./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-crafted/zero_sum5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-crafted/zero_sum5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1caf94d5755d978efe1a3e5e557e469a697b8b845c60d509025c0b6bf4eae4ae --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:07:54,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:07:54,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:07:54,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:07:54,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:07:54,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:07:54,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:07:54,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:07:54,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:07:54,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:07:54,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:07:54,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:07:54,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:07:54,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:07:54,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:07:54,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:07:54,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:07:54,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:07:54,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:07:54,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:07:54,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:07:54,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:07:54,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:07:54,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:07:54,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:07:54,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:07:54,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:07:54,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:07:54,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:07:54,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:07:54,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:07:54,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:07:54,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:07:54,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:07:54,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:07:54,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:07:54,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:07:54,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:07:54,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:07:54,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:07:54,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:07:54,467 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:07:54,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:07:54,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:07:54,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:07:54,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:07:54,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:07:54,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:07:54,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:07:54,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:07:54,494 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:07:54,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:07:54,494 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:07:54,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:07:54,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:07:54,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:07:54,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:07:54,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:07:54,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:07:54,495 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:07:54,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:07:54,495 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:07:54,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:07:54,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:07:54,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:07:54,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:07:54,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:07:54,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:07:54,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:07:54,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:07:54,497 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:07:54,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:07:54,497 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:07:54,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:07:54,497 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:07:54,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:07:54,498 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:07:54,498 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1caf94d5755d978efe1a3e5e557e469a697b8b845c60d509025c0b6bf4eae4ae [2022-12-13 18:07:54,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:07:54,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:07:54,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:07:54,714 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:07:54,714 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:07:54,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-crafted/zero_sum5.c [2022-12-13 18:07:57,333 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:07:57,459 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:07:57,460 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/sv-benchmarks/c/array-crafted/zero_sum5.c [2022-12-13 18:07:57,464 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/data/c481f17fc/459c5e7340c64e88968aa9a2cd908c61/FLAG9c795f3e1 [2022-12-13 18:07:57,475 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/data/c481f17fc/459c5e7340c64e88968aa9a2cd908c61 [2022-12-13 18:07:57,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:07:57,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:07:57,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:07:57,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:07:57,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:07:57,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8d16b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57, skipping insertion in model container [2022-12-13 18:07:57,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:07:57,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:07:57,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/sv-benchmarks/c/array-crafted/zero_sum5.c[400,413] [2022-12-13 18:07:57,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:07:57,657 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:07:57,666 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/sv-benchmarks/c/array-crafted/zero_sum5.c[400,413] [2022-12-13 18:07:57,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:07:57,685 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:07:57,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57 WrapperNode [2022-12-13 18:07:57,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:07:57,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:07:57,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:07:57,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:07:57,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,714 INFO L138 Inliner]: procedures = 15, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 149 [2022-12-13 18:07:57,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:07:57,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:07:57,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:07:57,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:07:57,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,734 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:07:57,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:07:57,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:07:57,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:07:57,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (1/1) ... [2022-12-13 18:07:57,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:07:57,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:07:57,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:07:57,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:07:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:07:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:07:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:07:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:07:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:07:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:07:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:07:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:07:57,857 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:07:57,859 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:07:58,022 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:07:58,028 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:07:58,029 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-12-13 18:07:58,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:07:58 BoogieIcfgContainer [2022-12-13 18:07:58,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:07:58,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:07:58,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:07:58,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:07:58,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:07:57" (1/3) ... [2022-12-13 18:07:58,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4026b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:07:58, skipping insertion in model container [2022-12-13 18:07:58,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:07:57" (2/3) ... [2022-12-13 18:07:58,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4026b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:07:58, skipping insertion in model container [2022-12-13 18:07:58,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:07:58" (3/3) ... [2022-12-13 18:07:58,059 INFO L112 eAbstractionObserver]: Analyzing ICFG zero_sum5.c [2022-12-13 18:07:58,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:07:58,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 18:07:58,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:07:58,125 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@68bba3a9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:07:58,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 18:07:58,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.5952380952380953) internal successors, (67), 43 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 18:07:58,134 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:07:58,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:07:58,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:07:58,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:07:58,139 INFO L85 PathProgramCache]: Analyzing trace with hash 226651140, now seen corresponding path program 1 times [2022-12-13 18:07:58,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:07:58,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416328774] [2022-12-13 18:07:58,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:07:58,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:07:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:07:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:07:58,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:07:58,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416328774] [2022-12-13 18:07:58,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416328774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:07:58,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:07:58,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:07:58,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979868333] [2022-12-13 18:07:58,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:07:58,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:07:58,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:07:58,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:07:58,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:07:58,299 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.5952380952380953) internal successors, (67), 43 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:07:58,314 INFO L93 Difference]: Finished difference Result 83 states and 126 transitions. [2022-12-13 18:07:58,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:07:58,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-13 18:07:58,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:07:58,322 INFO L225 Difference]: With dead ends: 83 [2022-12-13 18:07:58,322 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 18:07:58,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:07:58,327 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:07:58,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:07:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 18:07:58,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-13 18:07:58,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2022-12-13 18:07:58,354 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 27 [2022-12-13 18:07:58,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:07:58,354 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2022-12-13 18:07:58,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,355 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2022-12-13 18:07:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 18:07:58,355 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:07:58,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:07:58,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:07:58,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:07:58,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:07:58,356 INFO L85 PathProgramCache]: Analyzing trace with hash -833651044, now seen corresponding path program 1 times [2022-12-13 18:07:58,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:07:58,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442104109] [2022-12-13 18:07:58,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:07:58,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:07:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:07:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:07:58,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:07:58,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442104109] [2022-12-13 18:07:58,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442104109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:07:58,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:07:58,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:07:58,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026394966] [2022-12-13 18:07:58,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:07:58,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:07:58,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:07:58,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:07:58,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:07:58,449 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:07:58,494 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2022-12-13 18:07:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:07:58,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-12-13 18:07:58,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:07:58,496 INFO L225 Difference]: With dead ends: 75 [2022-12-13 18:07:58,496 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 18:07:58,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:07:58,497 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:07:58,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 70 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:07:58,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 18:07:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-12-13 18:07:58,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2022-12-13 18:07:58,502 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 27 [2022-12-13 18:07:58,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:07:58,502 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2022-12-13 18:07:58,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,502 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2022-12-13 18:07:58,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 18:07:58,503 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:07:58,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:07:58,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:07:58,503 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:07:58,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:07:58,504 INFO L85 PathProgramCache]: Analyzing trace with hash 479992254, now seen corresponding path program 1 times [2022-12-13 