./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF --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 32bit --witnessprinter.graph.data.programhash 491770f936b11f9c816b5badf382b4c7289d40b54afe46cb60faa6a0ff48de66 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:49:22,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:49:22,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:49:22,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:49:22,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:49:22,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:49:22,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:49:22,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:49:22,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:49:22,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:49:22,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:49:22,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:49:22,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:49:22,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:49:22,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:49:22,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:49:22,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:49:22,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:49:22,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:49:22,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:49:22,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:49:22,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:49:22,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:49:22,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:49:22,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:49:22,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:49:22,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:49:22,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:49:22,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:49:22,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:49:22,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:49:22,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:49:22,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:49:22,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:49:22,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:49:22,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:49:22,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:49:22,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:49:22,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:49:22,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:49:22,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:49:22,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:49:22,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:49:22,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:49:22,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:49:22,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:49:22,523 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:49:22,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:49:22,523 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:49:22,523 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:49:22,524 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:49:22,524 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:49:22,525 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:49:22,525 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:49:22,526 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:49:22,526 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:49:22,526 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:49:22,526 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:49:22,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:49:22,527 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:49:22,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:49:22,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:49:22,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:49:22,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:49:22,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:49:22,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:49:22,529 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:49:22,529 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:49:22,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:49:22,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:49:22,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:49:22,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:49:22,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:49:22,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:49:22,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:49:22,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:49:22,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:49:22,533 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:49:22,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:49:22,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:49:22,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:49:22,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:49:22,535 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 491770f936b11f9c816b5badf382b4c7289d40b54afe46cb60faa6a0ff48de66 [2021-11-12 22:49:22,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:49:22,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:49:22,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:49:22,881 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:49:22,882 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:49:22,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M1.c [2021-11-12 22:49:22,952 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/data/d06e34920/a4d09ac403aa450ea8ad09f5ef188a85/FLAG0ae297caf [2021-11-12 22:49:23,649 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:49:23,650 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M1.c [2021-11-12 22:49:23,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/data/d06e34920/a4d09ac403aa450ea8ad09f5ef188a85/FLAG0ae297caf [2021-11-12 22:49:23,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/data/d06e34920/a4d09ac403aa450ea8ad09f5ef188a85 [2021-11-12 22:49:23,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:49:23,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:49:23,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:49:23,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:49:23,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:49:23,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:49:23" (1/1) ... [2021-11-12 22:49:23,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f93332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:23, skipping insertion in model container [2021-11-12 22:49:23,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:49:23" (1/1) ... [2021-11-12 22:49:23,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:49:23,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:49:24,120 WARN L228 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_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M1.c[1762,1775] [2021-11-12 22:49:24,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:49:24,530 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:49:24,549 WARN L228 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_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M1.c[1762,1775] [2021-11-12 22:49:24,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:49:24,871 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:49:24,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24 WrapperNode [2021-11-12 22:49:24,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:49:24,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:49:24,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:49:24,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:49:24,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:24,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:25,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:49:25,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:49:25,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:49:25,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:49:25,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:25,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:25,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:25,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:25,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:25,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:25,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:25,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:49:25,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:49:25,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:49:25,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:49:25,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (1/1) ... [2021-11-12 22:49:25,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:49:25,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:49:25,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:49:25,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:49:25,631 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-11-12 22:49:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-11-12 22:49:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-11-12 22:49:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-11-12 22:49:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:49:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-11-12 22:49:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-11-12 22:49:25,632 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-11-12 22:49:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-11-12 22:49:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2021-11-12 22:49:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2021-11-12 22:49:25,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-11-12 22:49:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-11-12 22:49:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:49:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-11-12 22:49:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-11-12 22:49:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-11-12 22:49:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-11-12 22:49:25,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-11-12 22:49:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-11-12 22:49:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-11-12 22:49:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-11-12 22:49:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:49:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2021-11-12 22:49:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2021-11-12 22:49:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:49:25,635 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-11-12 22:49:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-11-12 22:49:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-11-12 22:49:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-11-12 22:49:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-11-12 22:49:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-11-12 22:49:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:49:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:49:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:49:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:49:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:49:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-11-12 22:49:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-11-12 22:49:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-11-12 22:49:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-11-12 22:49:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-11-12 22:49:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-11-12 22:49:35,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:49:35,625 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:49:35,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:49:35 BoogieIcfgContainer [2021-11-12 22:49:35,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:49:35,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:49:35,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:49:35,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:49:35,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:49:23" (1/3) ... [2021-11-12 22:49:35,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fe327b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:49:35, skipping insertion in model container [2021-11-12 22:49:35,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:49:24" (2/3) ... [2021-11-12 22:49:35,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fe327b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:49:35, skipping insertion in model container [2021-11-12 22:49:35,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:49:35" (3/3) ... [2021-11-12 22:49:35,646 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_nxt.3.M1.c [2021-11-12 22:49:35,652 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:49:35,653 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:49:35,732 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:49:35,744 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:49:35,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:49:35,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 1893 states, 1101 states have (on average 1.2052679382379654) internal successors, (1327), 1105 states have internal predecessors, (1327), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (772), 770 states have call predecessors, (772), 772 states have call successors, (772) [2021-11-12 22:49:35,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2021-11-12 22:49:35,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:49:35,888 INFO L514 BasicCegarLoop]: trace histogram [209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:49:35,889 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:49:35,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:49:35,895 INFO L85 PathProgramCache]: Analyzing trace with hash -249054823, now seen corresponding path program 1 times [2021-11-12 22:49:35,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:49:35,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673554235] [2021-11-12 22:49:35,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:49:35,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:49:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:49:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 43472 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43472 trivial. 