./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/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 a158f4486af48c98a7df56cba98940178e8617d42ff04ad885cda239ab95e10a --- 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 12:47:24,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:47:24,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:47:24,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:47:24,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:47:24,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:47:24,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:47:24,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:47:24,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:47:24,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:47:24,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:47:24,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:47:24,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:47:24,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:47:24,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:47:24,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:47:24,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:47:24,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:47:24,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:47:24,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:47:24,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:47:24,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:47:24,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:47:24,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:47:24,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:47:24,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:47:24,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:47:24,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:47:24,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:47:24,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:47:24,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:47:24,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:47:24,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:47:24,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:47:24,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:47:24,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:47:24,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:47:24,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:47:24,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:47:24,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:47:24,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:47:24,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 12:47:24,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:47:24,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:47:24,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:47:24,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:47:24,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:47:24,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:47:24,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:47:24,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:47:24,461 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:47:24,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:47:24,462 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:47:24,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:47:24,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:47:24,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:47:24,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:47:24,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:47:24,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:47:24,463 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:47:24,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:47:24,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:47:24,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:47:24,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:47:24,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:47:24,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:47:24,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:47:24,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:47:24,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:47:24,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:47:24,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:47:24,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:47:24,465 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:47:24,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:47:24,465 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:47:24,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:47:24,465 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:47:24,465 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a158f4486af48c98a7df56cba98940178e8617d42ff04ad885cda239ab95e10a [2022-12-13 12:47:24,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:47:24,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:47:24,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:47:24,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:47:24,674 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:47:24,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 12:47:27,247 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:47:27,447 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:47:27,447 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 12:47:27,456 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/data/9ed33a0f7/a86c06d107a04ab5a74c72112fb37831/FLAGa1074e642 [2022-12-13 12:47:27,470 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/data/9ed33a0f7/a86c06d107a04ab5a74c72112fb37831 [2022-12-13 12:47:27,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:47:27,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:47:27,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:47:27,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:47:27,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:47:27,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44792a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27, skipping insertion in model container [2022-12-13 12:47:27,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:47:27,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:47:27,676 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7119,7132] [2022-12-13 12:47:27,689 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9806,9819] [2022-12-13 12:47:27,695 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10897,10910] [2022-12-13 12:47:27,699 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11503,11516] [2022-12-13 12:47:27,706 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12922,12935] [2022-12-13 12:47:27,709 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13528,13541] [2022-12-13 12:47:27,714 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14457,14470] [2022-12-13 12:47:27,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:47:27,753 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:47:27,787 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7119,7132] [2022-12-13 12:47:27,794 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9806,9819] [2022-12-13 12:47:27,798 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10897,10910] [2022-12-13 12:47:27,801 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11503,11516] [2022-12-13 12:47:27,805 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12922,12935] [2022-12-13 12:47:27,808 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13528,13541] [2022-12-13 12:47:27,811 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_d1450c95-e0c5-4906-8812-e7b2191b2b2d/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14457,14470] [2022-12-13 12:47:27,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:47:27,843 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:47:27,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27 WrapperNode [2022-12-13 12:47:27,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:47:27,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:47:27,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:47:27,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:47:27,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,890 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 973 [2022-12-13 12:47:27,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:47:27,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:47:27,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:47:27,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:47:27,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,915 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:47:27,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:47:27,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:47:27,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:47:27,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (1/1) ... [2022-12-13 12:47:27,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:47:27,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:47:27,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:47:27,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:47:27,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:47:27,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:47:27,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:47:27,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:47:28,075 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:47:28,076 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:47:28,669 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:47:28,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:47:28,677 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:47:28,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:47:28 BoogieIcfgContainer [2022-12-13 12:47:28,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:47:28,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:47:28,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:47:28,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:47:28,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:47:27" (1/3) ... [2022-12-13 12:47:28,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42326bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:47:28, skipping insertion in model container [2022-12-13 12:47:28,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:47:27" (2/3) ... [2022-12-13 12:47:28,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42326bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:47:28, skipping insertion in model container [2022-12-13 12:47:28,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:47:28" (3/3) ... [2022-12-13 12:47:28,685 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 12:47:28,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:47:28,699 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-13 12:47:28,736 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:47:28,742 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;@9ebfe2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:47:28,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 12:47:28,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 198 states have (on average 1.8232323232323233) internal successors, (361), 206 states have internal predecessors, (361), 0 states have call successors, (0), 0 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 12:47:28,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 12:47:28,753 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:28,753 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] [2022-12-13 12:47:28,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:28,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:28,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1899747950, now seen corresponding path program 1 times [2022-12-13 12:47:28,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:28,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333161313] [2022-12-13 12:47:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:28,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:29,038 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 12:47:29,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:29,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333161313] [2022-12-13 12:47:29,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333161313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:29,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:29,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:47:29,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374172260] [2022-12-13 