] SORT_1 var_141 = ~var_141_arg_0; [L142] SORT_1 var_142_arg_0 = var_140; [L143] SORT_1 var_142_arg_1 = var_141; [L144] SORT_1 var_142 = var_142_arg_0 | var_142_arg_1; [L145] var_142 = var_142 & mask_SORT_1 [L146] SORT_1 constr_143_arg_0 = var_142; VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=26, input_6=40, input_7=0, input_8=1, input_9=65532, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, next_381_arg_1=1, next_384_arg_1=16, next_387_arg_1=1, next_390_arg_1=0, next_393_arg_1=1, next_396_arg_1=16, next_399_arg_1=16, next_402_arg_1=29, next_405_arg_1=0, next_408_arg_1=1, next_411_arg_1=0, next_414_arg_1=1, next_417_arg_1=1, next_420_arg_1=1, next_423_arg_1=0, next_426_arg_1=32, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=255, state_10=0, state_101=1, state_109=1, state_110=1, state_113=0, state_12=0, state_128=0, state_132=0, state_18=1, state_185=255, state_24=16, state_29=1, state_34=0, state_39=1, state_44=16, state_49=16, state_54=29, state_59=0, state_65=1, state_70=0, state_75=1, state_80=1, state_86=1, state_91=0, state_96=32, var_102=0, var_102_arg_0=0, var_103=6, var_103_arg_0=0, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=1, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=23, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=1, var_116_arg_0=1, var_117=1, var_117_arg_0=47, var_117_arg_1=1, var_118=1, var_118_arg_0=1, var_119=24, var_119_arg_0=23, var_119_arg_1=1, var_120=0, var_120_arg_0=0, var_121=24, var_121_arg_0=24, var_121_arg_1=0, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=24, var_124=0, var_124_arg_0=0, var_125=0, var_125_arg_0=0, var_126=0, var_126_arg_0=1, var_126_arg_1=0, var_127=20, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=20, var_130_arg_0=20, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=253, var_138_arg_0=1, var_139=21, var_139_arg_0=40, var_14=0, var_140=1, var_140_arg_0=253, var_140_arg_1=21, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=0, var_144_arg_0=6, var_145=2, var_145_arg_0=38, var_146=1, var_146_arg_0=0, var_146_arg_1=2, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=1, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=20, var_151_arg_0=1, var_151_arg_1=20, var_151_arg_2=20, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=20, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=46, var_160_arg_0=47, var_160_arg_1=38, var_161=1, var_161_arg_0=46, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=4, var_186_arg_0=254, var_187=1, var_187_arg_0=4, var_188=0, var_188_arg_0=1, var_189=0, var_189_arg_0=47, var_189_arg_1=0, var_194=3, var_194_arg_0=3, var_195=0, var_195_arg_0=4, var_195_arg_1=3, var_196=0, var_196_arg_0=47, var_196_arg_1=0, var_20=15, var_201=4, var_201_arg_0=4, var_202=1, var_202_arg_0=4, var_202_arg_1=4, var_203=1, var_203_arg_0=47, var_203_arg_1=1, var_208=28, var_208_arg_0=28, var_209=0, var_209_arg_0=4, var_209_arg_1=28, var_21=0, var_210=0, var_210_arg_0=47, var_210_arg_1=0, var_215=4, var_215_arg_0=4, var_216=1, var_216_arg_0=4, var_216_arg_1=4, var_217=1, var_217_arg_0=47, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=4, var_223_arg_1=0, var_224=0, var_224_arg_0=47, var_224_arg_1=0, var_229=4, var_229_arg_0=4, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=4, var_230_arg_1=4, var_231=1, var_231_arg_0=47, var_231_arg_1=1, var_236=0, var_236_arg_0=4, var_236_arg_1=16, var_237=0, var_237_arg_0=47, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=4, var_243_arg_1=1, var_244=0, var_244_arg_0=47, var_244_arg_1=0, var_249=4, var_249_arg_0=4, var_25=14, var_250=1, var_250_arg_0=4, var_250_arg_1=4, var_251=1, var_251_arg_0=47, var_251_arg_1=1, var_256=253, var_256_arg_0=253, var_257=0, var_257_arg_0=4, var_257_arg_1=253, var_258=0, var_258_arg_0=47, var_258_arg_1=0, var_26=0, var_263=4, var_263_arg_0=4, var_264=1, var_264_arg_0=4, var_264_arg_1=4, var_265=1, var_265_arg_0=47, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=0, var_271_arg_0=4, var_271_arg_1=0, var_272=0, var_272_arg_0=47, var_272_arg_1=0, var_277=4, var_277_arg_0=4, var_278=1, var_278_arg_0=4, var_278_arg_1=4, var_279=1, var_279_arg_0=47, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=16, var_284=0, var_284_arg_0=0, var_285=0, var_285_arg_0=4, var_285_arg_1=0, var_286=0, var_286_arg_0=47, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=16, var_28_arg_2=0, var_291=0, var_291_arg_0=0, var_292=0, var_292_arg_0=4, var_292_arg_1=0, var_293=0, var_293_arg_0=47, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=4, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=47, var_300_arg_1=0, var_303=0, var_303_arg_0=0, var_304=0, var_304_arg_0=0, var_304_arg_1=0, var_309=1, var_309_arg_0=1, var_31=0, var_310=255, var_310_arg_0=254, var_310_arg_1=1, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=27, var_329_arg_1=47, var_32_arg_0=0, var_32_arg_1=0, var_33=16, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=16, var_33_arg_2=16, var_341=1, var_341_arg_0=0, var_341_arg_1=1, var_35=12, var_353=1, var_353_arg_0=47, var_353_arg_1=38, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=1, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=0, var_376_arg_0=1, var_376_arg_1=0, var_376_arg_2=0, var_377=0, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=0, var_379=1, var_379_arg_0=1, var_379_arg_1=1, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=1, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=1, var_382=16, var_382_arg_0=0, var_382_arg_1=1, var_382_arg_2=16, var_383=16, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=16, var_385=1, var_385_arg_0=1, var_385_arg_1=1, var_385_arg_2=16, var_386=1, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=1, var_388=0, var_388_arg_0=0, var_388_arg_1=1, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=16, var_391=1, var_391_arg_0=1, var_391_arg_1=1, var_391_arg_2=0, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=16, var_394_arg_0=0, var_394_arg_1=1, var_394_arg_2=16, var_395=16, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=16, var_397=16, var_397_arg_0=0, var_397_arg_1=1, var_397_arg_2=16, var_398=16, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=16, var_40=11, var_400=29, var_400_arg_0=0, var_400_arg_1=1, var_400_arg_2=29, var_401=29, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=29, var_403=0, var_403_arg_0=0, var_403_arg_1=1, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=1, var_406_arg_0=1, var_406_arg_1=1, var_406_arg_2=0, var_407=1, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=1, var_409=0, var_409_arg_0=0, var_409_arg_1=1, var_409_arg_2=0, var_41=0, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=1, var_412_arg_0=1, var_412_arg_1=1, var_412_arg_2=65535, var_413=1, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=1, var_415=1, var_415_arg_0=0, var_415_arg_1=1, var_415_arg_2=1, var_416=1, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=1, var_418=1, var_418_arg_0=1, var_418_arg_1=1, var_418_arg_2=1, var_419=1, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=1, var_41_arg_0=0, var_42=1, var_421=0, var_421_arg_0=0, var_421_arg_1=1, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=32, var_424_arg_0=0, var_424_arg_1=1, var_424_arg_2=32, var_425=32, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=32, var_427=1, var_427_arg_0=1, var_428=1, var_428_arg_0=0, var_428_arg_1=1, var_429=0, var_429_arg_0=0, var_42_arg_0=0, var_42_arg_1=0, var_43=0, var_430=1, var_430_arg_0=1, var_430_arg_1=0, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=1, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=23, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=1, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=255, var_446_arg_0=1, var_446_arg_1=255, var_446_arg_2=254, var_447=255, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=255, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=16, var_48_arg_0=1, var_48_arg_1=16, var_48_arg_2=0, var_50=9, var_51=39, var_51_arg_0=39, var_52=0, var_52_arg_0=0, var_52_arg_1=39, var_53=16, var_53_arg_0=0, var_53_arg_1=16, var_53_arg_2=16, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=29, var_58_arg_0=1, var_58_arg_1=29, var_58_arg_2=16, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=29, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=2, var_77_arg_0=2, var_78=0, var_78_arg_0=0, var_78_arg_1=2, var_79=0, var_79_arg_0=0, var_79_arg_1=65535, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=1, var_85_arg_2=0, var_87=2, var_88=1, var_88_arg_0=1, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=1, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=32, var_99_arg_2=0] [L147] CALL assume_abort_if_not(constr_143_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L147] RET assume_abort_if_not(constr_143_arg_0) VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=26, input_6=40, input_7=0, input_8=1, input_9=65532, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, next_381_arg_1=1, next_384_arg_1=16, next_387_arg_1=1, next_390_arg_1=0, next_393_arg_1=1, next_396_arg_1=16, next_399_arg_1=16, next_402_arg_1=29, next_405_arg_1=0, next_408_arg_1=1, next_411_arg_1=0, next_414_arg_1=1, next_417_arg_1=1, next_420_arg_1=1, next_423_arg_1=0, next_426_arg_1=32, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=255, state_10=0, state_101=1, state_109=1, state_110=1, state_113=0, state_12=0, state_128=0, state_132=0, state_18=1, state_185=255, state_24=16, state_29=1, state_34=0, state_39=1, state_44=16, state_49=16, state_54=29, state_59=0, state_65=1, state_70=0, state_75=1, state_80=1, state_86=1, state_91=0, state_96=32, var_102=0, var_102_arg_0=0, var_103=6, var_103_arg_0=0, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=1, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=23, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=1, var_116_arg_0=1, var_117=1, var_117_arg_0=47, var_117_arg_1=1, var_118=1, var_118_arg_0=1, var_119=24, var_119_arg_0=23, var_119_arg_1=1, var_120=0, var_120_arg_0=0, var_121=24, var_121_arg_0=24, var_121_arg_1=0, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=24, var_124=0, var_124_arg_0=0, var_125=0, var_125_arg_0=0, var_126=0, var_126_arg_0=1, var_126_arg_1=0, var_127=20, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=20, var_130_arg_0=20, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=253, var_138_arg_0=1, var_139=21, var_139_arg_0=40, var_14=0, var_140=1, var_140_arg_0=253, var_140_arg_1=21, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=0, var_144_arg_0=6, var_145=2, var_145_arg_0=38, var_146=1, var_146_arg_0=0, var_146_arg_1=2, var_147=1, var_147_arg_0=1, var_148=1, var_148_arg_0=1, var_148_arg_1=1, var_14_arg_0=0, var_15=16, var_151=20, var_151_arg_0=1, var_151_arg_1=20, var_151_arg_2=20, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=20, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=46, var_160_arg_0=47, var_160_arg_1=38, var_161=1, var_161_arg_0=46, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=4, var_186_arg_0=254, var_187=1, var_187_arg_0=4, var_188=0, var_188_arg_0=1, var_189=0, var_189_arg_0=47, var_189_arg_1=0, var_194=3, var_194_arg_0=3, var_195=0, var_195_arg_0=4, var_195_arg_1=3, var_196=0, var_196_arg_0=47, var_196_arg_1=0, var_20=15, var_201=4, var_201_arg_0=4, var_202=1, var_202_arg_0=4, var_202_arg_1=4, var_203=1, var_203_arg_0=47, var_203_arg_1=1, var_208=28, var_208_arg_0=28, var_209=0, var_209_arg_0=4, var_209_arg_1=28, var_21=0, var_210=0, var_210_arg_0=47, var_210_arg_1=0, var_215=4, var_215_arg_0=4, var_216=1, var_216_arg_0=4, var_216_arg_1=4, var_217=1, var_217_arg_0=47, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=4, var_223_arg_1=0, var_224=0, var_224_arg_0=47, var_224_arg_1=0, var_229=4, var_229_arg_0=4, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=4, var_230_arg_1=4, var_231=1, var_231_arg_0=47, var_231_arg_1=1, var_236=0, var_236_arg_0=4, var_236_arg_1=16, var_237=0, var_237_arg_0=47, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=4, var_243_arg_1=1, var_244=0, var_244_arg_0=47, var_244_arg_1=0, var_249=4, var_249_arg_0=4, var_25=14, var_250=1, var_250_arg_0=4, var_250_arg_1=4, var_251=1, var_251_arg_0=47, var_251_arg_1=1, var_256=253, var_256_arg_0=253, var_257=0, var_257_arg_0=4, var_257_arg_1=253, var_258=0, var_258_arg_0=47, var_258_arg_1=0, var_26=0, var_263=4, var_263_arg_0=4, var_264=1, var_264_arg_0=4, var_264_arg_1=4, var_265=1, var_265_arg_0=47, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=0, var_271_arg_0=4, var_271_arg_1=0, var_272=0, var_272_arg_0=47, var_272_arg_1=0, var_277=4, var_277_arg_0=4, var_278=1, var_278_arg_0=4, var_278_arg_1=4, var_279=1, var_279_arg_0=47, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=16, var_284=0, var_284_arg_0=0, var_285=0, var_285_arg_0=4, var_285_arg_1=0, var_286=0, var_286_arg_0=47, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=16, var_28_arg_2=0, var_291=0, var_291_arg_0=0, var_292=0, var_292_arg_0=4, var_292_arg_1=0, var_293=0, var_293_arg_0=47, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=4, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=47, var_300_arg_1=0, var_303=0, var_303_arg_0=0, var_304=0, var_304_arg_0=0, var_304_arg_1=0, var_309=1, var_309_arg_0=1, var_31=0, var_310=255, var_310_arg_0=254, var_310_arg_1=1, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=27, var_329_arg_1=47, var_32_arg_0=0, var_32_arg_1=0, var_33=16, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=16, var_33_arg_2=16, var_341=1, var_341_arg_0=0, var_341_arg_1=1, var_35=12, var_353=1, var_353_arg_0=47, var_353_arg_1=38, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=1, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=0, var_376_arg_0=1, var_376_arg_1=0, var_376_arg_2=0, var_377=0, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=0, var_379=1, var_379_arg_0=1, var_379_arg_1=1, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=1, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=1, var_382=16, var_382_arg_0=0, var_382_arg_1=1, var_382_arg_2=16, var_383=16, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=16, var_385=1, var_385_arg_0=1, var_385_arg_1=1, var_385_arg_2=16, var_386=1, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=1, var_388=0, var_388_arg_0=0, var_388_arg_1=1, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=16, var_391=1, var_391_arg_0=1, var_391_arg_1=1, var_391_arg_2=0, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=16, var_394_arg_0=0, var_394_arg_1=1, var_394_arg_2=16, var_395=16, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=16, var_397=16, var_397_arg_0=0, var_397_arg_1=1, var_397_arg_2=16, var_398=16, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=16, var_40=11, var_400=29, var_400_arg_0=0, var_400_arg_1=1, var_400_arg_2=29, var_401=29, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=29, var_403=0, var_403_arg_0=0, var_403_arg_1=1, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=1, var_406_arg_0=1, var_406_arg_1=1, var_406_arg_2=0, var_407=1, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=1, var_409=0, var_409_arg_0=0, var_409_arg_1=1, var_409_arg_2=0, var_41=0, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=1, var_412_arg_0=1, var_412_arg_1=1, var_412_arg_2=65535, var_413=1, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=1, var_415=1, var_415_arg_0=0, var_415_arg_1=1, var_415_arg_2=1, var_416=1, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=1, var_418=1, var_418_arg_0=1, var_418_arg_1=1, var_418_arg_2=1, var_419=1, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=1, var_41_arg_0=0, var_42=1, var_421=0, var_421_arg_0=0, var_421_arg_1=1, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=32, var_424_arg_0=0, var_424_arg_1=1, var_424_arg_2=32, var_425=32, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=32, var_427=1, var_427_arg_0=1, var_428=1, var_428_arg_0=0, var_428_arg_1=1, var_429=0, var_429_arg_0=0, var_42_arg_0=0, var_42_arg_1=0, var_43=0, var_430=1, var_430_arg_0=1, var_430_arg_1=0, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=1, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=23, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=1, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=255, var_446_arg_0=1, var_446_arg_1=255, var_446_arg_2=254, var_447=255, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=255, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=16, var_48_arg_0=1, var_48_arg_1=16, var_48_arg_2=0, var_50=9, var_51=39, var_51_arg_0=39, var_52=0, var_52_arg_0=0, var_52_arg_1=39, var_53=16, var_53_arg_0=0, var_53_arg_1=16, var_53_arg_2=16, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=29, var_58_arg_0=1, var_58_arg_1=29, var_58_arg_2=16, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=29, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=2, var_77_arg_0=2, var_78=0, var_78_arg_0=0, var_78_arg_1=2, var_79=0, var_79_arg_0=0, var_79_arg_1=65535, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=1, var_85_arg_2=0, var_87=2, var_88=1, var_88_arg_0=1, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=1, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=32, var_99_arg_2=0] [L148] SORT_11 var_102_arg_0 = state_101; [L149] SORT_1 var_102 = var_102_arg_0 != 0; [L150] SORT_1 var_103_arg_0 = var_102; [L151] SORT_1 var_103 = ~var_103_arg_0; [L152] SORT_1 var_144_arg_0 = var_103; [L153] SORT_1 var_144 = ~var_144_arg_0; [L154] SORT_1 var_145_arg_0 = input_5; [L155] SORT_1 var_145 = ~var_145_arg_0; [L156] SORT_1 var_146_arg_0 = var_144; [L157] SORT_1 var_146_arg_1 = var_145; [L158] SORT_1 var_146 = var_146_arg_0 | var_146_arg_1; [L159] SORT_1 var_147_arg_0 = var_92; [L160] SORT_1 var_147 = ~var_147_arg_0; [L161] SORT_1 var_148_arg_0 = var_146; [L162] SORT_1 var_148_arg_1 = var_147; [L163] SORT_1 var_148 = var_148_arg_0 | var_148_arg_1; [L164] var_148 = var_148 & mask_SORT_1 [L165] SORT_1 constr_149_arg_0 = var_148; VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=26, input_6=40, input_7=0, input_8=1, input_9=65532, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, next_381_arg_1=1, next_384_arg_1=16, next_387_arg_1=1, next_390_arg_1=0, next_393_arg_1=1, next_396_arg_1=16, next_399_arg_1=16, next_402_arg_1=29, next_405_arg_1=0, next_408_arg_1=1, next_411_arg_1=0, next_414_arg_1=1, next_417_arg_1=1, next_420_arg_1=1, next_423_arg_1=0, next_426_arg_1=32, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=255, state_10=0, state_101=1, state_109=1, state_110=1, state_113=0, state_12=0, state_128=0, state_132=0, state_18=1, state_185=255, state_24=16, state_29=1, state_34=0, state_39=1, state_44=16, state_49=16, state_54=29, state_59=0, state_65=1, state_70=0, state_75=1, state_80=1, state_86=1, state_91=0, state_96=32, var_102=1, var_102_arg_0=1, var_103=2, var_103_arg_0=1, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=1, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=23, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=1, var_116_arg_0=1, var_117=1, var_117_arg_0=47, var_117_arg_1=1, var_118=1, var_118_arg_0=1, var_119=24, var_119_arg_0=23, var_119_arg_1=1, var_120=0, var_120_arg_0=0, var_121=24, var_121_arg_0=24, var_121_arg_1=0, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=24, var_124=0, var_124_arg_0=0, var_125=0, var_125_arg_0=0, var_126=0, var_126_arg_0=1, var_126_arg_1=0, var_127=20, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=20, var_130_arg_0=20, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=253, var_138_arg_0=1, var_139=21, var_139_arg_0=40, var_14=0, var_140=1, var_140_arg_0=253, var_140_arg_1=21, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=2, var_144_arg_0=2, var_145=0, var_145_arg_0=26, var_146=0, var_146_arg_0=2, var_146_arg_1=0, var_147=255, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=255, var_14_arg_0=0, var_15=16, var_151=20, var_151_arg_0=1, var_151_arg_1=20, var_151_arg_2=20, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=20, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=46, var_160_arg_0=47, var_160_arg_1=38, var_161=1, var_161_arg_0=46, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=4, var_186_arg_0=254, var_187=1, var_187_arg_0=4, var_188=0, var_188_arg_0=1, var_189=0, var_189_arg_0=47, var_189_arg_1=0, var_194=3, var_194_arg_0=3, var_195=0, var_195_arg_0=4, var_195_arg_1=3, var_196=0, var_196_arg_0=47, var_196_arg_1=0, var_20=15, var_201=4, var_201_arg_0=4, var_202=1, var_202_arg_0=4, var_202_arg_1=4, var_203=1, var_203_arg_0=47, var_203_arg_1=1, var_208=28, var_208_arg_0=28, var_209=0, var_209_arg_0=4, var_209_arg_1=28, var_21=0, var_210=0, var_210_arg_0=47, var_210_arg_1=0, var_215=4, var_215_arg_0=4, var_216=1, var_216_arg_0=4, var_216_arg_1=4, var_217=1, var_217_arg_0=47, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=4, var_223_arg_1=0, var_224=0, var_224_arg_0=47, var_224_arg_1=0, var_229=4, var_229_arg_0=4, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=4, var_230_arg_1=4, var_231=1, var_231_arg_0=47, var_231_arg_1=1, var_236=0, var_236_arg_0=4, var_236_arg_1=16, var_237=0, var_237_arg_0=47, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=4, var_243_arg_1=1, var_244=0, var_244_arg_0=47, var_244_arg_1=0, var_249=4, var_249_arg_0=4, var_25=14, var_250=1, var_250_arg_0=4, var_250_arg_1=4, var_251=1, var_251_arg_0=47, var_251_arg_1=1, var_256=253, var_256_arg_0=253, var_257=0, var_257_arg_0=4, var_257_arg_1=253, var_258=0, var_258_arg_0=47, var_258_arg_1=0, var_26=0, var_263=4, var_263_arg_0=4, var_264=1, var_264_arg_0=4, var_264_arg_1=4, var_265=1, var_265_arg_0=47, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=0, var_271_arg_0=4, var_271_arg_1=0, var_272=0, var_272_arg_0=47, var_272_arg_1=0, var_277=4, var_277_arg_0=4, var_278=1, var_278_arg_0=4, var_278_arg_1=4, var_279=1, var_279_arg_0=47, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=16, var_284=0, var_284_arg_0=0, var_285=0, var_285_arg_0=4, var_285_arg_1=0, var_286=0, var_286_arg_0=47, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=16, var_28_arg_2=0, var_291=0, var_291_arg_0=0, var_292=0, var_292_arg_0=4, var_292_arg_1=0, var_293=0, var_293_arg_0=47, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=4, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=47, var_300_arg_1=0, var_303=0, var_303_arg_0=0, var_304=0, var_304_arg_0=0, var_304_arg_1=0, var_309=1, var_309_arg_0=1, var_31=0, var_310=255, var_310_arg_0=254, var_310_arg_1=1, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=27, var_329_arg_1=47, var_32_arg_0=0, var_32_arg_1=0, var_33=16, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=16, var_33_arg_2=16, var_341=1, var_341_arg_0=0, var_341_arg_1=1, var_35=12, var_353=1, var_353_arg_0=47, var_353_arg_1=38, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=1, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=0, var_376_arg_0=1, var_376_arg_1=0, var_376_arg_2=0, var_377=0, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=0, var_379=1, var_379_arg_0=1, var_379_arg_1=1, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=1, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=1, var_382=16, var_382_arg_0=0, var_382_arg_1=1, var_382_arg_2=16, var_383=16, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=16, var_385=1, var_385_arg_0=1, var_385_arg_1=1, var_385_arg_2=16, var_386=1, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=1, var_388=0, var_388_arg_0=0, var_388_arg_1=1, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=16, var_391=1, var_391_arg_0=1, var_391_arg_1=1, var_391_arg_2=0, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=16, var_394_arg_0=0, var_394_arg_1=1, var_394_arg_2=16, var_395=16, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=16, var_397=16, var_397_arg_0=0, var_397_arg_1=1, var_397_arg_2=16, var_398=16, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=16, var_40=11, var_400=29, var_400_arg_0=0, var_400_arg_1=1, var_400_arg_2=29, var_401=29, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=29, var_403=0, var_403_arg_0=0, var_403_arg_1=1, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=1, var_406_arg_0=1, var_406_arg_1=1, var_406_arg_2=0, var_407=1, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=1, var_409=0, var_409_arg_0=0, var_409_arg_1=1, var_409_arg_2=0, var_41=0, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=1, var_412_arg_0=1, var_412_arg_1=1, var_412_arg_2=65535, var_413=1, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=1, var_415=1, var_415_arg_0=0, var_415_arg_1=1, var_415_arg_2=1, var_416=1, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=1, var_418=1, var_418_arg_0=1, var_418_arg_1=1, var_418_arg_2=1, var_419=1, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=1, var_41_arg_0=0, var_42=1, var_421=0, var_421_arg_0=0, var_421_arg_1=1, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=32, var_424_arg_0=0, var_424_arg_1=1, var_424_arg_2=32, var_425=32, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=32, var_427=1, var_427_arg_0=1, var_428=1, var_428_arg_0=0, var_428_arg_1=1, var_429=0, var_429_arg_0=0, var_42_arg_0=0, var_42_arg_1=0, var_43=0, var_430=1, var_430_arg_0=1, var_430_arg_1=0, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=1, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=23, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=1, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=255, var_446_arg_0=1, var_446_arg_1=255, var_446_arg_2=254, var_447=255, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=255, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=16, var_48_arg_0=1, var_48_arg_1=16, var_48_arg_2=0, var_50=9, var_51=39, var_51_arg_0=39, var_52=0, var_52_arg_0=0, var_52_arg_1=39, var_53=16, var_53_arg_0=0, var_53_arg_1=16, var_53_arg_2=16, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=29, var_58_arg_0=1, var_58_arg_1=29, var_58_arg_2=16, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=29, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=2, var_77_arg_0=2, var_78=0, var_78_arg_0=0, var_78_arg_1=2, var_79=0, var_79_arg_0=0, var_79_arg_1=65535, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=1, var_85_arg_2=0, var_87=2, var_88=1, var_88_arg_0=1, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=1, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=32, var_99_arg_2=0] [L166] CALL assume_abort_if_not(constr_149_arg_0) VAL [\old(cond)=1] [L21] COND FALSE !(!cond) [L166] RET assume_abort_if_not(constr_149_arg_0) VAL [bad_156_arg_0=0, constr_137_arg_0=1, constr_143_arg_0=1, constr_149_arg_0=1, init_133_arg_1=1, input_150=1, input_2=4, input_4=5, input_5=26, input_6=40, input_7=0, input_8=1, input_9=65532, mask_SORT_1=1, mask_SORT_11=63, mask_SORT_13=31, mask_SORT_19=15, mask_SORT_3=65535, mask_SORT_60=7, mask_SORT_81=3, msb_SORT_1=1, msb_SORT_11=32, msb_SORT_13=16, msb_SORT_19=8, msb_SORT_3=32768, msb_SORT_60=4, msb_SORT_81=2, next_375_arg_1=0, next_378_arg_1=0, next_381_arg_1=1, next_384_arg_1=16, next_387_arg_1=1, next_390_arg_1=0, next_393_arg_1=1, next_396_arg_1=16, next_399_arg_1=16, next_402_arg_1=29, next_405_arg_1=0, next_408_arg_1=1, next_411_arg_1=0, next_414_arg_1=1, next_417_arg_1=1, next_420_arg_1=1, next_423_arg_1=0, next_426_arg_1=32, next_432_arg_1=1, next_435_arg_1=1, next_438_arg_1=1, next_441_arg_1=0, next_444_arg_1=0, next_445_arg_1=0, next_448_arg_1=255, state_10=0, state_101=1, state_109=1, state_110=1, state_113=0, state_12=0, state_128=0, state_132=0, state_18=1, state_185=255, state_24=16, state_29=1, state_34=0, state_39=1, state_44=16, state_49=16, state_54=29, state_59=0, state_65=1, state_70=0, state_75=1, state_80=1, state_86=1, state_91=0, state_96=32, var_102=1, var_102_arg_0=1, var_103=2, var_103_arg_0=1, var_105=17, var_106=1, var_106_arg_0=1, var_107=1, var_107_arg_0=1, var_107_arg_1=1, var_111=1, var_111_arg_0=1, var_112=1, var_112_arg_0=1, var_112_arg_1=1, var_114=1, var_114_arg_0=23, var_115=1, var_115_arg_0=1, var_115_arg_1=1, var_116=1, var_116_arg_0=1, var_117=1, var_117_arg_0=47, var_117_arg_1=1, var_118=1, var_118_arg_0=1, var_119=24, var_119_arg_0=23, var_119_arg_1=1, var_120=0, var_120_arg_0=0, var_121=24, var_121_arg_0=24, var_121_arg_1=0, var_122=0, var_123=0, var_123_arg_0=0, var_123_arg_1=0, var_123_arg_2=24, var_124=0, var_124_arg_0=0, var_125=0, var_125_arg_0=0, var_126=0, var_126_arg_0=1, var_126_arg_1=0, var_127=20, var_127_arg_0=0, var_129=1, var_129_arg_0=0, var_129_arg_1=0, var_130=20, var_130_arg_0=20, var_130_arg_1=1, var_134=1, var_134_arg_0=0, var_134_arg_1=0, var_135=2, var_135_arg_0=1, var_136=1, var_136_arg_0=1, var_136_arg_1=2, var_138=253, var_138_arg_0=1, var_139=21, var_139_arg_0=40, var_14=0, var_140=1, var_140_arg_0=253, var_140_arg_1=21, var_141=255, var_141_arg_0=1, var_142=1, var_142_arg_0=1, var_142_arg_1=255, var_144=2, var_144_arg_0=2, var_145=0, var_145_arg_0=26, var_146=0, var_146_arg_0=2, var_146_arg_1=0, var_147=255, var_147_arg_0=1, var_148=1, var_148_arg_0=0, var_148_arg_1=255, var_14_arg_0=0, var_15=16, var_151=20, var_151_arg_0=1, var_151_arg_1=20, var_151_arg_2=20, var_152=0, var_153=0, var_153_arg_0=1, var_153_arg_1=0, var_153_arg_2=1, var_154=2, var_154_arg_0=20, var_155=0, var_155_arg_0=0, var_155_arg_1=2, var_16=0, var_160=46, var_160_arg_0=47, var_160_arg_1=38, var_161=1, var_161_arg_0=46, var_161_arg_1=0, var_16_arg_0=0, var_16_arg_1=16, var_17=0, var_17_arg_0=0, var_17_arg_1=0, var_17_arg_2=0, var_186=4, var_186_arg_0=254, var_187=1, var_187_arg_0=4, var_188=0, var_188_arg_0=1, var_189=0, var_189_arg_0=47, var_189_arg_1=0, var_194=3, var_194_arg_0=3, var_195=0, var_195_arg_0=4, var_195_arg_1=3, var_196=0, var_196_arg_0=47, var_196_arg_1=0, var_20=15, var_201=4, var_201_arg_0=4, var_202=1, var_202_arg_0=4, var_202_arg_1=4, var_203=1, var_203_arg_0=47, var_203_arg_1=1, var_208=28, var_208_arg_0=28, var_209=0, var_209_arg_0=4, var_209_arg_1=28, var_21=0, var_210=0, var_210_arg_0=47, var_210_arg_1=0, var_215=4, var_215_arg_0=4, var_216=1, var_216_arg_0=4, var_216_arg_1=4, var_217=1, var_217_arg_0=47, var_217_arg_1=1, var_21_arg_0=0, var_22=1, var_222=0, var_222_arg_0=0, var_223=0, var_223_arg_0=4, var_223_arg_1=0, var_224=0, var_224_arg_0=47, var_224_arg_1=0, var_229=4, var_229_arg_0=4, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_230=1, var_230_arg_0=4, var_230_arg_1=4, var_231=1, var_231_arg_0=47, var_231_arg_1=1, var_236=0, var_236_arg_0=4, var_236_arg_1=16, var_237=0, var_237_arg_0=47, var_237_arg_1=0, var_23_arg_0=1, var_23_arg_1=0, var_23_arg_2=0, var_242=1, var_242_arg_0=1, var_243=0, var_243_arg_0=4, var_243_arg_1=1, var_244=0, var_244_arg_0=47, var_244_arg_1=0, var_249=4, var_249_arg_0=4, var_25=14, var_250=1, var_250_arg_0=4, var_250_arg_1=4, var_251=1, var_251_arg_0=47, var_251_arg_1=1, var_256=253, var_256_arg_0=253, var_257=0, var_257_arg_0=4, var_257_arg_1=253, var_258=0, var_258_arg_0=47, var_258_arg_1=0, var_26=0, var_263=4, var_263_arg_0=4, var_264=1, var_264_arg_0=4, var_264_arg_1=4, var_265=1, var_265_arg_0=47, var_265_arg_1=1, var_26_arg_0=0, var_27=1, var_270=0, var_270_arg_0=0, var_271=0, var_271_arg_0=4, var_271_arg_1=0, var_272=0, var_272_arg_0=47, var_272_arg_1=0, var_277=4, var_277_arg_0=4, var_278=1, var_278_arg_0=4, var_278_arg_1=4, var_279=1, var_279_arg_0=47, var_279_arg_1=1, var_27_arg_0=0, var_27_arg_1=0, var_28=16, var_284=0, var_284_arg_0=0, var_285=0, var_285_arg_0=4, var_285_arg_1=0, var_286=0, var_286_arg_0=47, var_286_arg_1=0, var_28_arg_0=1, var_28_arg_1=16, var_28_arg_2=0, var_291=0, var_291_arg_0=0, var_292=0, var_292_arg_0=4, var_292_arg_1=0, var_293=0, var_293_arg_0=47, var_293_arg_1=0, var_298=0, var_298_arg_0=0, var_299=0, var_299_arg_0=4, var_299_arg_1=0, var_30=13, var_300=0, var_300_arg_0=47, var_300_arg_1=0, var_303=0, var_303_arg_0=0, var_304=0, var_304_arg_0=0, var_304_arg_1=0, var_309=1, var_309_arg_0=1, var_31=0, var_310=255, var_310_arg_0=254, var_310_arg_1=1, var_31_arg_0=0, var_32=1, var_329=0, var_329_arg_0=27, var_329_arg_1=47, var_32_arg_0=0, var_32_arg_1=0, var_33=16, var_330=1, var_330_arg_0=1, var_330_arg_1=0, var_333=1, var_333_arg_0=1, var_338=0, var_338_arg_0=0, var_338_arg_1=1, var_33_arg_0=1, var_33_arg_1=16, var_33_arg_2=16, var_341=1, var_341_arg_0=0, var_341_arg_1=1, var_35=12, var_353=1, var_353_arg_0=47, var_353_arg_1=38, var_354=1, var_354_arg_0=1, var_354_arg_1=0, var_355=1, var_355_arg_0=1, var_355_arg_1=1, var_36=0, var_36_arg_0=0, var_37=1, var_372=0, var_372_arg_0=0, var_372_arg_1=1, var_372_arg_2=0, var_373=0, var_374=0, var_374_arg_0=0, var_374_arg_1=0, var_374_arg_2=0, var_376=0, var_376_arg_0=1, var_376_arg_1=0, var_376_arg_2=0, var_377=0, var_377_arg_0=0, var_377_arg_1=0, var_377_arg_2=0, var_379=1, var_379_arg_0=1, var_379_arg_1=1, var_379_arg_2=0, var_37_arg_0=0, var_37_arg_1=0, var_38=0, var_380=1, var_380_arg_0=0, var_380_arg_1=0, var_380_arg_2=1, var_382=16, var_382_arg_0=0, var_382_arg_1=1, var_382_arg_2=16, var_383=16, var_383_arg_0=0, var_383_arg_1=0, var_383_arg_2=16, var_385=1, var_385_arg_0=1, var_385_arg_1=1, var_385_arg_2=16, var_386=1, var_386_arg_0=0, var_386_arg_1=0, var_386_arg_2=1, var_388=0, var_388_arg_0=0, var_388_arg_1=1, var_388_arg_2=0, var_389=0, var_389_arg_0=0, var_389_arg_1=0, var_389_arg_2=0, var_38_arg_0=1, var_38_arg_1=0, var_38_arg_2=16, var_391=1, var_391_arg_0=1, var_391_arg_1=1, var_391_arg_2=0, var_392=1, var_392_arg_0=0, var_392_arg_1=0, var_392_arg_2=1, var_394=16, var_394_arg_0=0, var_394_arg_1=1, var_394_arg_2=16, var_395=16, var_395_arg_0=0, var_395_arg_1=0, var_395_arg_2=16, var_397=16, var_397_arg_0=0, var_397_arg_1=1, var_397_arg_2=16, var_398=16, var_398_arg_0=0, var_398_arg_1=0, var_398_arg_2=16, var_40=11, var_400=29, var_400_arg_0=0, var_400_arg_1=1, var_400_arg_2=29, var_401=29, var_401_arg_0=0, var_401_arg_1=0, var_401_arg_2=29, var_403=0, var_403_arg_0=0, var_403_arg_1=1, var_403_arg_2=0, var_404=0, var_404_arg_0=0, var_404_arg_1=0, var_404_arg_2=0, var_406=1, var_406_arg_0=1, var_406_arg_1=1, var_406_arg_2=0, var_407=1, var_407_arg_0=0, var_407_arg_1=0, var_407_arg_2=1, var_409=0, var_409_arg_0=0, var_409_arg_1=1, var_409_arg_2=0, var_41=0, var_410=0, var_410_arg_0=0, var_410_arg_1=0, var_410_arg_2=0, var_412=1, var_412_arg_0=1, var_412_arg_1=1, var_412_arg_2=65535, var_413=1, var_413_arg_0=0, var_413_arg_1=0, var_413_arg_2=1, var_415=1, var_415_arg_0=0, var_415_arg_1=1, var_415_arg_2=1, var_416=1, var_416_arg_0=0, var_416_arg_1=0, var_416_arg_2=1, var_418=1, var_418_arg_0=1, var_418_arg_1=1, var_418_arg_2=1, var_419=1, var_419_arg_0=0, var_419_arg_1=0, var_419_arg_2=1, var_41_arg_0=0, var_42=1, var_421=0, var_421_arg_0=0, var_421_arg_1=1, var_421_arg_2=0, var_422=0, var_422_arg_0=0, var_422_arg_1=0, var_422_arg_2=0, var_424=32, var_424_arg_0=0, var_424_arg_1=1, var_424_arg_2=32, var_425=32, var_425_arg_0=0, var_425_arg_1=0, var_425_arg_2=32, var_427=1, var_427_arg_0=1, var_428=1, var_428_arg_0=0, var_428_arg_1=1, var_429=0, var_429_arg_0=0, var_42_arg_0=0, var_42_arg_1=0, var_43=0, var_430=1, var_430_arg_0=1, var_430_arg_1=0, var_431=1, var_431_arg_0=0, var_431_arg_1=0, var_431_arg_2=1, var_433=1, var_433_arg_0=1, var_433_arg_1=1, var_433_arg_2=1, var_434=1, var_434_arg_0=0, var_434_arg_1=0, var_434_arg_2=1, var_436=1, var_436_arg_0=1, var_436_arg_1=1, var_436_arg_2=1, var_437=1, var_437_arg_0=0, var_437_arg_1=0, var_437_arg_2=1, var_439=0, var_439_arg_0=1, var_439_arg_1=0, var_439_arg_2=23, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_440=0, var_440_arg_0=0, var_440_arg_1=0, var_440_arg_2=0, var_442=0, var_442_arg_0=0, var_442_arg_1=1, var_442_arg_2=0, var_443=0, var_443_arg_0=0, var_443_arg_1=0, var_443_arg_2=0, var_446=255, var_446_arg_0=1, var_446_arg_1=255, var_446_arg_2=254, var_447=255, var_447_arg_0=0, var_447_arg_1=0, var_447_arg_2=255, var_45=10, var_46=0, var_46_arg_0=0, var_47=1, var_47_arg_0=0, var_47_arg_1=0, var_48=16, var_48_arg_0=1, var_48_arg_1=16, var_48_arg_2=0, var_50=9, var_51=39, var_51_arg_0=39, var_52=0, var_52_arg_0=0, var_52_arg_1=39, var_53=16, var_53_arg_0=0, var_53_arg_1=16, var_53_arg_2=16, var_55=8, var_56=0, var_56_arg_0=0, var_57=1, var_57_arg_0=0, var_57_arg_1=0, var_58=29, var_58_arg_0=1, var_58_arg_1=29, var_58_arg_2=16, var_61=7, var_62=0, var_62_arg_0=0, var_63=1, var_63_arg_0=0, var_63_arg_1=0, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_64_arg_2=29, var_66=6, var_67=0, var_67_arg_0=0, var_68=1, var_68_arg_0=0, var_68_arg_1=0, var_69=0, var_69_arg_0=1, var_69_arg_1=0, var_69_arg_2=0, var_71=5, var_72=1, var_72_arg_0=1, var_73=0, var_73_arg_0=0, var_73_arg_1=1, var_74=0, var_74_arg_0=0, var_74_arg_1=0, var_74_arg_2=0, var_76=4, var_77=2, var_77_arg_0=2, var_78=0, var_78_arg_0=0, var_78_arg_1=2, var_79=0, var_79_arg_0=0, var_79_arg_1=65535, var_79_arg_2=0, var_82=3, var_83=3, var_83_arg_0=3, var_84=0, var_84_arg_0=0, var_84_arg_1=3, var_85=0, var_85_arg_0=0, var_85_arg_1=1, var_85_arg_2=0, var_87=2, var_88=1, var_88_arg_0=1, var_89=0, var_89_arg_0=0, var_89_arg_1=1, var_90=0, var_90_arg_0=0, var_90_arg_1=1, var_90_arg_2=0, var_92=1, var_93=1, var_93_arg_0=1, var_94=0, var_94_arg_0=0, var_94_arg_1=1, var_95=0, var_95_arg_0=0, var_95_arg_1=0, var_95_arg_2=0, var_97=0, var_97_arg_0=0, var_98=0, var_98_arg_0=0, var_99=0, var_99_arg_0=0, var_99_arg_1=32, var_99_arg_2=0] [L168] SORT_1 var_153_arg_0 = state_132; [L169] SORT_1 var_153_arg_1 = var_152; [L170] SORT_1 var_153_arg_2 = var_92; [L171] EXPR var_153_arg_0 ? var_153_arg_1 : var_153_arg_2 [L171] SORT_1 var_153 = var_153_arg_0 ? var_153_arg_1 : var_153_arg_2; [L172] SORT_1 var_111_arg_0 = state_110; [L173] SORT_1 var_111 = ~var_111_arg_0; [L174] SORT_1 var_112_arg_0 = state_109; [L175] SORT_1 var_112_arg_1 = var_111; [L176] SORT_1 var_112 = var_112_arg_0 & var_112_arg_1; [L177] SORT_11 var_114_arg_0 = state_113; [L178] SORT_1 var_114 = var_114_arg_0 != 0; [L179] SORT_1 var_115_arg_0 = var_112; [L180] SORT_1 var_115_arg_1 = var_114; [L181] SORT_1 var_115 = var_115_arg_0 & var_115_arg_1; [L182] SORT_1 var_116_arg_0 = state_109; [L183] SORT_1 var_116 = ~var_116_arg_0; [L184] SORT_1 var_117_arg_0 = input_6; [L185] SORT_1 var_117_arg_1 = var_116; [L186] SORT_1 var_117 = var_117_arg_0 & var_117_arg_1; [L187] SORT_1 var_118_arg_0 = var_117; [L188] var_118_arg_0 = var_118_arg_0 & mask_SORT_1 [L189] SORT_11 var_118 = var_118_arg_0; [L190] SORT_11 var_119_arg_0 = state_113; [L191] SORT_11 var_119_arg_1 = var_118; [L192] SORT_11 var_119 = var_119_arg_0 + var_119_arg_1; [L193] SORT_1 var_120_arg_0 = input_5; [L194] var_120_arg_0 = var_120_arg_0 & mask_SORT_1 [L195] SORT_11 var_120 = var_120_arg_0; [L196] SORT_11 var_121_arg_0 = var_119; [L197] SORT_11 var_121_arg_1 = var_120; [L198] SORT_11 var_121 = var_121_arg_0 - var_121_arg_1; [L199] SORT_1 var_123_arg_0 = input_7; [L200] SORT_11 var_123_arg_1 = var_122; [L201] SORT_11 var_123_arg_2 = var_121; [L202] EXPR var_123_arg_0 ? var_123_arg_1 : var_123_arg_2 [L202] SORT_11 var_123 = var_123_arg_0 ? var_123_arg_1 : var_123_arg_2; [L203] var_123 = var_123 & mask_SORT_11 [L204] SORT_11 var_124_arg_0 = var_123; [L205] SORT_1 var_124 = var_124_arg_0 != 0; [L206] SORT_1 var_125_arg_0 = var_124; [L207] SORT_1 var_125 = ~var_125_arg_0; [L208] SORT_1 var_126_arg_0 = var_115; [L209] SORT_1 var_126_arg_1 = var_125; [L210] SORT_1 var_126 = var_126_arg_0 & var_126_arg_1; [L211] SORT_1 var_127_arg_0 = var_126; [L212] SORT_1 var_127 = ~var_127_arg_0; [L213] SORT_11 var_14_arg_0 = state_12; [L214] SORT_13 var_14 = var_14_arg_0 >> 0; [L215] var_14 = var_14 & mask_SORT_13 [L216] SORT_13 var_97_arg_0 = var_14; [L217] SORT_1 var_97 = var_97_arg_0 != 0; [L218] SORT_1 var_98_arg_0 = var_97; [L219] SORT_1 var_98 = ~var_98_arg_0; [L220] var_98 = var_98 & mask_SORT_1 [L221] SORT_1 var_93_arg_0 = var_92; [L222] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L223] SORT_13 var_93 = var_93_arg_0; [L224] SORT_13 var_94_arg_0 = var_14; [L225] SORT_13 var_94_arg_1 = var_93; [L226] SORT_1 var_94 = var_94_arg_0 == var_94_arg_1; [L227] SORT_81 var_88_arg_0 = var_87; [L228] var_88_arg_0 = var_88_arg_0 & mask_SORT_81 [L229] SORT_13 var_88 = var_88_arg_0; [L230] SORT_13 var_89_arg_0 = var_14; [L231] SORT_13 var_89_arg_1 = var_88; [L232] SORT_1 var_89 = var_89_arg_0 == var_89_arg_1; [L233] SORT_81 var_83_arg_0 = var_82; [L234] var_83_arg_0 = var_83_arg_0 & mask_SORT_81 [L235] SORT_13 var_83 = var_83_arg_0; [L236] SORT_13 var_84_arg_0 = var_14; [L237] SORT_13 var_84_arg_1 = var_83; [L238] SORT_1 var_84 = var_84_arg_0 == var_84_arg_1; [L239] SORT_60 var_77_arg_0 = var_76; [L240] var_77_arg_0 = var_77_arg_0 & mask_SORT_60 [L241] SORT_13 var_77 = var_77_arg_0; [L242] SORT_13 var_78_arg_0 = var_14; [L243] SORT_13 var_78_arg_1 = var_77; [L244] SORT_1 var_78 = var_78_arg_0 == var_78_arg_1; [L245] SORT_60 var_72_arg_0 = var_71; [L246] var_72_arg_0 = var_72_arg_0 & mask_SORT_60 [L247] SORT_13 var_72 = var_72_arg_0; [L248] SORT_13 var_73_arg_0 = var_14; [L249] SORT_13 var_73_arg_1 = var_72; [L250] SORT_1 var_73 = var_73_arg_0 == var_73_arg_1; [L251] SORT_60 var_67_arg_0 = var_66; [L252] var_67_arg_0 = var_67_arg_0 & mask_SORT_60 [L253] SORT_13 var_67 = var_67_arg_0; [L254] SORT_13 var_68_arg_0 = var_14; [L255] SORT_13 var_68_arg_1 = var_67; [L256] SORT_1 var_68 = var_68_arg_0 == var_68_arg_1; [L257] SORT_60 var_62_arg_0 = var_61; [L258] var_62_arg_0 = var_62_arg_0 & mask_SORT_60 [L259] SORT_13 var_62 = var_62_arg_0; [L260] SORT_13 var_63_arg_0 = var_14; [L261] SORT_13 var_63_arg_1 = var_62; [L262] SORT_1 var_63 = var_63_arg_0 == var_63_arg_1; [L263] SORT_19 var_56_arg_0 = var_55; [L264] var_56_arg_0 = var_56_arg_0 & mask_SORT_19 [L265] SORT_13 var_56 = var_56_arg_0; [L266] SORT_13 var_57_arg_0 = var_14; [L267] SORT_13 var_57_arg_1 = var_56; [L268] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L269] SORT_19 var_51_arg_0 = var_50; [L270] var_51_arg_0 = var_51_arg_0 & mask_SORT_19 [L271] SORT_13 var_51 = var_51_arg_0; [L272] SORT_13 var_52_arg_0 = var_14; [L273] SORT_13 var_52_arg_1 = var_51; [L274] SORT_1 var_52 = var_52_arg_0 == var_52_arg_1; [L275] SORT_19 var_46_arg_0 = var_45; [L276] var_46_arg_0 = var_46_arg_0 & mask_SORT_19 [L277] SORT_13 var_46 = var_46_arg_0; [L278] SORT_13 var_47_arg_0 = var_14; [L279] SORT_13 var_47_arg_1 = var_46; [L280] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L281] SORT_19 var_41_arg_0 = var_40; [L282] var_41_arg_0 = var_41_arg_0 & mask_SORT_19 [L283] SORT_13 var_41 = var_41_arg_0; [L284] SORT_13 var_42_arg_0 = var_14; [L285] SORT_13 var_42_arg_1 = var_41; [L286] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L287] SORT_19 var_36_arg_0 = var_35; [L288] var_36_arg_0 = var_36_arg_0 & mask_SORT_19 [L289] SORT_13 var_36 = var_36_arg_0; [L290] SORT_13 var_37_arg_0 = var_14; [L291] SORT_13 var_37_arg_1 = var_36; [L292] SORT_1 var_37 = var_37_arg_0 == var_37_arg_1; [L293] SORT_19 var_31_arg_0 = var_30; [L294] var_31_arg_0 = var_31_arg_0 & mask_SORT_19 [L295] SORT_13 var_31 = var_31_arg_0; [L296] SORT_13 var_32_arg_0 = var_14; [L297] SORT_13 var_32_arg_1 = var_31; [L298] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L299] SORT_19 var_26_arg_0 = var_25; [L300] var_26_arg_0 = var_26_arg_0 & mask_SORT_19 [L301] SORT_13 var_26 = var_26_arg_0; [L302] SORT_13 var_27_arg_0 = var_14; [L303] SORT_13 var_27_arg_1 = var_26; [L304] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L305] SORT_19 var_21_arg_0 = var_20; [L306] var_21_arg_0 = var_21_arg_0 & mask_SORT_19 [L307] SORT_13 var_21 = var_21_arg_0; [L308] SORT_13 var_22_arg_0 = var_14; [L309] SORT_13 var_22_arg_1 = var_21; [L310] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L311] SORT_13 var_16_arg_0 = var_14; [L312] SORT_13 var_16_arg_1 = var_15; [L313] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L314] SORT_1 var_17_arg_0 = var_16; [L315] SORT_3 var_17_arg_1 = state_10; [L316] SORT_3 var_17_arg_2 = input_9; [L317] EXPR var_17_arg_0 ? var_17_arg_1 : var_17_arg_2 [L317] SORT_3 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L318] SORT_1 var_23_arg_0 = var_22; [L319] SORT_3 var_23_arg_1 = state_18; [L320] SORT_3 var_23_arg_2 = var_17; [L321] EXPR var_23_arg_0 ? var_23_arg_1 : var_23_arg_2 [L321] SORT_3 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L322] SORT_1 var_28_arg_0 = var_27; [L323] SORT_3 var_28_arg_1 = state_24; [L324] SORT_3 var_28_arg_2 = var_23; [L325] EXPR var_28_arg_0 ? var_28_arg_1 : var_28_arg_2 [L325] SORT_3 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L326] SORT_1 var_33_arg_0 = var_32; [L327] SORT_3 var_33_arg_1 = state_29; [L328] SORT_3 var_33_arg_2 = var_28; [L329] EXPR var_33_arg_0 ? var_33_arg_1 : var_33_arg_2 [L329] SORT_3 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L330] SORT_1 var_38_arg_0 = var_37; [L331] SORT_3 var_38_arg_1 = state_34; [L332] SORT_3 var_38_arg_2 = var_33; [L333] EXPR var_38_arg_0 ? var_38_arg_1 : var_38_arg_2 [L333] SORT_3 var_38 = var_38_arg_0 ? var_38_arg_1 : var_38_arg_2; [L334] SORT_1 var_43_arg_0 = var_42; [L335] SORT_3 var_43_arg_1 = state_39; [L336] SORT_3 var_43_arg_2 = var_38; [L337] EXPR var_43_arg_0 ? var_43_arg_1 : var_43_arg_2 [L337] SORT_3 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L338] SORT_1 var_48_arg_0 = var_47; [L339] SORT_3 var_48_arg_1 = state_44; [L340] SORT_3 var_48_arg_2 = var_43; [L341] EXPR var_48_arg_0 ? var_48_arg_1 : var_48_arg_2 [L341] SORT_3 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L342] SORT_1 var_53_arg_0 = var_52; [L343] SORT_3 var_53_arg_1 = state_49; [L344] SORT_3 var_53_arg_2 = var_48; [L345] EXPR var_53_arg_0 ? var_53_arg_1 : var_53_arg_2 [L345] SORT_3 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L346] SORT_1 var_58_arg_0 = var_57; [L347] SORT_3 var_58_arg_1 = state_54; [L348] SORT_3 var_58_arg_2 = var_53; [L349] EXPR var_58_arg_0 ? var_58_arg_1 : var_58_arg_2 [L349] SORT_3 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L350] SORT_1 var_64_arg_0 = var_63; [L351] SORT_3 var_64_arg_1 = state_59; [L352] SORT_3 var_64_arg_2 = var_58; [L353] EXPR var_64_arg_0 ? var_64_arg_1 : var_64_arg_2 [L353] SORT_3 var_64 = var_64_arg_0 ? var_64_arg_1 : var_64_arg_2; [L354] SORT_1 var_69_arg_0 = var_68; [L355] SORT_3 var_69_arg_1 = state_65; [L356] SORT_3 var_69_arg_2 = var_64; [L357] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 [L357] SORT_3 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L358] SORT_1 var_74_arg_0 = var_73; [L359] SORT_3 var_74_arg_1 = state_70; [L360] SORT_3 var_74_arg_2 = var_69; [L361] EXPR var_74_arg_0 ? var_74_arg_1 : var_74_arg_2 [L361] SORT_3 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L362] SORT_1 var_79_arg_0 = var_78; [L363] SORT_3 var_79_arg_1 = state_75; [L364] SORT_3 var_79_arg_2 = var_74; [L365] EXPR var_79_arg_0 ? var_79_arg_1 : var_79_arg_2 [L365] SORT_3 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L366] SORT_1 var_85_arg_0 = var_84; [L367] SORT_3 var_85_arg_1 = state_80; [L368] SORT_3 var_85_arg_2 = var_79; [L369] EXPR var_85_arg_0 ? var_85_arg_1 : var_85_arg_2 [L369] SORT_3 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L370] SORT_1 var_90_arg_0 = var_89; [L371] SORT_3 var_90_arg_1 = state_86; [L372] SORT_3 var_90_arg_2 = var_85; [L373] EXPR var_90_arg_0 ? var_90_arg_1 : var_90_arg_2 [L373] SORT_3 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L374] SORT_1 var_95_arg_0 = var_94; [L375] SORT_3 var_95_arg_1 = state_91; [L376] SORT_3 var_95_arg_2 = var_90; [L377] EXPR var_95_arg_0 ? var_95_arg_1 : var_95_arg_2 [L377] SORT_3 var_95 = var_95_arg_0 ? var_95_arg_1 : var_95_arg_2; [L378] SORT_1 var_99_arg_0 = var_98; [L379] SORT_3 var_99_arg_1 = state_96; [L380] SORT_3 var_99_arg_2 = var_95; [L381] EXPR var_99_arg_0 ? var_99_arg_1 : var_99_arg_2 [L381] SORT_3 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L382] var_99 = var_99 & mask_SORT_3 [L383] SORT_3 var_129_arg_0 = state_128; [L384] SORT_3 var_129_arg_1 = var_99; [L385] SORT_1 var_129 = var_129_arg_0 == var_129_arg_1; [L386] SORT_1 var_130_arg_0 = var_127; [L387] SORT_1 var_130_arg_1 = var_129; [L388] SORT_1 var_130 = var_130_arg_0 | var_130_arg_1; [L389] SORT_1 var_151_arg_0 = state_132; [L390] SORT_1 var_151_arg_1 = input_150; [L391] SORT_1 var_151_arg_2 = var_130; [L392] EXPR var_151_arg_0 ? var_151_arg_1 : var_151_arg_2 [L392] SORT_1 var_151 = var_151_arg_0 ? var_151_arg_1 : var_151_arg_2; [L393] SORT_1 var_154_arg_0 = var_151; [L394] SORT_1 var_154 = ~var_154_arg_0; [L395] SORT_1 var_155_arg_0 = var_153; [L396] SORT_1 var_155_arg_1 = var_154; [L397] SORT_1 var_155 = var_155_arg_0 & var_155_arg_1; [L398] var_155 = var_155 & mask_SORT_1 [L399] SORT_1 bad_156_arg_0 = var_155; [L400] CALL __VERIFIER_assert(!(bad_156_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 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 122.6s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 64.