0 not checked. [2021-11-12 22:49:37,583 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:49:37,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673554235] [2021-11-12 22:49:37,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673554235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:49:37,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:49:37,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 22:49:37,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427554942] [2021-11-12 22:49:37,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:49:37,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:49:37,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:49:37,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:49:37,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:49:37,637 INFO L87 Difference]: Start difference. First operand has 1893 states, 1101 states have (on average 1.2052679382379654) internal successors, (1327), 1105 states have internal predecessors, (1327), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (772), 770 states have call predecessors, (772), 772 states have call successors, (772) Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2021-11-12 22:49:39,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:41,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:42,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:49:42,204 INFO L93 Difference]: Finished difference Result 3316 states and 5086 transitions. [2021-11-12 22:49:42,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:49:42,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) Word has length 882 [2021-11-12 22:49:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:49:42,263 INFO L225 Difference]: With dead ends: 3316 [2021-11-12 22:49:42,263 INFO L226 Difference]: Without dead ends: 1891 [2021-11-12 22:49:42,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:49:42,297 INFO L933 BasicCegarLoop]: 2841 mSDtfsCounter, 29 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4163.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 5633 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.86ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4295.71ms IncrementalHoareTripleChecker+Time [2021-11-12 22:49:42,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 5633 Invalid, 52 Unknown, 0 Unchecked, 47.86ms Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 2 Unknown, 0 Unchecked, 4295.71ms Time] [2021-11-12 22:49:42,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2021-11-12 22:49:43,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1891. [2021-11-12 22:49:43,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1891 states, 1100 states have (on average 1.2036363636363636) internal successors, (1324), 1104 states have internal predecessors, (1324), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (771), 769 states have call predecessors, (771), 771 states have call successors, (771) [2021-11-12 22:49:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2867 transitions. [2021-11-12 22:49:43,039 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2867 transitions. Word has length 882 [2021-11-12 22:49:43,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:49:43,044 INFO L470 AbstractCegarLoop]: Abstraction has 1891 states and 2867 transitions. [2021-11-12 22:49:43,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2021-11-12 22:49:43,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2867 transitions. [2021-11-12 22:49:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2021-11-12 22:49:43,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:49:43,087 INFO L514 BasicCegarLoop]: trace histogram [209, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:49:43,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:49:43,087 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:49:43,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:49:43,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1570982521, now seen corresponding path program 1 times [2021-11-12 22:49:43,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:49:43,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491555382] [2021-11-12 22:49:43,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:49:43,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:49:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:49:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 43474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43474 trivial. 0 not checked. [2021-11-12 22:49:44,471 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:49:44,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491555382] [2021-11-12 22:49:44,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491555382] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:49:44,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:49:44,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-12 22:49:44,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433764416] [2021-11-12 22:49:44,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:49:44,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:49:44,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:49:44,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:49:44,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:49:44,479 INFO L87 Difference]: Start difference. First operand 1891 states and 2867 transitions. Second operand has 5 states, 4 states have (on average 63.0) internal successors, (252), 5 states have internal predecessors, (252), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2021-11-12 22:49:46,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:48,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:49:54,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:49:54,945 INFO L93 Difference]: Finished difference Result 3550 states and 5403 transitions. [2021-11-12 22:49:54,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:49:54,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 63.0) internal successors, (252), 5 states have internal predecessors, (252), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) Word has length 888 [2021-11-12 22:49:54,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:49:54,970 INFO L225 Difference]: With dead ends: 3550 [2021-11-12 22:49:54,970 INFO L226 Difference]: Without dead ends: 2129 [2021-11-12 22:49:54,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:49:54,983 INFO L933 BasicCegarLoop]: 3163 mSDtfsCounter, 2486 mSDsluCounter, 4073 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 35 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9164.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2486 SdHoareTripleChecker+Valid, 7192 SdHoareTripleChecker+Invalid, 2173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.52ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10132.78ms IncrementalHoareTripleChecker+Time [2021-11-12 22:49:54,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2486 Valid, 7192 Invalid, 2173 Unknown, 0 Unchecked, 46.52ms Time], IncrementalHoareTripleChecker [35 Valid, 2136 Invalid, 2 Unknown, 0 Unchecked, 10132.78ms Time] [2021-11-12 22:49:54,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2021-11-12 22:49:55,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 2129. [2021-11-12 22:49:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 1275 states have (on average 1.223529411764706) internal successors, (1560), 1279 states have internal predecessors, (1560), 829 states have call successors, (829), 24 states have call predecessors, (829), 24 states have return successors, (828), 826 states have call predecessors, (828), 828 states have call successors, (828) [2021-11-12 22:49:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 3217 transitions. [2021-11-12 22:49:55,387 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 3217 transitions. Word has length 888 [2021-11-12 22:49:55,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:49:55,391 INFO L470 AbstractCegarLoop]: Abstraction has 2129 states and 3217 transitions. [2021-11-12 22:49:55,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 63.0) internal successors, (252), 5 states have internal predecessors, (252), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2021-11-12 22:49:55,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 3217 transitions. [2021-11-12 22:49:55,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2021-11-12 22:49:55,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:49:55,425 INFO L514 BasicCegarLoop]: trace histogram [209, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:49:55,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 22:49:55,426 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:49:55,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:49:55,427 INFO L85 PathProgramCache]: Analyzing trace with hash 274831389, now seen corresponding path program 1 times [2021-11-12 22:49:55,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:49:55,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814512932] [2021-11-12 22:49:55,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:49:55,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:49:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:49:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 43474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43474 trivial. 0 not checked. [2021-11-12 22:49:56,320 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:49:56,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814512932] [2021-11-12 22:49:56,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814512932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:49:56,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:49:56,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-12 22:49:56,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792499513] [2021-11-12 22:49:56,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:49:56,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:49:56,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:49:56,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:49:56,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:49:56,325 INFO L87 Difference]: Start difference. First operand 2129 states and 3217 transitions. Second operand has 6 states, 6 states have (on average 42.333333333333336) internal successors, (254), 5 states have internal predecessors, (254), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2021-11-12 22:49:58,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:01,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:16,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:50:16,065 INFO L93 Difference]: Finished difference Result 3705 states and 5614 transitions. [2021-11-12 22:50:16,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:50:16,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 42.333333333333336) internal successors, (254), 5 states have internal predecessors, (254), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) Word has length 892 [2021-11-12 22:50:16,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:50:16,099 INFO L225 Difference]: With dead ends: 3705 [2021-11-12 22:50:16,099 INFO L226 Difference]: Without dead ends: 3684 [2021-11-12 22:50:16,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:50:16,103 INFO L933 BasicCegarLoop]: 2735 mSDtfsCounter, 2107 mSDsluCounter, 7503 mSDsCounter, 0 mSdLazyCounter, 4792 mSolverCounterSat, 1656 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16386.