18:07:58,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:07:58,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625692743] [2022-12-13 18:07:58,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:07:58,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:07:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:07:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 18:07:58,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:07:58,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625692743] [2022-12-13 18:07:58,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625692743] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:07:58,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:07:58,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:07:58,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105938320] [2022-12-13 18:07:58,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:07:58,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:07:58,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:07:58,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:07:58,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:07:58,576 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:07:58,682 INFO L93 Difference]: Finished difference Result 91 states and 119 transitions. [2022-12-13 18:07:58,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:07:58,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-12-13 18:07:58,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:07:58,683 INFO L225 Difference]: With dead ends: 91 [2022-12-13 18:07:58,683 INFO L226 Difference]: Without dead ends: 60 [2022-12-13 18:07:58,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:07:58,685 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:07:58,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 21 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:07:58,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-12-13 18:07:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2022-12-13 18:07:58,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 49 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-12-13 18:07:58,693 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 29 [2022-12-13 18:07:58,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:07:58,693 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-12-13 18:07:58,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:58,694 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-12-13 18:07:58,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 18:07:58,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:07:58,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:07:58,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:07:58,695 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:07:58,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:07:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash -509099182, now seen corresponding path program 1 times [2022-12-13 18:07:58,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:07:58,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44637736] [2022-12-13 18:07:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:07:58,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:07:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:07:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 18:07:58,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:07:58,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44637736] [2022-12-13 18:07:58,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44637736] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:07:58,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105755243] [2022-12-13 18:07:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:07:58,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:07:58,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:07:58,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:07:58,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 18:07:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:07:58,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 18:07:58,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:07:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 18:07:58,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:07:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 18:07:58,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105755243] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:07:58,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:07:58,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 18:07:58,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539382824] [2022-12-13 18:07:58,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:07:58,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:07:58,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:07:58,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:07:58,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:07:58,995 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:59,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:07:59,058 INFO L93 Difference]: Finished difference Result 97 states and 117 transitions. [2022-12-13 18:07:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:07:59,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-12-13 18:07:59,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:07:59,059 INFO L225 Difference]: With dead ends: 97 [2022-12-13 18:07:59,059 INFO L226 Difference]: Without dead ends: 53 [2022-12-13 18:07:59,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:07:59,061 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:07:59,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 116 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:07:59,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-13 18:07:59,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2022-12-13 18:07:59,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 51 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2022-12-13 18:07:59,069 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 49 [2022-12-13 18:07:59,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:07:59,069 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2022-12-13 18:07:59,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:59,069 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2022-12-13 18:07:59,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 18:07:59,070 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:07:59,070 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 18:07:59,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:07:59,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:07:59,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:07:59,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:07:59,272 INFO L85 PathProgramCache]: Analyzing trace with hash 290748660, now seen corresponding path program 2 times [2022-12-13 18:07:59,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:07:59,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114988503] [2022-12-13 18:07:59,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:07:59,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:07:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:07:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 18:07:59,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:07:59,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114988503] [2022-12-13 18:07:59,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114988503] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:07:59,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699054642] [2022-12-13 18:07:59,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:07:59,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:07:59,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:07:59,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:07:59,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 18:07:59,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 18:07:59,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:07:59,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 18:07:59,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:07:59,484 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 18:07:59,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:07:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 18:07:59,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699054642] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:07:59,537 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:07:59,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-12-13 18:07:59,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011988363] [2022-12-13 18:07:59,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:07:59,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:07:59,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:07:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:07:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:07:59,539 INFO L87 Difference]: Start difference. First operand 52 states and 62 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:59,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:07:59,666 INFO L93 Difference]: Finished difference Result 122 states and 150 transitions. [2022-12-13 18:07:59,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:07:59,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-12-13 18:07:59,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:07:59,667 INFO L225 Difference]: With dead ends: 122 [2022-12-13 18:07:59,667 INFO L226 Difference]: Without dead ends: 82 [2022-12-13 18:07:59,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2022-12-13 18:07:59,668 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 45 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:07:59,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 33 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:07:59,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-13 18:07:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2022-12-13 18:07:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.1549295774647887) internal successors, (82), 71 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:59,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2022-12-13 18:07:59,673 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 51 [2022-12-13 18:07:59,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:07:59,674 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2022-12-13 18:07:59,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:07:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2022-12-13 18:07:59,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 18:07:59,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:07:59,680 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:07:59,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 18:07:59,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:07:59,881 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:07:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:07:59,883 INFO L85 PathProgramCache]: Analyzing trace with hash -813057144, now seen corresponding path program 3 times [2022-12-13 18:07:59,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:07:59,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541169552] [2022-12-13 18:07:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:07:59,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:08:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:08:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:08:03,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:08:03,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541169552] [2022-12-13 18:08:03,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541169552] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:08:03,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369396139] [2022-12-13 18:08:03,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 18:08:03,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:08:03,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:08:03,965 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:08:03,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 18:08:04,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 18:08:04,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:08:04,039 WARN L261 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 104 conjunts are in the unsatisfiable core [2022-12-13 18:08:04,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:08:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:08:05,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:08:12,983 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 18:08:12,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 53 treesize of output 164 [2022-12-13 18:08:19,835 INFO L321 Elim1Store]: treesize reduction 136, result has 11.1 percent of original size [2022-12-13 18:08:19,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 52 treesize of output 27 [2022-12-13 18:08:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:08:20,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369396139] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:08:20,173 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:08:20,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 23, 30] total 58 [2022-12-13 18:08:20,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115188074] [2022-12-13 18:08:20,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:08:20,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-12-13 18:08:20,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:08:20,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-12-13 18:08:20,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=3003, Unknown=0, NotChecked=0, Total=3306 [2022-12-13 18:08:20,175 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 58 states, 58 states have (on average 3.396551724137931) internal successors, (197), 58 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:08:26,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:08:26,413 INFO L93 Difference]: Finished difference Result 197 states and 227 transitions. [2022-12-13 18:08:26,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-13 18:08:26,413 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 3.396551724137931) internal successors, (197), 58 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-12-13 18:08:26,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:08:26,416 INFO L225 Difference]: With dead ends: 197 [2022-12-13 18:08:26,416 INFO L226 Difference]: Without dead ends: 191 [2022-12-13 18:08:26,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 89 SyntacticMatches, 51 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2492 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=652, Invalid=5828, Unknown=0, NotChecked=0, Total=6480 [2022-12-13 18:08:26,419 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 128 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 2466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:08:26,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 192 Invalid, 2466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 2307 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 18:08:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-12-13 18:08:26,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 125. [2022-12-13 18:08:26,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.1612903225806452) internal successors, (144), 124 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:08:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 144 transitions. [2022-12-13 18:08:26,445 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 144 transitions. Word has length 71 [2022-12-13 18:08:26,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:08:26,445 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 144 transitions. [2022-12-13 18:08:26,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 3.396551724137931) internal successors, (197), 58 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:08:26,446 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 144 transitions. [2022-12-13 18:08:26,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-13 18:08:26,447 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:08:26,447 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:08:26,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 18:08:26,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 18:08:26,649 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:08:26,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:08:26,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1767165226, now seen corresponding path program 4 times [2022-12-13 18:08:26,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:08:26,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627469076] [2022-12-13 