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 04:04:48,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/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_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/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_672e6d23-97f8-4678-9e7e-264050f8c589/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 ebc3b9722e1ef534bcc44d25c662e14f69944bbb283d1760d9c655dd0829a5b5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 04:04:51,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:04:51,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:04:51,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:04:51,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:04:51,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:04:51,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:04:51,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:04:51,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:04:51,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:04:51,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:04:51,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:04:51,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:04:51,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:04:51,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:04:51,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:04:51,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:04:51,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:04:51,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:04:51,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:04:51,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:04:51,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:04:51,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:04:51,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:04:51,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:04:51,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:04:51,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:04:51,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:04:51,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:04:51,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:04:51,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:04:51,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:04:51,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:04:51,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:04:51,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:04:51,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:04:51,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:04:51,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:04:51,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:04:51,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:04:51,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:04:51,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 04:04:51,239 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:04:51,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:04:51,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:04:51,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:04:51,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:04:51,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:04:51,244 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:04:51,244 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:04:51,244 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:04:51,245 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:04:51,246 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:04:51,246 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:04:51,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:04:51,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:04:51,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:04:51,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:04:51,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:04:51,249 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 04:04:51,249 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 04:04:51,250 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 04:04:51,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:04:51,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:04:51,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:04:51,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:04:51,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 04:04:51,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:04:51,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:04:51,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:04:51,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:04:51,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:04:51,252 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 04:04:51,252 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 04:04:51,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:04:51,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:04:51,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 04:04:51,253 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_672e6d23-97f8-4678-9e7e-264050f8c589/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebc3b9722e1ef534bcc44d25c662e14f69944bbb283d1760d9c655dd0829a5b5 [2022-11-03 04:04:51,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:04:51,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:04:51,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:04:51,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:04:51,751 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:04:51,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2022-11-03 04:04:51,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data/e2a0ba79c/e451f66ba2d54ee08af81a4dac5ec31b/FLAGab351b1b4 [2022-11-03 04:04:52,504 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:04:52,505 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2022-11-03 04:04:52,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data/e2a0ba79c/e451f66ba2d54ee08af81a4dac5ec31b/FLAGab351b1b4 [2022-11-03 04:04:52,813 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/data/e2a0ba79c/e451f66ba2d54ee08af81a4dac5ec31b [2022-11-03 04:04:52,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:04:52,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:04:52,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:04:52,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:04:52,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:04:52,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:04:52" (1/1) ... [2022-11-03 04:04:52,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6bf613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:52, skipping insertion in model container [2022-11-03 04:04:52,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:04:52" (1/1) ... [2022-11-03 04:04:52,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:04:52,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:04:53,111 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_672e6d23-97f8-4678-9e7e-264050f8c589/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c[1116,1129] [2022-11-03 04:04:53,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:04:53,459 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:04:53,474 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_672e6d23-97f8-4678-9e7e-264050f8c589/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c[1116,1129] [2022-11-03 04:04:53,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:04:53,604 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:04:53,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53 WrapperNode [2022-11-03 04:04:53,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:04:53,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:04:53,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:04:53,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:04:53,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,737 INFO L138 Inliner]: procedures = 11, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1142 [2022-11-03 04:04:53,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:04:53,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:04:53,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:04:53,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:04:53,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,838 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:04:53,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:04:53,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:04:53,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:04:53,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (1/1) ... [2022-11-03 04:04:53,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:04:53,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:04:53,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:04:53,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:04:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:04:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:04:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 04:04:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 04:04:54,313 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:04:54,316 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:04:55,431 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:04:55,447 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:04:55,447 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 04:04:55,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:04:55 BoogieIcfgContainer [2022-11-03 04:04:55,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:04:55,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:04:55,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:04:55,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:04:55,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:04:52" (1/3) ... [2022-11-03 04:04:55,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f7b6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:04:55, skipping insertion in model container [2022-11-03 04:04:55,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:04:53" (2/3) ... [2022-11-03 04:04:55,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f7b6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:04:55, skipping insertion in model container [2022-11-03 04:04:55,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:04:55" (3/3) ... [2022-11-03 04:04:55,464 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2022-11-03 04:04:55,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:04:55,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:04:55,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:04:55,612 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;@30c7e5f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:04:55,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:04:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 149 states have (on average 1.483221476510067) internal successors, (221), 150 states have internal predecessors, (221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:04:55,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:04:55,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:55,632 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:55,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:55,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:55,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1063607004, now seen corresponding path program 1 times [2022-11-03 04:04:55,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:04:55,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827863190] [2022-11-03 04:04:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:55,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:04:55,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:04:55,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:04:55,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 04:04:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:56,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 04:04:56,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 04:04:56,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:04:56,180 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:04:56,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827863190] [2022-11-03 04:04:56,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827863190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:56,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:56,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:04:56,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759930247] [2022-11-03 04:04:56,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:56,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:04:56,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:04:56,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:04:56,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:04:56,225 INFO L87 Difference]: Start difference. First operand has 155 states, 149 states have (on average 1.483221476510067) internal successors, (221), 150 states have internal predecessors, (221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 04:04:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:56,272 INFO L93 Difference]: Finished difference Result 304 states and 452 transitions. [2022-11-03 04:04:56,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:04:56,275 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2022-11-03 04:04:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:56,286 INFO L225 Difference]: With dead ends: 304 [2022-11-03 04:04:56,287 INFO L226 Difference]: Without dead ends: 151 [2022-11-03 04:04:56,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:04:56,295 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:56,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:04:56,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-03 04:04:56,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-11-03 04:04:56,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.4657534246575343) internal successors, (214), 146 states have internal predecessors, (214), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:04:56,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 220 transitions. [2022-11-03 04:04:56,351 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 220 transitions. Word has length 63 [2022-11-03 04:04:56,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:56,352 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 220 transitions. [2022-11-03 04:04:56,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 04:04:56,352 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 220 transitions. [2022-11-03 04:04:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:04:56,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:56,355 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:56,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:04:56,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:04:56,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:56,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:56,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1458232482, now seen corresponding path program 1 times [2022-11-03 04:04:56,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:04:56,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091114107] [2022-11-03 04:04:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:56,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:04:56,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:04:56,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:04:56,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 04:04:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:56,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:04:56,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:04:57,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:04:57,235 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:04:57,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091114107] [2022-11-03 04:04:57,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091114107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:57,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:57,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:04:57,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48405415] [2022-11-03 04:04:57,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:57,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:04:57,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:04:57,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:04:57,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:04:57,246 INFO L87 Difference]: Start difference. First operand 151 states and 220 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:04:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:57,675 INFO L93 Difference]: Finished difference Result 600 states and 881 transitions. [2022-11-03 04:04:57,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:04:57,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:04:57,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:57,679 INFO L225 Difference]: With dead ends: 600 [2022-11-03 04:04:57,679 INFO L226 Difference]: Without dead ends: 451 [2022-11-03 04:04:57,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:04:57,681 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1411 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:57,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 914 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:04:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-11-03 04:04:57,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 153. [2022-11-03 04:04:57,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.4594594594594594) internal successors, (216), 148 states have internal predecessors, (216), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:04:57,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 222 transitions. [2022-11-03 04:04:57,708 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 222 transitions. Word has length 63 [2022-11-03 04:04:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:57,709 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 222 transitions. [2022-11-03 04:04:57,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:04:57,709 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 222 transitions. [2022-11-03 04:04:57,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:04:57,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:57,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:57,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:04:57,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:04:57,934 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:57,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:57,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1852599268, now seen corresponding path program 1 times [2022-11-03 04:04:57,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:04:57,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938380207] [2022-11-03 04:04:57,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:57,936 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:04:57,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:04:57,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:04:57,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 04:04:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:58,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:04:58,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:04:58,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:04:58,569 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:04:58,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938380207] [2022-11-03 04:04:58,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938380207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:58,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:58,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:04:58,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852201302] [2022-11-03 04:04:58,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:58,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:04:58,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:04:58,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:04:58,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:04:58,580 INFO L87 Difference]: Start difference. First operand 153 states and 222 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:04:58,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:04:58,944 INFO L93 Difference]: Finished difference Result 606 states and 887 transitions. [2022-11-03 04:04:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:04:58,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:04:58,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:04:58,947 INFO L225 Difference]: With dead ends: 606 [2022-11-03 04:04:58,948 INFO L226 Difference]: Without dead ends: 455 [2022-11-03 04:04:58,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:04:58,950 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 1411 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:04:58,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 901 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:04:58,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-11-03 04:04:58,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 157. [2022-11-03 04:04:58,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 152 states have (on average 1.4539473684210527) internal successors, (221), 152 states have internal predecessors, (221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:04:58,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 227 transitions. [2022-11-03 04:04:58,978 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 227 transitions. Word has length 63 [2022-11-03 04:04:58,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:04:58,979 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 227 transitions. [2022-11-03 04:04:58,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:04:58,979 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 227 transitions. [2022-11-03 04:04:58,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:04:58,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:04:58,988 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:04:59,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:04:59,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:04:59,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:04:59,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:04:59,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1577839654, now seen corresponding path program 1 times [2022-11-03 04:04:59,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:04:59,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182415633] [2022-11-03 04:04:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:04:59,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:04:59,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:04:59,206 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:04:59,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 04:04:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:04:59,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:04:59,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:04:59,731 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:04:59,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:04:59,731 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:04:59,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182415633] [2022-11-03 04:04:59,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182415633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:04:59,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:04:59,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:04:59,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005061011] [2022-11-03 04:04:59,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:04:59,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:04:59,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:04:59,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:04:59,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:04:59,734 INFO L87 Difference]: Start difference. First operand 157 states and 227 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:00,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:00,077 INFO L93 Difference]: Finished difference Result 612 states and 893 transitions. [2022-11-03 04:05:00,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:00,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:00,081 INFO L225 Difference]: With dead ends: 612 [2022-11-03 04:05:00,081 INFO L226 Difference]: Without dead ends: 457 [2022-11-03 04:05:00,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:00,083 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1414 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:00,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 910 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:05:00,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-11-03 04:05:00,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 159. [2022-11-03 04:05:00,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 154 states have (on average 1.448051948051948) internal successors, (223), 154 states have internal predecessors, (223), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:00,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 229 transitions. [2022-11-03 04:05:00,097 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 229 transitions. Word has length 63 [2022-11-03 04:05:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:00,097 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 229 transitions. [2022-11-03 04:05:00,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:00,098 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 229 transitions. [2022-11-03 04:05:00,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:00,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:00,099 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:00,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:00,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:00,317 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:00,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:00,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1555207400, now seen corresponding path program 1 times [2022-11-03 04:05:00,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:00,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066764426] [2022-11-03 04:05:00,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:00,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:00,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:00,320 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:00,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 04:05:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:00,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:00,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:00,920 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:00,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:00,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:00,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066764426] [2022-11-03 04:05:00,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066764426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:00,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:00,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:00,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938871590] [2022-11-03 04:05:00,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:00,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:00,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:00,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:00,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:00,931 INFO L87 Difference]: Start difference. First operand 159 states and 229 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:01,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:01,284 INFO L93 Difference]: Finished difference Result 616 states and 896 transitions. [2022-11-03 04:05:01,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:01,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:01,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:01,290 INFO L225 Difference]: With dead ends: 616 [2022-11-03 04:05:01,290 INFO L226 Difference]: Without dead ends: 459 [2022-11-03 04:05:01,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:01,294 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1391 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:01,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 924 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:05:01,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-11-03 04:05:01,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 161. [2022-11-03 04:05:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4423076923076923) internal successors, (225), 156 states have internal predecessors, (225), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:01,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 231 transitions. [2022-11-03 04:05:01,331 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 231 transitions. Word has length 63 [2022-11-03 04:05:01,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:01,333 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 231 transitions. [2022-11-03 04:05:01,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:01,334 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 231 transitions. [2022-11-03 04:05:01,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:01,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:01,337 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:01,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:01,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:01,553 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:01,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:01,553 INFO L85 PathProgramCache]: Analyzing trace with hash -2064680490, now seen corresponding path program 1 times [2022-11-03 04:05:01,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:01,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671195069] [2022-11-03 04:05:01,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:01,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:01,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:01,556 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:01,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 04:05:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:01,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:01,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:02,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:02,050 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:02,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671195069] [2022-11-03 04:05:02,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671195069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:02,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:02,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:02,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408572389] [2022-11-03 04:05:02,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:02,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:02,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:02,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:02,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:02,053 INFO L87 Difference]: Start difference. First operand 161 states and 231 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:02,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:02,443 INFO L93 Difference]: Finished difference Result 620 states and 899 transitions. [2022-11-03 04:05:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:02,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:02,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:02,446 INFO L225 Difference]: With dead ends: 620 [2022-11-03 04:05:02,447 INFO L226 Difference]: Without dead ends: 461 [2022-11-03 04:05:02,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:02,453 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 1394 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:02,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 904 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:05:02,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-03 04:05:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 163. [2022-11-03 04:05:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.4367088607594938) internal successors, (227), 158 states have internal predecessors, (227), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 233 transitions. [2022-11-03 04:05:02,479 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 233 transitions. Word has length 63 [2022-11-03 04:05:02,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:02,480 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 233 transitions. [2022-11-03 04:05:02,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:02,480 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 233 transitions. [2022-11-03 04:05:02,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:02,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:02,482 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:02,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:02,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:02,697 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:02,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:02,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2002640876, now seen corresponding path program 1 times [2022-11-03 04:05:02,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:02,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470959543] [2022-11-03 04:05:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:02,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:02,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:02,700 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:02,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-03 04:05:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:03,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:03,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:03,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:03,205 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:03,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470959543] [2022-11-03 04:05:03,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470959543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:03,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:03,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:03,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821087617] [2022-11-03 04:05:03,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:03,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:03,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:03,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:03,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:03,208 INFO L87 Difference]: Start difference. First operand 163 states and 233 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:03,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:03,526 INFO L93 Difference]: Finished difference Result 624 states and 902 transitions. [2022-11-03 04:05:03,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:03,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:03,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:03,529 INFO L225 Difference]: With dead ends: 624 [2022-11-03 04:05:03,529 INFO L226 Difference]: Without dead ends: 463 [2022-11-03 04:05:03,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:03,530 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1387 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:03,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 918 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:05:03,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-11-03 04:05:03,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 165. [2022-11-03 04:05:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 160 states have (on average 1.43125) internal successors, (229), 160 states have internal predecessors, (229), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 235 transitions. [2022-11-03 04:05:03,544 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 235 transitions. Word has length 63 [2022-11-03 04:05:03,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:03,545 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 235 transitions. [2022-11-03 04:05:03,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:03,545 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 235 transitions. [2022-11-03 04:05:03,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:03,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:03,546 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:03,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:03,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:03,759 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:03,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:03,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2136654382, now seen corresponding path program 1 times [2022-11-03 04:05:03,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:03,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883134797] [2022-11-03 04:05:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:03,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:03,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:03,762 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:03,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 04:05:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:04,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:04,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:04,259 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:04,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:04,260 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:04,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883134797] [2022-11-03 04:05:04,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883134797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:04,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:04,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:04,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210005197] [2022-11-03 04:05:04,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:04,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:04,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:04,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:04,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:04,262 INFO L87 Difference]: Start difference. First operand 165 states and 235 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:04,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:04,541 INFO L93 Difference]: Finished difference Result 628 states and 905 transitions. [2022-11-03 04:05:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:04,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:04,543 INFO L225 Difference]: With dead ends: 628 [2022-11-03 04:05:04,544 INFO L226 Difference]: Without dead ends: 465 [2022-11-03 04:05:04,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:04,545 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1380 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:04,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 951 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:05:04,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-03 04:05:04,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 167. [2022-11-03 04:05:04,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.4259259259259258) internal successors, (231), 162 states have internal predecessors, (231), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:04,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 237 transitions. [2022-11-03 04:05:04,558 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 237 transitions. Word has length 63 [2022-11-03 04:05:04,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:04,559 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 237 transitions. [2022-11-03 04:05:04,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:04,559 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 237 transitions. [2022-11-03 04:05:04,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:04,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:04,560 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:04,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:04,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:04,773 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:04,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:04,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1917799664, now seen corresponding path program 1 times [2022-11-03 04:05:04,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:04,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245797876] [2022-11-03 04:05:04,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:04,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:04,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:04,776 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:04,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-03 04:05:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:05,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:05,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:05,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:05,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:05,232 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:05,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245797876] [2022-11-03 04:05:05,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245797876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:05,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:05,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:05,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292611860] [2022-11-03 04:05:05,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:05,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:05,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:05,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:05,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:05,234 INFO L87 Difference]: Start difference. First operand 167 states and 237 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:05,526 INFO L93 Difference]: Finished difference Result 632 states and 908 transitions. [2022-11-03 04:05:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:05,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:05,529 INFO L225 Difference]: With dead ends: 632 [2022-11-03 04:05:05,529 INFO L226 Difference]: Without dead ends: 467 [2022-11-03 04:05:05,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:05,530 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1375 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:05,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 940 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:05:05,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-11-03 04:05:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 169. [2022-11-03 04:05:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.420731707317073) internal successors, (233), 164 states have internal predecessors, (233), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:05,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 239 transitions. [2022-11-03 04:05:05,545 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 239 transitions. Word has length 63 [2022-11-03 04:05:05,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:05,545 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 239 transitions. [2022-11-03 04:05:05,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 239 transitions. [2022-11-03 04:05:05,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:05,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:05,547 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:05,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:05,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:05,760 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:05,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:05,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1559519182, now seen corresponding path program 1 times [2022-11-03 04:05:05,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:05,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137070736] [2022-11-03 04:05:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:05,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:05,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:05,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:05,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 04:05:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:06,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:06,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:06,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:06,236 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:06,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137070736] [2022-11-03 04:05:06,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137070736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:06,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:06,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:06,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656991008] [2022-11-03 04:05:06,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:06,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:06,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:06,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:06,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:06,239 INFO L87 Difference]: Start difference. First operand 169 states and 239 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:06,543 INFO L93 Difference]: Finished difference Result 636 states and 911 transitions. [2022-11-03 04:05:06,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:06,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:06,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:06,546 INFO L225 Difference]: With dead ends: 636 [2022-11-03 04:05:06,546 INFO L226 Difference]: Without dead ends: 469 [2022-11-03 04:05:06,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:06,548 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1366 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:06,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 950 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:05:06,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-11-03 04:05:06,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 171. [2022-11-03 04:05:06,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.4156626506024097) internal successors, (235), 166 states have internal predecessors, (235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:06,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 241 transitions. [2022-11-03 04:05:06,565 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 241 transitions. Word has length 63 [2022-11-03 04:05:06,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:06,566 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 241 transitions. [2022-11-03 04:05:06,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:06,566 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 241 transitions. [2022-11-03 04:05:06,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:06,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:06,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:06,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:06,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:06,780 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:06,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:06,781 INFO L85 PathProgramCache]: Analyzing trace with hash -434625524, now seen corresponding path program 1 times [2022-11-03 04:05:06,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:06,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781557444] [2022-11-03 04:05:06,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:06,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:06,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:06,783 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:06,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-03 04:05:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:07,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:07,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:07,273 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:07,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:07,273 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:07,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781557444] [2022-11-03 04:05:07,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781557444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:07,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:07,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:07,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385352347] [2022-11-03 04:05:07,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:07,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:07,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:07,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:07,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:07,276 INFO L87 Difference]: Start difference. First operand 171 states and 241 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:07,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:07,598 INFO L93 Difference]: Finished difference Result 642 states and 917 transitions. [2022-11-03 04:05:07,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:07,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:07,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:07,602 INFO L225 Difference]: With dead ends: 642 [2022-11-03 04:05:07,602 INFO L226 Difference]: Without dead ends: 473 [2022-11-03 04:05:07,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:07,603 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1361 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:07,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 944 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:05:07,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-11-03 04:05:07,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 175. [2022-11-03 04:05:07,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 170 states have (on average 1.411764705882353) internal successors, (240), 170 states have internal predecessors, (240), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2022-11-03 04:05:07,621 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 63 [2022-11-03 04:05:07,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:07,622 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2022-11-03 04:05:07,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2022-11-03 04:05:07,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:07,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:07,623 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:07,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:07,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:07,848 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:07,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:07,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1445742774, now seen corresponding path program 1 times [2022-11-03 04:05:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:07,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481583379] [2022-11-03 04:05:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:07,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:07,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:07,851 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:07,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 04:05:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:08,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:08,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:08,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:08,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:08,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481583379] [2022-11-03 04:05:08,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481583379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:08,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:08,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:08,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541795439] [2022-11-03 04:05:08,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:08,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:08,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:08,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:08,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:08,323 INFO L87 Difference]: Start difference. First operand 175 states and 246 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:08,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:08,590 INFO L93 Difference]: Finished difference Result 648 states and 923 transitions. [2022-11-03 04:05:08,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:08,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:08,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:08,592 INFO L225 Difference]: With dead ends: 648 [2022-11-03 04:05:08,593 INFO L226 Difference]: Without dead ends: 475 [2022-11-03 04:05:08,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:08,594 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1355 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:08,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 954 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:05:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-11-03 04:05:08,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 177. [2022-11-03 04:05:08,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 172 states have (on average 1.4069767441860466) internal successors, (242), 172 states have internal predecessors, (242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:08,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 248 transitions. [2022-11-03 04:05:08,609 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 248 transitions. Word has length 63 [2022-11-03 04:05:08,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:08,610 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 248 transitions. [2022-11-03 04:05:08,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:08,610 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 248 transitions. [2022-11-03 04:05:08,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:08,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:08,611 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:08,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:08,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:08,825 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:08,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:08,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1187577336, now seen corresponding path program 1 times [2022-11-03 04:05:08,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:08,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534394195] [2022-11-03 04:05:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:08,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:08,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:08,828 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:08,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 04:05:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:09,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:09,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:09,316 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:09,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:09,316 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:09,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534394195] [2022-11-03 04:05:09,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534394195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:09,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:09,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:09,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202690651] [2022-11-03 04:05:09,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:09,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:09,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:09,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:09,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:09,319 INFO L87 Difference]: Start difference. First operand 177 states and 248 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:09,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:09,605 INFO L93 Difference]: Finished difference Result 652 states and 926 transitions. [2022-11-03 04:05:09,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:09,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:09,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:09,608 INFO L225 Difference]: With dead ends: 652 [2022-11-03 04:05:09,608 INFO L226 Difference]: Without dead ends: 477 [2022-11-03 04:05:09,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:09,610 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1346 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:09,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 970 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:05:09,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-03 04:05:09,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 179. [2022-11-03 04:05:09,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 174 states have (on average 1.4022988505747127) internal successors, (244), 174 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:09,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 250 transitions. [2022-11-03 04:05:09,627 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 250 transitions. Word has length 63 [2022-11-03 04:05:09,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:09,627 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 250 transitions. [2022-11-03 04:05:09,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:09,628 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 250 transitions. [2022-11-03 04:05:09,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:09,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:09,629 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:09,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:09,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:09,842 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:09,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:09,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1580604346, now seen corresponding path program 1 times [2022-11-03 04:05:09,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:09,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785321378] [2022-11-03 04:05:09,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:09,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:09,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:09,844 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:09,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 04:05:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:10,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:10,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:10,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:10,323 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:10,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785321378] [2022-11-03 04:05:10,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785321378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:10,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:10,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:10,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161473572] [2022-11-03 04:05:10,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:10,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:10,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:10,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:10,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:10,325 INFO L87 Difference]: Start difference. First operand 179 states and 250 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:10,796 INFO L93 Difference]: Finished difference Result 656 states and 929 transitions. [2022-11-03 04:05:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:10,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:10,799 INFO L225 Difference]: With dead ends: 656 [2022-11-03 04:05:10,799 INFO L226 Difference]: Without dead ends: 479 [2022-11-03 04:05:10,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:10,801 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 1337 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:10,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 855 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:05:10,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-11-03 04:05:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 181. [2022-11-03 04:05:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.3977272727272727) internal successors, (246), 176 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 252 transitions. [2022-11-03 04:05:10,819 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 252 transitions. Word has length 63 [2022-11-03 04:05:10,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:10,819 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 252 transitions. [2022-11-03 04:05:10,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:10,820 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 252 transitions. [2022-11-03 04:05:10,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:10,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:10,820 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:10,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:11,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:11,035 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:11,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1905016324, now seen corresponding path program 1 times [2022-11-03 04:05:11,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:11,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485456344] [2022-11-03 04:05:11,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:11,036 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:11,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:11,037 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:11,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 04:05:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:11,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 04:05:11,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:11,520 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:11,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:11,520 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:11,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485456344] [2022-11-03 04:05:11,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485456344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:11,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:11,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:11,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128634981] [2022-11-03 04:05:11,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:11,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:11,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:11,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:11,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:11,523 