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2606 SdHoareTripleChecker+Valid, 10210 SdHoareTripleChecker+Invalid, 6450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 95.54ms SdHoareTripleChecker+Time, 1656 IncrementalHoareTripleChecker+Valid, 4792 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19212.33ms IncrementalHoareTripleChecker+Time [2021-11-12 22:50:16,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2606 Valid, 10210 Invalid, 6450 Unknown, 0 Unchecked, 95.54ms Time], IncrementalHoareTripleChecker [1656 Valid, 4792 Invalid, 2 Unknown, 0 Unchecked, 19212.33ms Time] [2021-11-12 22:50:16,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2021-11-12 22:50:16,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 2996. [2021-11-12 22:50:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2996 states, 1811 states have (on average 1.2302595251242407) internal successors, (2228), 1816 states have internal predecessors, (2228), 1149 states have call successors, (1149), 34 states have call predecessors, (1149), 35 states have return successors, (1171), 1146 states have call predecessors, (1171), 1148 states have call successors, (1171) [2021-11-12 22:50:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 4548 transitions. [2021-11-12 22:50:16,573 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 4548 transitions. Word has length 892 [2021-11-12 22:50:16,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:50:16,575 INFO L470 AbstractCegarLoop]: Abstraction has 2996 states and 4548 transitions. [2021-11-12 22:50:16,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.333333333333336) internal successors, (254), 5 states have internal predecessors, (254), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2021-11-12 22:50:16,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 4548 transitions. [2021-11-12 22:50:16,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 931 [2021-11-12 22:50:16,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:50:16,592 INFO L514 BasicCegarLoop]: trace histogram [210, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:50:16,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 22:50:16,592 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:50:16,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:50:16,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1854661798, now seen corresponding path program 1 times [2021-11-12 22:50:16,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:50:16,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668961352] [2021-11-12 22:50:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:16,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:50:16,834 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:50:16,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1540580372] [2021-11-12 22:50:16,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:16,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:50:16,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:50:16,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:50:16,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-12 22:50:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:50:17,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 3035 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:50:17,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:50:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 43900 backedges. 832 proven. 0 refuted. 0 times theorem prover too weak. 43068 trivial. 0 not checked. [2021-11-12 22:50:19,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:50:22,158 INFO L134 CoverageAnalysis]: Checked inductivity of 43900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43900 trivial. 0 not checked. [2021-11-12 22:50:22,158 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:50:22,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668961352] [2021-11-12 22:50:22,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:50:22,165 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540580372] [2021-11-12 22:50:22,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540580372] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:50:22,166 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:50:22,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:50:22,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477185273] [2021-11-12 22:50:22,168 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:50:22,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:50:22,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:50:22,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:50:22,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:50:22,174 INFO L87 Difference]: Start difference. First operand 2996 states and 4548 transitions. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 3 states have call successors, (231), 3 states have call predecessors, (231), 3 states have return successors, (230), 3 states have call predecessors, (230), 3 states have call successors, (230) [2021-11-12 22:50:24,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:26,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:32,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:50:32,885 INFO L93 Difference]: Finished difference Result 6806 states and 10353 transitions. [2021-11-12 22:50:32,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:50:32,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 3 states have call successors, (231), 3 states have call predecessors, (231), 3 states have return successors, (230), 3 states have call predecessors, (230), 3 states have call successors, (230) Word has length 930 [2021-11-12 22:50:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:50:32,927 INFO L225 Difference]: With dead ends: 6806 [2021-11-12 22:50:32,927 INFO L226 Difference]: Without dead ends: 4282 [2021-11-12 22:50:32,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1859 GetRequests, 1853 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:50:32,943 INFO L933 BasicCegarLoop]: 3692 mSDtfsCounter, 3150 mSDsluCounter, 6575 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 1159 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8855.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3156 SdHoareTripleChecker+Valid, 10189 SdHoareTripleChecker+Invalid, 2492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.88ms SdHoareTripleChecker+Time, 1159 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10370.67ms IncrementalHoareTripleChecker+Time [2021-11-12 22:50:32,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3156 Valid, 10189 Invalid, 2492 Unknown, 0 Unchecked, 66.88ms Time], IncrementalHoareTripleChecker [1159 Valid, 1331 Invalid, 2 Unknown, 0 Unchecked, 10370.67ms Time] [2021-11-12 22:50:32,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2021-11-12 22:50:33,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4220. [2021-11-12 22:50:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4220 states, 2608 states have (on average 1.2611196319018405) internal successors, (3289), 2668 states have internal predecessors, (3289), 1543 states have call successors, (1543), 63 states have call predecessors, (1543), 68 states have return successors, (1573), 1490 states have call predecessors, (1573), 1542 states have call successors, (1573) [2021-11-12 22:50:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4220 states to 4220 states and 6405 transitions. [2021-11-12 22:50:33,610 INFO L78 Accepts]: Start accepts. Automaton has 4220 states and 6405 transitions. Word has length 930 [2021-11-12 22:50:33,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:50:33,613 INFO L470 AbstractCegarLoop]: Abstraction has 4220 states and 6405 transitions. [2021-11-12 22:50:33,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 3 states have call successors, (231), 3 states have call predecessors, (231), 3 states have return successors, (230), 3 states have call predecessors, (230), 3 states have call successors, (230) [2021-11-12 22:50:33,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4220 states and 6405 transitions. [2021-11-12 22:50:33,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 931 [2021-11-12 22:50:33,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:50:33,633 INFO L514 BasicCegarLoop]: trace histogram [210, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:50:33,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:50:33,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:50:33,859 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:50:33,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:50:33,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2004742914, now seen corresponding path program 1 times [2021-11-12 22:50:33,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:50:33,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802684686] [2021-11-12 22:50:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:33,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:50:34,061 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:50:34,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183001787] [2021-11-12 22:50:34,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:34,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:50:34,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:50:34,063 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:50:34,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-12 22:50:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:50:34,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 3036 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:50:35,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:50:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 43900 backedges. 832 proven. 0 refuted. 0 times theorem prover too weak. 43068 trivial. 0 not checked. [2021-11-12 22:50:36,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:50:38,673 INFO L134 CoverageAnalysis]: Checked inductivity of 43900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43900 trivial. 0 not checked. [2021-11-12 22:50:38,673 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:50:38,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802684686] [2021-11-12 22:50:38,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:50:38,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183001787] [2021-11-12 22:50:38,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183001787] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:50:38,675 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:50:38,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:50:38,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645456351] [2021-11-12 22:50:38,677 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:50:38,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:50:38,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:50:38,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:50:38,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:50:38,681 INFO L87 Difference]: Start difference. First operand 4220 states and 6405 transitions. Second operand has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 3 states have call successors, (231), 3 states have call predecessors, (231), 3 states have return successors, (230), 3 states have call predecessors, (230), 3 states have call successors, (230) [2021-11-12 22:50:40,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:42,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:50:49,708 INFO L93 Difference]: Finished difference Result 10553 states and 16026 transitions. [2021-11-12 22:50:49,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:50:49,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 3 states have call successors, (231), 3 states have call predecessors, (231), 3 states have return successors, (230), 3 states have call predecessors, (230), 3 states have call successors, (230) Word has length 930 [2021-11-12 22:50:49,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:50:49,769 INFO L225 Difference]: With dead ends: 10553 [2021-11-12 22:50:49,770 INFO L226 Difference]: Without dead ends: 6908 [2021-11-12 22:50:49,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1859 GetRequests, 1853 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:50:49,787 INFO L933 BasicCegarLoop]: 4004 mSDtfsCounter, 2081 mSDsluCounter, 10071 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8883.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 13970 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.73ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10635.69ms IncrementalHoareTripleChecker+Time [2021-11-12 22:50:49,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2085 Valid, 13970 Invalid, 1406 Unknown, 0 Unchecked, 35.73ms Time], IncrementalHoareTripleChecker [13 Valid, 1391 Invalid, 2 Unknown, 0 Unchecked, 10635.69ms Time] [2021-11-12 22:50:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6908 states. [2021-11-12 22:50:50,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6908 to 6547. [2021-11-12 22:50:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6547 states, 4098 states have (on average 1.2662274280136652) internal successors, (5189), 4170 states have internal predecessors, (5189), 2336 states have call successors, (2336), 102 states have call predecessors, (2336), 112 states have return successors, (2414), 2278 states have call predecessors, (2414), 2334 states have call successors, (2414) [2021-11-12 22:50:50,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6547 states to 6547 states and 9939 transitions. [2021-11-12 22:50:50,740 INFO L78 Accepts]: Start accepts. Automaton has 6547 states and 9939 transitions. Word has length 930 [2021-11-12 22:50:50,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:50:50,742 INFO L470 AbstractCegarLoop]: Abstraction has 6547 states and 9939 transitions. [2021-11-12 22:50:50,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 3 states have call successors, (231), 3 states have call predecessors, (231), 3 states have return successors, (230), 3 states have call predecessors, (230), 3 states have call successors, (230) [2021-11-12 22:50:50,743 INFO L276 IsEmpty]: Start isEmpty. Operand 6547 states and 9939 transitions. [2021-11-12 22:50:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 932 [2021-11-12 22:50:50,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:50:50,762 INFO L514 BasicCegarLoop]: trace histogram [210, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:50:50,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:50:50,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:50:50,978 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:50:50,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:50:50,979 INFO L85 PathProgramCache]: Analyzing trace with hash 496151068, now seen corresponding path program 1 times [2021-11-12 22:50:50,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:50:50,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33367001] [2021-11-12 22:50:50,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:50,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:50:51,285 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:50:51,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1065116536] [2021-11-12 22:50:51,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:50:51,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:50:51,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:50:51,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:50:51,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-12 22:50:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:50:52,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:50:52,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:50:53,744 INFO L134 CoverageAnalysis]: Checked inductivity of 43900 backedges. 