18:08:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:08:26,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:08:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:08:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 18:08:26,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:08:26,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627469076] [2022-12-13 18:08:26,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627469076] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:08:26,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33127346] [2022-12-13 18:08:26,780 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 18:08:26,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:08:26,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:08:26,781 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:08:26,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 18:08:26,832 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 18:08:26,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:08:26,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 18:08:26,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:08:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 18:08:26,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:08:26,956 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 18:08:26,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33127346] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:08:26,956 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:08:26,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-12-13 18:08:26,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967912816] [2022-12-13 18:08:26,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:08:26,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 18:08:26,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:08:26,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 18:08:26,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:08:26,958 INFO L87 Difference]: Start difference. First operand 125 states and 144 transitions. Second operand has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:08:27,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:08:27,281 INFO L93 Difference]: Finished difference Result 342 states and 395 transitions. [2022-12-13 18:08:27,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 18:08:27,281 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-12-13 18:08:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:08:27,282 INFO L225 Difference]: With dead ends: 342 [2022-12-13 18:08:27,282 INFO L226 Difference]: Without dead ends: 168 [2022-12-13 18:08:27,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 133 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-12-13 18:08:27,283 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 285 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:08:27,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 77 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 18:08:27,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-13 18:08:27,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 140. [2022-12-13 18:08:27,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.1366906474820144) internal successors, (158), 139 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:08:27,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 158 transitions. [2022-12-13 18:08:27,299 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 158 transitions. Word has length 73 [2022-12-13 18:08:27,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:08:27,299 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 158 transitions. [2022-12-13 18:08:27,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.625) internal successors, (74), 16 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:08:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 158 transitions. [2022-12-13 18:08:27,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 18:08:27,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:08:27,301 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:08:27,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 18:08:27,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:08:27,502 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:08:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:08:27,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1072452492, now seen corresponding path program 5 times [2022-12-13 18:08:27,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:08:27,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983319553] [2022-12-13 18:08:27,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:08:27,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:08:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:08:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-13 18:08:27,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:08:27,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983319553] [2022-12-13 18:08:27,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983319553] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:08:27,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152798605] [2022-12-13 18:08:27,654 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 18:08:27,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:08:27,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:08:27,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:08:27,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 18:08:27,798 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-12-13 18:08:27,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:08:27,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 18:08:27,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:08:27,877 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-13 18:08:27,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:08:27,952 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-13 18:08:27,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152798605] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:08:27,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:08:27,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-12-13 18:08:27,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808681537] [2022-12-13 18:08:27,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:08:27,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 18:08:27,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:08:27,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 18:08:27,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-12-13 18:08:27,954 INFO L87 Difference]: Start difference. First operand 140 states and 158 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:08:28,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:08:28,125 INFO L93 Difference]: Finished difference Result 156 states and 174 transitions. [2022-12-13 18:08:28,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:08:28,125 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-12-13 18:08:28,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:08:28,126 INFO L225 Difference]: With dead ends: 156 [2022-12-13 18:08:28,126 INFO L226 Difference]: Without dead ends: 104 [2022-12-13 18:08:28,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 139 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-12-13 18:08:28,127 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 323 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:08:28,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 35 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:08:28,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-13 18:08:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 94. [2022-12-13 18:08:28,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.118279569892473) internal successors, (104), 93 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:08:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2022-12-13 18:08:28,132 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 75 [2022-12-13 18:08:28,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:08:28,135 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2022-12-13 18:08:28,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:08:28,135 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2022-12-13 18:08:28,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-13 18:08:28,137 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:08:28,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:08:28,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 18:08:28,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:08:28,338 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:08:28,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:08:28,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1413596990, now seen corresponding path program 6 times [2022-12-13 18:08:28,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:08:28,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727866284] [2022-12-13 18:08:28,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:08:28,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:08:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:08:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:08:33,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:08:33,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727866284] [2022-12-13 18:08:33,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727866284] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:08:33,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773433827] [2022-12-13 18:08:33,619 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 18:08:33,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:08:33,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:08:33,620 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:08:33,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 18:08:33,699 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-12-13 18:08:33,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:08:33,702 WARN L261 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 144 conjunts are in the unsatisfiable core [2022-12-13 18:08:33,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:08:33,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 18:08:36,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 18:08:36,385 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 18:08:36,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 47 [2022-12-13 18:08:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:08:36,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:14:18,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 158 [2022-12-13 18:14:18,201 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 18:14:18,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1162 treesize of output 1023 [2022-12-13 18:14:32,211 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:32,524 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:32,680 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:32,755 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:33,010 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:33,346 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:34,092 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:34,176 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:34,235 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:34,440 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:34,472 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:34,602 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:34,704 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:34,790 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:34,848 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:34,920 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:35,022 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:35,055 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:35,185 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:35,255 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:35,379 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:35,404 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:35,431 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:14:35,516 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:35,542 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:35,610 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:35,645 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:35,704 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:35,752 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:35,775 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:35,935 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:36,045 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:36,177 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:36,665 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:37,223 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:37,610 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:37,711 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:37,765 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:37,922 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:38,034 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:38,068 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:38,162 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:38,241 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:38,330 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:38,430 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:38,799 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:38,937 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:38,977 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:39,027 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:39,549 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:39,721 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:39,764 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:39,818 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:39,926 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:40,043 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:40,120 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:40,166 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:40,214 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:40,254 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:40,346 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:40,395 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:40,447 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:40,602 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:40,668 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:40,765 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:40,797 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:40,921 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:41,015 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:41,083 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:41,150 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:41,316 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:41,602 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:41,657 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:41,854 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:42,075 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:42,134 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:42,318 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:42,400 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:42,470 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:42,579 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:14:42,700 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:42,772 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:42,847 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:42,942 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:43,025 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:43,101 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:43,254 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:43,421 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:43,598 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:43,765 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:43,857 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:43,960 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:44,064 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:44,299 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:44,476 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:44,565 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:44,657 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:44,769 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:44,840 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:44,877 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:44,961 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:45,039 