12:47:29,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:29,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:47:29,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:29,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:47:29,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:47:29,067 INFO L87 Difference]: Start difference. First operand has 207 states, 198 states have (on average 1.8232323232323233) internal successors, (361), 206 states have internal predecessors, (361), 0 states have call successors, (0), 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 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 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 12:47:29,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:29,340 INFO L93 Difference]: Finished difference Result 425 states and 704 transitions. [2022-12-13 12:47:29,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:47:29,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-12-13 12:47:29,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:29,353 INFO L225 Difference]: With dead ends: 425 [2022-12-13 12:47:29,353 INFO L226 Difference]: Without dead ends: 256 [2022-12-13 12:47:29,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:47:29,359 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 1108 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:29,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 310 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:47:29,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-12-13 12:47:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 232. [2022-12-13 12:47:29,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 225 states have (on average 1.3377777777777777) internal successors, (301), 231 states have internal predecessors, (301), 0 states have call successors, (0), 0 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 12:47:29,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 301 transitions. [2022-12-13 12:47:29,405 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 301 transitions. Word has length 46 [2022-12-13 12:47:29,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:29,406 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 301 transitions. [2022-12-13 12:47:29,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 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 12:47:29,406 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 301 transitions. [2022-12-13 12:47:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-13 12:47:29,407 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:29,407 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] [2022-12-13 12:47:29,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:47:29,408 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:29,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash -121525429, now seen corresponding path program 1 times [2022-12-13 12:47:29,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:29,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741042209] [2022-12-13 12:47:29,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:29,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:29,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:47:29,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:29,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741042209] [2022-12-13 12:47:29,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741042209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:29,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:29,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:47:29,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040968695] [2022-12-13 12:47:29,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:29,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:47:29,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:29,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:47:29,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:47:29,508 INFO L87 Difference]: Start difference. First operand 232 states and 301 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 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 12:47:29,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:29,629 INFO L93 Difference]: Finished difference Result 413 states and 548 transitions. [2022-12-13 12:47:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:47:29,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2022-12-13 12:47:29,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:29,631 INFO L225 Difference]: With dead ends: 413 [2022-12-13 12:47:29,631 INFO L226 Difference]: Without dead ends: 219 [2022-12-13 12:47:29,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:47:29,633 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 552 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:29,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 129 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:47:29,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-12-13 12:47:29,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-12-13 12:47:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 212 states have (on average 1.3396226415094339) internal successors, (284), 218 states have internal predecessors, (284), 0 states have call successors, (0), 0 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 12:47:29,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 284 transitions. [2022-12-13 12:47:29,655 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 284 transitions. Word has length 47 [2022-12-13 12:47:29,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:29,655 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 284 transitions. [2022-12-13 12:47:29,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 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 12:47:29,656 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 284 transitions. [2022-12-13 12:47:29,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-13 12:47:29,657 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:29,657 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] [2022-12-13 12:47:29,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:47:29,658 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:29,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:29,658 INFO L85 PathProgramCache]: Analyzing trace with hash 414043727, now seen corresponding path program 1 times [2022-12-13 12:47:29,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:29,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557127831] [2022-12-13 12:47:29,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:29,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:29,767 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 12:47:29,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:29,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557127831] [2022-12-13 12:47:29,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557127831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:29,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:29,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:47:29,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296052711] [2022-12-13 12:47:29,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:29,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:47:29,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:29,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:47:29,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:47:29,770 INFO L87 Difference]: Start difference. First operand 219 states and 284 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 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 12:47:29,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:29,882 INFO L93 Difference]: Finished difference Result 400 states and 529 transitions. [2022-12-13 12:47:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:47:29,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-12-13 12:47:29,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:29,884 INFO L225 Difference]: With dead ends: 400 [2022-12-13 12:47:29,884 INFO L226 Difference]: Without dead ends: 214 [2022-12-13 12:47:29,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:47:29,886 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 518 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:29,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 126 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:47:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-12-13 12:47:29,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-12-13 12:47:29,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 207 states have (on average 1.3333333333333333) internal successors, (276), 213 states have internal predecessors, (276), 0 states have call successors, (0), 0 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 12:47:29,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 276 transitions. [2022-12-13 12:47:29,908 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 276 transitions. Word has length 48 [2022-12-13 12:47:29,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:29,908 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 276 transitions. [2022-12-13 12:47:29,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 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 12:47:29,909 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 276 transitions. [2022-12-13 12:47:29,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 12:47:29,910 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:29,910 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 12:47:29,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:47:29,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:29,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:29,911 INFO L85 PathProgramCache]: Analyzing trace with hash -453133940, now seen corresponding path program 1 times [2022-12-13 12:47:29,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:29,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418225811] [2022-12-13 12:47:29,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:29,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:30,170 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 12:47:30,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:30,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418225811] [2022-12-13 12:47:30,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418225811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:30,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:30,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:47:30,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447885039] [2022-12-13 12:47:30,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:30,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 12:47:30,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:30,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 12:47:30,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:47:30,173 INFO L87 Difference]: Start difference. First operand 214 states and 276 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 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 12:47:30,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:30,591 INFO L93 Difference]: Finished difference Result 523 states and 711 transitions. [2022-12-13 12:47:30,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:47:30,592 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 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) Word has length 49 [2022-12-13 12:47:30,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:30,593 INFO L225 Difference]: With dead ends: 523 [2022-12-13 12:47:30,593 INFO L226 Difference]: Without dead ends: 518 [2022-12-13 12:47:30,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 12:47:30,595 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 931 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:30,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 589 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:47:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-12-13 12:47:30,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 214. [2022-12-13 12:47:30,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 207 states have (on average 1.328502415458937) internal successors, (275), 213 states have internal predecessors, (275), 0 states have call successors, (0), 0 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 12:47:30,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 