INFO L87 Difference]: Start difference. First operand 181 states and 252 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:11,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:11,988 INFO L93 Difference]: Finished difference Result 660 states and 932 transitions. [2022-11-03 04:05:11,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:11,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:11,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:11,990 INFO L225 Difference]: With dead ends: 660 [2022-11-03 04:05:11,990 INFO L226 Difference]: Without dead ends: 481 [2022-11-03 04:05:11,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:05:11,992 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 1329 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:11,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 863 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:05:11,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-03 04:05:12,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 183. [2022-11-03 04:05:12,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.3932584269662922) internal successors, (248), 178 states have internal predecessors, (248), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:12,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 254 transitions. [2022-11-03 04:05:12,010 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 254 transitions. Word has length 63 [2022-11-03 04:05:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:12,011 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 254 transitions. [2022-11-03 04:05:12,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 254 transitions. [2022-11-03 04:05:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:12,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:12,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:12,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:12,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:12,225 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:12,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:12,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1962274626, now seen corresponding path program 1 times [2022-11-03 04:05:12,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:12,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689727477] [2022-11-03 04:05:12,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:12,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:12,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:12,228 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:12,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 04:05:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:12,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 04:05:12,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:12,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:12,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:12,814 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:12,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689727477] [2022-11-03 04:05:12,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689727477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:12,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:12,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:05:12,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983163874] [2022-11-03 04:05:12,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:12,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 04:05:12,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:12,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 04:05:12,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:05:12,817 INFO L87 Difference]: Start difference. First operand 183 states and 254 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:13,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:13,254 INFO L93 Difference]: Finished difference Result 509 states and 697 transitions. [2022-11-03 04:05:13,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:05:13,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:13,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:13,258 INFO L225 Difference]: With dead ends: 509 [2022-11-03 04:05:13,258 INFO L226 Difference]: Without dead ends: 507 [2022-11-03 04:05:13,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:05:13,259 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1243 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:13,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 954 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:05:13,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-11-03 04:05:13,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 255. [2022-11-03 04:05:13,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.364) internal successors, (341), 250 states have internal predecessors, (341), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 04:05:13,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 347 transitions. [2022-11-03 04:05:13,282 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 347 transitions. Word has length 63 [2022-11-03 04:05:13,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:13,283 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 347 transitions. [2022-11-03 04:05:13,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:13,283 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 347 transitions. [2022-11-03 04:05:13,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-03 04:05:13,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:13,287 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:05:13,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:13,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:13,500 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:13,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:13,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2084546176, now seen corresponding path program 1 times [2022-11-03 04:05:13,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:13,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113742906] [2022-11-03 04:05:13,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:13,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:13,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:13,502 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:13,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-03 04:05:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:13,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:05:13,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 04:05:13,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:13,814 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:13,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113742906] [2022-11-03 04:05:13,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113742906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:13,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:13,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:05:13,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593195023] [2022-11-03 04:05:13,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:13,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:05:13,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:13,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:05:13,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:05:13,817 INFO L87 Difference]: Start difference. First operand 255 states and 347 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:13,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:13,895 INFO L93 Difference]: Finished difference Result 690 states and 949 transitions. [2022-11-03 04:05:13,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:05:13,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2022-11-03 04:05:13,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:13,898 INFO L225 Difference]: With dead ends: 690 [2022-11-03 04:05:13,898 INFO L226 Difference]: Without dead ends: 437 [2022-11-03 04:05:13,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:05:13,900 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 407 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:13,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 671 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:05:13,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-11-03 04:05:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 263. [2022-11-03 04:05:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 255 states have (on average 1.3568627450980393) internal successors, (346), 255 states have internal predecessors, (346), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 358 transitions. [2022-11-03 04:05:13,936 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 358 transitions. Word has length 63 [2022-11-03 04:05:13,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:13,936 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 358 transitions. [2022-11-03 04:05:13,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-03 04:05:13,937 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 358 transitions. [2022-11-03 04:05:13,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:13,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:13,940 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:13,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:14,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:14,162 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:14,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:14,163 INFO L85 PathProgramCache]: Analyzing trace with hash 84546769, now seen corresponding path program 1 times [2022-11-03 04:05:14,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:14,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117401900] [2022-11-03 04:05:14,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:14,164 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:14,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:14,166 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:14,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 04:05:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:14,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:05:14,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:05:14,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:15,234 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:05:15,234 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:15,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117401900] [2022-11-03 04:05:15,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117401900] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:05:15,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1411754203] [2022-11-03 04:05:15,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:15,235 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:15,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:05:15,240 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:05:15,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-03 04:05:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:16,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:05:16,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:16,143 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:16,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:16,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1411754203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:16,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:05:16,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:05:16,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138767502] [2022-11-03 04:05:16,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:16,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:05:16,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:16,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:05:16,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:05:16,146 INFO L87 Difference]: Start difference. First operand 263 states and 358 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:16,434 INFO L93 Difference]: Finished difference Result 1151 states and 1560 transitions. [2022-11-03 04:05:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:16,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:16,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:16,437 INFO L225 Difference]: With dead ends: 1151 [2022-11-03 04:05:16,438 INFO L226 Difference]: Without dead ends: 898 [2022-11-03 04:05:16,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:05:16,439 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 967 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:16,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 853 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:05:16,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-11-03 04:05:16,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 411. [2022-11-03 04:05:16,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 403 states have (on average 1.3349875930521091) internal successors, (538), 403 states have internal predecessors, (538), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:16,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 550 transitions. [2022-11-03 04:05:16,475 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 550 transitions. Word has length 218 [2022-11-03 04:05:16,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:16,476 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 550 transitions. [2022-11-03 04:05:16,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:16,477 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 550 transitions. [2022-11-03 04:05:16,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:16,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:16,480 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:16,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:16,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:16,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:16,899 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:16,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:16,900 INFO L85 PathProgramCache]: Analyzing trace with hash -301315633, now seen corresponding path program 1 times [2022-11-03 04:05:16,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:16,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210452833] [2022-11-03 04:05:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:16,901 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:16,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:16,902 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:16,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 04:05:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:17,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:17,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:17,891 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:17,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:17,892 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:17,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210452833] [2022-11-03 04:05:17,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210452833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:17,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:17,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:17,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225247763] [2022-11-03 04:05:17,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:17,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:17,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:17,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:17,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:17,895 INFO L87 Difference]: Start difference. First operand 411 states and 550 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:18,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:18,292 INFO L93 Difference]: Finished difference Result 1749 states and 2338 transitions. [2022-11-03 04:05:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:18,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:18,297 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:05:18,298 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:05:18,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:18,299 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 619 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:18,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1322 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 148 Invalid, 0 Unknown, 82 Unchecked, 0.3s Time] [2022-11-03 04:05:18,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:05:18,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 571. [2022-11-03 04:05:18,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 563 states have (on average 1.325044404973357) internal successors, (746), 563 states have internal predecessors, (746), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 758 transitions. [2022-11-03 04:05:18,336 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 758 transitions. Word has length 218 [2022-11-03 04:05:18,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:18,336 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 758 transitions. [2022-11-03 04:05:18,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:18,337 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 758 transitions. [2022-11-03 04:05:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:18,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:18,340 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:18,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:18,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:18,559 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:18,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:18,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1629810001, now seen corresponding path program 1 times [2022-11-03 04:05:18,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:18,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536548504] [2022-11-03 04:05:18,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:18,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:18,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:18,562 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:18,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 04:05:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:19,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:19,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:19,548 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:19,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:19,548 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:19,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536548504] [2022-11-03 04:05:19,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536548504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:19,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:19,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:19,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479718119] [2022-11-03 04:05:19,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:19,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:19,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:19,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:19,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:19,551 INFO L87 Difference]: Start difference. First operand 571 states and 758 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:19,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:19,921 INFO L93 Difference]: Finished difference Result 1749 states and 2337 transitions. [2022-11-03 04:05:19,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:19,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:19,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:19,926 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:05:19,927 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:05:19,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:19,928 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 607 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:19,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 1340 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 151 Invalid, 0 Unknown, 77 Unchecked, 0.3s Time] [2022-11-03 04:05:19,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:05:19,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 575. [2022-11-03 04:05:19,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 567 states have (on average 1.3245149911816578) internal successors, (751), 567 states have internal predecessors, (751), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:19,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 763 transitions. [2022-11-03 04:05:19,984 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 763 transitions. Word has length 218 [2022-11-03 04:05:19,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:19,984 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 763 transitions. [2022-11-03 04:05:19,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:19,985 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 763 transitions. [2022-11-03 04:05:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:19,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:19,988 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:20,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:20,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:20,208 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:20,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2056364499, now seen corresponding path program 1 times [2022-11-03 04:05:20,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:20,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001164009] [2022-11-03 04:05:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:20,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:20,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:20,210 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:20,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 04:05:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:20,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:20,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:21,251 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:21,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:21,252 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:21,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001164009] [2022-11-03 04:05:21,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001164009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:21,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:21,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:21,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979703283] [2022-11-03 04:05:21,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:21,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:21,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:21,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:21,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:21,254 INFO L87 Difference]: Start difference. First operand 575 states and 763 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:21,633 INFO L93 Difference]: Finished difference Result 1749 states and 2336 transitions. [2022-11-03 04:05:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:21,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:21,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:21,637 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:05:21,638 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:05:21,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:21,639 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 534 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:21,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1533 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 98 Unchecked, 0.3s Time] [2022-11-03 04:05:21,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:05:21,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 579. [2022-11-03 04:05:21,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 571 states have (on average 1.3239929947460596) internal successors, (756), 571 states have internal predecessors, (756), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:21,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 768 transitions. [2022-11-03 04:05:21,690 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 768 transitions. Word has length 218 [2022-11-03 04:05:21,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:21,690 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 768 transitions. [2022-11-03 04:05:21,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:21,691 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 768 transitions. [2022-11-03 04:05:21,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:21,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:21,695 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:21,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:21,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:21,914 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:21,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:21,914 INFO L85 PathProgramCache]: Analyzing trace with hash 268494677, now seen corresponding path program 1 times [2022-11-03 04:05:21,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:21,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728563419] [2022-11-03 04:05:21,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:21,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:21,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:21,917 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:21,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-03 04:05:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:22,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:22,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:23,010 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:23,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:23,011 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:23,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728563419] [2022-11-03 04:05:23,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728563419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:23,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:23,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:23,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218120592] [2022-11-03 04:05:23,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:23,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:23,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:23,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:23,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:23,014 INFO L87 Difference]: Start difference. First operand 579 states and 768 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:23,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:23,372 INFO L93 Difference]: Finished difference Result 1720 states and 2293 transitions. [2022-11-03 04:05:23,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:23,373 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:23,378 INFO L225 Difference]: With dead ends: 1720 [2022-11-03 04:05:23,378 INFO L226 Difference]: Without dead ends: 1319 [2022-11-03 04:05:23,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:23,380 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 476 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:23,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1519 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 152 Invalid, 0 Unknown, 91 Unchecked, 0.3s Time] [2022-11-03 04:05:23,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2022-11-03 04:05:23,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 587. [2022-11-03 04:05:23,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 579 states have (on average 1.3246977547495682) internal successors, (767), 579 states have internal predecessors, (767), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:23,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 779 transitions. [2022-11-03 04:05:23,420 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 779 transitions. Word has length 218 [2022-11-03 04:05:23,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:23,420 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 779 transitions. [2022-11-03 04:05:23,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:23,421 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 779 transitions. [2022-11-03 04:05:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:23,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:23,424 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:23,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:23,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:23,643 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:23,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:23,644 INFO L85 PathProgramCache]: Analyzing trace with hash -276377897, now seen corresponding path program 1 times [2022-11-03 04:05:23,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:23,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571038158] [2022-11-03 04:05:23,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:23,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:23,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:23,647 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:23,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 04:05:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:24,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:24,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:24,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:24,734 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:24,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571038158] [2022-11-03 04:05:24,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571038158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:24,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:24,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:24,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959911347] [2022-11-03 04:05:24,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:24,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:24,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:24,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:24,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:24,737 INFO L87 Difference]: Start difference. First operand 587 states and 779 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:25,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:25,145 INFO L93 Difference]: Finished difference Result 1749 states and 2334 transitions. [2022-11-03 04:05:25,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:25,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:25,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:25,151 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:05:25,151 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:05:25,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:25,159 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 500 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:25,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1590 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 98 Unchecked, 0.3s Time] [2022-11-03 04:05:25,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:05:25,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 591. [2022-11-03 04:05:25,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 583 states have (on average 1.3241852487135506) internal successors, (772), 583 states have internal predecessors, (772), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:25,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 784 transitions. [2022-11-03 04:05:25,203 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 784 transitions. Word has length 218 [2022-11-03 04:05:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:25,204 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 784 transitions. [2022-11-03 04:05:25,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 784 transitions. [2022-11-03 04:05:25,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:25,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:25,208 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:25,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:25,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:25,428 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:25,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:25,428 INFO L85 PathProgramCache]: Analyzing trace with hash -710883495, now seen corresponding path program 1 times [2022-11-03 04:05:25,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:25,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037430904] [2022-11-03 04:05:25,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:25,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:25,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:25,430 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:25,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-03 04:05:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:25,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:25,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:26,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:26,510 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:26,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037430904] [2022-11-03 04:05:26,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037430904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:26,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:26,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:26,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966494167] [2022-11-03 04:05:26,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:26,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:26,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:26,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:26,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:26,512 INFO L87 Difference]: Start difference. First operand 591 states and 784 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:26,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:26,858 INFO L93 Difference]: Finished difference Result 1749 states and 2333 transitions. [2022-11-03 04:05:26,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:26,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:26,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:26,863 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:05:26,863 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:05:26,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:26,865 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 553 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:26,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1421 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 161 Invalid, 0 Unknown, 78 Unchecked, 0.3s Time] [2022-11-03 04:05:26,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:05:26,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 595. [2022-11-03 04:05:26,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 587 states have (on average 1.323679727427598) internal successors, (777), 587 states have internal predecessors, (777), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 789 transitions. [2022-11-03 04:05:26,910 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 789 transitions. Word has length 218 [2022-11-03 04:05:26,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:26,910 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 789 transitions. [2022-11-03 04:05:26,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 789 transitions. [2022-11-03 04:05:26,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:26,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:26,915 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:26,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:27,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:27,134 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:27,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:27,135 INFO L85 PathProgramCache]: Analyzing trace with hash 150950107, now seen corresponding path program 1 times [2022-11-03 04:05:27,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:27,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585231238] [2022-11-03 04:05:27,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:27,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:27,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:27,137 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:27,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-03 04:05:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:27,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:27,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:28,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:28,213 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:28,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585231238] [2022-11-03 04:05:28,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585231238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:28,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:28,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:28,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33687102] [2022-11-03 04:05:28,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:28,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:28,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:28,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:28,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:28,215 INFO L87 Difference]: Start difference. First operand 595 states and 789 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:28,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:28,583 INFO L93 Difference]: Finished difference Result 1749 states and 2332 transitions. [2022-11-03 04:05:28,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:28,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:28,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:28,589 INFO L225 Difference]: With dead ends: 1749 [2022-11-03 04:05:28,589 INFO L226 Difference]: Without dead ends: 1348 [2022-11-03 04:05:28,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:28,591 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 478 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:28,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 1620 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 168 Invalid, 0 Unknown, 77 Unchecked, 0.3s Time] [2022-11-03 04:05:28,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2022-11-03 04:05:28,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 599. [2022-11-03 04:05:28,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 591 states have (on average 1.3231810490693738) internal successors, (782), 591 states have internal predecessors, (782), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 794 transitions. [2022-11-03 04:05:28,630 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 794 transitions. Word has length 218 [2022-11-03 04:05:28,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:28,630 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 794 transitions. [2022-11-03 04:05:28,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 794 transitions. [2022-11-03 04:05:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:28,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:28,633 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:28,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:28,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:28,852 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:28,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:28,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1131222179, now seen corresponding path program 1 times [2022-11-03 04:05:28,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:28,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303413318] [2022-11-03 04:05:28,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:28,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:28,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:28,854 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:28,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-03 04:05:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:29,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:05:29,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:29,592 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:05:29,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:05:29,888 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:29,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303413318] [2022-11-03 04:05:29,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303413318] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:05:29,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2138411397] [2022-11-03 04:05:29,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:29,888 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:29,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:05:29,889 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:05:29,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2022-11-03 04:05:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:30,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:05:30,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:30,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:30,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2138411397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:30,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:05:30,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:05:30,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236945491] [2022-11-03 04:05:30,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:30,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:05:30,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:30,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:05:30,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:05:30,820 INFO L87 Difference]: Start difference. First operand 599 states and 794 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:31,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:31,083 INFO L93 Difference]: Finished difference Result 1549 states and 2080 transitions. [2022-11-03 04:05:31,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:31,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:31,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:31,087 INFO L225 Difference]: With dead ends: 1549 [2022-11-03 04:05:31,087 INFO L226 Difference]: Without dead ends: 1148 [2022-11-03 04:05:31,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:05:31,089 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 932 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:31,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 893 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:05:31,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-11-03 04:05:31,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 661. [2022-11-03 04:05:31,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 653 states have (on average 1.327718223583461) internal successors, (867), 653 states have internal predecessors, (867), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 879 transitions. [2022-11-03 04:05:31,126 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 879 transitions. Word has length 218 [2022-11-03 04:05:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:31,126 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 879 transitions. [2022-11-03 04:05:31,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 879 transitions. [2022-11-03 04:05:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:31,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:31,130 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:31,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:31,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:31,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:31,545 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:31,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash 590780507, now seen corresponding path program 1 times [2022-11-03 04:05:31,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:31,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711828764] [2022-11-03 04:05:31,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:31,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:31,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:31,548 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:31,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-03 04:05:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:32,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:32,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:32,611 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:32,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:32,611 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:32,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711828764] [2022-11-03 04:05:32,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [711828764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:32,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:32,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:32,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351794124] [2022-11-03 04:05:32,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:32,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:32,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:32,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:32,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:32,613 INFO L87 Difference]: Start difference. First operand 661 states and 879 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:32,967 INFO L93 Difference]: Finished difference Result 1877 states and 2512 transitions. [2022-11-03 04:05:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:32,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:32,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:32,972 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 04:05:32,972 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 04:05:32,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:32,973 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 469 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:32,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1620 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 72 Unchecked, 0.3s Time] [2022-11-03 04:05:32,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 04:05:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 667. [2022-11-03 04:05:33,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 659 states have (on average 1.3262518968133536) internal successors, (874), 659 states have internal predecessors, (874), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:33,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 886 transitions. [2022-11-03 04:05:33,013 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 886 transitions. Word has length 218 [2022-11-03 04:05:33,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:33,014 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 886 transitions. [2022-11-03 04:05:33,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:33,014 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 886 transitions. [2022-11-03 04:05:33,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:33,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:33,017 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:33,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:33,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:33,233 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:33,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:33,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1775254563, now seen corresponding path program 1 times [2022-11-03 04:05:33,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:33,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42980554] [2022-11-03 04:05:33,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:33,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:33,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:33,235 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:33,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 04:05:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:33,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:33,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:34,324 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:34,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:34,325 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:34,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42980554] [2022-11-03 04:05:34,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42980554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:34,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:34,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:34,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141409140] [2022-11-03 04:05:34,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:34,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:34,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:34,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:34,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:34,326 INFO L87 Difference]: Start difference. First operand 667 states and 886 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:34,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:34,678 INFO L93 Difference]: Finished difference Result 1877 states and 2511 transitions. [2022-11-03 04:05:34,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:34,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:34,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:34,683 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 04:05:34,684 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 04:05:34,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:34,685 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 458 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:34,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1635 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 51 Unchecked, 0.3s Time] [2022-11-03 04:05:34,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 04:05:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 671. [2022-11-03 04:05:34,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 663 states have (on average 1.3257918552036199) internal successors, (879), 663 states have internal predecessors, (879), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:34,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 891 transitions. [2022-11-03 04:05:34,726 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 891 transitions. Word has length 218 [2022-11-03 04:05:34,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:34,727 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 891 transitions. [2022-11-03 04:05:34,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:34,727 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 891 transitions. [2022-11-03 04:05:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:34,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:34,729 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:34,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2022-11-03 04:05:34,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:34,935 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:34,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:34,936 INFO L85 PathProgramCache]: Analyzing trace with hash 872349791, now seen corresponding path program 1 times [2022-11-03 04:05:34,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:34,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798776224] [2022-11-03 04:05:34,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:34,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:34,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:34,938 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:34,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-03 04:05:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:35,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:35,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:36,030 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:36,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:36,030 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:36,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798776224] [2022-11-03 04:05:36,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798776224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:36,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:36,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:36,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54043154] [2022-11-03 04:05:36,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:36,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:36,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:36,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:36,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:36,033 INFO L87 Difference]: Start difference. First operand 671 states and 891 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:36,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:36,356 INFO L93 Difference]: Finished difference Result 1792 states and 2385 transitions. [2022-11-03 04:05:36,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:36,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:36,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:36,361 INFO L225 Difference]: With dead ends: 1792 [2022-11-03 04:05:36,361 INFO L226 Difference]: Without dead ends: 1359 [2022-11-03 04:05:36,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:36,363 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 376 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:36,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 1470 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 152 Invalid, 0 Unknown, 67 Unchecked, 0.2s Time] [2022-11-03 04:05:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2022-11-03 04:05:36,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 675. [2022-11-03 04:05:36,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 667 states have (on average 1.3253373313343328) internal successors, (884), 667 states have internal predecessors, (884), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:36,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 896 transitions. [2022-11-03 04:05:36,404 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 896 transitions. Word has length 218 [2022-11-03 04:05:36,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:36,405 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 896 transitions. [2022-11-03 04:05:36,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:36,405 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 896 transitions. [2022-11-03 04:05:36,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:36,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:36,407 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:36,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-11-03 04:05:36,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:36,626 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:36,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:36,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1269510687, now seen