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:45,190 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:14:45,282 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:45,371 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:45,454 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:45,546 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:45,626 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:45,688 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:45,755 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:14:45,853 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:45,896 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:45,961 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:46,024 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:46,107 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:46,175 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:46,243 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:14:46,352 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:46,421 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:14:46,519 WARN L718 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2022-12-13 18:14:46,628 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:46,714 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:46,861 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:47,228 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:47,405 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:47,529 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:47,675 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:47,803 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:47,925 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:48,092 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:48,201 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:14:48,337 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:48,350 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:48,411 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:48,499 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:48,518 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:48,654 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:48,671 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:48,780 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:48,790 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:48,807 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:49,248 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:49,870 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:50,055 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:50,131 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:50,357 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:50,594 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:50,670 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:50,740 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:50,817 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:50,876 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:50,941 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:51,025 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:51,111 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:51,364 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:51,440 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:51,533 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:51,911 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:52,333 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:52,578 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:52,742 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:52,829 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:53,002 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:53,868 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:54,612 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:55,159 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:55,283 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:55,635 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:56,040 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:56,131 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:56,209 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:56,431 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:56,517 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:56,858 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:14:57,154 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:57,238 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:14:57,522 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:57,606 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:57,816 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:58,582 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:59,265 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:14:59,926 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:00,233 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:00,421 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:00,685 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:01,008 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:01,425 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:01,650 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:02,029 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:02,388 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:02,824 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:03,134 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:03,514 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:04,140 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:04,526 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:04,783 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:05,075 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:05,437 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:05,607 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:05,704 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:06,039 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:06,390 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:06,482 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:06,590 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:06,705 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:06,802 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:06,903 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:07,006 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:07,162 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:07,345 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:07,443 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:08,069 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:08,568 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:08,722 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:08,965 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:09,995 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:10,385 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:10,487 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:10,594 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:10,769 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:10,908 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:10,977 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:11,075 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:11,159 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:11,255 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:15:11,390 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:11,452 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:11,546 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:11,663 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:11,811 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:12,124 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:12,279 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:12,356 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:12,607 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:12,709 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:12,792 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:13,049 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:13,210 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:13,328 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:14,217 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:14,344 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:14,495 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:14,597 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:14,779 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:15,378 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:15,914 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:16,747 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:16,910 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:17,007 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:17,723 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:18,431 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:18,558 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:18,842 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:19,694 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:20,309 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:20,431 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:20,461 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:21,652 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:22,641 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:22,928 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:23,390 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:23,548 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:23,717 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:24,388 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:24,977 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:25,201 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:25,406 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:25,566 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:25,574 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:25,600 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:25,800 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:26,020 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:26,517 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:27,174 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:27,332 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:15:27,672 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:27,879 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:28,085 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:28,327 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:29,512 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:29,732 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:29,995 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:31,034 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:31,478 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:31,744 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:32,038 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:32,462 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:33,271 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:34,300 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:34,528 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:34,645 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:35,382 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:35,899 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:36,074 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:36,189 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:36,778 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:37,043 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2022-12-13 18:15:37,447 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:37,720 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:37,858 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:38,022 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:38,287 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:38,532 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:38,697 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:39,101 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:39,670 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:40,535 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:40,719 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:41,451 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:41,922 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:42,218 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:42,531 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:43,700 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:44,031 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:44,761 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:44,918 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:45,546 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:46,392 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:46,609 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:46,764 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:47,484 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:48,054 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:48,648 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:48,799 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:49,651 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:49,796 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:49,968 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:50,312 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:50,587 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:15:50,732 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:15:57,277 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:57,773 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:15:58,195 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:01,218 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:03,572 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:04,185 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:04,675 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:05,005 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:05,544 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:05,813 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:06,168 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:06,404 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:06,574 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:06,785 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:16:06,988 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:07,288 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:07,512 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:07,795 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:08,053 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:08,216 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:16:09,248 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:10,660 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:11,406 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:11,587 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:11,794 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:12,084 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:12,258 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:12,473 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:12,674 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:12,951 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:13,263 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:13,483 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:14,100 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:14,509 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:14,963 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:15,453 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:15,655 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:16:15,884 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:16,029 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:16:16,222 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:16,515 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:16,712 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:16,823 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:17,135 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:17,281 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:17,806 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:17,937 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:18,101 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:18,803 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:16:19,304 