275 transitions. [2022-12-13 12:47:30,615 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 275 transitions. Word has length 49 [2022-12-13 12:47:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:30,615 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 275 transitions. [2022-12-13 12:47:30,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 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 12:47:30,615 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 275 transitions. [2022-12-13 12:47:30,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 12:47:30,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:30,616 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 12:47:30,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:47:30,616 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:30,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1459063162, now seen corresponding path program 1 times [2022-12-13 12:47:30,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:30,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792331213] [2022-12-13 12:47:30,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:30,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:30,805 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 12:47:30,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:30,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792331213] [2022-12-13 12:47:30,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792331213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:30,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:30,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:47:30,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790807379] [2022-12-13 12:47:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:30,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 12:47:30,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 12:47:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:47:30,808 INFO L87 Difference]: Start difference. First operand 214 states and 275 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 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 12:47:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:31,289 INFO L93 Difference]: Finished difference Result 527 states and 714 transitions. [2022-12-13 12:47:31,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:47:31,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 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) Word has length 49 [2022-12-13 12:47:31,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:31,292 INFO L225 Difference]: With dead ends: 527 [2022-12-13 12:47:31,292 INFO L226 Difference]: Without dead ends: 428 [2022-12-13 12:47:31,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-13 12:47:31,293 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1034 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:31,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 785 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:47:31,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-12-13 12:47:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 214. [2022-12-13 12:47:31,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 207 states have (on average 1.3236714975845412) internal successors, (274), 213 states have internal predecessors, (274), 0 states have call successors, (0), 0 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 12:47:31,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 274 transitions. [2022-12-13 12:47:31,308 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 274 transitions. Word has length 49 [2022-12-13 12:47:31,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:31,308 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 274 transitions. [2022-12-13 12:47:31,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 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 12:47:31,308 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 274 transitions. [2022-12-13 12:47:31,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 12:47:31,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:31,309 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 12:47:31,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:47:31,309 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:31,310 INFO L85 PathProgramCache]: Analyzing trace with hash 8857914, now seen corresponding path program 1 times [2022-12-13 12:47:31,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:31,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712384767] [2022-12-13 12:47:31,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:31,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:31,462 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 12:47:31,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:31,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712384767] [2022-12-13 12:47:31,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712384767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:31,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:31,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 12:47:31,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914038923] [2022-12-13 12:47:31,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:31,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:47:31,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:31,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:47:31,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:47:31,464 INFO L87 Difference]: Start difference. First operand 214 states and 274 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 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 12:47:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:31,711 INFO L93 Difference]: Finished difference Result 454 states and 597 transitions. [2022-12-13 12:47:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:47:31,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 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) Word has length 49 [2022-12-13 12:47:31,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:31,713 INFO L225 Difference]: With dead ends: 454 [2022-12-13 12:47:31,713 INFO L226 Difference]: Without dead ends: 332 [2022-12-13 12:47:31,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-12-13 12:47:31,714 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 842 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:31,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 418 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:47:31,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-12-13 12:47:31,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 214. [2022-12-13 12:47:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 207 states have (on average 1.318840579710145) internal successors, (273), 213 states have internal predecessors, (273), 0 states have call successors, (0), 0 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 12:47:31,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 273 transitions. [2022-12-13 12:47:31,735 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 273 transitions. Word has length 49 [2022-12-13 12:47:31,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:31,736 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 273 transitions. [2022-12-13 12:47:31,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 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 12:47:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 273 transitions. [2022-12-13 12:47:31,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 12:47:31,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:31,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:31,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:47:31,737 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:31,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1308237609, now seen corresponding path program 1 times [2022-12-13 12:47:31,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:31,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853890476] [2022-12-13 12:47:31,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:31,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:32,113 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 12:47:32,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:32,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853890476] [2022-12-13 12:47:32,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853890476] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:32,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:32,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 12:47:32,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217971127] [2022-12-13 12:47:32,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:32,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:47:32,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:32,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:47:32,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:47:32,115 INFO L87 Difference]: Start difference. First operand 214 states and 273 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 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 12:47:32,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:32,658 INFO L93 Difference]: Finished difference Result 452 states and 615 transitions. [2022-12-13 12:47:32,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 12:47:32,658 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 12:47:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:32,660 INFO L225 Difference]: With dead ends: 452 [2022-12-13 12:47:32,660 INFO L226 Difference]: Without dead ends: 436 [2022-12-13 12:47:32,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-12-13 12:47:32,661 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 997 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:32,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1715 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:47:32,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-12-13 12:47:32,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 198. [2022-12-13 12:47:32,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.3160621761658031) internal successors, (254), 197 states have internal predecessors, (254), 0 states have call successors, (0), 0 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 12:47:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 254 transitions. [2022-12-13 12:47:32,693 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 254 transitions. Word has length 51 [2022-12-13 12:47:32,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:32,694 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 254 transitions. [2022-12-13 12:47:32,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 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 12:47:32,694 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 254 transitions. [2022-12-13 12:47:32,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 12:47:32,694 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:32,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:32,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:47:32,695 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:32,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:32,695 INFO L85 PathProgramCache]: Analyzing trace with hash 766441193, now seen corresponding path program 1 times [2022-12-13 12:47:32,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:32,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982201820] [2022-12-13 12:47:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:32,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:33,293 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 12:47:33,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:33,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982201820] [2022-12-13 12:47:33,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982201820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:33,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:33,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-13 12:47:33,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549587642] [2022-12-13 12:47:33,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:33,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 12:47:33,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:33,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 12:47:33,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-12-13 12:47:33,295 INFO L87 Difference]: Start difference. First operand 198 states and 