832 proven. 0 refuted. 0 times theorem prover too weak. 43068 trivial. 0 not checked. [2021-11-12 22:50:53,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:50:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 43900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43900 trivial. 0 not checked. [2021-11-12 22:50:55,838 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:50:55,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33367001] [2021-11-12 22:50:55,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:50:55,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065116536] [2021-11-12 22:50:55,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065116536] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:50:55,839 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:50:55,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:50:55,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680280445] [2021-11-12 22:50:55,839 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:50:55,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:50:55,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:50:55,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:50:55,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:50:55,845 INFO L87 Difference]: Start difference. First operand 6547 states and 9939 transitions. Second operand has 7 states, 7 states have (on average 41.42857142857143) internal successors, (290), 7 states have internal predecessors, (290), 3 states have call successors, (231), 3 states have call predecessors, (231), 3 states have return successors, (230), 3 states have call predecessors, (230), 3 states have call successors, (230) [2021-11-12 22:50:57,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:50:59,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:08,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:51:08,874 INFO L93 Difference]: Finished difference Result 13949 states and 21222 transitions. [2021-11-12 22:51:08,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:51:08,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 41.42857142857143) internal successors, (290), 7 states have internal predecessors, (290), 3 states have call successors, (231), 3 states have call predecessors, (231), 3 states have return successors, (230), 3 states have call predecessors, (230), 3 states have call successors, (230) Word has length 931 [2021-11-12 22:51:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:51:08,941 INFO L225 Difference]: With dead ends: 13949 [2021-11-12 22:51:08,941 INFO L226 Difference]: Without dead ends: 8304 [2021-11-12 22:51:08,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1861 GetRequests, 1855 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:51:08,967 INFO L933 BasicCegarLoop]: 3913 mSDtfsCounter, 2677 mSDsluCounter, 10251 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 922 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10431.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 14052 SdHoareTripleChecker+Invalid, 3095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.35ms SdHoareTripleChecker+Time, 922 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12610.89ms IncrementalHoareTripleChecker+Time [2021-11-12 22:51:08,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2682 Valid, 14052 Invalid, 3095 Unknown, 0 Unchecked, 35.35ms Time], IncrementalHoareTripleChecker [922 Valid, 2171 Invalid, 2 Unknown, 0 Unchecked, 12610.89ms Time] [2021-11-12 22:51:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8304 states. [2021-11-12 22:51:10,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8304 to 7003. [2021-11-12 22:51:10,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7003 states, 4364 states have (on average 1.2660403299725023) internal successors, (5525), 4460 states have internal predecessors, (5525), 2518 states have call successors, (2518), 109 states have call predecessors, (2518), 120 states have return successors, (2616), 2438 states have call predecessors, (2616), 2516 states have call successors, (2616) [2021-11-12 22:51:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 10659 transitions. [2021-11-12 22:51:10,431 INFO L78 Accepts]: Start accepts. Automaton has 7003 states and 10659 transitions. Word has length 931 [2021-11-12 22:51:10,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:51:10,433 INFO L470 AbstractCegarLoop]: Abstraction has 7003 states and 10659 transitions. [2021-11-12 22:51:10,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.42857142857143) internal successors, (290), 7 states have internal predecessors, (290), 3 states have call successors, (231), 3 states have call predecessors, (231), 3 states have return successors, (230), 3 states have call predecessors, (230), 3 states have call successors, (230) [2021-11-12 22:51:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand 7003 states and 10659 transitions. [2021-11-12 22:51:10,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2021-11-12 22:51:10,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:51:10,510 INFO L514 BasicCegarLoop]: trace histogram [210, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:51:10,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:10,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:10,722 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:51:10,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:51:10,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2032773889, now seen corresponding path program 1 times [2021-11-12 22:51:10,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:51:10,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173097229] [2021-11-12 22:51:10,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:10,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:51:10,905 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:51:10,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1129176552] [2021-11-12 22:51:10,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:10,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:10,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:51:10,910 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:51:10,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-12 22:51:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:11,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 3047 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:51:11,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 43900 backedges. 832 proven. 0 refuted. 0 times theorem prover too weak. 43068 trivial. 0 not checked. [2021-11-12 22:51:13,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 43900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43900 trivial. 0 not checked. [2021-11-12 22:51:15,287 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:51:15,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173097229] [2021-11-12 22:51:15,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:51:15,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129176552] [2021-11-12 22:51:15,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129176552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:51:15,288 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:51:15,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 22:51:15,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031836020] [2021-11-12 22:51:15,289 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:51:15,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:51:15,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:51:15,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:51:15,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:51:15,294 INFO L87 Difference]: Start difference. First operand 7003 states and 10659 transitions. Second operand has 7 states, 7 states have (on average 41.714285714285715) internal successors, (292), 7 states have internal predecessors, (292), 3 states have call successors, (233), 3 states have call predecessors, (233), 3 states have return successors, (232), 3 states have call predecessors, (232), 3 states have call successors, (232) [2021-11-12 22:51:17,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:19,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:30,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:51:30,044 INFO L93 Difference]: Finished difference Result 12258 states and 18720 transitions. [2021-11-12 22:51:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:51:30,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 41.714285714285715) internal successors, (292), 7 states have internal predecessors, (292), 3 states have call successors, (233), 3 states have call predecessors, (233), 3 states have return successors, (232), 3 states have call predecessors, (232), 3 states have call successors, (232) Word has length 934 [2021-11-12 22:51:30,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:51:30,081 INFO L225 Difference]: With dead ends: 12258 [2021-11-12 22:51:30,081 INFO L226 Difference]: Without dead ends: 6103 [2021-11-12 22:51:30,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1867 GetRequests, 1861 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:51:30,196 INFO L933 BasicCegarLoop]: 3101 mSDtfsCounter, 2714 mSDsluCounter, 6356 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 988 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11557.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 9375 SdHoareTripleChecker+Invalid, 3123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.10ms SdHoareTripleChecker+Time, 988 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14402.25ms IncrementalHoareTripleChecker+Time [2021-11-12 22:51:30,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2715 Valid, 9375 Invalid, 3123 Unknown, 0 Unchecked, 31.10ms Time], IncrementalHoareTripleChecker [988 Valid, 2133 Invalid, 2 Unknown, 0 Unchecked, 14402.25ms Time] [2021-11-12 22:51:30,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6103 states. [2021-11-12 22:51:30,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6103 to 5802. [2021-11-12 22:51:30,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 3633 states have (on average 1.2546105147261217) internal successors, (4558), 3654 states have internal predecessors, (4558), 2069 states have call successors, (2069), 92 states have call predecessors, (2069), 99 states have return successors, (2141), 2059 states have call predecessors, (2141), 2067 states have call successors, (2141) [2021-11-12 22:51:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 8768 transitions. [2021-11-12 22:51:30,983 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 8768 transitions. Word has length 934 [2021-11-12 22:51:30,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:51:30,984 INFO L470 AbstractCegarLoop]: Abstraction has 5802 states and 8768 transitions. [2021-11-12 22:51:30,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.714285714285715) internal successors, (292), 7 states have internal predecessors, (292), 3 states have call successors, (233), 3 states have call predecessors, (233), 3 states have return successors, (232), 3 states have call predecessors, (232), 3 states have call successors, (232) [2021-11-12 22:51:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 8768 transitions. [2021-11-12 22:51:31,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2021-11-12 22:51:31,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:51:31,014 INFO L514 BasicCegarLoop]: trace histogram [210, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:51:31,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:31,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:31,230 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:51:31,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:51:31,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1851533251, now seen corresponding path program 1 times [2021-11-12 22:51:31,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:51:31,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429395315] [2021-11-12 22:51:31,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:31,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:51:31,456 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:51:31,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553368168] [2021-11-12 22:51:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:31,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:31,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:51:31,458 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:51:31,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 22:51:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:32,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 3046 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:51:32,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:33,658 INFO L134 CoverageAnalysis]: Checked inductivity of 43902 backedges. 836 proven. 0 refuted. 0 times theorem prover too weak. 43066 trivial. 0 not checked. [2021-11-12 22:51:33,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:35,838 INFO L134 CoverageAnalysis]: Checked inductivity of 43902 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43899 trivial. 