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:19,770 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:20,044 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2022-12-13 18:16:20,594 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2022-12-13 18:16:20,989 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:21,413 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:23,766 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:23,930 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:41,648 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2022-12-13 18:16:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 4 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:16:43,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773433827] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:16:43,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:16:43,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 46, 52] total 134 [2022-12-13 18:16:43,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103160327] [2022-12-13 18:16:43,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:16:43,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-12-13 18:16:43,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:16:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-12-13 18:16:43,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1441, Invalid=16269, Unknown=112, NotChecked=0, Total=17822 [2022-12-13 18:16:43,074 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand has 134 states, 134 states have (on average 1.9850746268656716) internal successors, (266), 134 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:01,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:17:01,381 INFO L93 Difference]: Finished difference Result 224 states and 255 transitions. [2022-12-13 18:17:01,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-13 18:17:01,382 INFO L78 Accepts]: Start accepts. Automaton has has 134 states, 134 states have (on average 1.9850746268656716) internal successors, (266), 134 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-12-13 18:17:01,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:17:01,383 INFO L225 Difference]: With dead ends: 224 [2022-12-13 18:17:01,383 INFO L226 Difference]: Without dead ends: 100 [2022-12-13 18:17:01,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 101 SyntacticMatches, 24 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11136 ImplicationChecksByTransitivity, 348.6s TimeCoverageRelationStatistics Valid=2390, Invalid=22938, Unknown=112, NotChecked=0, Total=25440 [2022-12-13 18:17:01,389 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 255 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 8250 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 8909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 8250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-12-13 18:17:01,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 277 Invalid, 8909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [659 Valid, 8250 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2022-12-13 18:17:01,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-13 18:17:01,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2022-12-13 18:17:01,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.1134020618556701) internal successors, (108), 97 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2022-12-13 18:17:01,395 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 93 [2022-12-13 18:17:01,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:17:01,395 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2022-12-13 18:17:01,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 1.9850746268656716) internal successors, (266), 134 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:01,395 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2022-12-13 18:17:01,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 18:17:01,396 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:17:01,396 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:01,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 18:17:01,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-13 18:17:01,598 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:17:01,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:01,600 INFO L85 PathProgramCache]: Analyzing trace with hash -345123774, now seen corresponding path program 7 times [2022-12-13 18:17:01,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:01,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017940258] [2022-12-13 18:17:01,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:01,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-12-13 18:17:01,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:01,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017940258] [2022-12-13 18:17:01,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017940258] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:17:01,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904278358] [2022-12-13 18:17:01,758 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 18:17:01,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:17:01,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:17:01,759 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:17:01,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 18:17:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:01,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 18:17:01,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:17:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-12-13 18:17:01,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:17:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-12-13 18:17:01,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904278358] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:17:01,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:17:01,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2022-12-13 18:17:01,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081843515] [2022-12-13 18:17:01,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:17:01,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 18:17:01,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:01,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 18:17:01,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:17:01,971 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:02,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:17:02,218 INFO L93 Difference]: Finished difference Result 194 states and 220 transitions. [2022-12-13 18:17:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 18:17:02,219 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-12-13 18:17:02,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:17:02,219 INFO L225 Difference]: With dead ends: 194 [2022-12-13 18:17:02,219 INFO L226 Difference]: Without dead ends: 126 [2022-12-13 18:17:02,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 180 SyntacticMatches, 8 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2022-12-13 18:17:02,220 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 305 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:17:02,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 38 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 18:17:02,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-12-13 18:17:02,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 116. [2022-12-13 18:17:02,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.0956521739130434) internal successors, (126), 115 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2022-12-13 18:17:02,227 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 97 [2022-12-13 18:17:02,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:17:02,227 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2022-12-13 18:17:02,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2022-12-13 18:17:02,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-13 18:17:02,228 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:17:02,228 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:02,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 18:17:02,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 18:17:02,429 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:17:02,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:02,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1433123212, now seen corresponding path program 8 times [2022-12-13 18:17:02,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:02,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175575324] [2022-12-13 18:17:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:02,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 6 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:17:11,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:11,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175575324] [2022-12-13 18:17:11,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175575324] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:17:11,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336921058] [2022-12-13 18:17:11,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:17:11,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:17:11,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:17:11,380 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:17:11,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 18:17:11,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 18:17:11,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:17:11,462 WARN L261 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 180 conjunts are in the unsatisfiable core [2022-12-13 18:17:11,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:17:11,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 18:17:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:17:13,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:17:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 18:17:15,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336921058] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:17:15,787 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:17:15,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 24, 19] total 89 [2022-12-13 18:17:15,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692894355] [2022-12-13 18:17:15,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:17:15,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-12-13 18:17:15,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:15,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-12-13 18:17:15,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=399, Invalid=7433, Unknown=0, NotChecked=0, Total=7832 [2022-12-13 18:17:15,793 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand has 89 states, 89 states have (on average 3.359550561797753) internal successors, (299), 89 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:27,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:17:27,872 INFO L93 Difference]: Finished difference Result 243 states and 270 transitions. [2022-12-13 18:17:27,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-13 18:17:27,873 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 3.359550561797753) internal successors, (299), 89 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-12-13 18:17:27,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:17:27,873 INFO L225 Difference]: With dead ends: 243 [2022-12-13 18:17:27,873 INFO L226 Difference]: Without dead ends: 239 [2022-12-13 18:17:27,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 194 SyntacticMatches, 41 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5686 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=1080, Invalid=15432, Unknown=0, NotChecked=0, Total=16512 [2022-12-13 18:17:27,875 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 317 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 7237 mSolverCounterSat, 1256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 8493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1256 IncrementalHoareTripleChecker+Valid, 7237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:17:27,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 302 Invalid, 8493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1256 Valid, 7237 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-12-13 18:17:27,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-12-13 18:17:27,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 121. [2022-12-13 18:17:27,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.1) internal successors, (132), 120 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:27,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 132 transitions. [2022-12-13 18:17:27,903 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 132 transitions. Word has length 115 [2022-12-13 18:17:27,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:17:27,903 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 132 transitions. [2022-12-13 18:17:27,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 3.359550561797753) internal successors, (299), 89 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:27,904 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 132 transitions. [2022-12-13 18:17:27,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-13 18:17:27,904 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:17:27,905 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:27,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 18:17:28,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 18:17:28,106 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:17:28,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:28,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1506332182, now seen corresponding path program 9 times [2022-12-13 18:17:28,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:28,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335473700] [2022-12-13 18:17:28,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:28,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-12-13 18:17:28,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:28,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335473700] [2022-12-13 18:17:28,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335473700] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:17:28,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224750878] [2022-12-13 18:17:28,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 18:17:28,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:17:28,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:17:28,264 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:17:28,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 18:17:28,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-13 18:17:28,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:17:28,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 18:17:28,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:17:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-12-13 18:17:28,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:17:28,545 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-12-13 18:17:28,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224750878] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:17:28,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:17:28,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2022-12-13 18:17:28,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324358363] [2022-12-13 18:17:28,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:17:28,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 18:17:28,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:28,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 18:17:28,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-12-13 18:17:28,547 INFO L87 Difference]: Start difference. First operand 121 states and 132 transitions. Second operand has 24 states, 24 states have (on average 5.083333333333333) internal successors, (122), 24 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:17:29,372 INFO L93 Difference]: Finished difference Result 452 states and 499 transitions. [2022-12-13 18:17:29,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-13 18:17:29,373 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.083333333333333) internal successors, (122), 24 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-12-13 18:17:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:17:29,374 INFO L225 Difference]: With dead ends: 452 [2022-12-13 18:17:29,374 INFO L226 Difference]: Without dead ends: 153 [2022-12-13 18:17:29,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 223 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=937, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 18:17:29,375 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 535 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 