254 transitions. Second operand has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 0 states have call successors, (0), 0 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 12:47:34,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:34,510 INFO L93 Difference]: Finished difference Result 446 states and 598 transitions. [2022-12-13 12:47:34,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 12:47:34,510 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 0 states have call successors, (0), 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 12:47:34,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:34,512 INFO L225 Difference]: With dead ends: 446 [2022-12-13 12:47:34,512 INFO L226 Difference]: Without dead ends: 360 [2022-12-13 12:47:34,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 12:47:34,513 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1020 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:34,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 1702 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 12:47:34,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-12-13 12:47:34,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 204. [2022-12-13 12:47:34,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.3165829145728642) internal successors, (262), 203 states have internal predecessors, (262), 0 states have call successors, (0), 0 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 12:47:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 262 transitions. [2022-12-13 12:47:34,544 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 262 transitions. Word has length 51 [2022-12-13 12:47:34,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:34,544 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 262 transitions. [2022-12-13 12:47:34,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 0 states have call successors, (0), 0 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 12:47:34,545 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 262 transitions. [2022-12-13 12:47:34,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 12:47:34,545 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:34,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:34,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:47:34,546 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:34,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:34,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1014075955, now seen corresponding path program 1 times [2022-12-13 12:47:34,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:34,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913665515] [2022-12-13 12:47:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:34,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:34,907 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 12:47:34,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:34,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913665515] [2022-12-13 12:47:34,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913665515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:34,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:34,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 12:47:34,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834143348] [2022-12-13 12:47:34,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:34,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 12:47:34,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:34,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 12:47:34,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 12:47:34,908 INFO L87 Difference]: Start difference. First operand 204 states and 262 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 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 12:47:35,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:35,628 INFO L93 Difference]: Finished difference Result 418 states and 574 transitions. [2022-12-13 12:47:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 12:47:35,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 12:47:35,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:35,630 INFO L225 Difference]: With dead ends: 418 [2022-12-13 12:47:35,631 INFO L226 Difference]: Without dead ends: 325 [2022-12-13 12:47:35,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-12-13 12:47:35,632 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 689 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:35,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 1323 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:47:35,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-12-13 12:47:35,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 193. [2022-12-13 12:47:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 189 states have (on average 1.3174603174603174) internal successors, (249), 192 states have internal predecessors, (249), 0 states have call successors, (0), 0 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 12:47:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 249 transitions. [2022-12-13 12:47:35,655 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 249 transitions. Word has length 51 [2022-12-13 12:47:35,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:35,656 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 249 transitions. [2022-12-13 12:47:35,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 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 12:47:35,656 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 249 transitions. [2022-12-13 12:47:35,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-13 12:47:35,656 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:35,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:35,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:47:35,656 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:35,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:35,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1721906586, now seen corresponding path program 1 times [2022-12-13 12:47:35,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:35,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822167024] [2022-12-13 12:47:35,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:35,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:35,777 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 12:47:35,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:35,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822167024] [2022-12-13 12:47:35,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822167024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:35,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:35,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:47:35,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026678323] [2022-12-13 12:47:35,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:35,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 12:47:35,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:35,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 12:47:35,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:47:35,779 INFO L87 Difference]: Start difference. First operand 193 states and 249 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 12:47:36,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:36,124 INFO L93 Difference]: Finished difference Result 436 states and 596 transitions. [2022-12-13 12:47:36,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 12:47:36,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-12-13 12:47:36,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:36,126 INFO L225 Difference]: With dead ends: 436 [2022-12-13 12:47:36,126 INFO L226 Difference]: Without dead ends: 324 [2022-12-13 12:47:36,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-12-13 12:47:36,128 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 778 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:36,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 466 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:47:36,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-12-13 12:47:36,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 193. [2022-12-13 12:47:36,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 189 states have (on average 1.306878306878307) internal successors, (247), 192 states have internal predecessors, (247), 0 states have call successors, (0), 0 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 12:47:36,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-12-13 12:47:36,153 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 52 [2022-12-13 12:47:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:36,154 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-12-13 12:47:36,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 12:47:36,154 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-12-13 12:47:36,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-13 12:47:36,154 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:36,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:36,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:47:36,154 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:36,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:36,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1294616090, now seen corresponding path program 1 times [2022-12-13 12:47:36,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:36,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483586255] [2022-12-13 12:47:36,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:36,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:36,281 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 12:47:36,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:36,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483586255] [2022-12-13 12:47:36,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483586255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:36,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:36,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:47:36,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747477259] [2022-12-13 12:47:36,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:36,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 12:47:36,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 12:47:36,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:47:36,283 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 12:47:36,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:36,656 INFO L93 Difference]: Finished difference Result 494 states and 671 transitions. [2022-12-13 12:47:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:47:36,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-12-13 12:47:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:36,658 INFO L225 Difference]: With dead ends: 494 [2022-12-13 12:47:36,658 INFO L226 Difference]: Without dead ends: 487 [2022-12-13 12:47:36,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-12-13 12:47:36,659 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 834 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:36,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 494 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 12:47:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-12-13 12:47:36,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 193. [2022-12-13 12:47:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 189 states have (on average 1.2962962962962963) internal successors, (245), 192 states have internal predecessors, (245), 0 states have call successors, (0), 0 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 12:47:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 245 transitions. [2022-12-13 12:47:36,705 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 245 transitions. Word has length 52 [2022-12-13 12:47:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:36,705 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 245 transitions. [2022-12-13 12:47:36,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 12:47:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 245 transitions. [2022-12-13 12:47:36,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-13 12:47:36,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:36,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:36,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:47:36,706 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:36,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:36,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1671010270, now seen corresponding path