0 not checked. [2021-11-12 22:51:35,838 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:51:35,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429395315] [2021-11-12 22:51:35,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:51:35,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553368168] [2021-11-12 22:51:35,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553368168] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:51:35,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:51:35,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2021-11-12 22:51:35,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228692053] [2021-11-12 22:51:35,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:51:35,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:51:35,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:51:35,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:51:35,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:51:35,842 INFO L87 Difference]: Start difference. First operand 5802 states and 8768 transitions. Second operand has 5 states, 5 states have (on average 55.8) internal successors, (279), 5 states have internal predecessors, (279), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2021-11-12 22:51:37,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:39,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:47,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:51:47,350 INFO L93 Difference]: Finished difference Result 10180 states and 15531 transitions. [2021-11-12 22:51:47,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:51:47,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 5 states have internal predecessors, (279), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 934 [2021-11-12 22:51:47,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:51:47,380 INFO L225 Difference]: With dead ends: 10180 [2021-11-12 22:51:47,380 INFO L226 Difference]: Without dead ends: 5806 [2021-11-12 22:51:47,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1867 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:51:47,396 INFO L933 BasicCegarLoop]: 3243 mSDtfsCounter, 1447 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 32 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9357.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 8223 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.98ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11216.57ms IncrementalHoareTripleChecker+Time [2021-11-12 22:51:47,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 8223 Invalid, 1733 Unknown, 0 Unchecked, 19.98ms Time], IncrementalHoareTripleChecker [32 Valid, 1699 Invalid, 2 Unknown, 0 Unchecked, 11216.57ms Time] [2021-11-12 22:51:47,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5806 states. [2021-11-12 22:51:48,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5806 to 5802. [2021-11-12 22:51:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5802 states, 3633 states have (on average 1.2535094962840627) internal successors, (4554), 3654 states have internal predecessors, (4554), 2069 states have call successors, (2069), 92 states have call predecessors, (2069), 99 states have return successors, (2141), 2059 states have call predecessors, (2141), 2067 states have call successors, (2141) [2021-11-12 22:51:48,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5802 states to 5802 states and 8764 transitions. [2021-11-12 22:51:48,122 INFO L78 Accepts]: Start accepts. Automaton has 5802 states and 8764 transitions. Word has length 934 [2021-11-12 22:51:48,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:51:48,123 INFO L470 AbstractCegarLoop]: Abstraction has 5802 states and 8764 transitions. [2021-11-12 22:51:48,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 5 states have internal predecessors, (279), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2021-11-12 22:51:48,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5802 states and 8764 transitions. [2021-11-12 22:51:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 935 [2021-11-12 22:51:48,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:51:48,143 INFO L514 BasicCegarLoop]: trace histogram [210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:51:48,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:51:48,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:48,358 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:51:48,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:51:48,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2089473187, now seen corresponding path program 1 times [2021-11-12 22:51:48,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:51:48,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149182127] [2021-11-12 22:51:48,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:48,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:51:48,518 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:51:48,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799308786] [2021-11-12 22:51:48,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:51:48,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:51:48,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:51:48,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:51:48,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-12 22:51:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:51:49,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 3048 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:51:49,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:51:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 43904 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 43070 trivial. 0 not checked. [2021-11-12 22:51:50,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:51:52,927 INFO L134 CoverageAnalysis]: Checked inductivity of 43904 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 43899 trivial. 0 not checked. [2021-11-12 22:51:52,927 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:51:52,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149182127] [2021-11-12 22:51:52,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:51:52,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799308786] [2021-11-12 22:51:52,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799308786] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:51:52,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:51:52,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2021-11-12 22:51:52,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100931590] [2021-11-12 22:51:52,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:51:52,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:51:52,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:51:52,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:51:52,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:51:52,930 INFO L87 Difference]: Start difference. First operand 5802 states and 8764 transitions. Second operand has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2021-11-12 22:51:54,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:51:56,997 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:02,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:02,154 INFO L93 Difference]: Finished difference Result 10763 states and 16257 transitions. [2021-11-12 22:52:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:52:02,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 934 [2021-11-12 22:52:02,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:02,182 INFO L225 Difference]: With dead ends: 10763 [2021-11-12 22:52:02,182 INFO L226 Difference]: Without dead ends: 5983 [2021-11-12 22:52:02,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1867 GetRequests, 1860 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:52:02,197 INFO L933 BasicCegarLoop]: 3098 mSDtfsCounter, 758 mSDsluCounter, 8014 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7510.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 11021 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.99ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8973.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:02,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 11021 Invalid, 982 Unknown, 0 Unchecked, 16.99ms Time], IncrementalHoareTripleChecker [3 Valid, 977 Invalid, 2 Unknown, 0 Unchecked, 8973.75ms Time] [2021-11-12 22:52:02,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2021-11-12 22:52:03,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 5962. [2021-11-12 22:52:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 3742 states have (on average 1.2541421699625868) internal successors, (4693), 3765 states have internal predecessors, (4693), 2113 states have call successors, (2113), 98 states have call predecessors, (2113), 106 states have return successors, (2186), 2102 states have call predecessors, (2186), 2111 states have call successors, (2186) [2021-11-12 22:52:03,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 8992 transitions. [2021-11-12 22:52:03,061 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 8992 transitions. Word has length 934 [2021-11-12 22:52:03,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:03,062 INFO L470 AbstractCegarLoop]: Abstraction has 5962 states and 8992 transitions. [2021-11-12 22:52:03,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2021-11-12 22:52:03,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 8992 transitions. [2021-11-12 22:52:03,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 937 [2021-11-12 22:52:03,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:03,084 INFO L514 BasicCegarLoop]: trace histogram [210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:03,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:03,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:52:03,310 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:03,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:03,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1463397424, now seen corresponding path program 1 times [2021-11-12 22:52:03,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:52:03,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684509099] [2021-11-12 22:52:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:03,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:52:03,466 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:52:03,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131292578] [2021-11-12 22:52:03,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:03,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:52:03,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:52:03,467 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:52:03,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-12 22:52:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:04,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 3052 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 22:52:04,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:05,951 INFO L134 CoverageAnalysis]: Checked inductivity of 43904 backedges. 835 proven. 0 refuted. 0 times theorem prover too weak. 43069 trivial. 0 not checked. [2021-11-12 22:52:05,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:08,380 INFO L134 CoverageAnalysis]: Checked inductivity of 43904 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 43900 trivial. 0 not checked. [2021-11-12 22:52:08,381 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:52:08,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684509099] [2021-11-12 22:52:08,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:52:08,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131292578] [2021-11-12 22:52:08,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131292578] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:52:08,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:52:08,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2021-11-12 22:52:08,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913015969] [2021-11-12 22:52:08,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:52:08,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:52:08,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:52:08,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:52:08,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:52:08,385 INFO L87 Difference]: Start difference. First operand 5962 states and 8992 transitions. Second operand has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2021-11-12 22:52:10,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:12,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:52:26,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:52:26,590 INFO L93 Difference]: Finished difference Result 10667 states and 16150 transitions. [2021-11-12 22:52:26,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:52:26,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 936 [2021-11-12 22:52:26,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:52:26,624 INFO L225 Difference]: With dead ends: 10667 [2021-11-12 22:52:26,624 INFO L226 Difference]: Without dead ends: 5996 [2021-11-12 22:52:26,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1871 GetRequests, 1864 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-12 22:52:26,641 INFO L933 BasicCegarLoop]: 3736 mSDtfsCounter, 1763 mSDsluCounter, 8100 mSDsCounter, 0 mSdLazyCounter, 2148 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13715.