18:17:29,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 86 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 18:17:29,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-12-13 18:17:29,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 136. [2022-12-13 18:17:29,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.0814814814814815) internal successors, (146), 135 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:29,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 146 transitions. [2022-12-13 18:17:29,401 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 146 transitions. Word has length 117 [2022-12-13 18:17:29,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:17:29,401 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 146 transitions. [2022-12-13 18:17:29,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.083333333333333) internal successors, (122), 24 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:29,401 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 146 transitions. [2022-12-13 18:17:29,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-13 18:17:29,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:17:29,402 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:29,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 18:17:29,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 18:17:29,603 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:17:29,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:29,604 INFO L85 PathProgramCache]: Analyzing trace with hash 631817864, now seen corresponding path program 10 times [2022-12-13 18:17:29,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:29,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658829269] [2022-12-13 18:17:29,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:29,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-13 18:17:29,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:29,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658829269] [2022-12-13 18:17:29,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658829269] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:17:29,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112383768] [2022-12-13 18:17:29,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 18:17:29,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:17:29,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:17:29,785 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:17:29,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 18:17:29,859 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 18:17:29,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:17:29,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 18:17:29,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:17:30,040 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-13 18:17:30,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:17:30,227 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-13 18:17:30,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112383768] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:17:30,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:17:30,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2022-12-13 18:17:30,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356962366] [2022-12-13 18:17:30,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:17:30,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 18:17:30,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:30,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 18:17:30,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-12-13 18:17:30,229 INFO L87 Difference]: Start difference. First operand 136 states and 146 transitions. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:17:30,670 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2022-12-13 18:17:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 18:17:30,671 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-12-13 18:17:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:17:30,671 INFO L225 Difference]: With dead ends: 152 [2022-12-13 18:17:30,671 INFO L226 Difference]: Without dead ends: 148 [2022-12-13 18:17:30,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 249 SyntacticMatches, 10 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=236, Invalid=756, Unknown=0, NotChecked=0, Total=992 [2022-12-13 18:17:30,672 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 523 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:17:30,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 43 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 18:17:30,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-12-13 18:17:30,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 138. [2022-12-13 18:17:30,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.0802919708029197) internal successors, (148), 137 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:30,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 148 transitions. [2022-12-13 18:17:30,697 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 148 transitions. Word has length 135 [2022-12-13 18:17:30,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:17:30,697 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 148 transitions. [2022-12-13 18:17:30,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:17:30,697 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 148 transitions. [2022-12-13 18:17:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 18:17:30,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:17:30,698 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:17:30,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 18:17:30,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 18:17:30,899 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:17:30,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:17:30,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1639815466, now seen corresponding path program 11 times [2022-12-13 18:17:30,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:17:30,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554212745] [2022-12-13 18:17:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:17:30,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:17:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:17:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 14 proven. 261 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:17:46,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:17:46,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554212745] [2022-12-13 18:17:46,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554212745] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:17:46,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837669107] [2022-12-13 18:17:46,497 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 18:17:46,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:17:46,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:17:46,498 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:17:46,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 18:17:46,732 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-12-13 18:17:46,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:17:46,737 WARN L261 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 226 conjunts are in the unsatisfiable core [2022-12-13 18:17:46,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:17:46,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 18:17:46,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 18:17:46,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 18:17:50,738 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:17:50,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:17:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 18:17:54,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837669107] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:17:54,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:17:54,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 29, 23] total 120 [2022-12-13 18:17:54,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725555160] [2022-12-13 18:17:54,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:17:54,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-12-13 18:17:54,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:17:54,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-12-13 18:17:54,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=587, Invalid=13693, Unknown=0, NotChecked=0, Total=14280 [2022-12-13 18:17:54,392 INFO L87 Difference]: Start difference. First operand 138 states and 148 transitions. Second operand has 120 states, 120 states have (on average 3.025) internal successors, (363), 120 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:18:18,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:18:18,808 INFO L93 Difference]: Finished difference Result 299 states and 329 transitions. [2022-12-13 18:18:18,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-12-13 18:18:18,809 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 120 states have (on average 3.025) internal successors, (363), 120 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-12-13 18:18:18,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:18:18,810 INFO L225 Difference]: With dead ends: 299 [2022-12-13 18:18:18,810 INFO L226 Difference]: Without dead ends: 295 [2022-12-13 18:18:18,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 241 SyntacticMatches, 29 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10590 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=2012, Invalid=31294, Unknown=0, NotChecked=0, Total=33306 [2022-12-13 18:18:18,814 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 635 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 10653 mSolverCounterSat, 2309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 12962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2309 IncrementalHoareTripleChecker+Valid, 10653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-12-13 18:18:18,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 255 Invalid, 12962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2309 Valid, 10653 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-12-13 18:18:18,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-12-13 18:18:18,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 143. [2022-12-13 18:18:18,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.0845070422535212) internal successors, (154), 142 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:18:18,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 154 transitions. [2022-12-13 18:18:18,865 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 154 transitions. Word has length 137 [2022-12-13 18:18:18,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:18:18,865 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 154 transitions. [2022-12-13 18:18:18,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 120 states have (on average 3.025) internal successors, (363), 120 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:18:18,865 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 154 transitions. [2022-12-13 18:18:18,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-13 18:18:18,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:18:18,866 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:18:18,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 18:18:19,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 18:18:19,067 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:18:19,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:18:19,068 INFO L85 PathProgramCache]: Analyzing trace with hash -337097908, now seen corresponding path program 12 times [2022-12-13 18:18:19,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:18:19,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618731753] [2022-12-13 18:18:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:18:19,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:18:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:18:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-13 18:18:19,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:18:19,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618731753] [2022-12-13 18:18:19,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618731753] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:18:19,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880081109] [2022-12-13 18:18:19,264 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 18:18:19,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:18:19,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:18:19,265 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:18:19,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 18:18:19,369 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2022-12-13 18:18:19,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:18:19,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 18:18:19,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:18:19,605 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-13 18:18:19,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:18:19,789 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-12-13 18:18:19,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880081109] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:18:19,789 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:18:19,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 28 [2022-12-13 18:18:19,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490833055] [2022-12-13 18:18:19,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:18:19,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 18:18:19,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:18:19,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 18:18:19,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2022-12-13 18:18:19,791 INFO L87 Difference]: Start difference. First operand 143 states and 154 transitions. Second operand has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:18:20,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:18:20,790 INFO L93 Difference]: Finished difference Result 530 states and 577 transitions. [2022-12-13 18:18:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-13 18:18:20,790 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-12-13 18:18:20,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:18:20,791 INFO L225 Difference]: With dead ends: 530 [2022-12-13 18:18:20,791 INFO L226 Difference]: Without dead ends: 175 [2022-12-13 18:18:20,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 260 SyntacticMatches, 12 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1306, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 18:18:20,792 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 690 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 18:18:20,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 98 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 18:18:20,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-12-13 18:18:20,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 158. [2022-12-13 18:18:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.070063694267516) internal successors, (168), 157 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:18:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2022-12-13 18:18:20,838 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 139 [2022-12-13 18:18:20,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:18:20,838 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2022-12-13 18:18:20,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.642857142857143) internal successors, (102), 28 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:18:20,839 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2022-12-13 18:18:20,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-13 18:18:20,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:18:20,839 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:18:20,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 18:18:21,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:18:21,041 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:18:21,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:18:21,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1612014142, now seen corresponding path program 13 times [2022-12-13 18:18:21,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:18:21,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175718078] [2022-12-13 18:18:21,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:18:21,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:18:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:18:21,251 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 16 proven. 