program 1 times [2022-12-13 12:47:36,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:36,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072311912] [2022-12-13 12:47:36,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:36,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:37,252 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 12:47:37,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:37,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072311912] [2022-12-13 12:47:37,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072311912] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:37,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:37,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-12-13 12:47:37,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43767965] [2022-12-13 12:47:37,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:37,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 12:47:37,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:37,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 12:47:37,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:47:37,255 INFO L87 Difference]: Start difference. First operand 193 states and 245 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 12:47:38,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:38,167 INFO L93 Difference]: Finished difference Result 291 states and 381 transitions. [2022-12-13 12:47:38,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 12:47:38,167 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-12-13 12:47:38,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:38,168 INFO L225 Difference]: With dead ends: 291 [2022-12-13 12:47:38,168 INFO L226 Difference]: Without dead ends: 205 [2022-12-13 12:47:38,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812 [2022-12-13 12:47:38,169 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 250 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:38,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1283 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:47:38,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-12-13 12:47:38,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 183. [2022-12-13 12:47:38,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 180 states have (on average 1.2944444444444445) internal successors, (233), 182 states have internal predecessors, (233), 0 states have call successors, (0), 0 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 12:47:38,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 233 transitions. [2022-12-13 12:47:38,194 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 233 transitions. Word has length 52 [2022-12-13 12:47:38,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:38,194 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 233 transitions. [2022-12-13 12:47:38,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 0 states have call successors, (0), 0 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 12:47:38,194 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 233 transitions. [2022-12-13 12:47:38,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 12:47:38,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:38,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:38,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 12:47:38,195 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1899159370, now seen corresponding path program 1 times [2022-12-13 12:47:38,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:38,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709303625] [2022-12-13 12:47:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:38,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:38,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:47:38,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:38,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709303625] [2022-12-13 12:47:38,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709303625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:38,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:38,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-13 12:47:38,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681831783] [2022-12-13 12:47:38,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:38,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 12:47:38,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:38,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 12:47:38,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-12-13 12:47:38,648 INFO L87 Difference]: Start difference. First operand 183 states and 233 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 12:47:39,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:39,445 INFO L93 Difference]: Finished difference Result 395 states and 526 transitions. [2022-12-13 12:47:39,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 12:47:39,446 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-12-13 12:47:39,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:39,447 INFO L225 Difference]: With dead ends: 395 [2022-12-13 12:47:39,447 INFO L226 Difference]: Without dead ends: 389 [2022-12-13 12:47:39,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=856, Unknown=0, NotChecked=0, Total=1056 [2022-12-13 12:47:39,447 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 554 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:39,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1688 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:47:39,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-12-13 12:47:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 189. [2022-12-13 12:47:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 186 states have (on average 1.2956989247311828) internal successors, (241), 188 states have internal predecessors, (241), 0 states have call successors, (0), 0 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 12:47:39,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 241 transitions. [2022-12-13 12:47:39,476 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 241 transitions. Word has length 54 [2022-12-13 12:47:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:39,477 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 241 transitions. [2022-12-13 12:47:39,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 12:47:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 241 transitions. [2022-12-13 12:47:39,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 12:47:39,477 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:39,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:39,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 12:47:39,478 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:39,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:39,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1464456906, now seen corresponding path program 1 times [2022-12-13 12:47:39,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:39,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500153339] [2022-12-13 12:47:39,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:39,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:39,900 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 12:47:39,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:39,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500153339] [2022-12-13 12:47:39,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500153339] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:39,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:39,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-13 12:47:39,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825018783] [2022-12-13 12:47:39,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:39,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 12:47:39,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:39,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 12:47:39,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-12-13 12:47:39,901 INFO L87 Difference]: Start difference. First operand 189 states and 241 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 12:47:40,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:40,633 INFO L93 Difference]: Finished difference Result 219 states and 269 transitions. [2022-12-13 12:47:40,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 12:47:40,634 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-12-13 12:47:40,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:40,634 INFO L225 Difference]: With dead ends: 219 [2022-12-13 12:47:40,634 INFO L226 Difference]: Without dead ends: 211 [2022-12-13 12:47:40,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2022-12-13 12:47:40,635 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 277 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:40,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1515 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 12:47:40,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-12-13 12:47:40,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 194. [2022-12-13 12:47:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 191 states have (on average 1.287958115183246) internal successors, (246), 193 states have internal predecessors, (246), 0 states have call successors, (0), 0 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 12:47:40,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 246 transitions. [2022-12-13 12:47:40,665 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 246 transitions. Word has length 54 [2022-12-13 12:47:40,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:40,665 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 246 transitions. [2022-12-13 12:47:40,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 0 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 12:47:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 246 transitions. [2022-12-13 12:47:40,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-13 12:47:40,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:40,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:40,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 12:47:40,666 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:40,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:40,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2098262835, now seen corresponding path program 1 times [2022-12-13 12:47:40,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:40,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471862596] [2022-12-13 12:47:40,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:41,412 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 12:47:41,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:41,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471862596] [2022-12-13 12:47:41,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471862596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:41,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:41,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-13 12:47:41,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907638695] [2022-12-13 12:47:41,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:41,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 12:47:41,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:41,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 12:47:41,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-13 12:47:41,414 INFO L87 Difference]: Start difference. First operand 194 states and 246 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 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 12:47:43,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:43,033 INFO L93 Difference]: Finished difference Result 400 states and 529 transitions. [2022-12-13 12:47:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 12:47:43,033 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-12-13 12:47:43,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:43,034 INFO L225 Difference]: With dead ends: 400 [2022-12-13 12:47:43,034 INFO L226 Difference]: Without dead ends: 394 [2022-12-13 12:47:43,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=203, Invalid=987, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 12:47:43,035 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 643 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:43,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 2789 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 12:47:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-12-13 12:47:43,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 