corresponding path program 1 times [2022-11-03 04:05:36,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:36,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206859627] [2022-11-03 04:05:36,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:36,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:36,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:36,631 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:36,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-03 04:05:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:37,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:37,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:37,885 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:37,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:37,886 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:37,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206859627] [2022-11-03 04:05:37,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206859627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:37,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:37,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:37,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545410845] [2022-11-03 04:05:37,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:37,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:37,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:37,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:37,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:37,888 INFO L87 Difference]: Start difference. First operand 675 states and 896 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:38,269 INFO L93 Difference]: Finished difference Result 1877 states and 2509 transitions. [2022-11-03 04:05:38,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:38,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:38,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:38,274 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 04:05:38,274 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 04:05:38,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:38,275 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 426 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1682 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:38,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1682 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 176 Invalid, 0 Unknown, 88 Unchecked, 0.3s Time] [2022-11-03 04:05:38,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 04:05:38,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 683. [2022-11-03 04:05:38,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 675 states have (on average 1.325925925925926) internal successors, (895), 675 states have internal predecessors, (895), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:38,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 907 transitions. [2022-11-03 04:05:38,317 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 907 transitions. Word has length 218 [2022-11-03 04:05:38,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:38,317 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 907 transitions. [2022-11-03 04:05:38,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:38,318 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 907 transitions. [2022-11-03 04:05:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:38,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:38,320 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:38,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:38,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:38,537 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:38,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:38,537 INFO L85 PathProgramCache]: Analyzing trace with hash -238469789, now seen corresponding path program 1 times [2022-11-03 04:05:38,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:38,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063928921] [2022-11-03 04:05:38,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:38,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:38,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:38,539 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:38,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-03 04:05:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:39,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:05:39,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:39,776 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:39,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:39,776 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:39,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063928921] [2022-11-03 04:05:39,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063928921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:39,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:39,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:39,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193762386] [2022-11-03 04:05:39,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:39,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:39,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:39,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:39,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:39,778 INFO L87 Difference]: Start difference. First operand 683 states and 907 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:40,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:40,104 INFO L93 Difference]: Finished difference Result 1780 states and 2365 transitions. [2022-11-03 04:05:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:40,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:40,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:40,109 INFO L225 Difference]: With dead ends: 1780 [2022-11-03 04:05:40,110 INFO L226 Difference]: Without dead ends: 1347 [2022-11-03 04:05:40,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:40,111 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 388 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:40,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1278 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 82 Unchecked, 0.2s Time] [2022-11-03 04:05:40,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2022-11-03 04:05:40,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 687. [2022-11-03 04:05:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 679 states have (on average 1.3254786450662739) internal successors, (900), 679 states have internal predecessors, (900), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:40,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 912 transitions. [2022-11-03 04:05:40,163 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 912 transitions. Word has length 218 [2022-11-03 04:05:40,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:40,163 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 912 transitions. [2022-11-03 04:05:40,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:40,164 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 912 transitions. [2022-11-03 04:05:40,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:40,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:40,166 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:40,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2022-11-03 04:05:40,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:40,380 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1112915429, now seen corresponding path program 1 times [2022-11-03 04:05:40,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:40,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314326250] [2022-11-03 04:05:40,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:40,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:40,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:40,384 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:40,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 04:05:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:40,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:05:40,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:41,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:41,388 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:41,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314326250] [2022-11-03 04:05:41,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314326250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:41,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:41,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:41,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589255898] [2022-11-03 04:05:41,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:41,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:41,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:41,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:41,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:41,390 INFO L87 Difference]: Start difference. First operand 687 states and 912 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:41,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:41,795 INFO L93 Difference]: Finished difference Result 1877 states and 2507 transitions. [2022-11-03 04:05:41,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:41,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:41,800 INFO L225 Difference]: With dead ends: 1877 [2022-11-03 04:05:41,800 INFO L226 Difference]: Without dead ends: 1444 [2022-11-03 04:05:41,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:41,808 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 402 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 105 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:41,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1723 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 181 Invalid, 0 Unknown, 105 Unchecked, 0.3s Time] [2022-11-03 04:05:41,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-11-03 04:05:41,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 691. [2022-11-03 04:05:41,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 683 states have (on average 1.3250366032210834) internal successors, (905), 683 states have internal predecessors, (905), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:41,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 917 transitions. [2022-11-03 04:05:41,853 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 917 transitions. Word has length 218 [2022-11-03 04:05:41,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:41,854 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 917 transitions. [2022-11-03 04:05:41,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:41,854 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 917 transitions. [2022-11-03 04:05:41,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:41,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:41,856 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:41,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:42,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:42,075 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:42,076 INFO L85 PathProgramCache]: Analyzing trace with hash -827666585, now seen corresponding path program 1 times [2022-11-03 04:05:42,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:42,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454110699] [2022-11-03 04:05:42,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:42,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:42,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:42,080 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:42,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-03 04:05:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:42,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:05:42,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:43,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:43,056 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:43,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454110699] [2022-11-03 04:05:43,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454110699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:43,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:05:43,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:05:43,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874497063] [2022-11-03 04:05:43,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:43,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:05:43,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:43,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:05:43,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:05:43,058 INFO L87 Difference]: Start difference. First operand 691 states and 917 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:43,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:43,280 INFO L93 Difference]: Finished difference Result 1128 states and 1507 transitions. [2022-11-03 04:05:43,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:05:43,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:43,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:43,283 INFO L225 Difference]: With dead ends: 1128 [2022-11-03 04:05:43,283 INFO L226 Difference]: Without dead ends: 695 [2022-11-03 04:05:43,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:05:43,285 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 41 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:43,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 951 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 62 Unchecked, 0.2s Time] [2022-11-03 04:05:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-11-03 04:05:43,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2022-11-03 04:05:43,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 687 states have (on average 1.3245997088791848) internal successors, (910), 687 states have internal predecessors, (910), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:43,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 922 transitions. [2022-11-03 04:05:43,316 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 922 transitions. Word has length 218 [2022-11-03 04:05:43,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:43,317 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 922 transitions. [2022-11-03 04:05:43,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:43,317 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 922 transitions. [2022-11-03 04:05:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:43,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:43,320 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:43,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2022-11-03 04:05:43,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:43,539 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:43,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:43,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1413942807, now seen corresponding path program 1 times [2022-11-03 04:05:43,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:43,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556607800] [2022-11-03 04:05:43,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:43,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:43,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:43,542 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:43,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-03 04:05:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:44,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:05:44,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:44,280 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:05:44,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:44,625 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:05:44,625 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:44,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556607800] [2022-11-03 04:05:44,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556607800] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:05:44,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1681804456] [2022-11-03 04:05:44,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:44,626 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:44,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:05:44,627 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:05:44,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2022-11-03 04:05:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:45,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:05:45,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:45,585 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:45,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:45,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1681804456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:45,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:05:45,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:05:45,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403347361] [2022-11-03 04:05:45,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:45,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:05:45,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:45,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:05:45,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:05:45,587 INFO L87 Difference]: Start difference. First operand 695 states and 922 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:45,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:45,862 INFO L93 Difference]: Finished difference Result 1677 states and 2254 transitions. [2022-11-03 04:05:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:45,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:45,866 INFO L225 Difference]: With dead ends: 1677 [2022-11-03 04:05:45,866 INFO L226 Difference]: Without dead ends: 1244 [2022-11-03 04:05:45,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:05:45,867 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 891 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:45,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 940 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:05:45,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-11-03 04:05:45,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 757. [2022-11-03 04:05:45,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 749 states have (on average 1.328437917222964) internal successors, (995), 749 states have internal predecessors, (995), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:45,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1007 transitions. [2022-11-03 04:05:45,908 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1007 transitions. Word has length 218 [2022-11-03 04:05:45,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:45,908 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 1007 transitions. [2022-11-03 04:05:45,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:45,909 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1007 transitions. [2022-11-03 04:05:45,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:45,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:45,911 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:45,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:46,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-03 04:05:46,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:05:46,317 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:46,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:46,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1004541671, now seen corresponding path program 1 times [2022-11-03 04:05:46,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:46,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137725706] [2022-11-03 04:05:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:46,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:46,320 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:46,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-03 04:05:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:46,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:05:46,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:47,063 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:05:47,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:47,417 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:05:47,417 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:47,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137725706] [2022-11-03 04:05:47,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137725706] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:05:47,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1385972315] [2022-11-03 04:05:47,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:47,417 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:47,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:05:47,418 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:05:47,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2022-11-03 04:05:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:48,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:05:48,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:05:48,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:05:48,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1385972315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:05:48,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:05:48,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:05:48,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478749878] [2022-11-03 04:05:48,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:05:48,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:05:48,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:48,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:05:48,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:05:48,386 INFO L87 Difference]: Start difference. First operand 757 states and 1007 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:48,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:48,650 INFO L93 Difference]: Finished difference Result 1723 states and 2320 transitions. [2022-11-03 04:05:48,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:05:48,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:05:48,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:48,653 INFO L225 Difference]: With dead ends: 1723 [2022-11-03 04:05:48,654 INFO L226 Difference]: Without dead ends: 1258 [2022-11-03 04:05:48,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:05:48,655 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 880 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:48,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 949 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:05:48,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-11-03 04:05:48,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 771. [2022-11-03 04:05:48,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 763 states have (on average 1.3302752293577982) internal successors, (1015), 763 states have internal predecessors, (1015), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1027 transitions. [2022-11-03 04:05:48,705 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1027 transitions. Word has length 218 [2022-11-03 04:05:48,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:48,706 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1027 transitions. [2022-11-03 04:05:48,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:05:48,706 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1027 transitions. [2022-11-03 04:05:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:48,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:48,709 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:48,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2022-11-03 04:05:48,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2022-11-03 04:05:49,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:49,128 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:49,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1971892325, now seen corresponding path program 1 times [2022-11-03 04:05:49,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:49,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253221878] [2022-11-03 04:05:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:49,130 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:49,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:49,132 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:49,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-03 04:05:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:49,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:05:49,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 47 proven. 16 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:05:50,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:52,746 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:52,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253221878] [2022-11-03 04:05:52,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253221878] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:52,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2122586713] [2022-11-03 04:05:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:52,747 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:52,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:05:52,748 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:05:52,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2022-11-03 04:05:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:53,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:05:53,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:05:53,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:05:54,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2122586713] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:05:54,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174570186] [2022-11-03 04:05:54,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:54,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:05:54,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:05:54,204 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:05:54,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-11-03 04:05:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:54,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:05:54,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:54,900 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:05:54,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:55,144 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:05:55,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174570186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:05:55,144 INFO L184 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2022-11-03 04:05:55,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6, 6, 6] total 14 [2022-11-03 04:05:55,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146414595] [2022-11-03 04:05:55,145 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2022-11-03 04:05:55,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:05:55,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:05:55,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:05:55,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:05:55,147 INFO L87 Difference]: Start difference. First operand 771 states and 1027 transitions. Second operand has 14 states, 13 states have (on average 29.076923076923077) internal successors, (378), 14 states have internal predecessors, (378), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 04:05:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:05:57,060 INFO L93 Difference]: Finished difference Result 1547 states and 2114 transitions. [2022-11-03 04:05:57,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 04:05:57,061 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 29.076923076923077) internal successors, (378), 14 states have internal predecessors, (378), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 218 [2022-11-03 04:05:57,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:05:57,065 INFO L225 Difference]: With dead ends: 1547 [2022-11-03 04:05:57,065 INFO L226 Difference]: Without dead ends: 1068 [2022-11-03 04:05:57,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1305 GetRequests, 1266 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-11-03 04:05:57,067 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 913 mSDsluCounter, 5085 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 5812 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:05:57,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 5812 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1357 Invalid, 0 Unknown, 254 Unchecked, 1.3s Time] [2022-11-03 04:05:57,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-11-03 04:05:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 629. [2022-11-03 04:05:57,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 621 states have (on average 1.3317230273752012) internal successors, (827), 621 states have internal predecessors, (827), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 04:05:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 839 transitions. [2022-11-03 04:05:57,111 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 839 transitions. Word has length 218 [2022-11-03 04:05:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:05:57,112 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 839 transitions. [2022-11-03 04:05:57,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 29.076923076923077) internal successors, (378), 14 states have internal predecessors, (378), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2022-11-03 04:05:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 839 transitions. [2022-11-03 04:05:57,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:05:57,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:05:57,115 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:05:57,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2022-11-03 04:05:57,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2022-11-03 04:05:57,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2022-11-03 04:05:57,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:57,721 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:05:57,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:05:57,721 INFO L85 PathProgramCache]: Analyzing trace with hash 600144609, now seen corresponding path program 1 times [2022-11-03 04:05:57,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:05:57,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198793513] [2022-11-03 04:05:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:57,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:05:57,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:05:57,724 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:05:57,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-03 04:05:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:58,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:05:58,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:05:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:05:58,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:05:58,817 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:05:58,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198793513] [2022-11-03 04:05:58,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198793513] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:05:58,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [233144665] [2022-11-03 04:05:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:05:58,818 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:05:58,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:05:58,819 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:05:58,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2022-11-03 04:05:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:05:59,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:05:59,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:06:00,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:01,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [233144665] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:06:01,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918727831] [2022-11-03 04:06:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:01,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:01,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:06:01,103 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:06:01,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-11-03 04:06:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:01,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 04:06:01,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:06:02,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:03,102 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-03 04:06:03,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918727831] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:03,103 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-03 04:06:03,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 8, 8] total 28 [2022-11-03 04:06:03,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373755190] [2022-11-03 04:06:03,103 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-03 04:06:03,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-03 04:06:03,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:03,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-03 04:06:03,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1099, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 04:06:03,106 INFO L87 Difference]: Start difference. First operand 629 states and 839 transitions. Second operand has 28 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2022-11-03 04:06:10,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:10,624 INFO L93 Difference]: Finished difference Result 3249 states and 4498 transitions. [2022-11-03 04:06:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-11-03 04:06:10,625 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 218 [2022-11-03 04:06:10,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:10,631 INFO L225 Difference]: With dead ends: 3249 [2022-11-03 04:06:10,631 INFO L226 Difference]: Without dead ends: 2996 [2022-11-03 04:06:10,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1030 GetRequests, 923 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2326 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=2327, Invalid=9445, Unknown=0, NotChecked=0, Total=11772 [2022-11-03 04:06:10,635 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 4075 mSDsluCounter, 15474 mSDsCounter, 0 mSdLazyCounter, 3584 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4075 SdHoareTripleChecker+Valid, 16642 SdHoareTripleChecker+Invalid, 4952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 3584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1047 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:10,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4075 Valid, 16642 Invalid, 4952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 3584 Invalid, 0 Unknown, 1047 Unchecked, 3.6s Time] [2022-11-03 04:06:10,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2022-11-03 04:06:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 852. [2022-11-03 04:06:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 835 states have (on average 1.3449101796407186) internal successors, (1123), 835 states have internal predecessors, (1123), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1153 transitions. [2022-11-03 04:06:10,743 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1153 transitions. Word has length 218 [2022-11-03 04:06:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:10,744 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1153 transitions. [2022-11-03 04:06:10,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2022-11-03 04:06:10,745 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1153 transitions. [2022-11-03 04:06:10,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:10,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:10,748 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:10,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:10,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:11,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2022-11-03 04:06:11,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:06:11,368 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:11,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:11,369 INFO L85 PathProgramCache]: Analyzing trace with hash 685485245, now seen corresponding path program 1 times [2022-11-03 04:06:11,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:11,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610506171] [2022-11-03 04:06:11,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:11,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:11,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:11,371 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:11,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-03 04:06:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:11,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:11,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:12,182 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 04:06:12,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:12,526 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 04:06:12,526 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:12,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610506171] [2022-11-03 04:06:12,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610506171] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:12,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1089774769] [2022-11-03 04:06:12,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:12,527 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:12,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:12,531 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:12,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2022-11-03 04:06:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:13,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:13,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:13,513 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:13,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:13,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1089774769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:13,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:13,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 14 [2022-11-03 04:06:13,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928858214] [2022-11-03 04:06:13,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:13,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:13,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:13,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:13,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:06:13,515 INFO L87 Difference]: Start difference. First operand 852 states and 1153 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:13,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:13,799 INFO L93 Difference]: Finished difference Result 1490 states and 2045 transitions. [2022-11-03 04:06:13,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:13,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:13,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:13,802 INFO L225 Difference]: With dead ends: 1490 [2022-11-03 04:06:13,802 INFO L226 Difference]: Without dead ends: 1076 [2022-11-03 04:06:13,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-03 04:06:13,804 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 727 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:13,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 918 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:13,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-11-03 04:06:13,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 844. [2022-11-03 04:06:13,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.343409915356711) internal successors, (1111), 827 states have internal predecessors, (1111), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1141 transitions. [2022-11-03 04:06:13,887 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1141 transitions. Word has length 218 [2022-11-03 04:06:13,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:13,888 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1141 transitions. [2022-11-03 04:06:13,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:13,888 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1141 transitions. [2022-11-03 04:06:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:13,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:13,891 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:13,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2022-11-03 04:06:14,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (47)] Ended with exit code 0 [2022-11-03 04:06:14,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:14,297 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:14,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:14,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1867745683, now seen corresponding path program 1 times [2022-11-03 04:06:14,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:14,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894720770] [2022-11-03 04:06:14,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:14,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:14,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:14,300 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:14,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-11-03 04:06:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:14,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:14,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:14,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:15,056 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:15,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894720770] [2022-11-03 04:06:15,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894720770] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:15,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1682899784] [2022-11-03 04:06:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:15,057 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:15,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:15,060 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:15,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2022-11-03 04:06:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:15,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:15,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:15,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:15,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1682899784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:15,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:15,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331559489] [2022-11-03 04:06:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:15,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:15,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:15,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:15,984 INFO L87 Difference]: Start difference. First operand 844 states and 1141 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:16,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:16,269 INFO L93 Difference]: Finished difference Result 1596 states and 2170 transitions. [2022-11-03 04:06:16,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:16,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:16,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:16,271 INFO L225 Difference]: With dead ends: 1596 [2022-11-03 04:06:16,272 INFO L226 Difference]: Without dead ends: 1062 [2022-11-03 04:06:16,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:16,273 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 565 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:16,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1103 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:16,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-11-03 04:06:16,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 844. [2022-11-03 04:06:16,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3409915356711004) internal successors, (1109), 827 states have internal predecessors, (1109), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1139 transitions. [2022-11-03 04:06:16,371 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1139 transitions. Word has length 218 [2022-11-03 04:06:16,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:16,371 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1139 transitions. [2022-11-03 04:06:16,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:16,372 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1139 transitions. [2022-11-03 04:06:16,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:16,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:16,375 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:16,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:16,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:16,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:16,781 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:16,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:16,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1022029935, now seen corresponding path program 1 times [2022-11-03 04:06:16,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:16,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207805764] [2022-11-03 04:06:16,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:16,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:16,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:16,784 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:16,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-11-03 04:06:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:17,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:17,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:17,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:17,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:17,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207805764] [2022-11-03 04:06:17,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207805764] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:17,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [225087966] [2022-11-03 04:06:17,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:17,599 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:17,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:17,600 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:17,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2022-11-03 04:06:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:18,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:18,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:18,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:18,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [225087966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:18,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:18,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:18,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178460386] [2022-11-03 04:06:18,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:18,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:18,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:18,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:18,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:18,519 INFO L87 Difference]: Start difference. First operand 844 states and 1139 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:18,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:18,811 INFO L93 Difference]: Finished difference Result 1579 states and 2145 transitions. [2022-11-03 04:06:18,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:18,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:18,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:18,813 INFO L225 Difference]: With dead ends: 1579 [2022-11-03 04:06:18,813 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:18,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:18,815 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 555 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:18,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1102 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:18,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:18,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.336154776299879) internal successors, (1105), 827 states have internal predecessors, (1105), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:18,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1135 transitions. [2022-11-03 04:06:18,923 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1135 transitions. Word has length 218 [2022-11-03 04:06:18,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:18,924 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1135 transitions. [2022-11-03 04:06:18,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:18,924 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1135 transitions. [2022-11-03 04:06:18,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:18,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:18,927 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:18,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:19,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2022-11-03 04:06:19,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:19,347 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:19,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:19,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1375957903, now seen corresponding path program 1 times [2022-11-03 04:06:19,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:19,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148207319] [2022-11-03 04:06:19,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:19,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:19,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:19,349 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:19,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-11-03 04:06:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:19,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:19,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:19,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:20,146 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:20,146 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:20,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148207319] [2022-11-03 04:06:20,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148207319] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:20,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [187329616] [2022-11-03 04:06:20,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:20,147 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:20,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:20,147 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:20,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2022-11-03 04:06:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:20,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:20,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:21,074 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:21,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:21,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [187329616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:21,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:21,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:21,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066717564] [2022-11-03 04:06:21,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:21,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:21,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:21,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:21,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:21,076 INFO L87 Difference]: Start difference. First operand 844 states and 1135 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:21,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:21,387 INFO L93 Difference]: Finished difference Result 1571 states and 2128 transitions. [2022-11-03 04:06:21,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:21,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:21,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:21,389 INFO L225 Difference]: With dead ends: 1571 [2022-11-03 04:06:21,389 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:21,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:21,391 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 549 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:21,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1102 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:21,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:21,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3313180169286578) internal successors, (1101), 827 states have internal predecessors, (1101), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:21,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1131 transitions. [2022-11-03 04:06:21,481 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1131 transitions. Word has length 218 [2022-11-03 04:06:21,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:21,481 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1131 transitions. [2022-11-03 04:06:21,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:21,481 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1131 transitions. [2022-11-03 04:06:21,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:21,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:21,484 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:21,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:21,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:21,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:21,890 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:21,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:21,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1531938445, now seen corresponding path program 1 times [2022-11-03 04:06:21,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:21,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732664035] [2022-11-03 04:06:21,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:21,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:21,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:21,895 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:21,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-11-03 04:06:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:22,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:22,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:22,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:22,811 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:22,812 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:22,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732664035] [2022-11-03 04:06:22,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732664035] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:22,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1564634586] [2022-11-03 04:06:22,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:22,812 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:22,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:22,814 