45 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-12-13 18:18:21,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:18:21,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175718078] [2022-12-13 18:18:21,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175718078] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:18:21,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882091955] [2022-12-13 18:18:21,252 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 18:18:21,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:18:21,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:18:21,253 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:18:21,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 18:18:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:18:21,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-13 18:18:21,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:18:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-12-13 18:18:21,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:18:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-12-13 18:18:21,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882091955] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:18:21,776 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:18:21,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 23 [2022-12-13 18:18:21,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708555138] [2022-12-13 18:18:21,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:18:21,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 18:18:21,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:18:21,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 18:18:21,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-12-13 18:18:21,778 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand has 23 states, 23 states have (on average 3.6956521739130435) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:18:22,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:18:22,154 INFO L93 Difference]: Finished difference Result 174 states and 184 transitions. [2022-12-13 18:18:22,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 18:18:22,154 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.6956521739130435) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2022-12-13 18:18:22,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:18:22,155 INFO L225 Difference]: With dead ends: 174 [2022-12-13 18:18:22,155 INFO L226 Difference]: Without dead ends: 170 [2022-12-13 18:18:22,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 294 SyntacticMatches, 12 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-12-13 18:18:22,156 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 319 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:18:22,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 46 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 18:18:22,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-12-13 18:18:22,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 160. [2022-12-13 18:18:22,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.069182389937107) internal successors, (170), 159 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:18:22,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 170 transitions. [2022-12-13 18:18:22,203 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 170 transitions. Word has length 157 [2022-12-13 18:18:22,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:18:22,203 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 170 transitions. [2022-12-13 18:18:22,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.6956521739130435) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:18:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 170 transitions. [2022-12-13 18:18:22,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 18:18:22,204 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:18:22,204 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:18:22,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 18:18:22,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:18:22,404 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:18:22,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:18:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1284366496, now seen corresponding path program 14 times [2022-12-13 18:18:22,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:18:22,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853203196] [2022-12-13 18:18:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:18:22,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:18:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:18:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 37 proven. 359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:18:45,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:18:45,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853203196] [2022-12-13 18:18:45,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853203196] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:18:45,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146095083] [2022-12-13 18:18:45,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:18:45,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:18:45,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:18:45,150 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:18:45,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 18:18:45,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 18:18:45,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:18:45,265 WARN L261 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 264 conjunts are in the unsatisfiable core [2022-12-13 18:18:45,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:18:45,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 18:18:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:18:51,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:18:56,206 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 18:18:56,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146095083] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:18:56,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:18:56,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 34, 27] total 134 [2022-12-13 18:18:56,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182838775] [2022-12-13 18:18:56,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:18:56,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-12-13 18:18:56,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:18:56,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-12-13 18:18:56,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=774, Invalid=17048, Unknown=0, NotChecked=0, Total=17822 [2022-12-13 18:18:56,211 INFO L87 Difference]: Start difference. First operand 160 states and 170 transitions. Second operand has 134 states, 134 states have (on average 3.171641791044776) internal successors, (425), 134 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:19:22,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:19:22,683 INFO L93 Difference]: Finished difference Result 323 states and 350 transitions. [2022-12-13 18:19:22,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-12-13 18:19:22,683 INFO L78 Accepts]: Start accepts. Automaton has has 134 states, 134 states have (on average 3.171641791044776) internal successors, (425), 134 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2022-12-13 18:19:22,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:19:22,684 INFO L225 Difference]: With dead ends: 323 [2022-12-13 18:19:22,684 INFO L226 Difference]: Without dead ends: 319 [2022-12-13 18:19:22,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 276 SyntacticMatches, 46 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13452 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=2205, Invalid=34467, Unknown=0, NotChecked=0, Total=36672 [2022-12-13 18:19:22,686 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 409 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 12986 mSolverCounterSat, 1931 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 14917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1931 IncrementalHoareTripleChecker+Valid, 12986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-12-13 18:19:22,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 325 Invalid, 14917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1931 Valid, 12986 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-12-13 18:19:22,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-12-13 18:19:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 165. [2022-12-13 18:19:22,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.0731707317073171) internal successors, (176), 164 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:19:22,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 176 transitions. [2022-12-13 18:19:22,761 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 176 transitions. Word has length 159 [2022-12-13 18:19:22,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:19:22,762 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 176 transitions. [2022-12-13 18:19:22,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 3.171641791044776) internal successors, (425), 134 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:19:22,762 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 176 transitions. [2022-12-13 18:19:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-13 18:19:22,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:19:22,763 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:19:22,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 18:19:22,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 18:19:22,964 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:19:22,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:19:22,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1567351806, now seen corresponding path program 15 times [2022-12-13 18:19:22,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:19:22,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584387953] [2022-12-13 18:19:22,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:19:22,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:19:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:19:23,225 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-12-13 18:19:23,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:19:23,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584387953] [2022-12-13 18:19:23,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584387953] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:19:23,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716254131] [2022-12-13 18:19:23,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 18:19:23,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:19:23,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:19:23,226 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:19:23,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 18:19:23,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-12-13 18:19:23,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:19:23,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 18:19:23,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:19:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-12-13 18:19:23,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:19:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-12-13 18:19:23,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716254131] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:19:23,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:19:23,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 32 [2022-12-13 18:19:23,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440164572] [2022-12-13 18:19:23,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:19:23,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-13 18:19:23,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:19:23,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-13 18:19:23,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2022-12-13 18:19:23,739 INFO L87 Difference]: Start difference. First operand 165 states and 176 transitions. Second operand has 32 states, 32 states have (on average 3.6875) internal successors, (118), 32 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:19:25,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:19:25,007 INFO L93 Difference]: Finished difference Result 608 states and 655 transitions. [2022-12-13 18:19:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 18:19:25,007 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.6875) internal successors, (118), 32 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2022-12-13 18:19:25,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:19:25,008 INFO L225 Difference]: With dead ends: 608 [2022-12-13 18:19:25,008 INFO L226 Difference]: Without dead ends: 197 [2022-12-13 18:19:25,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 307 SyntacticMatches, 14 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 803 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=426, Invalid=1736, Unknown=0, NotChecked=0, Total=2162 [2022-12-13 18:19:25,009 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 867 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:19:25,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 112 Invalid, 2326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 18:19:25,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-12-13 18:19:25,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 180. [2022-12-13 18:19:25,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.0614525139664805) internal successors, (190), 179 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:19:25,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 190 transitions. [2022-12-13 18:19:25,082 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 190 transitions. Word has length 161 [2022-12-13 18:19:25,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:19:25,082 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 190 transitions. [2022-12-13 18:19:25,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.6875) internal successors, (118), 32 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:19:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 190 transitions. [2022-12-13 18:19:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-12-13 18:19:25,083 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:19:25,083 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:19:25,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 18:19:25,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 18:19:25,285 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:19:25,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:19:25,286 INFO L85 PathProgramCache]: Analyzing trace with hash -150441612, now seen corresponding path program 16 times [2022-12-13 18:19:25,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:19:25,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806926068] [2022-12-13 18:19:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:19:25,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:19:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:19:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 25 proven. 