188. [2022-12-13 12:47:43,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 185 states have (on average 1.281081081081081) internal successors, (237), 187 states have internal predecessors, (237), 0 states have call successors, (0), 0 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 12:47:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 237 transitions. [2022-12-13 12:47:43,068 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 237 transitions. Word has length 55 [2022-12-13 12:47:43,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:43,068 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 237 transitions. [2022-12-13 12:47:43,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 0 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 12:47:43,069 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 237 transitions. [2022-12-13 12:47:43,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-13 12:47:43,069 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:43,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:43,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 12:47:43,069 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:43,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:43,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1345030097, now seen corresponding path program 1 times [2022-12-13 12:47:43,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:43,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386442665] [2022-12-13 12:47:43,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:43,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:43,455 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 12:47:43,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:43,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386442665] [2022-12-13 12:47:43,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386442665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:43,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:43,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 12:47:43,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361552106] [2022-12-13 12:47:43,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:43,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 12:47:43,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:43,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 12:47:43,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-12-13 12:47:43,456 INFO L87 Difference]: Start difference. First operand 188 states and 237 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 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 12:47:44,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:44,549 INFO L93 Difference]: Finished difference Result 667 states and 919 transitions. [2022-12-13 12:47:44,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:47:44,550 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-12-13 12:47:44,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:44,551 INFO L225 Difference]: With dead ends: 667 [2022-12-13 12:47:44,551 INFO L226 Difference]: Without dead ends: 661 [2022-12-13 12:47:44,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-12-13 12:47:44,552 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 827 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:44,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2190 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 12:47:44,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-12-13 12:47:44,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 194. [2022-12-13 12:47:44,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 191 states have (on average 1.2827225130890052) internal successors, (245), 193 states have internal predecessors, (245), 0 states have call successors, (0), 0 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 12:47:44,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 245 transitions. [2022-12-13 12:47:44,590 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 245 transitions. Word has length 55 [2022-12-13 12:47:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:44,590 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 245 transitions. [2022-12-13 12:47:44,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 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 12:47:44,590 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 245 transitions. [2022-12-13 12:47:44,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-13 12:47:44,590 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:44,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:44,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 12:47:44,591 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:44,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:44,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1456871967, now seen corresponding path program 1 times [2022-12-13 12:47:44,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:44,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419845890] [2022-12-13 12:47:44,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:44,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:44,825 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 12:47:44,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:44,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419845890] [2022-12-13 12:47:44,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419845890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:44,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:44,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 12:47:44,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47915671] [2022-12-13 12:47:44,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:44,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:47:44,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:44,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:47:44,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:47:44,827 INFO L87 Difference]: Start difference. First operand 194 states and 245 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 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 12:47:45,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:45,296 INFO L93 Difference]: Finished difference Result 454 states and 625 transitions. [2022-12-13 12:47:45,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 12:47:45,296 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-12-13 12:47:45,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:45,297 INFO L225 Difference]: With dead ends: 454 [2022-12-13 12:47:45,297 INFO L226 Difference]: Without dead ends: 431 [2022-12-13 12:47:45,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-12-13 12:47:45,298 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 899 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:45,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 562 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:47:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-12-13 12:47:45,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 171. [2022-12-13 12:47:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 169 states have (on average 1.301775147928994) internal successors, (220), 170 states have internal predecessors, (220), 0 states have call successors, (0), 0 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 12:47:45,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 220 transitions. [2022-12-13 12:47:45,337 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 220 transitions. Word has length 55 [2022-12-13 12:47:45,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:45,337 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 220 transitions. [2022-12-13 12:47:45,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 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 12:47:45,337 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 220 transitions. [2022-12-13 12:47:45,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 12:47:45,337 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:45,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:45,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 12:47:45,338 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:45,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2096401114, now seen corresponding path program 1 times [2022-12-13 12:47:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:45,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761610489] [2022-12-13 12:47:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:46,014 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 12:47:46,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:46,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761610489] [2022-12-13 12:47:46,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761610489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:46,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:46,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-12-13 12:47:46,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553176329] [2022-12-13 12:47:46,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:46,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 12:47:46,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:46,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 12:47:46,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-12-13 12:47:46,017 INFO L87 Difference]: Start difference. First operand 171 states and 220 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 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 12:47:47,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:47,091 INFO L93 Difference]: Finished difference Result 354 states and 483 transitions. [2022-12-13 12:47:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 12:47:47,091 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 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 56 [2022-12-13 12:47:47,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:47,092 INFO L225 Difference]: With dead ends: 354 [2022-12-13 12:47:47,092 INFO L226 Difference]: Without dead ends: 348 [2022-12-13 12:47:47,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2022-12-13 12:47:47,093 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 242 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:47,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 2607 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 12:47:47,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-12-13 12:47:47,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 159. [2022-12-13 12:47:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.3037974683544304) internal successors, (206), 158 states have internal predecessors, (206), 0 states have call successors, (0), 0 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 12:47:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 206 transitions. [2022-12-13 12:47:47,134 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 206 transitions. Word has length 56 [2022-12-13 12:47:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:47,134 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 206 transitions. [2022-12-13 12:47:47,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 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 12:47:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 206 transitions. [2022-12-13 12:47:47,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-13 12:47:47,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:47,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:47,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 12:47:47,135 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:47,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:47,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1406506919, now seen corresponding path program 1 times [2022-12-13 12:47:47,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:47,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582292016] [2022-12-13 12:47:47,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:47,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:47,174 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 12:47:47,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:47,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582292016] [2022-12-13 12:47:47,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582292016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:47,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:47,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:47:47,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696367681] [2022-12-13 