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 11744 SdHoareTripleChecker+Invalid, 2157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.30ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2148 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17879.39ms IncrementalHoareTripleChecker+Time [2021-11-12 22:52:26,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1765 Valid, 11744 Invalid, 2157 Unknown, 0 Unchecked, 28.30ms Time], IncrementalHoareTripleChecker [7 Valid, 2148 Invalid, 2 Unknown, 0 Unchecked, 17879.39ms Time] [2021-11-12 22:52:26,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5996 states. [2021-11-12 22:52:27,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5996 to 5946. [2021-11-12 22:52:27,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 3732 states have (on average 1.2532154340836013) internal successors, (4677), 3755 states have internal predecessors, (4677), 2109 states have call successors, (2109), 96 states have call predecessors, (2109), 104 states have return successors, (2182), 2098 states have call predecessors, (2182), 2107 states have call successors, (2182) [2021-11-12 22:52:27,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 8968 transitions. [2021-11-12 22:52:27,533 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 8968 transitions. Word has length 936 [2021-11-12 22:52:27,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:52:27,534 INFO L470 AbstractCegarLoop]: Abstraction has 5946 states and 8968 transitions. [2021-11-12 22:52:27,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.6) internal successors, (278), 5 states have internal predecessors, (278), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2021-11-12 22:52:27,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 8968 transitions. [2021-11-12 22:52:27,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2021-11-12 22:52:27,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:52:27,556 INFO L514 BasicCegarLoop]: trace histogram [210, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:52:27,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:52:27,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-12 22:52:27,770 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:52:27,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:52:27,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1690415479, now seen corresponding path program 1 times [2021-11-12 22:52:27,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:52:27,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503829322] [2021-11-12 22:52:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:27,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:52:27,948 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-12 22:52:27,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501145916] [2021-11-12 22:52:27,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:52:27,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 22:52:27,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:52:27,949 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 22:52:27,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81b9cc6-e52c-4e8e-9606-ca4d491d9dcd/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-12 22:52:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:52:29,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 3068 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-12 22:52:29,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:52:40,110 INFO L354 Elim1Store]: treesize reduction 34, result has 63.4 percent of original size [2021-11-12 22:52:40,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 86 [2021-11-12 22:52:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 43914 backedges. 26664 proven. 4523 refuted. 0 times theorem prover too weak. 12727 trivial. 0 not checked. [2021-11-12 22:52:40,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:52:48,585 INFO L134 CoverageAnalysis]: Checked inductivity of 43914 backedges. 338 proven. 286 refuted. 0 times theorem prover too weak. 43290 trivial. 0 not checked. [2021-11-12 22:52:48,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:52:48,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503829322] [2021-11-12 22:52:48,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-12 22:52:48,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501145916] [2021-11-12 22:52:48,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501145916] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:52:48,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [773076790] [2021-11-12 22:52:48,627 INFO L159 IcfgInterpreter]: Started Sifa with 507 locations of interest [2021-11-12 22:52:48,627 INFO L166 IcfgInterpreter]: Building call graph [2021-11-12 22:52:48,634 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-12 22:52:48,640 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-12 22:52:48,640 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-12 22:53:16,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:53:16,816 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:53:16,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:53:16,826 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:53:16,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:53:16,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size -37 [2021-11-12 22:53:16,838 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size -36 [2021-11-12 22:53:16,842 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:53:16,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:53:16,846 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-11-12 22:53:16,847 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:53:16,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:53:16,849 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 487 [2021-11-12 22:53:16,850 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-12 22:53:16,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:53:16,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-12 22:53:16,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 894 [2021-11-12 22:53:18,217 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_126|], 465=[|v_#valid_171|]} [2021-11-12 22:53:24,345 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |#t~string5.base|) [2021-11-12 22:53:24,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:26,383 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |#t~string6.base|) [2021-11-12 22:53:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:28,443 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |#t~string60.base|) [2021-11-12 22:53:28,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:30,490 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#__startrek_start~0.base|) [2021-11-12 22:53:30,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:32,556 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#__startrek_end~0.base|) [2021-11-12 22:53:32,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:34,590 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#__startrek_max~0.base|) [2021-11-12 22:53:34,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:36,640 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |#t~string4.base|) [2021-11-12 22:53:36,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:38,704 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:53:38,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:40,758 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |#t~string4.base|) [2021-11-12 22:53:40,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:42,856 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:53:42,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:44,905 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |#t~string4.base|) [2021-11-12 22:53:44,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:46,962 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:53:47,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:49,042 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:53:49,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:51,132 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:53:51,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:53,194 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |#t~string6.base|) [2021-11-12 22:53:53,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:55,218 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |#t~string60.base|) [2021-11-12 22:53:55,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:57,247 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#__startrek_start~0.base|) [2021-11-12 22:53:57,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:53:59,269 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#__startrek_end~0.base|) [2021-11-12 22:53:59,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:01,306 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#__startrek_max~0.base|) [2021-11-12 22:54:01,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:03,364 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |#t~string5.base|) [2021-11-12 22:54:03,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:05,414 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:54:05,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:07,490 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |#t~string5.base|) [2021-11-12 22:54:07,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:09,547 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:54:09,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:11,621 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |#t~string5.base|) [2021-11-12 22:54:11,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:13,738 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:54:13,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:15,819 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:54:15,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:17,925 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:54:17,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:19,997 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |#t~string60.base|) [2021-11-12 22:54:19,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:22,034 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#__startrek_start~0.base|) [2021-11-12 22:54:22,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:24,095 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#__startrek_end~0.base|) [2021-11-12 22:54:24,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:26,136 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#__startrek_max~0.base|) [2021-11-12 22:54:26,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:28,183 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |#t~string6.base|) [2021-11-12 22:54:28,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:30,241 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:54:30,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:32,325 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |#t~string6.base|) [2021-11-12 22:54:32,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:34,418 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:54:34,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:36,482 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |#t~string6.base|) [2021-11-12 22:54:36,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:38,609 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:54:38,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:40,671 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:54:40,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:42,796 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:54:42,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:44,881 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#__startrek_start~0.base|) [2021-11-12 22:54:44,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:46,916 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#__startrek_end~0.base|) [2021-11-12 22:54:46,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:48,982 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#__startrek_max~0.base|) [2021-11-12 22:54:48,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:51,026 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |#t~string60.base|) [2021-11-12 22:54:51,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:53,072 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:54:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:55,134 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |#t~string60.base|) [2021-11-12 22:54:55,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:57,215 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:54:57,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:54:59,288 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |#t~string60.base|) [2021-11-12 22:54:59,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:01,375 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:55:01,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:03,499 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:55:03,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:05,581 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:55:05,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:07,625 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:55:07,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:09,697 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_max~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:55:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:11,748 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:55:11,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:13,823 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_start~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:55:13,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:15,881 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:55:15,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:17,948 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:55:17,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:20,023 