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:22,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2022-11-03 04:06:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:23,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:23,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:23,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:23,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1564634586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:23,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:23,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:23,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952899748] [2022-11-03 04:06:23,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:23,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:23,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:23,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:23,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:23,771 INFO L87 Difference]: Start difference. First operand 844 states and 1131 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:24,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:24,106 INFO L93 Difference]: Finished difference Result 1563 states and 2111 transitions. [2022-11-03 04:06:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:24,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:24,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:24,109 INFO L225 Difference]: With dead ends: 1563 [2022-11-03 04:06:24,109 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:24,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:24,111 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 543 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:24,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1096 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:24,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:24,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:24,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3264812575574365) internal successors, (1097), 827 states have internal predecessors, (1097), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1127 transitions. [2022-11-03 04:06:24,205 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1127 transitions. Word has length 218 [2022-11-03 04:06:24,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:24,206 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1127 transitions. [2022-11-03 04:06:24,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1127 transitions. [2022-11-03 04:06:24,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:24,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:24,209 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:24,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (56)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:24,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (55)] Ended with exit code 0 [2022-11-03 04:06:24,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:24,616 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:24,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:24,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1462290571, now seen corresponding path program 1 times [2022-11-03 04:06:24,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:24,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222237778] [2022-11-03 04:06:24,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:24,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:24,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:24,619 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:24,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-11-03 04:06:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:25,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:25,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:25,232 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:25,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:25,388 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:25,388 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:25,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222237778] [2022-11-03 04:06:25,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222237778] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:25,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [641132434] [2022-11-03 04:06:25,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:25,389 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:25,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:25,392 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:25,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2022-11-03 04:06:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:26,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:26,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:26,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:26,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [641132434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:26,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:26,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:26,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12681095] [2022-11-03 04:06:26,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:26,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:26,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:26,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:26,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:26,321 INFO L87 Difference]: Start difference. First operand 844 states and 1127 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:26,595 INFO L93 Difference]: Finished difference Result 1555 states and 2091 transitions. [2022-11-03 04:06:26,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:26,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:26,597 INFO L225 Difference]: With dead ends: 1555 [2022-11-03 04:06:26,597 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:26,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:26,599 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 537 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:26,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1093 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:26,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:26,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:26,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3216444981862152) internal successors, (1093), 827 states have internal predecessors, (1093), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:26,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1123 transitions. [2022-11-03 04:06:26,705 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1123 transitions. Word has length 218 [2022-11-03 04:06:26,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:26,707 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1123 transitions. [2022-11-03 04:06:26,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:26,708 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1123 transitions. [2022-11-03 04:06:26,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:26,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:26,712 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:26,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (58)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:26,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:27,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:27,119 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:27,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:27,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1098824073, now seen corresponding path program 1 times [2022-11-03 04:06:27,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:27,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202085366] [2022-11-03 04:06:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:27,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:27,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:27,121 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:27,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-11-03 04:06:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:27,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:27,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:27,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:27,882 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:27,882 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:27,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202085366] [2022-11-03 04:06:27,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202085366] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:27,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [649415123] [2022-11-03 04:06:27,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:27,883 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:27,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:27,884 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:27,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2022-11-03 04:06:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:28,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:28,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:28,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:28,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [649415123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:28,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:28,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:28,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715834641] [2022-11-03 04:06:28,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:28,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:28,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:28,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:28,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:28,821 INFO L87 Difference]: Start difference. First operand 844 states and 1123 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:29,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:29,141 INFO L93 Difference]: Finished difference Result 1547 states and 2074 transitions. [2022-11-03 04:06:29,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:29,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:29,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:29,144 INFO L225 Difference]: With dead ends: 1547 [2022-11-03 04:06:29,144 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:29,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:29,145 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 531 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:29,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1093 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:29,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:29,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:29,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.316807738814994) internal successors, (1089), 827 states have internal predecessors, (1089), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:29,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1119 transitions. [2022-11-03 04:06:29,247 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1119 transitions. Word has length 218 [2022-11-03 04:06:29,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:29,247 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1119 transitions. [2022-11-03 04:06:29,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:29,248 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1119 transitions. [2022-11-03 04:06:29,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:29,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:29,250 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:29,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (59)] Ended with exit code 0 [2022-11-03 04:06:29,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2022-11-03 04:06:29,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:29,665 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:29,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2046876039, now seen corresponding path program 1 times [2022-11-03 04:06:29,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:29,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693019263] [2022-11-03 04:06:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:29,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:29,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:29,668 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:29,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-11-03 04:06:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:30,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:30,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:30,286 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:30,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:30,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:30,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693019263] [2022-11-03 04:06:30,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693019263] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:30,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [866921361] [2022-11-03 04:06:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:30,483 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:30,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:30,484 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:30,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2022-11-03 04:06:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:31,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:31,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:31,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:31,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [866921361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:31,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:31,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:31,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092472216] [2022-11-03 04:06:31,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:31,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:31,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:31,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:31,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:31,454 INFO L87 Difference]: Start difference. First operand 844 states and 1119 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:31,769 INFO L93 Difference]: Finished difference Result 1539 states and 2057 transitions. [2022-11-03 04:06:31,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:31,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:31,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:31,778 INFO L225 Difference]: With dead ends: 1539 [2022-11-03 04:06:31,778 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:31,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:31,784 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 525 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:31,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1087 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:31,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:31,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:31,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3119709794437726) internal successors, (1085), 827 states have internal predecessors, (1085), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1115 transitions. [2022-11-03 04:06:31,887 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1115 transitions. Word has length 218 [2022-11-03 04:06:31,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:31,888 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1115 transitions. [2022-11-03 04:06:31,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:31,888 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1115 transitions. [2022-11-03 04:06:31,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:31,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:31,890 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:31,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (61)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:32,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:32,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:32,305 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:32,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:32,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1541494651, now seen corresponding path program 1 times [2022-11-03 04:06:32,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:32,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142456098] [2022-11-03 04:06:32,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:32,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:32,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:32,307 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:32,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-11-03 04:06:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:32,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:32,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:32,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:33,098 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:33,098 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:33,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142456098] [2022-11-03 04:06:33,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142456098] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:33,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1962051879] [2022-11-03 04:06:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:33,099 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:33,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:33,100 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:33,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2022-11-03 04:06:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:33,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:33,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:34,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:34,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1962051879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:34,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:34,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:34,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991044444] [2022-11-03 04:06:34,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:34,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:34,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:34,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:34,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:34,067 INFO L87 Difference]: Start difference. First operand 844 states and 1115 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:34,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:34,371 INFO L93 Difference]: Finished difference Result 1531 states and 2040 transitions. [2022-11-03 04:06:34,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:34,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:34,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:34,373 INFO L225 Difference]: With dead ends: 1531 [2022-11-03 04:06:34,373 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:34,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:34,375 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 519 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:34,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1084 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:34,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:34,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:34,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.3071342200725513) internal successors, (1081), 827 states have internal predecessors, (1081), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1111 transitions. [2022-11-03 04:06:34,463 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1111 transitions. Word has length 218 [2022-11-03 04:06:34,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:34,463 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1111 transitions. [2022-11-03 04:06:34,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1111 transitions. [2022-11-03 04:06:34,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:34,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:34,465 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:34,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2022-11-03 04:06:34,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (63)] Ended with exit code 0 [2022-11-03 04:06:34,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:34,865 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:34,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:34,866 INFO L85 PathProgramCache]: Analyzing trace with hash 2029541757, now seen corresponding path program 1 times [2022-11-03 04:06:34,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:34,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535642006] [2022-11-03 04:06:34,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:34,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:34,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:34,868 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:34,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-11-03 04:06:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:35,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:35,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:35,489 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:35,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:35,651 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:35,651 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:35,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535642006] [2022-11-03 04:06:35,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535642006] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:35,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [77918035] [2022-11-03 04:06:35,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:35,652 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:35,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:35,653 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:35,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2022-11-03 04:06:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:36,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:36,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:36,624 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:36,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:36,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [77918035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:36,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:36,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:36,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557413495] [2022-11-03 04:06:36,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:36,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:36,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:36,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:36,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:36,653 INFO L87 Difference]: Start difference. First operand 844 states and 1111 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:36,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:36,933 INFO L93 Difference]: Finished difference Result 1515 states and 2016 transitions. [2022-11-03 04:06:36,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:36,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:36,935 INFO L225 Difference]: With dead ends: 1515 [2022-11-03 04:06:36,936 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:36,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:36,937 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 509 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:36,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1083 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:37,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:37,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.30229746070133) internal successors, (1077), 827 states have internal predecessors, (1077), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:37,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1107 transitions. [2022-11-03 04:06:37,032 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1107 transitions. Word has length 218 [2022-11-03 04:06:37,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:37,033 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1107 transitions. [2022-11-03 04:06:37,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:37,033 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1107 transitions. [2022-11-03 04:06:37,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:37,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:37,036 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:37,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2022-11-03 04:06:37,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:37,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:37,442 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:37,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:37,443 INFO L85 PathProgramCache]: Analyzing trace with hash -538280577, now seen corresponding path program 1 times [2022-11-03 04:06:37,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:37,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417039075] [2022-11-03 04:06:37,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:37,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:37,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:37,448 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:37,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-11-03 04:06:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:38,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:38,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:38,226 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:38,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:38,417 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:38,417 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:38,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417039075] [2022-11-03 04:06:38,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417039075] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:38,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [518548297] [2022-11-03 04:06:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:38,418 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:38,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:38,419 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:38,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2022-11-03 04:06:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:39,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:39,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:39,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:39,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [518548297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:39,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:39,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:39,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401913962] [2022-11-03 04:06:39,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:39,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:39,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:39,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:39,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:39,411 INFO L87 Difference]: Start difference. First operand 844 states and 1107 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:39,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:39,717 INFO L93 Difference]: Finished difference Result 1507 states and 1999 transitions. [2022-11-03 04:06:39,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:39,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:39,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:39,719 INFO L225 Difference]: With dead ends: 1507 [2022-11-03 04:06:39,719 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:39,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:39,721 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 503 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:39,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1080 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:39,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:39,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.297460701330109) internal successors, (1073), 827 states have internal predecessors, (1073), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:39,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1103 transitions. [2022-11-03 04:06:39,834 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1103 transitions. Word has length 218 [2022-11-03 04:06:39,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:39,835 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1103 transitions. [2022-11-03 04:06:39,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:39,835 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1103 transitions. [2022-11-03 04:06:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:39,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:39,837 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:39,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:40,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:40,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:40,256 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:40,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:40,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1576865151, now seen corresponding path program 1 times [2022-11-03 04:06:40,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:40,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618148113] [2022-11-03 04:06:40,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:40,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:40,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:40,259 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:40,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-11-03 04:06:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:40,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:40,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:40,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:41,078 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:41,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618148113] [2022-11-03 04:06:41,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618148113] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:41,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [206998379] [2022-11-03 04:06:41,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:41,078 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:41,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:41,079 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:41,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2022-11-03 04:06:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:41,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:41,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:42,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:42,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [206998379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:42,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:42,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:42,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176972836] [2022-11-03 04:06:42,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:42,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:42,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:42,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:42,068 INFO L87 Difference]: Start difference. First operand 844 states and 1103 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:42,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:42,378 INFO L93 Difference]: Finished difference Result 1499 states and 1982 transitions. [2022-11-03 04:06:42,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:42,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:42,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:42,380 INFO L225 Difference]: With dead ends: 1499 [2022-11-03 04:06:42,380 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:42,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:42,381 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 497 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:42,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1080 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:42,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:42,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:42,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2926239419588876) internal successors, (1069), 827 states have internal predecessors, (1069), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:42,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1099 transitions. [2022-11-03 04:06:42,450 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1099 transitions. Word has length 218 [2022-11-03 04:06:42,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:42,450 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1099 transitions. [2022-11-03 04:06:42,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:42,450 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1099 transitions. [2022-11-03 04:06:42,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:42,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:42,453 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:42,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (69)] Ended with exit code 0 [2022-11-03 04:06:42,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2022-11-03 04:06:42,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:42,854 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:42,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:42,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1458423677, now seen corresponding path program 1 times [2022-11-03 04:06:42,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:42,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692872409] [2022-11-03 04:06:42,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:42,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:42,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:42,857 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:42,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-11-03 04:06:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:43,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:43,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:43,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:43,620 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:43,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692872409] [2022-11-03 04:06:43,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1692872409] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:43,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1554311691] [2022-11-03 04:06:43,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:43,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:43,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:43,622 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:43,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2022-11-03 04:06:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:44,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:44,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:44,635 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:44,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:44,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1554311691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:44,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:44,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:44,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034955758] [2022-11-03 04:06:44,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:44,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:44,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:44,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:44,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:44,637 INFO L87 Difference]: Start difference. First operand 844 states and 1099 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:44,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:44,918 INFO L93 Difference]: Finished difference Result 1491 states and 1962 transitions. [2022-11-03 04:06:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:44,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:44,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:44,920 INFO L225 Difference]: With dead ends: 1491 [2022-11-03 04:06:44,921 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:44,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:44,921 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 491 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:44,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1074 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:44,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:44,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:44,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2877871825876663) internal successors, (1065), 827 states have internal predecessors, (1065), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1095 transitions. [2022-11-03 04:06:44,981 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1095 transitions. Word has length 218 [2022-11-03 04:06:44,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:44,981 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1095 transitions. [2022-11-03 04:06:44,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:44,982 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1095 transitions. [2022-11-03 04:06:44,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:44,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:44,984 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:45,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:45,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:45,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:45,402 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:45,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:45,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1529401221, now seen corresponding path program 1 times [2022-11-03 04:06:45,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:45,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810004630] [2022-11-03 04:06:45,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:45,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:45,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:45,405 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:45,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-11-03 04:06:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:46,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:46,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:46,093 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:46,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:46,261 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:46,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810004630] [2022-11-03 04:06:46,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810004630] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:46,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1578824576] [2022-11-03 04:06:46,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:46,261 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:46,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:46,262 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:46,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2022-11-03 04:06:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:47,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:47,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:47,258 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:47,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:47,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1578824576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:47,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:47,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:47,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611236369] [2022-11-03 04:06:47,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:47,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:47,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:47,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:47,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:47,260 INFO L87 Difference]: Start difference. First operand 844 states and 1095 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:47,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:47,589 INFO L93 Difference]: Finished difference Result 1483 states and 1945 transitions. [2022-11-03 04:06:47,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:47,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:47,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:47,592 INFO L225 Difference]: With dead ends: 1483 [2022-11-03 04:06:47,593 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:47,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:47,594 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 485 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:47,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1074 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:47,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:47,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.282950423216445) internal successors, (1061), 827 states have internal predecessors, (1061), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:47,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1091 transitions. [2022-11-03 04:06:47,692 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1091 transitions. Word has length 218 [2022-11-03 04:06:47,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:47,693 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1091 transitions. [2022-11-03 04:06:47,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:47,693 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1091 transitions. [2022-11-03 04:06:47,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:47,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:47,695 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:47,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (74)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:47,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:48,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:48,102 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:48,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:48,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1164494969, now seen corresponding path program 1 times [2022-11-03 04:06:48,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:48,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246318762] [2022-11-03 04:06:48,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:48,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:48,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:48,104 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:48,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-11-03 04:06:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:48,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:48,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:48,735 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:48,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:48,898 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:48,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246318762] [2022-11-03 04:06:48,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246318762] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:48,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1637874525] [2022-11-03 04:06:48,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:48,898 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:48,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:48,900 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:48,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2022-11-03 04:06:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:49,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:49,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:49,954 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:49,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:49,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1637874525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:49,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:49,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:49,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966256309] [2022-11-03 04:06:49,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:49,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:49,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:49,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:49,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:49,957 INFO L87 Difference]: Start difference. First operand 844 states and 1091 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:50,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:50,301 INFO L93 Difference]: Finished difference Result 1475 states and 1928 transitions. [2022-11-03 04:06:50,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:50,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:50,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:50,304 INFO L225 Difference]: With dead ends: 1475 [2022-11-03 04:06:50,304 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:50,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:50,307 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 479 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:50,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1068 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:50,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:50,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:50,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2781136638452237) internal successors, (1057), 827 states have internal predecessors, (1057), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:50,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1087 transitions. [2022-11-03 04:06:50,408 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1087 transitions. Word has length 218 [2022-11-03 04:06:50,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:50,409 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1087 transitions. [2022-11-03 04:06:50,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:50,409 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1087 transitions. [2022-11-03 04:06:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:50,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:50,411 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:50,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:50,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (76)] Ended with exit code 0 [2022-11-03 04:06:50,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:50,830 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:50,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2048003959, now seen corresponding path program 1 times [2022-11-03 04:06:50,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:50,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797359021] [2022-11-03 04:06:50,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:50,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:50,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:50,832 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:50,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-11-03 04:06:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:51,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:51,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:51,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:51,663 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:51,663 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:51,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797359021] [2022-11-03 04:06:51,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797359021] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:51,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [975143230] [2022-11-03 04:06:51,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:51,664 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:51,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:51,664 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:51,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2022-11-03 04:06:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:52,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:52,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:52,681 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:52,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:52,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [975143230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:52,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:52,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:52,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888366943] [2022-11-03 04:06:52,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:52,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:52,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:52,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:52,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:52,683 INFO L87 Difference]: Start difference. First operand 844 states and 1087 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:52,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:52,987 INFO L93 Difference]: Finished difference Result 1467 states and 1911 transitions. [2022-11-03 04:06:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:52,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:52,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:52,989 INFO L225 Difference]: With dead ends: 1467 [2022-11-03 04:06:52,989 INFO L226 Difference]: Without dead ends: 1057 [2022-11-03 04:06:52,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:52,990 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 473 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:52,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1068 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:52,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-11-03 04:06:53,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 844. [2022-11-03 04:06:53,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2732769044740024) internal successors, (1053), 827 states have internal predecessors, (1053), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:53,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1083 transitions. [2022-11-03 04:06:53,050 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1083 transitions. Word has length 218 [2022-11-03 04:06:53,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:53,051 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1083 transitions. [2022-11-03 04:06:53,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:53,051 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1083 transitions. [2022-11-03 04:06:53,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:53,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:53,052 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:53,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:53,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (78)] Ended with exit code 0 [2022-11-03 04:06:53,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:53,453 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:53,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:53,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1476229771, now seen corresponding path program 1 times [2022-11-03 04:06:53,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:53,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459438184] [2022-11-03 04:06:53,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:53,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:53,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:53,455 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:53,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-11-03 04:06:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:54,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:54,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:54,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:54,270 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:54,271 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:54,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459438184] [2022-11-03 04:06:54,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459438184] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:54,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1209996837] [2022-11-03 04:06:54,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:54,271 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:54,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:54,272 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:54,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2022-11-03 04:06:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:55,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:55,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:55,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:55,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1209996837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:55,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:55,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:55,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373896827] [2022-11-03 04:06:55,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:55,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:55,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:55,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:55,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:55,310 INFO L87 Difference]: Start difference. First operand 844 states and 1083 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:55,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:55,590 INFO L93 Difference]: Finished difference Result 1467 states and 1907 transitions. [2022-11-03 04:06:55,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:55,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:55,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:55,592 INFO L225 Difference]: With dead ends: 1467 [2022-11-03 04:06:55,592 INFO L226 Difference]: Without dead ends: 1061 [2022-11-03 04:06:55,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:55,594 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 465 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:55,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1064 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:55,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-11-03 04:06:55,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 844. [2022-11-03 04:06:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2708585247883917) internal successors, (1051), 827 states have internal predecessors, (1051), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1081 transitions. [2022-11-03 