12:47:47,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:47,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:47:47,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:47,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:47:47,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:47:47,175 INFO L87 Difference]: Start difference. First operand 159 states and 206 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 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 12:47:47,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:47,402 INFO L93 Difference]: Finished difference Result 651 states and 938 transitions. [2022-12-13 12:47:47,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:47:47,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-12-13 12:47:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:47,404 INFO L225 Difference]: With dead ends: 651 [2022-12-13 12:47:47,404 INFO L226 Difference]: Without dead ends: 569 [2022-12-13 12:47:47,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:47:47,405 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 519 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:47,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 459 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:47:47,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-12-13 12:47:47,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 239. [2022-12-13 12:47:47,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 238 states have (on average 1.365546218487395) internal successors, (325), 238 states have internal predecessors, (325), 0 states have call successors, (0), 0 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 12:47:47,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 325 transitions. [2022-12-13 12:47:47,477 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 325 transitions. Word has length 72 [2022-12-13 12:47:47,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:47,477 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 325 transitions. [2022-12-13 12:47:47,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 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 12:47:47,478 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 325 transitions. [2022-12-13 12:47:47,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-13 12:47:47,478 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:47,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:47,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 12:47:47,478 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:47,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:47,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1673936966, now seen corresponding path program 1 times [2022-12-13 12:47:47,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:47,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101003465] [2022-12-13 12:47:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:47,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:47,526 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 12:47:47,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:47,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101003465] [2022-12-13 12:47:47,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101003465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:47,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:47,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:47:47,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020026497] [2022-12-13 12:47:47,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:47,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:47:47,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:47,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:47:47,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:47:47,527 INFO L87 Difference]: Start difference. First operand 239 states and 325 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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 12:47:47,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:47,791 INFO L93 Difference]: Finished difference Result 807 states and 1168 transitions. [2022-12-13 12:47:47,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:47:47,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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 74 [2022-12-13 12:47:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:47,793 INFO L225 Difference]: With dead ends: 807 [2022-12-13 12:47:47,793 INFO L226 Difference]: Without dead ends: 645 [2022-12-13 12:47:47,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:47:47,794 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 285 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:47,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 411 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:47:47,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2022-12-13 12:47:47,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 319. [2022-12-13 12:47:47,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 1.3962264150943395) internal successors, (444), 318 states have internal predecessors, (444), 0 states have call successors, (0), 0 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 12:47:47,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 444 transitions. [2022-12-13 12:47:47,902 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 444 transitions. Word has length 74 [2022-12-13 12:47:47,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:47,902 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 444 transitions. [2022-12-13 12:47:47,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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 12:47:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 444 transitions. [2022-12-13 12:47:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-13 12:47:47,903 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:47,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:47,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 12:47:47,903 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:47,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:47,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1695280855, now seen corresponding path program 1 times [2022-12-13 12:47:47,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:47,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2951739] [2022-12-13 12:47:47,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:47,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:47,927 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 12:47:47,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:47,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2951739] [2022-12-13 12:47:47,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2951739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:47,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:47,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:47:47,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825017056] [2022-12-13 12:47:47,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:47,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:47:47,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:47,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:47:47,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:47:47,928 INFO L87 Difference]: Start difference. First operand 319 states and 444 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 12:47:48,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:48,089 INFO L93 Difference]: Finished difference Result 643 states and 924 transitions. [2022-12-13 12:47:48,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:47:48,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 74 [2022-12-13 12:47:48,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:48,091 INFO L225 Difference]: With dead ends: 643 [2022-12-13 12:47:48,091 INFO L226 Difference]: Without dead ends: 401 [2022-12-13 12:47:48,091 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 12:47:48,092 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 50 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:48,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 199 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:47:48,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-12-13 12:47:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2022-12-13 12:47:48,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 1.4045226130653266) internal successors, (559), 398 states have internal predecessors, (559), 0 states have call successors, (0), 0 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 12:47:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 559 transitions. [2022-12-13 12:47:48,231 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 559 transitions. Word has length 74 [2022-12-13 12:47:48,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:48,231 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 559 transitions. [2022-12-13 12:47:48,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 12:47:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 559 transitions. [2022-12-13 12:47:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-13 12:47:48,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:48,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:48,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 12:47:48,233 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:48,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:48,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1859946120, now seen corresponding path program 1 times [2022-12-13 12:47:48,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:48,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776692947] [2022-12-13 12:47:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:48,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:48,261 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 12:47:48,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:48,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776692947] [2022-12-13 12:47:48,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776692947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:48,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:48,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:47:48,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434505055] [2022-12-13 12:47:48,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:48,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:47:48,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:48,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:47:48,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:47:48,263 INFO L87 Difference]: Start difference. First operand 399 states and 559 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 12:47:48,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:48,540 INFO L93 Difference]: Finished difference Result 933 states and 1344 transitions. [2022-12-13 12:47:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:47:48,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 74 [2022-12-13 12:47:48,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:48,543 INFO L225 Difference]: With dead ends: 933 [2022-12-13 12:47:48,543 INFO L226 Difference]: Without dead ends: 611 [2022-12-13 12:47:48,544 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 12:47:48,544 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 69 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:48,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 192 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:47:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-12-13 12:47:48,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 603. [2022-12-13 12:47:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 602 states have (on average 1.4053156146179402) internal successors, (846), 602 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:47:48,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 846 transitions. [2022-12-13 12:47:48,793 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 846 transitions. Word has length 74 [2022-12-13 12:47:48,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:48,793 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 846 transitions. [2022-12-13 12:47:48,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 12:47:48,793 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 846 transitions. [2022-12-13 12:47:48,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-13 