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:55:20,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:22,112 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_observer_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:55:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:24,209 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_observer_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:55:24,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:26,319 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:55:26,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:28,406 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:55:28,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:30,463 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#__startrek_end~0.base|) [2021-11-12 22:55:30,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:32,510 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:55:32,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:34,561 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#__startrek_end~0.base|) [2021-11-12 22:55:34,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:36,611 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:55:36,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:38,654 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#__startrek_end~0.base|) [2021-11-12 22:55:38,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:40,776 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:55:40,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:42,885 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:55:42,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:45,009 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:55:45,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:47,086 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:55:47,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:49,150 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_max~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:55:49,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:51,205 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:55:51,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:53,252 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:55:53,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:55,329 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:55:55,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:57,445 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_max~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:55:57,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:55:59,533 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_max~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:55:59,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:01,612 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:56:01,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:03,679 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:56:03,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:05,717 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_i_nxtway_gs_mode_~0.base|) [2021-11-12 22:56:05,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:07,753 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:56:07,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:09,813 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_i_obstacle_flag_~0.base|) [2021-11-12 22:56:09,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:11,881 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:11,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:13,981 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:14,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:16,053 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:56:16,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:18,100 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:56:18,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:20,151 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:56:20,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:22,218 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:56:22,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:24,272 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_observer_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:56:24,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:26,330 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_observer_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:56:26,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:28,407 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:56:28,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:30,487 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:56:30,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:32,538 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_i_nxtway_gs_mode_~0.base|) [2021-11-12 22:56:32,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:34,602 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:34,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:36,668 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:36,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:38,767 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:56:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:40,829 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:56:40,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:42,877 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:42,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:44,918 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:44,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:47,009 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:56:47,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:49,094 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:49,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:51,176 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:51,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:53,241 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:56:53,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:55,287 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_observer_obstacle_flag_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:55,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:57,349 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:57,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:59,395 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:56:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:56:59,396 INFO L244 Elim1Store]: Index analysis took 217083 ms [2021-11-12 22:56:59,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 130 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 76 [2021-11-12 22:56:59,415 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:56:59,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-11-12 22:56:59,417 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:56:59,418 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-11-12 22:56:59,419 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-12 22:56:59,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-12 22:56:59,496 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 22:57:03,555 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| 0) [2021-11-12 22:57:03,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:05,610 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| 0) [2021-11-12 22:57:05,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:07,639 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |#t~string4.base|) [2021-11-12 22:57:07,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:09,672 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |#t~string5.base|) [2021-11-12 22:57:09,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:11,725 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |#t~string6.base|) [2021-11-12 22:57:11,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:13,758 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |#t~string60.base|) [2021-11-12 22:57:13,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:15,789 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:57:17,840 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_min~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:57:19,851 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#__startrek_end~0.base|) [2021-11-12 22:57:21,863 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_min~0.base| |~#__startrek_end~0.base|) [2021-11-12 22:57:23,906 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:57:25,928 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_min~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:57:27,962 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| 0) [2021-11-12 22:57:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:29,985 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |#t~string5.base|) [2021-11-12 22:57:29,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:32,002 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| 0) [2021-11-12 22:57:32,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:34,031 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |#t~string6.base|) [2021-11-12 22:57:34,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:36,071 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |#t~string6.base|) [2021-11-12 22:57:36,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:38,084 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| 0) [2021-11-12 22:57:38,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:40,115 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:57:40,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:42,136 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:57:42,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:44,170 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:57:44,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:46,222 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:57:46,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:48,229 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:57:48,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:50,289 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:57:50,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:52,299 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:57:52,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:54,327 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:57:54,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:56,388 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:57:56,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:57:58,437 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:57:58,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:00,509 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:58:00,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:02,542 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#bt_receive_buf~0.base|) [2021-11-12 22:58:02,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:04,581 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:58:04,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:06,594 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#bt_receive_buf~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:58:06,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:08,612 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| 0) [2021-11-12 22:58:08,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:10,631 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |#t~string4.base|) [2021-11-12 22:58:10,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:12,668 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |#t~string5.base|) [2021-11-12 22:58:12,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:14,689 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |#t~string6.base|) [2021-11-12 22:58:14,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:16,696 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |#t~string60.base|) [2021-11-12 22:58:16,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:18,736 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:58:20,753 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:58:22,803 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#__startrek_end~0.base|) [2021-11-12 22:58:24,858 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_obstacle_flag_~0.base| |~#__startrek_end~0.base|) [2021-11-12 22:58:26,866 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:58:28,880 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_obstacle_flag_~0.base| |~#__startrek_max~0.base|) [2021-11-12 22:58:30,915 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_i_obstacle_flag_~0.base|) [2021-11-12 22:58:32,952 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_min~0.base| |~#_i_obstacle_flag_~0.base|) [2021-11-12 22:58:34,992 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:58:37,022 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:58:39,035 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_i_nxtway_gs_mode_~0.base|) [2021-11-12 22:58:41,092 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_obstacle_flag_~0.base| |~#_i_nxtway_gs_mode_~0.base|) [2021-11-12 22:58:43,120 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:58:45,161 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_obstacle_flag_~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 22:58:47,190 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| 0) [2021-11-12 22:58:47,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:49,220 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#__startrek_end~0.base|) [2021-11-12 22:58:49,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:51,264 