04:06:55,711 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1081 transitions. Word has length 218 [2022-11-03 04:06:55,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:55,712 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1081 transitions. [2022-11-03 04:06:55,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:55,712 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1081 transitions. [2022-11-03 04:06:55,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:55,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:55,715 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:55,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:55,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:56,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:56,122 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:56,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:56,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1493881331, now seen corresponding path program 1 times [2022-11-03 04:06:56,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:56,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348112073] [2022-11-03 04:06:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:56,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:56,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:56,125 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:56,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-11-03 04:06:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:56,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:56,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:56,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:56,937 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:56,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348112073] [2022-11-03 04:06:56,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348112073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:56,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1301814194] [2022-11-03 04:06:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:56,937 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:56,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:56,940 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:56,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2022-11-03 04:06:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:57,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:06:57,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:57,980 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:06:57,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:06:57,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1301814194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:06:57,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:06:57,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:06:57,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266391911] [2022-11-03 04:06:57,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:06:57,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:06:57,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:06:57,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:06:57,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:06:57,982 INFO L87 Difference]: Start difference. First operand 844 states and 1081 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:58,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:06:58,286 INFO L93 Difference]: Finished difference Result 1481 states and 1922 transitions. [2022-11-03 04:06:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:06:58,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:06:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:06:58,287 INFO L225 Difference]: With dead ends: 1481 [2022-11-03 04:06:58,287 INFO L226 Difference]: Without dead ends: 1075 [2022-11-03 04:06:58,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:06:58,288 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 455 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:06:58,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1063 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:06:58,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2022-11-03 04:06:58,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 844. [2022-11-03 04:06:58,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 827 states have (on average 1.2660217654171706) internal successors, (1047), 827 states have internal predecessors, (1047), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:06:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1077 transitions. [2022-11-03 04:06:58,349 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1077 transitions. Word has length 218 [2022-11-03 04:06:58,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:06:58,349 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1077 transitions. [2022-11-03 04:06:58,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:06:58,349 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1077 transitions. [2022-11-03 04:06:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:06:58,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:06:58,352 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:06:58,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (82)] Ended with exit code 0 [2022-11-03 04:06:58,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2022-11-03 04:06:58,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:06:58,752 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:06:58,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:06:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash 240223119, now seen corresponding path program 1 times [2022-11-03 04:06:58,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:06:58,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831571101] [2022-11-03 04:06:58,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:58,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:06:58,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:06:58,755 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:06:58,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-11-03 04:06:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:06:59,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:06:59,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:06:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:06:59,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:06:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:06:59,539 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:06:59,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831571101] [2022-11-03 04:06:59,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831571101] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:06:59,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1204791957] [2022-11-03 04:06:59,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:06:59,540 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:06:59,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:06:59,541 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:06:59,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (84)] Waiting until timeout for monitored process [2022-11-03 04:07:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:00,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:07:00,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:07:00,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:00,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1204791957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:00,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:07:00,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:07:00,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932763530] [2022-11-03 04:07:00,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:00,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:07:00,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:00,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:07:00,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:07:00,604 INFO L87 Difference]: Start difference. First operand 844 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:07:00,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:00,917 INFO L93 Difference]: Finished difference Result 1505 states and 1947 transitions. [2022-11-03 04:07:00,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:00,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:07:00,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:00,919 INFO L225 Difference]: With dead ends: 1505 [2022-11-03 04:07:00,919 INFO L226 Difference]: Without dead ends: 1099 [2022-11-03 04:07:00,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:07:00,920 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 445 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:00,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1062 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:07:00,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2022-11-03 04:07:00,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 848. [2022-11-03 04:07:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 831 states have (on average 1.2623345367027679) internal successors, (1049), 831 states have internal predecessors, (1049), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:07:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1079 transitions. [2022-11-03 04:07:00,989 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1079 transitions. Word has length 218 [2022-11-03 04:07:00,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:00,989 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1079 transitions. [2022-11-03 04:07:00,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:07:00,989 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1079 transitions. [2022-11-03 04:07:00,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:07:00,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:00,992 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:07:01,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (83)] Ended with exit code 0 [2022-11-03 04:07:01,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (84)] Ended with exit code 0 [2022-11-03 04:07:01,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:01,392 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:01,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash -975930607, now seen corresponding path program 1 times [2022-11-03 04:07:01,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:01,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41876332] [2022-11-03 04:07:01,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:01,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:01,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:01,395 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:01,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-11-03 04:07:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:01,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:07:01,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:07:02,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:07:02,212 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:02,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41876332] [2022-11-03 04:07:02,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41876332] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:07:02,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1546527891] [2022-11-03 04:07:02,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:02,212 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:02,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:07:02,213 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:07:02,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2022-11-03 04:07:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:03,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:07:03,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 04:07:03,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:07:03,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1546527891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:07:03,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:07:03,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 16 [2022-11-03 04:07:03,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731283561] [2022-11-03 04:07:03,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:07:03,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:07:03,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:03,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:07:03,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:07:03,315 INFO L87 Difference]: Start difference. First operand 848 states and 1079 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:07:03,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:03,609 INFO L93 Difference]: Finished difference Result 1517 states and 1953 transitions. [2022-11-03 04:07:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:07:03,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 218 [2022-11-03 04:07:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:03,611 INFO L225 Difference]: With dead ends: 1517 [2022-11-03 04:07:03,611 INFO L226 Difference]: Without dead ends: 1111 [2022-11-03 04:07:03,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:07:03,612 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 439 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:03,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1059 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:07:03,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2022-11-03 04:07:03,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 852. [2022-11-03 04:07:03,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 835 states have (on average 1.2586826347305389) internal successors, (1051), 835 states have internal predecessors, (1051), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:07:03,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1081 transitions. [2022-11-03 04:07:03,674 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1081 transitions. Word has length 218 [2022-11-03 04:07:03,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:03,675 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1081 transitions. [2022-11-03 04:07:03,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-03 04:07:03,675 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1081 transitions. [2022-11-03 04:07:03,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-03 04:07:03,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:03,676 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 04:07:03,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:03,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (86)] Ended with exit code 0 [2022-11-03 04:07:04,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:04,077 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:04,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:04,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1393327213, now seen corresponding path program 1 times [2022-11-03 04:07:04,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:04,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234177056] [2022-11-03 04:07:04,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:04,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:04,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:04,079 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:04,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-11-03 04:07:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:04,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:07:04,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:07:04,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:04,903 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:07:04,903 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:04,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234177056] [2022-11-03 04:07:04,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234177056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:07:04,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1684428275] [2022-11-03 04:07:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:04,904 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:04,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:07:04,905 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:07:04,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Waiting until timeout for monitored process [2022-11-03 04:07:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:06,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:06,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:06,161 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:07:06,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:06,245 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:07:06,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1684428275] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:07:06,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484153920] [2022-11-03 04:07:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:06,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:06,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:06,253 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:06,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2022-11-03 04:07:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:06,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 1232 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:07:06,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 46 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 04:07:06,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-11-03 04:07:07,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484153920] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:07:07,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 04:07:07,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 8, 10, 10] total 24 [2022-11-03 04:07:07,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676208967] [2022-11-03 04:07:07,083 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 04:07:07,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-03 04:07:07,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:07,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-03 04:07:07,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-11-03 04:07:07,085 INFO L87 Difference]: Start difference. First operand 852 states and 1081 transitions. Second operand has 24 states, 19 states have (on average 9.894736842105264) internal successors, (188), 24 states have internal predecessors, (188), 11 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 6 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-03 04:07:08,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:08,683 INFO L93 Difference]: Finished difference Result 1273 states and 1622 transitions. [2022-11-03 04:07:08,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 04:07:08,683 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 9.894736842105264) internal successors, (188), 24 states have internal predecessors, (188), 11 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 6 states have call predecessors, (21), 11 states have call successors, (21) Word has length 218 [2022-11-03 04:07:08,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:08,684 INFO L225 Difference]: With dead ends: 1273 [2022-11-03 04:07:08,684 INFO L226 Difference]: Without dead ends: 660 [2022-11-03 04:07:08,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1276 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=334, Invalid=1226, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:07:08,686 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 2743 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:08,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2743 Valid, 1732 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 04:07:08,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-11-03 04:07:08,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 650. [2022-11-03 04:07:08,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 633 states have (on average 1.287519747235387) internal successors, (815), 633 states have internal predecessors, (815), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:07:08,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 845 transitions. [2022-11-03 04:07:08,747 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 845 transitions. Word has length 218 [2022-11-03 04:07:08,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:08,747 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 845 transitions. [2022-11-03 04:07:08,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 9.894736842105264) internal successors, (188), 24 states have internal predecessors, (188), 11 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 6 states have call predecessors, (21), 11 states have call successors, (21) [2022-11-03 04:07:08,747 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 845 transitions. [2022-11-03 04:07:08,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:07:08,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:08,750 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:08,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (88)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:08,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (87)] Ended with exit code 0 [2022-11-03 04:07:09,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2022-11-03 04:07:09,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:09,360 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:09,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:09,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1434225572, now seen corresponding path program 1 times [2022-11-03 04:07:09,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:09,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69444529] [2022-11-03 04:07:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:09,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:09,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:09,362 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:09,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-11-03 04:07:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:10,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:07:10,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:10,996 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 14 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-03 04:07:10,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:11,058 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:11,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69444529] [2022-11-03 04:07:11,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69444529] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:11,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1720657849] [2022-11-03 04:07:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:11,059 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:11,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:07:11,059 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:07:11,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (91)] Waiting until timeout for monitored process [2022-11-03 04:07:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:12,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:07:12,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:13,773 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 261 proven. 50 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:13,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:14,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1720657849] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:14,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073305407] [2022-11-03 04:07:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:14,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:14,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:14,114 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:14,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2022-11-03 04:07:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:14,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:07:14,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 19 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 04:07:16,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:16,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073305407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:16,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:07:16,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2022-11-03 04:07:16,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555117001] [2022-11-03 04:07:16,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:07:16,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 04:07:16,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:16,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 04:07:16,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2022-11-03 04:07:16,566 INFO L87 Difference]: Start difference. First operand 650 states and 845 transitions. Second operand has 19 states, 19 states have (on average 35.0) internal successors, (665), 19 states have internal predecessors, (665), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:07:41,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:07:41,834 INFO L93 Difference]: Finished difference Result 7222 states and 9506 transitions. [2022-11-03 04:07:41,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-11-03 04:07:41,835 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 35.0) internal successors, (665), 19 states have internal predecessors, (665), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:07:41,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:07:41,839 INFO L225 Difference]: With dead ends: 7222 [2022-11-03 04:07:41,839 INFO L226 Difference]: Without dead ends: 6636 [2022-11-03 04:07:41,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1874 GetRequests, 1691 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11833 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=6652, Invalid=27388, Unknown=0, NotChecked=0, Total=34040 [2022-11-03 04:07:41,843 INFO L413 NwaCegarLoop]: 1606 mSDtfsCounter, 10663 mSDsluCounter, 13956 mSDsCounter, 0 mSdLazyCounter, 4551 mSolverCounterSat, 1069 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10663 SdHoareTripleChecker+Valid, 15562 SdHoareTripleChecker+Invalid, 5620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1069 IncrementalHoareTripleChecker+Valid, 4551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:07:41,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10663 Valid, 15562 Invalid, 5620 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1069 Valid, 4551 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-03 04:07:41,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2022-11-03 04:07:42,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 739. [2022-11-03 04:07:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 719 states have (on average 1.2920723226703754) internal successors, (929), 719 states have internal predecessors, (929), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:07:42,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 965 transitions. [2022-11-03 04:07:42,062 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 965 transitions. Word has length 373 [2022-11-03 04:07:42,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:07:42,062 INFO L495 AbstractCegarLoop]: Abstraction has 739 states and 965 transitions. [2022-11-03 04:07:42,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 35.0) internal successors, (665), 19 states have internal predecessors, (665), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:07:42,063 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 965 transitions. [2022-11-03 04:07:42,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:07:42,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:42,067 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:42,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2022-11-03 04:07:42,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (90)] Ended with exit code 0 [2022-11-03 04:07:42,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (91)] Ended with exit code 0 [2022-11-03 04:07:42,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:42,693 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:42,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:42,693 INFO L85 PathProgramCache]: Analyzing trace with hash -674592030, now seen corresponding path program 1 times [2022-11-03 04:07:42,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:07:42,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131266379] [2022-11-03 04:07:42,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:42,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:07:42,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:07:42,697 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:07:42,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-11-03 04:07:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:43,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:07:43,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 18 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-03 04:07:44,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:44,362 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:07:44,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131266379] [2022-11-03 04:07:44,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131266379] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:44,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [854150652] [2022-11-03 04:07:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:44,363 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:07:44,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:07:44,365 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:07:44,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (94)] Waiting until timeout for monitored process [2022-11-03 04:07:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:45,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:07:45,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 253 proven. 58 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:07:47,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:48,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [854150652] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:48,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163538051] [2022-11-03 04:07:48,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:48,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:07:48,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:48,201 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:07:48,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2022-11-03 04:07:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:07:48,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:07:48,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:07:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 27 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-03 04:07:50,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:07:50,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163538051] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:07:50,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:07:50,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:07:50,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089722070] [2022-11-03 04:07:50,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:07:50,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:07:50,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:07:50,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:07:50,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:07:50,671 INFO L87 Difference]: Start difference. First operand 739 states and 965 transitions. Second operand has 20 states, 20 states have (on average 34.15) internal successors, (683), 20 states have internal predecessors, (683), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:08:14,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:14,794 INFO L93 Difference]: Finished difference Result 8324 states and 10975 transitions. [2022-11-03 04:08:14,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2022-11-03 04:08:14,794 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.15) internal successors, (683), 20 states have internal predecessors, (683), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:08:14,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:14,801 INFO L225 Difference]: With dead ends: 8324 [2022-11-03 04:08:14,801 INFO L226 Difference]: Without dead ends: 7659 [2022-11-03 04:08:14,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1869 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11475 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=6603, Invalid=26339, Unknown=0, NotChecked=0, Total=32942 [2022-11-03 04:08:14,810 INFO L413 NwaCegarLoop]: 1319 mSDtfsCounter, 13076 mSDsluCounter, 13135 mSDsCounter, 0 mSdLazyCounter, 4131 mSolverCounterSat, 1166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13076 SdHoareTripleChecker+Valid, 14454 SdHoareTripleChecker+Invalid, 5297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1166 IncrementalHoareTripleChecker+Valid, 4131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:14,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13076 Valid, 14454 Invalid, 5297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1166 Valid, 4131 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 04:08:14,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-11-03 04:08:14,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 773. [2022-11-03 04:08:14,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 753 states have (on average 1.2881806108897742) internal successors, (970), 753 states have internal predecessors, (970), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:08:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1006 transitions. [2022-11-03 04:08:14,981 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1006 transitions. Word has length 373 [2022-11-03 04:08:14,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:14,981 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1006 transitions. [2022-11-03 04:08:14,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.15) internal successors, (683), 20 states have internal predecessors, (683), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:08:14,982 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1006 transitions. [2022-11-03 04:08:14,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:08:14,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:14,983 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:14,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (94)] Ended with exit code 0 [2022-11-03 04:08:15,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:15,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (93)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:15,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:15,584 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:15,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:15,585 INFO L85 PathProgramCache]: Analyzing trace with hash 751728232, now seen corresponding path program 1 times [2022-11-03 04:08:15,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:15,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557350557] [2022-11-03 04:08:15,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:15,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:15,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:15,587 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:15,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-11-03 04:08:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:16,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:08:16,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:17,192 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 20 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-03 04:08:17,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:17,262 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:17,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557350557] [2022-11-03 04:08:17,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557350557] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:17,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [280494531] [2022-11-03 04:08:17,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:17,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:08:17,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:08:17,264 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:08:17,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (97)] Waiting until timeout for monitored process [2022-11-03 04:08:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:18,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:08:18,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 249 proven. 62 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:08:20,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:21,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [280494531] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:21,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259514635] [2022-11-03 04:08:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:21,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:21,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:21,084 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:21,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2022-11-03 04:08:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:21,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:08:21,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:23,331 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 31 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-03 04:08:23,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:23,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259514635] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:23,571 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:08:23,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:08:23,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327147310] [2022-11-03 04:08:23,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:23,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:08:23,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:23,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:08:23,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:08:23,573 INFO L87 Difference]: Start difference. First operand 773 states and 1006 transitions. Second operand has 20 states, 20 states have (on average 34.55) internal successors, (691), 20 states have internal predecessors, (691), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:08:47,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:47,471 INFO L93 Difference]: Finished difference Result 8412 states and 11014 transitions. [2022-11-03 04:08:47,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-11-03 04:08:47,471 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.55) internal successors, (691), 20 states have internal predecessors, (691), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:08:47,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:47,476 INFO L225 Difference]: With dead ends: 8412 [2022-11-03 04:08:47,476 INFO L226 Difference]: Without dead ends: 7725 [2022-11-03 04:08:47,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11575 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=6661, Invalid=26645, Unknown=0, NotChecked=0, Total=33306 [2022-11-03 04:08:47,480 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 13544 mSDsluCounter, 13126 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 1207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13544 SdHoareTripleChecker+Valid, 14488 SdHoareTripleChecker+Invalid, 5592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1207 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:47,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13544 Valid, 14488 Invalid, 5592 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1207 Valid, 4385 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 04:08:47,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7725 states. [2022-11-03 04:08:47,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7725 to 793. [2022-11-03 04:08:47,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 773 states have (on average 1.279430789133247) internal successors, (989), 773 states have internal predecessors, (989), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:08:47,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1025 transitions. [2022-11-03 04:08:47,677 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1025 transitions. Word has length 373 [2022-11-03 04:08:47,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:47,678 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1025 transitions. [2022-11-03 04:08:47,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.55) internal successors, (691), 20 states have internal predecessors, (691), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:08:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1025 transitions. [2022-11-03 04:08:47,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:08:47,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:47,681 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:47,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:47,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (97)] Ended with exit code 0 [2022-11-03 04:08:48,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (96)] Ended with exit code 0 [2022-11-03 04:08:48,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:08:48,305 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:48,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:48,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1668840558, now seen corresponding path program 1 times [2022-11-03 04:08:48,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:08:48,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276191777] [2022-11-03 04:08:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:48,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:08:48,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:08:48,322 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:08:48,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2022-11-03 04:08:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:49,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:08:49,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:49,973 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 22 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-11-03 04:08:49,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:50,042 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:08:50,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276191777] [2022-11-03 04:08:50,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276191777] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:50,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1618715170] [2022-11-03 04:08:50,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:50,043 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:08:50,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:08:50,045 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:08:50,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (100)] Waiting until timeout for monitored process [2022-11-03 04:08:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:51,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:08:51,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 245 proven. 66 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:08:53,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:53,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1618715170] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:53,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658912595] [2022-11-03 04:08:53,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:53,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:53,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:53,802 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:53,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2022-11-03 04:08:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:54,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:08:54,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 17 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-03 04:08:55,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:55,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658912595] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:55,854 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:08:55,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:08:55,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880065450] [2022-11-03 04:08:55,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:55,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:08:55,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:08:55,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:08:55,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:08:55,858 INFO L87 Difference]: Start difference. First operand 793 states and 1025 transitions. Second operand has 20 states, 20 states have (on average 34.05) internal successors, (681), 20 states have internal predecessors, (681), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:09:23,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:23,050 INFO L93 Difference]: Finished difference Result 8336 states and 10877 transitions. [2022-11-03 04:09:23,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2022-11-03 04:09:23,050 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.05) internal successors, (681), 20 states have internal predecessors, (681), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:09:23,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:23,057 INFO L225 Difference]: With dead ends: 8336 [2022-11-03 04:09:23,057 INFO L226 Difference]: Without dead ends: 7619 [2022-11-03 04:09:23,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1870 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11617 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=6661, Invalid=26645, Unknown=0, NotChecked=0, Total=33306 [2022-11-03 04:09:23,060 INFO L413 NwaCegarLoop]: 1169 mSDtfsCounter, 15258 mSDsluCounter, 12391 mSDsCounter, 0 mSdLazyCounter, 3886 mSolverCounterSat, 1302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15258 SdHoareTripleChecker+Valid, 13560 SdHoareTripleChecker+Invalid, 5188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 3886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:23,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15258 Valid, 13560 Invalid, 5188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1302 Valid, 3886 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-03 04:09:23,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7619 states. [2022-11-03 04:09:23,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7619 to 807. [2022-11-03 04:09:23,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 787 states have (on average 1.266836086404066) internal successors, (997), 787 states have internal predecessors, (997), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:09:23,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1033 transitions. [2022-11-03 04:09:23,253 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1033 transitions. Word has length 373 [2022-11-03 04:09:23,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:23,253 INFO L495 AbstractCegarLoop]: Abstraction has 807 states and 1033 transitions. [2022-11-03 04:09:23,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.05) internal successors, (681), 20 states have internal predecessors, (681), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:09:23,253 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1033 transitions. [2022-11-03 04:09:23,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:09:23,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:23,256 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:23,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (100)] Ended with exit code 0 [2022-11-03 04:09:23,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (99)] Ended with exit code 0 [2022-11-03 04:09:23,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:23,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:23,857 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:23,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1657315212, now seen corresponding path program 1 times [2022-11-03 04:09:23,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:23,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625652133] [2022-11-03 04:09:23,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:23,859 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:23,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:23,860 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:23,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2022-11-03 04:09:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:24,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:09:24,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 24 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-03 04:09:25,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:25,557 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:25,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625652133] [2022-11-03 04:09:25,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625652133] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:25,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [529421437] [2022-11-03 04:09:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:25,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:09:25,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:09:25,561 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:09:25,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (103)] Waiting until timeout for monitored process [2022-11-03 04:09:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:27,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:09:27,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:28,917 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 237 proven. 74 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:09:28,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:29,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [529421437] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:29,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423895420] [2022-11-03 04:09:29,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:29,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:29,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:29,423 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:29,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2022-11-03 04:09:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:30,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:09:30,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:31,223 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 15 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-03 04:09:31,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:31,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423895420] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:31,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:31,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:09:31,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792515731] [2022-11-03 04:09:31,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:31,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:09:31,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:31,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:09:31,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:09:31,435 INFO L87 Difference]: Start difference. First operand 807 states and 1033 transitions. Second operand has 20 states, 20 states have (on average 34.35) internal successors, (687), 20 states have internal predecessors, (687), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:09:44,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:44,193 INFO L93 Difference]: Finished difference Result 5569 states and 7191 transitions. [2022-11-03 04:09:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-03 04:09:44,194 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 34.35) internal successors, (687), 20 states have internal predecessors, (687), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:09:44,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:44,198 INFO L225 Difference]: With dead ends: 5569 [2022-11-03 04:09:44,198 INFO L226 Difference]: Without dead ends: 4838 [2022-11-03 04:09:44,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1806 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3918 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=3215, Invalid=10827, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 04:09:44,201 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 14095 mSDsluCounter, 9112 mSDsCounter, 0 mSdLazyCounter, 2741 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14095 SdHoareTripleChecker+Valid, 9857 SdHoareTripleChecker+Invalid, 3617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 2741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:44,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14095 Valid, 9857 Invalid, 3617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 2741 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 04:09:44,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2022-11-03 04:09:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 829. [2022-11-03 04:09:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 809 states have (on average 1.2546353522867737) internal successors, (1015), 809 states have internal predecessors, (1015), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:09:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1051 transitions. [2022-11-03 04:09:44,383 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1051 transitions. Word has length 373 [2022-11-03 04:09:44,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:44,383 INFO L495 AbstractCegarLoop]: Abstraction has 829 states and 1051 transitions. [2022-11-03 04:09:44,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 34.35) internal successors, (687), 20 states have internal predecessors, (687), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:09:44,384 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1051 transitions. [2022-11-03 04:09:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:09:44,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:44,386 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:44,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2022-11-03 04:09:44,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (102)] Ended with exit code 0 [2022-11-03 04:09:44,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (103)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:44,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:09:44,987 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:44,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:44,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1260607878, now seen corresponding path program 1 times [2022-11-03 04:09:44,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:09:44,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948349419] [2022-11-03 04:09:44,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:44,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:09:44,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:09:44,989 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:09:44,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2022-11-03 04:09:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:45,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:09:45,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 32 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-03 04:09:46,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:46,691 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:09:46,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948349419] [2022-11-03 04:09:46,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948349419] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:46,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [656871879] [2022-11-03 04:09:46,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:46,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:09:46,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:09:46,701 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:09:46,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (106)] Waiting until timeout for monitored process [2022-11-03 04:09:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:48,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:09:48,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 233 proven. 