60 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-12-13 18:19:25,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:19:25,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806926068] [2022-12-13 18:19:25,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806926068] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:19:25,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109810063] [2022-12-13 18:19:25,551 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 18:19:25,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:19:25,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:19:25,552 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:19:25,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 18:19:25,643 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 18:19:25,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:19:25,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 18:19:25,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:19:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-12-13 18:19:25,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:19:26,204 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-12-13 18:19:26,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109810063] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:19:26,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:19:26,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 32 [2022-12-13 18:19:26,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611273872] [2022-12-13 18:19:26,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:19:26,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-13 18:19:26,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:19:26,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-13 18:19:26,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2022-12-13 18:19:26,207 INFO L87 Difference]: Start difference. First operand 180 states and 190 transitions. Second operand has 32 states, 32 states have (on average 3.3125) internal successors, (106), 32 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:19:26,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:19:26,991 INFO L93 Difference]: Finished difference Result 196 states and 206 transitions. [2022-12-13 18:19:26,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 18:19:26,992 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.3125) internal successors, (106), 32 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2022-12-13 18:19:26,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:19:26,993 INFO L225 Difference]: With dead ends: 196 [2022-12-13 18:19:26,993 INFO L226 Difference]: Without dead ends: 192 [2022-12-13 18:19:26,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 329 SyntacticMatches, 14 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 772 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=392, Invalid=1330, Unknown=0, NotChecked=0, Total=1722 [2022-12-13 18:19:26,994 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1017 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 18:19:26,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 42 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 18:19:26,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-12-13 18:19:27,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 182. [2022-12-13 18:19:27,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.0607734806629834) internal successors, (192), 181 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:19:27,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 192 transitions. [2022-12-13 18:19:27,071 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 192 transitions. Word has length 179 [2022-12-13 18:19:27,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:19:27,071 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 192 transitions. [2022-12-13 18:19:27,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.3125) internal successors, (106), 32 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:19:27,071 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 192 transitions. [2022-12-13 18:19:27,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-12-13 18:19:27,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:19:27,072 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:19:27,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 18:19:27,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:19:27,272 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:19:27,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:19:27,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1507735830, now seen corresponding path program 17 times [2022-12-13 18:19:27,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:19:27,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294741739] [2022-12-13 18:19:27,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:19:27,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:19:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:20:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 62 proven. 477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:20:01,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:20:01,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294741739] [2022-12-13 18:20:01,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294741739] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:20:01,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458627521] [2022-12-13 18:20:01,985 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 18:20:01,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:20:01,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:20:01,986 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:20:01,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 18:20:02,379 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-12-13 18:20:02,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:20:02,385 WARN L261 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 306 conjunts are in the unsatisfiable core [2022-12-13 18:20:02,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:20:02,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 18:20:09,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 18:20:09,593 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 18:20:09,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 14 [2022-12-13 18:20:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 539 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:20:09,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:20:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-12-13 18:20:16,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458627521] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:20:16,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:20:16,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 39, 31] total 146 [2022-12-13 18:20:16,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22421898] [2022-12-13 18:20:16,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:20:16,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 146 states [2022-12-13 18:20:16,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:20:16,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2022-12-13 18:20:16,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=964, Invalid=20206, Unknown=0, NotChecked=0, Total=21170 [2022-12-13 18:20:16,837 INFO L87 Difference]: Start difference. First operand 182 states and 192 transitions. Second operand has 146 states, 146 states have (on average 3.006849315068493) internal successors, (439), 146 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:21:00,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:21:00,116 INFO L93 Difference]: Finished difference Result 754 states and 811 transitions. [2022-12-13 18:21:00,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-12-13 18:21:00,117 INFO L78 Accepts]: Start accepts. Automaton has has 146 states, 146 states have (on average 3.006849315068493) internal successors, (439), 146 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2022-12-13 18:21:00,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:21:00,118 INFO L225 Difference]: With dead ends: 754 [2022-12-13 18:21:00,118 INFO L226 Difference]: Without dead ends: 548 [2022-12-13 18:21:00,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 314 SyntacticMatches, 69 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23375 ImplicationChecksByTransitivity, 51.7s TimeCoverageRelationStatistics Valid=4054, Invalid=55726, Unknown=0, NotChecked=0, Total=59780 [2022-12-13 18:21:00,121 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 401 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 17539 mSolverCounterSat, 3189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 20728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3189 IncrementalHoareTripleChecker+Valid, 17539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:21:00,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 498 Invalid, 20728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3189 Valid, 17539 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2022-12-13 18:21:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-12-13 18:21:00,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 403. [2022-12-13 18:21:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 402 states have (on average 1.0696517412935322) internal successors, (430), 402 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:21:00,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 430 transitions. [2022-12-13 18:21:00,324 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 430 transitions. Word has length 181 [2022-12-13 18:21:00,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:21:00,324 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 430 transitions. [2022-12-13 18:21:00,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 146 states, 146 states have (on average 3.006849315068493) internal successors, (439), 146 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:21:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 430 transitions. [2022-12-13 18:21:00,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-12-13 18:21:00,325 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:21:00,325 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:21:00,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-12-13 18:21:00,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:21:00,527 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:21:00,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:21:00,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1419481946, now seen corresponding path program 18 times [2022-12-13 18:21:00,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:21:00,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129569370] [2022-12-13 18:21:00,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:21:00,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:21:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:21:00,842 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-12-13 18:21:00,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:21:00,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129569370] [2022-12-13 18:21:00,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129569370] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:21:00,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122418265] [2022-12-13 18:21:00,842 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 18:21:00,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:21:00,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:21:00,843 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:21:00,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-12-13 18:21:01,013 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-12-13 18:21:01,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:21:01,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 18:21:01,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:21:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-12-13 18:21:01,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:21:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-12-13 18:21:01,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122418265] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:21:01,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:21:01,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 29 [2022-12-13 18:21:01,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161307124] [2022-12-13 18:21:01,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:21:01,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-13 18:21:01,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:21:01,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-13 18:21:01,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2022-12-13 18:21:01,360 INFO L87 Difference]: Start difference. First operand 403 states and 430 transitions. Second operand has 29 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 29 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:21:02,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:21:02,041 INFO L93 Difference]: Finished difference Result 563 states and 606 transitions. [2022-12-13 18:21:02,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 18:21:02,041 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 29 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2022-12-13 18:21:02,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:21:02,041 INFO L225 Difference]: With dead ends: 563 [2022-12-13 18:21:02,041 INFO L226 Difference]: Without dead ends: 214 [2022-12-13 18:21:02,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 344 SyntacticMatches, 16 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=430, Invalid=1052, Unknown=0, NotChecked=0, Total=1482 [2022-12-13 18:21:02,042 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1334 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 18:21:02,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 40 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 18:21:02,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-12-13 18:21:02,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 204. [2022-12-13 18:21:02,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 1.0541871921182266) internal successors, (214), 203 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:21:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 214 transitions. [2022-12-13 18:21:02,180 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 214 transitions. Word has length 185 [2022-12-13 18:21:02,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:21:02,180 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 214 transitions. [2022-12-13 18:21:02,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 29 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:21:02,180 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 214 transitions. [2022-12-13 18:21:02,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-12-13 18:21:02,181 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:21:02,181 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:21:02,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-12-13 18:21:02,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:21:02,381 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:21:02,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:21:02,382 INFO L85 PathProgramCache]: Analyzing trace with hash -442087860, now seen corresponding path program 19 times [2022-12-13 18:21:02,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:21:02,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760312126] [2022-12-13 18:21:02,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:21:02,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:21:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:21:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 80 proven. 624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:21:49,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:21:49,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760312126] [2022-12-13 18:21:49,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760312126] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:21:49,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56055580] [2022-12-13 18:21:49,066 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 18:21:49,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:21:49,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:21:49,067 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:21:49,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f5b2eb2-3cf4-4bcc-b4cc-2d785d561fcf/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-12-13 18:21:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:21:49,170 WARN L261 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 348 conjunts are in the unsatisfiable core [2022-12-13 18:21:49,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:21:49,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 18:22:01,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 18:22:01,282 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 18:22:01,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 14 [2022-12-13 18:22:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 0 proven. 704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:22:01,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:22:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 0 proven. 640 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-12-13 18:22:13,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56055580] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:22:13,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:22:13,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 44, 35] total 169 [2022-12-13 18:22:13,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841757310] [2022-12-13 18:22:13,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:22:13,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 169 states [2022-12-13 18:22:13,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:22:13,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2022-12-13 18:22:13,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1012, Invalid=27380, Unknown=0, NotChecked=0, Total=28392 [2022-12-13 18:22:13,105 INFO L87 Difference]: Start difference. First operand 204 states and 214 transitions. Second operand has 169 states, 169 states have (on average 2.9763313609467454) internal successors, (503), 169 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)