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#__startrek_end~0.base|) [2021-11-12 22:58:51,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:53,310 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#__startrek_end~0.base|) [2021-11-12 22:58:53,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:55,346 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#__startrek_end~0.base|) [2021-11-12 22:58:55,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:58:57,383 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:58:59,408 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_end~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:59:01,446 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_observer_obstacle_flag_~0.base| 0) [2021-11-12 22:59:01,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:03,501 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:03,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:05,558 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:05,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:07,580 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:07,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:09,606 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:09,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:11,668 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_observer_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:59:13,710 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_observer_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 22:59:15,739 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:17,747 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_end~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:19,787 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_max~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:21,840 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_max~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:23,862 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:25,897 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_min~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:27,959 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_observer_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:59:29,986 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_observer_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 22:59:32,021 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:34,030 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:36,042 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:38,076 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_obstacle_flag_~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:40,128 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:42,182 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_obstacle_flag_~0.base| |~#_i_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:44,238 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_observer_obstacle_flag_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:46,303 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_observer_obstacle_flag_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 22:59:48,310 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_start~0.base| 0) [2021-11-12 22:59:48,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:50,355 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#__startrek_start~0.base|) [2021-11-12 22:59:50,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:52,382 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#__startrek_start~0.base|) [2021-11-12 22:59:52,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:54,417 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#__startrek_start~0.base|) [2021-11-12 22:59:54,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:56,493 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#__startrek_start~0.base|) [2021-11-12 22:59:56,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 22:59:58,518 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_nxtway_gs_mode_~0.base| 0) [2021-11-12 22:59:58,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:00,565 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:00,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:02,614 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:02,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:04,668 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:04,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:06,700 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:06,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:08,728 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_start~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:10,756 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_start~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:12,818 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:14,866 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_end~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:16,906 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_max~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:18,978 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_max~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:21,031 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:23,077 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_min~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:25,102 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_observer_obstacle_flag_~0.base| 0) [2021-11-12 23:00:25,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:27,134 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:27,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:29,179 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:29,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:31,212 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:31,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:33,246 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:33,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:00:35,323 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_observer_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 23:00:37,386 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_observer_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 23:00:39,395 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:41,422 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_end~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:43,449 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_max~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:45,478 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_max~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:47,527 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:49,556 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_min~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:51,582 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_observer_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:53,617 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_observer_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:00:55,627 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:57,694 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:00:59,728 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:01:01,768 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_obstacle_flag_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:01:03,788 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_obstacle_flag_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:01:05,817 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_obstacle_flag_~0.base| |~#_observer_obstacle_flag_~0.base|) [2021-11-12 23:01:07,849 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_max~0.base| 0) [2021-11-12 23:01:07,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:09,886 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#__startrek_max~0.base|) [2021-11-12 23:01:09,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:11,915 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#__startrek_max~0.base|) [2021-11-12 23:01:11,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:13,972 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#__startrek_max~0.base|) [2021-11-12 23:01:13,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:16,001 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#__startrek_max~0.base|) [2021-11-12 23:01:16,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:18,052 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_max~0.base| |~#__startrek_start~0.base|) [2021-11-12 23:01:20,103 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_max~0.base| |~#__startrek_start~0.base|) [2021-11-12 23:01:22,151 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#__startrek_max~0.base|) [2021-11-12 23:01:24,160 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_end~0.base| |~#__startrek_max~0.base|) [2021-11-12 23:01:26,174 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| 0) [2021-11-12 23:01:26,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:28,192 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:01:28,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:30,210 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:01:30,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:32,255 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:01:32,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:34,336 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:01:34,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:01:36,374 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 23:01:38,434 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_obstacle_flag_~0.base| |~#__startrek_start~0.base|) [2021-11-12 23:01:40,503 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_end~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:01:42,570 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_end~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:01:44,624 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#__startrek_max~0.base|) [2021-11-12 23:01:46,680 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_obstacle_flag_~0.base| |~#__startrek_max~0.base|) [2021-11-12 23:01:48,692 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:01:50,725 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_min~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:01:52,755 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:01:54,773 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_obstacle_flag_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:01:56,833 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:01:58,890 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_obstacle_flag_~0.base|) [2021-11-12 23:02:00,924 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string60.base| 0) [2021-11-12 23:02:00,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:02,960 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |#t~string60.base|) [2021-11-12 23:02:02,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:05,023 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string5.base| |#t~string60.base|) [2021-11-12 23:02:05,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:07,076 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string6.base| |#t~string60.base|) [2021-11-12 23:02:07,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:09,102 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| 0) [2021-11-12 23:02:09,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:11,145 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |#t~string4.base|) [2021-11-12 23:02:11,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:13,184 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |#t~string5.base|) [2021-11-12 23:02:13,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:15,237 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |#t~string6.base|) [2021-11-12 23:02:15,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:17,291 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |#t~string60.base|) [2021-11-12 23:02:17,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:19,329 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#__startrek_start~0.base|) [2021-11-12 23:02:21,369 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#__startrek_start~0.base|) [2021-11-12 23:02:23,400 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#__startrek_end~0.base|) [2021-11-12 23:02:25,428 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#__startrek_end~0.base|) [2021-11-12 23:02:27,491 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#__startrek_max~0.base|) [2021-11-12 23:02:29,516 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#__startrek_max~0.base|) [2021-11-12 23:02:31,573 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#__startrek_min~0.base| |~#_i_nxtway_gs_mode_~0.base|) [2021-11-12 23:02:33,591 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#__startrek_min~0.base| |~#_i_nxtway_gs_mode_~0.base|) [2021-11-12 23:02:35,617 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:02:37,628 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= |~#_i_nxtway_gs_mode_~0.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:02:41,708 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#_nxtway_gs_mode_~0.base|) [2021-11-12 23:02:41,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:43,742 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |~#__startrek_start~0.base|) [2021-11-12 23:02:43,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:02:45,784 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |#t~string4.base| |#t~string6.base|) [2021-11-12 23:02:45,785 INFO L190 IndexEqualityManager]: detected not equals via solver