78 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:09:50,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:50,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [656871879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:50,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638530981] [2022-11-03 04:09:50,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:50,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:50,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:50,610 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:50,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2022-11-03 04:09:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:51,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:09:51,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:52,811 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 29 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-03 04:09:52,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:53,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638530981] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:53,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:53,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 20 [2022-11-03 04:09:53,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76650323] [2022-11-03 04:09:53,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:53,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:09:53,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:09:53,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:09:53,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:09:53,069 INFO L87 Difference]: Start difference. First operand 829 states and 1051 transitions. Second operand has 20 states, 20 states have (on average 35.55) internal successors, (711), 20 states have internal predecessors, (711), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:10:07,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:07,917 INFO L93 Difference]: Finished difference Result 5881 states and 7484 transitions. [2022-11-03 04:10:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-11-03 04:10:07,918 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 35.55) internal successors, (711), 20 states have internal predecessors, (711), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:10:07,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:07,922 INFO L225 Difference]: With dead ends: 5881 [2022-11-03 04:10:07,922 INFO L226 Difference]: Without dead ends: 5142 [2022-11-03 04:10:07,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1806 GetRequests, 1689 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3929 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=3215, Invalid=10827, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 04:10:07,924 INFO L413 NwaCegarLoop]: 1204 mSDtfsCounter, 12353 mSDsluCounter, 10437 mSDsCounter, 0 mSdLazyCounter, 3258 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12353 SdHoareTripleChecker+Valid, 11641 SdHoareTripleChecker+Invalid, 4102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 3258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:07,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12353 Valid, 11641 Invalid, 4102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 3258 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-03 04:10:07,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2022-11-03 04:10:08,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 893. [2022-11-03 04:10:08,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 873 states have (on average 1.2508591065292096) internal successors, (1092), 873 states have internal predecessors, (1092), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:10:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1128 transitions. [2022-11-03 04:10:08,142 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1128 transitions. Word has length 373 [2022-11-03 04:10:08,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:08,142 INFO L495 AbstractCegarLoop]: Abstraction has 893 states and 1128 transitions. [2022-11-03 04:10:08,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 35.55) internal successors, (711), 20 states have internal predecessors, (711), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:10:08,143 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1128 transitions. [2022-11-03 04:10:08,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:10:08,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:08,146 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:08,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (106)] Ended with exit code 0 [2022-11-03 04:10:08,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:08,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (105)] Ended with exit code 0 [2022-11-03 04:10:08,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:08,747 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:08,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:08,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1203997440, now seen corresponding path program 1 times [2022-11-03 04:10:08,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:08,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667848345] [2022-11-03 04:10:08,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:08,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:08,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:08,750 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:08,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2022-11-03 04:10:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:09,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:10:09,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:10,425 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-03 04:10:10,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:10,514 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:10,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667848345] [2022-11-03 04:10:10,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667848345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:10,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [201541366] [2022-11-03 04:10:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:10,515 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:10:10,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:10:10,516 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:10:10,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (109)] Waiting until timeout for monitored process [2022-11-03 04:10:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:12,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:10:12,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:14,136 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 229 proven. 82 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:10:14,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:14,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [201541366] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:14,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309739146] [2022-11-03 04:10:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:14,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:14,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:10:14,680 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:10:14,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2022-11-03 04:10:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:15,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:10:15,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 263 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-03 04:10:16,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 191 proven. 36 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-03 04:10:17,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309739146] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:10:17,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-03 04:10:17,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9, 9] total 25 [2022-11-03 04:10:17,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423184919] [2022-11-03 04:10:17,385 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-03 04:10:17,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 04:10:17,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:17,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 04:10:17,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2022-11-03 04:10:17,387 INFO L87 Difference]: Start difference. First operand 893 states and 1128 transitions. Second operand has 25 states, 25 states have (on average 33.68) internal successors, (842), 25 states have internal predecessors, (842), 9 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2022-11-03 04:10:23,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:23,710 INFO L93 Difference]: Finished difference Result 4579 states and 5770 transitions. [2022-11-03 04:10:23,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-03 04:10:23,711 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 33.68) internal successors, (842), 25 states have internal predecessors, (842), 9 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) Word has length 373 [2022-11-03 04:10:23,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:23,714 INFO L225 Difference]: With dead ends: 4579 [2022-11-03 04:10:23,714 INFO L226 Difference]: Without dead ends: 4001 [2022-11-03 04:10:23,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1944 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1667 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1720, Invalid=5590, Unknown=0, NotChecked=0, Total=7310 [2022-11-03 04:10:23,715 INFO L413 NwaCegarLoop]: 1067 mSDtfsCounter, 6200 mSDsluCounter, 9585 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6200 SdHoareTripleChecker+Valid, 10652 SdHoareTripleChecker+Invalid, 3174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:23,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6200 Valid, 10652 Invalid, 3174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-03 04:10:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2022-11-03 04:10:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 909. [2022-11-03 04:10:23,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 889 states have (on average 1.247469066366704) internal successors, (1109), 889 states have internal predecessors, (1109), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 04:10:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1145 transitions. [2022-11-03 04:10:23,876 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1145 transitions. Word has length 373 [2022-11-03 04:10:23,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:23,877 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1145 transitions. [2022-11-03 04:10:23,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 33.68) internal successors, (842), 25 states have internal predecessors, (842), 9 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2022-11-03 04:10:23,877 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1145 transitions. [2022-11-03 04:10:23,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:10:23,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:23,879 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:23,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (108)] Ended with exit code 0 [2022-11-03 04:10:24,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (109)] Ended with exit code 0 [2022-11-03 04:10:24,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:24,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:24,480 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:24,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:24,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2139075964, now seen corresponding path program 1 times [2022-11-03 04:10:24,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:24,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459326175] [2022-11-03 04:10:24,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:24,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:24,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:24,483 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:24,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (111)] Waiting until timeout for monitored process [2022-11-03 04:10:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:25,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:10:25,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:27,142 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 225 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:10:27,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:27,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:27,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459326175] [2022-11-03 04:10:27,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459326175] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:27,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1785465131] [2022-11-03 04:10:27,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:27,682 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:10:27,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:10:27,683 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:10:27,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (112)] Waiting until timeout for monitored process [2022-11-03 04:10:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:29,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:10:29,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 225 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:10:31,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:31,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1785465131] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:31,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253593200] [2022-11-03 04:10:31,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:31,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:31,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:10:31,774 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:10:31,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2022-11-03 04:10:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:32,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:10:32,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:34,249 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:10:34,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:34,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253593200] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:34,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:10:34,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 04:10:34,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854768941] [2022-11-03 04:10:34,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:10:34,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:10:34,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:34,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:10:34,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:10:34,315 INFO L87 Difference]: Start difference. First operand 909 states and 1145 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:10:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:38,638 INFO L93 Difference]: Finished difference Result 3575 states and 4503 transitions. [2022-11-03 04:10:38,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-03 04:10:38,639 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:10:38,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:38,641 INFO L225 Difference]: With dead ends: 3575 [2022-11-03 04:10:38,641 INFO L226 Difference]: Without dead ends: 3053 [2022-11-03 04:10:38,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1621 GetRequests, 1543 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=990, Invalid=5172, Unknown=0, NotChecked=0, Total=6162 [2022-11-03 04:10:38,643 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 2376 mSDsluCounter, 9853 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 10589 SdHoareTripleChecker+Invalid, 2579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1137 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:38,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 10589 Invalid, 2579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1316 Invalid, 0 Unknown, 1137 Unchecked, 1.5s Time] [2022-11-03 04:10:38,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2022-11-03 04:10:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 1255. [2022-11-03 04:10:39,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1223 states have (on average 1.2379394930498773) internal successors, (1514), 1223 states have internal predecessors, (1514), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:10:39,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1574 transitions. [2022-11-03 04:10:39,014 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1574 transitions. Word has length 373 [2022-11-03 04:10:39,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:39,014 INFO L495 AbstractCegarLoop]: Abstraction has 1255 states and 1574 transitions. [2022-11-03 04:10:39,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:10:39,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1574 transitions. [2022-11-03 04:10:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:10:39,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:39,016 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:39,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (112)] Ended with exit code 0 [2022-11-03 04:10:39,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2022-11-03 04:10:39,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (111)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:39,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:39,617 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:39,618 INFO L85 PathProgramCache]: Analyzing trace with hash 873719046, now seen corresponding path program 1 times [2022-11-03 04:10:39,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:39,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553384450] [2022-11-03 04:10:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:39,619 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:39,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:39,620 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:39,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (114)] Waiting until timeout for monitored process [2022-11-03 04:10:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:40,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:10:40,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:42,392 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 221 proven. 90 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:10:42,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:42,917 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:42,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553384450] [2022-11-03 04:10:42,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553384450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:42,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [880001271] [2022-11-03 04:10:42,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:42,918 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:10:42,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:10:42,918 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:10:42,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (115)] Waiting until timeout for monitored process [2022-11-03 04:10:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:44,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:10:44,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 221 proven. 90 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:10:46,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:47,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [880001271] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:47,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992095349] [2022-11-03 04:10:47,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:47,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:10:47,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:10:47,109 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:10:47,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2022-11-03 04:10:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:47,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:10:47,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:49,652 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:10:49,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:49,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992095349] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:49,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:10:49,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 04:10:49,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400929985] [2022-11-03 04:10:49,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:10:49,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:10:49,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:10:49,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:10:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:10:49,721 INFO L87 Difference]: Start difference. First operand 1255 states and 1574 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:10:53,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:10:53,464 INFO L93 Difference]: Finished difference Result 3562 states and 4498 transitions. [2022-11-03 04:10:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-03 04:10:53,465 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:10:53,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:10:53,467 INFO L225 Difference]: With dead ends: 3562 [2022-11-03 04:10:53,467 INFO L226 Difference]: Without dead ends: 2702 [2022-11-03 04:10:53,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1607 GetRequests, 1540 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=844, Invalid=3712, Unknown=0, NotChecked=0, Total=4556 [2022-11-03 04:10:53,469 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 2616 mSDsluCounter, 8485 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2622 SdHoareTripleChecker+Valid, 9011 SdHoareTripleChecker+Invalid, 1869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 704 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:10:53,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2622 Valid, 9011 Invalid, 1869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1032 Invalid, 0 Unknown, 704 Unchecked, 1.3s Time] [2022-11-03 04:10:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2022-11-03 04:10:53,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 1263. [2022-11-03 04:10:53,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1231 states have (on average 1.2380178716490657) internal successors, (1524), 1231 states have internal predecessors, (1524), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:10:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1584 transitions. [2022-11-03 04:10:53,776 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1584 transitions. Word has length 373 [2022-11-03 04:10:53,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:10:53,776 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 1584 transitions. [2022-11-03 04:10:53,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:10:53,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1584 transitions. [2022-11-03 04:10:53,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:10:53,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:10:53,780 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:10:53,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (115)] Ended with exit code 0 [2022-11-03 04:10:54,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2022-11-03 04:10:54,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (114)] Forceful destruction successful, exit code 0 [2022-11-03 04:10:54,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:10:54,393 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:10:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:10:54,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1492316024, now seen corresponding path program 1 times [2022-11-03 04:10:54,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:10:54,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767892132] [2022-11-03 04:10:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:54,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:10:54,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:10:54,395 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:10:54,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (117)] Waiting until timeout for monitored process [2022-11-03 04:10:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:55,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:10:55,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:10:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 217 proven. 94 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:10:57,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:10:57,696 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:10:57,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767892132] [2022-11-03 04:10:57,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767892132] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:10:57,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2033904156] [2022-11-03 04:10:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:10:57,696 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:10:57,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:10:57,699 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:10:57,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (118)] Waiting until timeout for monitored process [2022-11-03 04:10:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:10:59,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:10:59,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 217 proven. 94 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:11:01,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:01,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2033904156] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:01,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004232571] [2022-11-03 04:11:01,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:01,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:01,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:01,796 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:11:01,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2022-11-03 04:11:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:02,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:11:02,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:11:04,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:04,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004232571] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:04,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:11:04,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 04:11:04,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248760967] [2022-11-03 04:11:04,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:11:04,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:11:04,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:11:04,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:11:04,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:11:04,294 INFO L87 Difference]: Start difference. First operand 1263 states and 1584 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:11:08,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:08,124 INFO L93 Difference]: Finished difference Result 3209 states and 4053 transitions. [2022-11-03 04:11:08,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-11-03 04:11:08,125 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:11:08,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:08,128 INFO L225 Difference]: With dead ends: 3209 [2022-11-03 04:11:08,128 INFO L226 Difference]: Without dead ends: 2687 [2022-11-03 04:11:08,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1614 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1122 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=915, Invalid=4487, Unknown=0, NotChecked=0, Total=5402 [2022-11-03 04:11:08,129 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 2369 mSDsluCounter, 8737 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2375 SdHoareTripleChecker+Valid, 9232 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 836 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:08,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2375 Valid, 9232 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1046 Invalid, 0 Unknown, 836 Unchecked, 1.3s Time] [2022-11-03 04:11:08,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-11-03 04:11:08,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1267. [2022-11-03 04:11:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 1235 states have (on average 1.237246963562753) internal successors, (1528), 1235 states have internal predecessors, (1528), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:11:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1588 transitions. [2022-11-03 04:11:08,353 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1588 transitions. Word has length 373 [2022-11-03 04:11:08,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:08,353 INFO L495 AbstractCegarLoop]: Abstraction has 1267 states and 1588 transitions. [2022-11-03 04:11:08,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:11:08,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1588 transitions. [2022-11-03 04:11:08,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:11:08,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:08,356 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:08,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (117)] Ended with exit code 0 [2022-11-03 04:11:08,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (118)] Ended with exit code 0 [2022-11-03 04:11:08,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Forceful destruction successful, exit code 0 [2022-11-03 04:11:08,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:08,957 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:08,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:08,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1155288330, now seen corresponding path program 1 times [2022-11-03 04:11:08,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:11:08,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792545943] [2022-11-03 04:11:08,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:08,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:11:08,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:11:08,961 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:11:08,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (120)] Waiting until timeout for monitored process [2022-11-03 04:11:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:09,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:11:09,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 213 proven. 98 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:11:11,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:12,388 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:11:12,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792545943] [2022-11-03 04:11:12,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792545943] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:12,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [520863118] [2022-11-03 04:11:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:12,389 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:11:12,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:11:12,390 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:11:12,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (121)] Waiting until timeout for monitored process [2022-11-03 04:11:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:14,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:11:14,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:16,100 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 213 proven. 98 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:11:16,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:16,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [520863118] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:16,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864819234] [2022-11-03 04:11:16,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:16,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:16,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:16,680 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:11:16,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2022-11-03 04:11:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:17,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:11:17,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 72 proven. 167 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:11:19,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:19,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864819234] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:19,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:11:19,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 20 [2022-11-03 04:11:19,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900330991] [2022-11-03 04:11:19,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:11:19,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:11:19,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:11:19,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:11:19,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:11:19,292 INFO L87 Difference]: Start difference. First operand 1267 states and 1588 transitions. Second operand has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:11:23,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:23,252 INFO L93 Difference]: Finished difference Result 3657 states and 4606 transitions. [2022-11-03 04:11:23,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-11-03 04:11:23,253 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 373 [2022-11-03 04:11:23,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:23,255 INFO L225 Difference]: With dead ends: 3657 [2022-11-03 04:11:23,256 INFO L226 Difference]: Without dead ends: 2797 [2022-11-03 04:11:23,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1610 GetRequests, 1539 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=836, Invalid=4276, Unknown=0, NotChecked=0, Total=5112 [2022-11-03 04:11:23,257 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 1774 mSDsluCounter, 9629 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 10263 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 944 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:23,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 10263 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1106 Invalid, 0 Unknown, 944 Unchecked, 1.3s Time] [2022-11-03 04:11:23,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-11-03 04:11:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1357. [2022-11-03 04:11:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1325 states have (on average 1.2256603773584906) internal successors, (1624), 1325 states have internal predecessors, (1624), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:11:23,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1684 transitions. [2022-11-03 04:11:23,490 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1684 transitions. Word has length 373 [2022-11-03 04:11:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:23,491 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1684 transitions. [2022-11-03 04:11:23,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 31.2) internal successors, (624), 20 states have internal predecessors, (624), 6 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-11-03 04:11:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1684 transitions. [2022-11-03 04:11:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:11:23,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:23,495 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:23,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Forceful destruction successful, exit code 0 [2022-11-03 04:11:23,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (121)] Forceful destruction successful, exit code 0 [2022-11-03 04:11:23,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (120)] Ended with exit code 0 [2022-11-03 04:11:24,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:11:24,109 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:24,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:24,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1257625884, now seen corresponding path program 1 times [2022-11-03 04:11:24,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:11:24,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648642537] [2022-11-03 04:11:24,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:24,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:11:24,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:11:24,111 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:11:24,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (123)] Waiting until timeout for monitored process [2022-11-03 04:11:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:24,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:11:24,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 205 proven. 106 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:11:26,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:27,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:11:27,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648642537] [2022-11-03 04:11:27,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648642537] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:27,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [26272875] [2022-11-03 04:11:27,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:27,534 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:11:27,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:11:27,535 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:11:27,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (124)] Waiting until timeout for monitored process [2022-11-03 04:11:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:29,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:11:29,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:31,292 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 205 proven. 106 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:11:31,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:31,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [26272875] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:31,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839617195] [2022-11-03 04:11:31,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:31,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:31,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:31,891 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:11:31,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Waiting until timeout for monitored process [2022-11-03 04:11:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:32,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:11:32,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 40 proven. 34 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:11:34,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:34,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839617195] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:34,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:11:34,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 04:11:34,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105231576] [2022-11-03 04:11:34,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:11:34,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:11:34,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:11:34,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:11:34,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:11:34,491 INFO L87 Difference]: Start difference. First operand 1357 states and 1684 transitions. Second operand has 13 states, 13 states have (on average 40.53846153846154) internal successors, (527), 13 states have internal predecessors, (527), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:11:41,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:41,575 INFO L93 Difference]: Finished difference Result 6566 states and 8258 transitions. [2022-11-03 04:11:41,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 04:11:41,575 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 40.53846153846154) internal successors, (527), 13 states have internal predecessors, (527), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 04:11:41,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:41,578 INFO L225 Difference]: With dead ends: 6566 [2022-11-03 04:11:41,579 INFO L226 Difference]: Without dead ends: 5297 [2022-11-03 04:11:41,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 04:11:41,580 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 3256 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3256 SdHoareTripleChecker+Valid, 5759 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:41,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 5759 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 04:11:41,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2022-11-03 04:11:41,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 1431. [2022-11-03 04:11:41,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1399 states have (on average 1.2301644031451036) internal successors, (1721), 1399 states have internal predecessors, (1721), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:11:41,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1781 transitions. [2022-11-03 04:11:41,825 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1781 transitions. Word has length 373 [2022-11-03 04:11:41,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:41,826 INFO L495 AbstractCegarLoop]: Abstraction has 1431 states and 1781 transitions. [2022-11-03 04:11:41,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 40.53846153846154) internal successors, (527), 13 states have internal predecessors, (527), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:11:41,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1781 transitions. [2022-11-03 04:11:41,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:11:41,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:41,828 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:41,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (124)] Ended with exit code 0 [2022-11-03 04:11:42,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (123)] Ended with exit code 0 [2022-11-03 04:11:42,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Ended with exit code 0 [2022-11-03 04:11:42,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:42,429 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:11:42,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:11:42,430 INFO L85 PathProgramCache]: Analyzing trace with hash -418616158, now seen corresponding path program 1 times [2022-11-03 04:11:42,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:11:42,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38797760] [2022-11-03 04:11:42,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:42,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:11:42,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:11:42,432 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:11:42,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (126)] Waiting until timeout for monitored process [2022-11-03 04:11:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:43,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:11:43,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 201 proven. 110 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:11:45,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:45,830 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:11:45,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38797760] [2022-11-03 04:11:45,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38797760] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:45,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [802264006] [2022-11-03 04:11:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:45,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:11:45,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:11:45,832 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:11:45,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (127)] Waiting until timeout for monitored process [2022-11-03 04:11:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:47,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 04:11:47,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 201 proven. 110 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:11:49,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:49,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [802264006] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:49,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569684281] [2022-11-03 04:11:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:11:49,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:11:49,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:11:49,975 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:11:49,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2022-11-03 04:11:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:11:50,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:11:50,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:11:53,346 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 20 proven. 54 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:11:53,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:11:53,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569684281] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:11:53,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:11:53,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 04:11:53,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121051231] [2022-11-03 04:11:53,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:11:53,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:11:53,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:11:53,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:11:53,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:11:53,529 INFO L87 Difference]: Start difference. First operand 1431 states and 1781 transitions. Second operand has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:11:59,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:11:59,579 INFO L93 Difference]: Finished difference Result 6862 states and 8638 transitions. [2022-11-03 04:11:59,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 04:11:59,579 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 04:11:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:11:59,582 INFO L225 Difference]: With dead ends: 6862 [2022-11-03 04:11:59,582 INFO L226 Difference]: Without dead ends: 5549 [2022-11-03 04:11:59,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 04:11:59,584 INFO L413 NwaCegarLoop]: 867 mSDtfsCounter, 3026 mSDsluCounter, 4485 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3026 SdHoareTripleChecker+Valid, 5352 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:11:59,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3026 Valid, 5352 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 04:11:59,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2022-11-03 04:11:59,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 1485. [2022-11-03 04:11:59,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1453 states have (on average 1.2319339298004128) internal successors, (1790), 1453 states have internal predecessors, (1790), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:11:59,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1850 transitions. [2022-11-03 04:11:59,827 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1850 transitions. Word has length 373 [2022-11-03 04:11:59,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:11:59,827 INFO L495 AbstractCegarLoop]: Abstraction has 1485 states and 1850 transitions. [2022-11-03 04:11:59,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.23076923076923) internal successors, (536), 13 states have internal predecessors, (536), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:11:59,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1850 transitions. [2022-11-03 04:11:59,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:11:59,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:11:59,830 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:11:59,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (126)] Ended with exit code 0 [2022-11-03 04:12:00,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Ended with exit code 0 [2022-11-03 04:12:00,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (127)] Ended with exit code 0 [2022-11-03 04:12:00,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:12:00,431 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:00,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:00,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1190934498, now seen corresponding path program 1 times [2022-11-03 04:12:00,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:00,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119963324] [2022-11-03 04:12:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:00,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:00,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:00,438 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:00,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (129)] Waiting until timeout for monitored process [2022-11-03 04:12:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:01,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:12:01,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 197 proven. 114 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:12:02,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:03,183 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:03,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119963324] [2022-11-03 04:12:03,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119963324] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:03,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1856177216] [2022-11-03 04:12:03,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:03,183 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:12:03,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:12:03,184 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:12:03,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (130)] Waiting until timeout for monitored process [2022-11-03 04:12:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:04,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:12:04,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 197 proven. 114 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-03 04:12:06,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:06,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1856177216] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:06,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708610458] [2022-11-03 04:12:06,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:06,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:12:06,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:12:06,848 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:12:06,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Waiting until timeout for monitored process [2022-11-03 04:12:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:07,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:12:07,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 12 proven. 62 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:12:10,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:10,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708610458] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:10,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:12:10,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 13 [2022-11-03 04:12:10,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834842509] [2022-11-03 04:12:10,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:12:10,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:12:10,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:10,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:12:10,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:12:10,334 INFO L87 Difference]: Start difference. First operand 1485 states and 1850 transitions. Second operand has 13 states, 13 states have (on average 41.46153846153846) internal successors, (539), 13 states have internal predecessors, (539), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:12:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:16,130 INFO L93 Difference]: Finished difference Result 6970 states and 8737 transitions. [2022-11-03 04:12:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-03 04:12:16,130 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 41.46153846153846) internal successors, (539), 13 states have internal predecessors, (539), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 373 [2022-11-03 04:12:16,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:16,135 INFO L225 Difference]: With dead ends: 6970 [2022-11-03 04:12:16,135 INFO L226 Difference]: Without dead ends: 5623 [2022-11-03 04:12:16,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1601 GetRequests, 1541 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=948, Invalid=2712, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 04:12:16,137 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 3183 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 5265 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:16,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 5265 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 04:12:16,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5623 states. [2022-11-03 04:12:16,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5623 to 1455. [2022-11-03 04:12:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1423 states have (on average 1.2262825017568517) internal successors, (1745), 1423 states have internal predecessors, (1745), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:12:16,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1805 transitions. [2022-11-03 04:12:16,381 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1805 transitions. Word has length 373 [2022-11-03 04:12:16,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:16,381 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1805 transitions. [2022-11-03 04:12:16,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.46153846153846) internal successors, (539), 13 states have internal predecessors, (539), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-03 04:12:16,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1805 transitions. [2022-11-03 04:12:16,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:12:16,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:16,384 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:16,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (129)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:16,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Forceful destruction successful, exit code 0 [2022-11-03 04:12:16,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (130)] Ended with exit code 0 [2022-11-03 04:12:16,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,131 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,130 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:12:16,984 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:16,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:16,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1558994142, now seen corresponding path program 1 times [2022-11-03 04:12:16,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:16,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086536627] [2022-11-03 04:12:16,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:16,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:16,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:16,987 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:16,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (132)] Waiting until timeout for monitored process [2022-11-03 04:12:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:17,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:12:17,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 68 proven. 171 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:12:20,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:20,142 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:20,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2086536627] [2022-11-03 04:12:20,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2086536627] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:20,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1843459856] [2022-11-03 04:12:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:20,143 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:12:20,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:12:20,144 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:12:20,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (133)] Waiting until timeout for monitored process [2022-11-03 04:12:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:21,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:12:21,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:24,486 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 60 proven. 179 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:12:24,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:24,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1843459856] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:24,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467186178] [2022-11-03 04:12:24,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:24,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:12:24,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:12:24,591 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:12:24,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Waiting until timeout for monitored process [2022-11-03 04:12:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:25,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:12:25,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 38 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:12:28,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:28,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467186178] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:28,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:12:28,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:12:28,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279620624] [2022-11-03 04:12:28,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:12:28,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:12:28,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:28,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:12:28,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:12:28,269 INFO L87 Difference]: Start difference. First operand 1455 states and 1805 transitions. Second operand has 35 states, 35 states have (on average 23.4) internal successors, (819), 35 states have internal predecessors, (819), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:12:41,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:12:41,118 INFO L93 Difference]: Finished difference Result 5461 states and 6966 transitions. [2022-11-03 04:12:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-11-03 04:12:41,118 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.4) internal successors, (819), 35 states have internal predecessors, (819), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:12:41,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:12:41,121 INFO L225 Difference]: With dead ends: 5461 [2022-11-03 04:12:41,121 INFO L226 Difference]: Without dead ends: 4110 [2022-11-03 04:12:41,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1333 GetRequests, 1216 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3158 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=2630, Invalid=11412, Unknown=0, NotChecked=0, Total=14042 [2022-11-03 04:12:41,123 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 11172 mSDsluCounter, 19911 mSDsCounter, 0 mSdLazyCounter, 3173 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11172 SdHoareTripleChecker+Valid, 20722 SdHoareTripleChecker+Invalid, 7290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 3173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3709 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:12:41,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11172 Valid, 20722 Invalid, 7290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 3173 Invalid, 0 Unknown, 3709 Unchecked, 3.5s Time] [2022-11-03 04:12:41,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4110 states. [2022-11-03 04:12:41,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4110 to 1479. [2022-11-03 04:12:41,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1447 states have (on average 1.2239115411195578) internal successors, (1771), 1447 states have internal predecessors, (1771), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:12:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1831 transitions. [2022-11-03 04:12:41,352 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1831 transitions. Word has length 373 [2022-11-03 04:12:41,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:12:41,353 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 1831 transitions. [2022-11-03 04:12:41,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.4) internal successors, (819), 35 states have internal predecessors, (819), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:12:41,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1831 transitions. [2022-11-03 04:12:41,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:12:41,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:12:41,357 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:12:41,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (132)] Ended with exit code 0 [2022-11-03 04:12:41,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Ended with exit code 0 [2022-11-03 04:12:41,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (133)] Ended with exit code 0 [2022-11-03 04:12:41,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 132 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,134 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,133 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:12:41,958 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:12:41,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:12:41,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1579862814, now seen corresponding path program 1 times [2022-11-03 04:12:41,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:12:41,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000913977] [2022-11-03 04:12:41,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:41,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:12:41,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:12:41,960 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:12:41,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (135)] Waiting until timeout for monitored process [2022-11-03 04:12:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:42,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:12:42,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:45,034 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 56 proven. 183 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:12:45,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:45,117 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:12:45,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000913977] [2022-11-03 04:12:45,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000913977] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:45,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1163492325] [2022-11-03 04:12:45,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:45,118 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:12:45,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:12:45,119 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:12:45,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (136)] Waiting until timeout for monitored process [2022-11-03 04:12:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:46,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:12:46,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:49,501 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 48 proven. 191 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:12:49,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:49,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1163492325] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:49,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614972775] [2022-11-03 04:12:49,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:12:49,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:12:49,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:12:49,606 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:12:49,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Waiting until timeout for monitored process [2022-11-03 04:12:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:12:50,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:12:50,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:12:52,260 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 40 proven. 34 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:12:52,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:12:52,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614972775] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:12:52,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:12:52,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:12:52,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084182032] [2022-11-03 04:12:52,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:12:52,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:12:52,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:12:52,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:12:52,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1466, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:12:52,540 INFO L87 Difference]: Start difference. First operand 1479 states and 1831 transitions. Second operand has 35 states, 35 states have (on average 23.514285714285716) internal successors, (823), 35 states have internal predecessors, (823), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:13:14,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:14,426 INFO L93 Difference]: Finished difference Result 8983 states and 11569 transitions. [2022-11-03 04:13:14,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-11-03 04:13:14,427 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.514285714285716) internal successors, (823), 35 states have internal predecessors, (823), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:13:14,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:14,431 INFO L225 Difference]: With dead ends: 8983 [2022-11-03 04:13:14,431 INFO L226 Difference]: Without dead ends: 7610 [2022-11-03 04:13:14,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1372 GetRequests, 1218 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6780 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=4482, Invalid=19698, Unknown=0, NotChecked=0, Total=24180 [2022-11-03 04:13:14,433 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 12882 mSDsluCounter, 23998 mSDsCounter, 0 mSdLazyCounter, 3636 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12882 SdHoareTripleChecker+Valid, 25019 SdHoareTripleChecker+Invalid, 9410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 3636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5024 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:14,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12882 Valid, 25019 Invalid, 9410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [750 Valid, 3636 Invalid, 0 Unknown, 5024 Unchecked, 4.3s Time] [2022-11-03 04:13:14,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2022-11-03 04:13:14,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 1513. [2022-11-03 04:13:14,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1481 states have (on average 1.2241728561782579) internal successors, (1813), 1481 states have internal predecessors, (1813), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:13:14,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1873 transitions. [2022-11-03 04:13:14,708 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1873 transitions. Word has length 373 [2022-11-03 04:13:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:14,708 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 1873 transitions. [2022-11-03 04:13:14,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.514285714285716) internal successors, (823), 35 states have internal predecessors, (823), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:13:14,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1873 transitions. [2022-11-03 04:13:14,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:13:14,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:14,710 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:14,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Forceful destruction successful, exit code 0 [2022-11-03 04:13:14,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (135)] Forceful destruction successful, exit code 0 [2022-11-03 04:13:15,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (136)] Ended with exit code 0 [2022-11-03 04:13:15,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 137 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,135 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,136 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:13:15,311 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:15,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:15,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1459915940, now seen corresponding path program 1 times [2022-11-03 04:13:15,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:13:15,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405214354] [2022-11-03 04:13:15,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:15,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:13:15,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:13:15,314 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:13:15,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (138)] Waiting until timeout for monitored process [2022-11-03 04:13:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:16,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:13:16,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 52 proven. 187 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:13:18,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:18,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:13:18,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405214354] [2022-11-03 04:13:18,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [405214354] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:13:18,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1568845055] [2022-11-03 04:13:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:18,534 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:13:18,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:13:18,535 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:13:18,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (139)] Waiting until timeout for monitored process [2022-11-03 04:13:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:20,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:13:20,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:22,842 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 44 proven. 195 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:13:22,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:22,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1568845055] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:13:22,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941846545] [2022-11-03 04:13:22,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:22,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:13:22,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:13:22,959 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:13:22,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Waiting until timeout for monitored process [2022-11-03 04:13:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:23,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:13:23,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:26,417 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 38 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:13:26,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:26,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941846545] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:13:26,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:13:26,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:13:26,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703503477] [2022-11-03 04:13:26,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:13:26,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:13:26,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:13:26,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:13:26,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:13:26,683 INFO L87 Difference]: Start difference. First operand 1513 states and 1873 transitions. Second operand has 35 states, 35 states have (on average 23.62857142857143) internal successors, (827), 35 states have internal predecessors, (827), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:13:37,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:13:37,912 INFO L93 Difference]: Finished difference Result 5433 states and 6876 transitions. [2022-11-03 04:13:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-11-03 04:13:37,913 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.62857142857143) internal successors, (827), 35 states have internal predecessors, (827), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:13:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:13:37,915 INFO L225 Difference]: With dead ends: 5433 [2022-11-03 04:13:37,915 INFO L226 Difference]: Without dead ends: 4034 [2022-11-03 04:13:37,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1338 GetRequests, 1225 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2854 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=2568, Invalid=10542, Unknown=0, NotChecked=0, Total=13110 [2022-11-03 04:13:37,918 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 12135 mSDsluCounter, 14926 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12135 SdHoareTripleChecker+Valid, 15607 SdHoareTripleChecker+Invalid, 6124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3624 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:13:37,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12135 Valid, 15607 Invalid, 6124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2096 Invalid, 0 Unknown, 3624 Unchecked, 2.5s Time] [2022-11-03 04:13:37,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2022-11-03 04:13:38,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 1509. [2022-11-03 04:13:38,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1477 states have (on average 1.2234258632362898) internal successors, (1807), 1477 states have internal predecessors, (1807), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:13:38,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1867 transitions. [2022-11-03 04:13:38,182 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1867 transitions. Word has length 373 [2022-11-03 04:13:38,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:13:38,182 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 1867 transitions. [2022-11-03 04:13:38,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.62857142857143) internal successors, (827), 35 states have internal predecessors, (827), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:13:38,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1867 transitions. [2022-11-03 04:13:38,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:13:38,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:13:38,184 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:13:38,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (139)] Forceful destruction successful, exit code 0 [2022-11-03 04:13:38,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (140)] Forceful destruction successful, exit code 0 [2022-11-03 04:13:38,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (138)] Ended with exit code 0 [2022-11-03 04:13:38,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 139 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,140 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,138 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:13:38,785 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:13:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:13:38,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1155061592, now seen corresponding path program 1 times [2022-11-03 04:13:38,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:13:38,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979202569] [2022-11-03 04:13:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:38,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:13:38,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:13:38,788 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:13:38,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (141)] Waiting until timeout for monitored process [2022-11-03 04:13:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:39,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:13:39,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:41,979 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 40 proven. 199 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:13:41,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:42,070 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:13:42,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979202569] [2022-11-03 04:13:42,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979202569] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:13:42,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [425092901] [2022-11-03 04:13:42,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:42,071 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:13:42,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:13:42,072 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:13:42,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (142)] Waiting until timeout for monitored process [2022-11-03 04:13:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:43,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:13:43,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 24 proven. 215 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:13:46,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:46,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [425092901] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:13:46,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454433098] [2022-11-03 04:13:46,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:13:46,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:13:46,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:13:46,666 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:13:46,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Waiting until timeout for monitored process [2022-11-03 04:13:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:13:47,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:13:47,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:13:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 32 proven. 42 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:13:50,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:13:50,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454433098] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:13:50,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:13:50,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:13:50,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372334123] [2022-11-03 04:13:50,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:13:50,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:13:50,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:13:50,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:13:50,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1464, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:13:50,509 INFO L87 Difference]: Start difference. First operand 1509 states and 1867 transitions. Second operand has 35 states, 35 states have (on average 23.97142857142857) internal successors, (839), 35 states have internal predecessors, (839), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:14:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:02,575 INFO L93 Difference]: Finished difference Result 5534 states and 6939 transitions. [2022-11-03 04:14:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-11-03 04:14:02,576 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 23.97142857142857) internal successors, (839), 35 states have internal predecessors, (839), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:14:02,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:02,578 INFO L225 Difference]: With dead ends: 5534 [2022-11-03 04:14:02,578 INFO L226 Difference]: Without dead ends: 4149 [2022-11-03 04:14:02,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1226 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2579 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=2375, Invalid=9835, Unknown=0, NotChecked=0, Total=12210 [2022-11-03 04:14:02,580 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 10016 mSDsluCounter, 21298 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10016 SdHoareTripleChecker+Valid, 22167 SdHoareTripleChecker+Invalid, 7142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3322 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:02,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10016 Valid, 22167 Invalid, 7142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 3335 Invalid, 0 Unknown, 3322 Unchecked, 3.6s Time] [2022-11-03 04:14:02,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2022-11-03 04:14:02,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 1559. [2022-11-03 04:14:02,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1527 states have (on average 1.223968565815324) internal successors, (1869), 1527 states have internal predecessors, (1869), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:14:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 1929 transitions. [2022-11-03 04:14:02,844 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 1929 transitions. Word has length 373 [2022-11-03 04:14:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:02,845 INFO L495 AbstractCegarLoop]: Abstraction has 1559 states and 1929 transitions. [2022-11-03 04:14:02,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 23.97142857142857) internal successors, (839), 35 states have internal predecessors, (839), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:14:02,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 1929 transitions. [2022-11-03 04:14:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:14:02,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:02,847 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:02,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (141)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:03,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (143)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:03,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (142)] Ended with exit code 0 [2022-11-03 04:14:03,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 141 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,143 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,142 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:14:03,448 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:03,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:03,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1180447510, now seen corresponding path program 1 times [2022-11-03 04:14:03,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:14:03,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493187217] [2022-11-03 04:14:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:03,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:14:03,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:14:03,451 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:14:03,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (144)] Waiting until timeout for monitored process [2022-11-03 04:14:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:04,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:14:04,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:06,551 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 203 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:14:06,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:06,628 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:14:06,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493187217] [2022-11-03 04:14:06,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493187217] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:06,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1387709148] [2022-11-03 04:14:06,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:06,628 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:14:06,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:14:06,629 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:14:06,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (145)] Waiting until timeout for monitored process [2022-11-03 04:14:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:08,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:14:08,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:10,573 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 36 proven. 203 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:14:10,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:10,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1387709148] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:10,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685828661] [2022-11-03 04:14:10,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:10,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:14:10,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:14:10,617 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:14:10,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Waiting until timeout for monitored process [2022-11-03 04:14:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:11,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 04:14:11,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:13,369 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 32 proven. 42 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:14:13,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:13,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685828661] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:13,570 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:14:13,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 22 [2022-11-03 04:14:13,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988315873] [2022-11-03 04:14:13,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:14:13,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 04:14:13,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:14:13,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 04:14:13,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:14:13,572 INFO L87 Difference]: Start difference. First operand 1559 states and 1929 transitions. Second operand has 22 states, 22 states have (on average 24.136363636363637) internal successors, (531), 22 states have internal predecessors, (531), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:14:20,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:20,168 INFO L93 Difference]: Finished difference Result 4541 states and 5651 transitions. [2022-11-03 04:14:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-03 04:14:20,168 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 24.136363636363637) internal successors, (531), 22 states have internal predecessors, (531), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 373 [2022-11-03 04:14:20,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:20,171 INFO L225 Difference]: With dead ends: 4541 [2022-11-03 04:14:20,171 INFO L226 Difference]: Without dead ends: 3108 [2022-11-03 04:14:20,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1312 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1637, Invalid=5335, Unknown=0, NotChecked=0, Total=6972 [2022-11-03 04:14:20,172 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 6893 mSDsluCounter, 8846 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6893 SdHoareTripleChecker+Valid, 9469 SdHoareTripleChecker+Invalid, 2609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1055 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:20,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6893 Valid, 9469 Invalid, 2609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1356 Invalid, 0 Unknown, 1055 Unchecked, 1.7s Time] [2022-11-03 04:14:20,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2022-11-03 04:14:20,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 1525. [2022-11-03 04:14:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1493 states have (on average 1.2190221031480242) internal successors, (1820), 1493 states have internal predecessors, (1820), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:14:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1880 transitions. [2022-11-03 04:14:20,416 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1880 transitions. Word has length 373 [2022-11-03 04:14:20,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:20,416 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 1880 transitions. [2022-11-03 04:14:20,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 24.136363636363637) internal successors, (531), 22 states have internal predecessors, (531), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:14:20,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1880 transitions. [2022-11-03 04:14:20,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:14:20,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:20,420 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:20,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (144)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:20,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (145)] Ended with exit code 0 [2022-11-03 04:14:20,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (146)] Ended with exit code 0 [2022-11-03 04:14:21,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 144 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,145 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,146 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:14:21,021 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:21,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:21,021 INFO L85 PathProgramCache]: Analyzing trace with hash 913980248, now seen corresponding path program 1 times [2022-11-03 04:14:21,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:14:21,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67644845] [2022-11-03 04:14:21,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:21,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:14:21,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:14:21,024 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:14:21,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (147)] Waiting until timeout for monitored process [2022-11-03 04:14:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:21,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:14:21,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 32 proven. 207 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:14:24,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:24,317 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:14:24,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67644845] [2022-11-03 04:14:24,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67644845] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:24,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [177564440] [2022-11-03 04:14:24,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:24,318 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:14:24,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:14:24,319 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:14:24,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (148)] Waiting until timeout for monitored process [2022-11-03 04:14:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:26,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:14:26,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:28,757 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 20 proven. 219 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:14:28,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:28,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [177564440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:28,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177730407] [2022-11-03 04:14:28,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:28,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:14:28,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:14:28,901 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:14:28,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Waiting until timeout for monitored process [2022-11-03 04:14:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:29,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:14:29,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:32,678 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 12 proven. 62 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:14:32,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:32,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177730407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:32,981 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:14:32,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 35 [2022-11-03 04:14:32,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107205056] [2022-11-03 04:14:32,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:14:32,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:14:32,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:14:32,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:14:32,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1457, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:14:32,984 INFO L87 Difference]: Start difference. First operand 1525 states and 1880 transitions. Second operand has 35 states, 35 states have (on average 24.314285714285713) internal successors, (851), 35 states have internal predecessors, (851), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:14:45,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:45,331 INFO L93 Difference]: Finished difference Result 5179 states and 6453 transitions. [2022-11-03 04:14:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-11-03 04:14:45,332 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 24.314285714285713) internal successors, (851), 35 states have internal predecessors, (851), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 373 [2022-11-03 04:14:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:45,334 INFO L225 Difference]: With dead ends: 5179 [2022-11-03 04:14:45,334 INFO L226 Difference]: Without dead ends: 3780 [2022-11-03 04:14:45,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1344 GetRequests, 1228 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3062 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=2669, Invalid=11137, Unknown=0, NotChecked=0, Total=13806 [2022-11-03 04:14:45,336 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 9254 mSDsluCounter, 18057 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9254 SdHoareTripleChecker+Valid, 18733 SdHoareTripleChecker+Invalid, 7253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3776 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:45,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9254 Valid, 18733 Invalid, 7253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 3079 Invalid, 0 Unknown, 3776 Unchecked, 3.3s Time] [2022-11-03 04:14:45,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2022-11-03 04:14:45,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 1523. [2022-11-03 04:14:45,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1491 states have (on average 1.21663313212609) internal successors, (1814), 1491 states have internal predecessors, (1814), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:14:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1874 transitions. [2022-11-03 04:14:45,588 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1874 transitions. Word has length 373 [2022-11-03 04:14:45,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:45,588 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1874 transitions. [2022-11-03 04:14:45,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 24.314285714285713) internal successors, (851), 35 states have internal predecessors, (851), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-03 04:14:45,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1874 transitions. [2022-11-03 04:14:45,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:14:45,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:45,593 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:45,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (147)] Ended with exit code 0 [2022-11-03 04:14:45,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (148)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:46,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (149)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:46,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 147 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,148 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,149 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:14:46,193 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:46,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:46,194 INFO L85 PathProgramCache]: Analyzing trace with hash -428972010, now seen corresponding path program 1 times [2022-11-03 04:14:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:14:46,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070168822] [2022-11-03 04:14:46,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:46,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:14:46,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:14:46,196 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:14:46,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (150)] Waiting until timeout for monitored process [2022-11-03 04:14:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:47,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-03 04:14:47,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 16 proven. 223 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:14:49,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:49,608 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:14:49,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070168822] [2022-11-03 04:14:49,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070168822] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:49,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1847718422] [2022-11-03 04:14:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:49,608 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:14:49,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:14:49,609 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:14:49,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (151)] Waiting until timeout for monitored process [2022-11-03 04:14:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:51,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 04:14:51,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 16 proven. 223 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:14:53,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:53,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1847718422] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:53,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368982542] [2022-11-03 04:14:53,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:53,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:14:53,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:14:53,649 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:14:53,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Waiting until timeout for monitored process [2022-11-03 04:14:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:14:54,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:14:54,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 12 proven. 62 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-03 04:14:57,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:14:57,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368982542] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:14:57,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:14:57,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 7] total 22 [2022-11-03 04:14:57,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672418884] [2022-11-03 04:14:57,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:14:57,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 04:14:57,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:14:57,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 04:14:57,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2022-11-03 04:14:57,681 INFO L87 Difference]: Start difference. First operand 1523 states and 1874 transitions. Second operand has 22 states, 22 states have (on average 24.59090909090909) internal successors, (541), 22 states have internal predecessors, (541), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:15:02,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:02,857 INFO L93 Difference]: Finished difference Result 4089 states and 5048 transitions. [2022-11-03 04:15:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-03 04:15:02,857 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 24.59090909090909) internal successors, (541), 22 states have internal predecessors, (541), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 373 [2022-11-03 04:15:02,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:02,860 INFO L225 Difference]: With dead ends: 4089 [2022-11-03 04:15:02,860 INFO L226 Difference]: Without dead ends: 2694 [2022-11-03 04:15:02,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1296 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1159, Invalid=3811, Unknown=0, NotChecked=0, Total=4970 [2022-11-03 04:15:02,862 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 6110 mSDsluCounter, 6594 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6110 SdHoareTripleChecker+Valid, 7081 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1295 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:02,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6110 Valid, 7081 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1092 Invalid, 0 Unknown, 1295 Unchecked, 1.4s Time] [2022-11-03 04:15:02,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-11-03 04:15:03,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1523. [2022-11-03 04:15:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1491 states have (on average 1.21663313212609) internal successors, (1814), 1491 states have internal predecessors, (1814), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-03 04:15:03,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 1874 transitions. [2022-11-03 04:15:03,138 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 1874 transitions. Word has length 373 [2022-11-03 04:15:03,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:03,138 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 1874 transitions. [2022-11-03 04:15:03,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 24.59090909090909) internal successors, (541), 22 states have internal predecessors, (541), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2022-11-03 04:15:03,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 1874 transitions. [2022-11-03 04:15:03,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-03 04:15:03,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:03,141 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:03,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (152)] Ended with exit code 0 [2022-11-03 04:15:03,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (150)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:03,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (151)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:03,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 152 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,150 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,151 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 04:15:03,742 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:03,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:03,742 INFO L85 PathProgramCache]: Analyzing trace with hash -821999020, now seen corresponding path program 1 times [2022-11-03 04:15:03,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 04:15:03,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21675048] [2022-11-03 04:15:03,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:03,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 04:15:03,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 04:15:03,744 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 04:15:03,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (153)] Waiting until timeout for monitored process [2022-11-03 04:15:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:04,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 04:15:04,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 27 proven. 236 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-11-03 04:15:07,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:15:08,107 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 04:15:08,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21675048] [2022-11-03 04:15:08,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21675048] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:15:08,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2113364027] [2022-11-03 04:15:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:08,108 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 04:15:08,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 04:15:08,109 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 04:15:08,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (154)] Waiting until timeout for monitored process [2022-11-03 04:15:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:09,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 04:15:09,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 8 proven. 231 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-03 04:15:12,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:15:12,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2113364027] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:15:12,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38963170] [2022-11-03 04:15:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:12,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:12,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:15:12,669 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:15:12,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672e6d23-97f8-4678-9e7e-264050f8c589/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (155)] Waiting until timeout for monitored process [2022-11-03 04:15:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:13,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 2074 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:15:13,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 8 proven. 82 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-11-03 04:15:14,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:15:15,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38963170] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:15:15,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:15:15,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 14, 9] total 36 [2022-11-03 04:15:15,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920033961] [2022-11-03 04:15:15,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:15:15,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-03 04:15:15,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 04:15:15,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-03 04:15:15,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1405, Unknown=0, NotChecked=0, Total=1560 [2022-11-03 04:15:15,021 INFO L87 Difference]: Start difference. First operand 1523 states and 1874 transitions. Second operand has 36 states, 35 states have (on average 19.8) internal successors, (693), 36 states have internal predecessors, (693), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21)