12:47:48,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:48,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:48,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 12:47:48,794 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:48,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:48,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1889765056, now seen corresponding path program 1 times [2022-12-13 12:47:48,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:48,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575054675] [2022-12-13 12:47:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:48,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:48,864 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 12:47:48,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:48,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575054675] [2022-12-13 12:47:48,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575054675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:48,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:48,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:47:48,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192375819] [2022-12-13 12:47:48,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:48,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:47:48,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:48,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:47:48,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:47:48,865 INFO L87 Difference]: Start difference. First operand 603 states and 846 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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 12:47:49,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:49,427 INFO L93 Difference]: Finished difference Result 1533 states and 2193 transitions. [2022-12-13 12:47:49,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:47:49,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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 74 [2022-12-13 12:47:49,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:49,432 INFO L225 Difference]: With dead ends: 1533 [2022-12-13 12:47:49,432 INFO L226 Difference]: Without dead ends: 1259 [2022-12-13 12:47:49,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:47:49,433 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 276 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:49,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 460 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:47:49,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2022-12-13 12:47:49,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 981. [2022-12-13 12:47:49,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 1.4193877551020408) internal successors, (1391), 980 states have internal predecessors, (1391), 0 states have call successors, (0), 0 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 12:47:49,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1391 transitions. [2022-12-13 12:47:49,870 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1391 transitions. Word has length 74 [2022-12-13 12:47:49,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:49,870 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1391 transitions. [2022-12-13 12:47:49,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 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 12:47:49,871 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1391 transitions. [2022-12-13 12:47:49,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 12:47:49,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:49,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:49,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 12:47:49,871 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:49,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:49,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1073266559, now seen corresponding path program 1 times [2022-12-13 12:47:49,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:49,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275635481] [2022-12-13 12:47:49,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:49,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:49,913 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 12:47:49,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:49,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275635481] [2022-12-13 12:47:49,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275635481] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:49,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:49,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:47:49,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520598791] [2022-12-13 12:47:49,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:49,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:47:49,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:49,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:47:49,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:47:49,916 INFO L87 Difference]: Start difference. First operand 981 states and 1391 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 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 12:47:50,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:50,708 INFO L93 Difference]: Finished difference Result 2677 states and 3809 transitions. [2022-12-13 12:47:50,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:47:50,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 12:47:50,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:50,712 INFO L225 Difference]: With dead ends: 2677 [2022-12-13 12:47:50,712 INFO L226 Difference]: Without dead ends: 1773 [2022-12-13 12:47:50,713 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 12:47:50,714 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 52 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:50,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 251 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:47:50,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2022-12-13 12:47:51,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1659. [2022-12-13 12:47:51,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1658 states have (on average 1.4071170084439084) internal successors, (2333), 1658 states have internal predecessors, (2333), 0 states have call successors, (0), 0 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 12:47:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2333 transitions. [2022-12-13 12:47:51,394 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2333 transitions. Word has length 75 [2022-12-13 12:47:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:51,394 INFO L495 AbstractCegarLoop]: Abstraction has 1659 states and 2333 transitions. [2022-12-13 12:47:51,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 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 12:47:51,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2333 transitions. [2022-12-13 12:47:51,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 12:47:51,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:51,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:51,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 12:47:51,396 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:51,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:51,396 INFO L85 PathProgramCache]: Analyzing trace with hash -391890934, now seen corresponding path program 1 times [2022-12-13 12:47:51,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:51,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852632658] [2022-12-13 12:47:51,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:51,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:51,440 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 12:47:51,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:51,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852632658] [2022-12-13 12:47:51,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852632658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:51,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:51,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:47:51,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500887351] [2022-12-13 12:47:51,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:51,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:47:51,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:51,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:47:51,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:47:51,442 INFO L87 Difference]: Start difference. First operand 1659 states and 2333 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 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 12:47:52,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:52,830 INFO L93 Difference]: Finished difference Result 4599 states and 6439 transitions. [2022-12-13 12:47:52,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:47:52,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-12-13 12:47:52,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:52,835 INFO L225 Difference]: With dead ends: 4599 [2022-12-13 12:47:52,835 INFO L226 Difference]: Without dead ends: 3017 [2022-12-13 12:47:52,837 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 12:47:52,837 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 42 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:52,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 251 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:47:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2022-12-13 12:47:54,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2791. [2022-12-13 12:47:54,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2790 states have (on average 1.3810035842293906) internal successors, (3853), 2790 states have internal predecessors, (3853), 0 states have call successors, (0), 0 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 12:47:54,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 3853 transitions. [2022-12-13 12:47:54,094 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 3853 transitions. Word has length 76 [2022-12-13 12:47:54,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:54,095 INFO L495 AbstractCegarLoop]: Abstraction has 2791 states and 3853 transitions. [2022-12-13 12:47:54,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 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 12:47:54,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 3853 transitions. [2022-12-13 12:47:54,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 12:47:54,095 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:54,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:54,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 12:47:54,095 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:54,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:54,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1183434290, now seen corresponding path program 1 times [2022-12-13 12:47:54,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:54,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789094302] [2022-12-13 12:47:54,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:54,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:54,186 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 12:47:54,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:54,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789094302] [2022-12-13 12:47:54,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789094302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:54,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:54,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:47:54,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714655346] [2022-12-13 12:47:54,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:54,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:47:54,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:54,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:47:54,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:47:54,189 INFO L87 Difference]: Start difference. First operand 2791 states and 3853 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 12:47:56,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:56,293 INFO L93 Difference]: Finished difference Result 4243 states and 5795 transitions. [2022-12-13 12:47:56,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 12:47:56,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-12-13 12:47:56,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:56,301 INFO L225 Difference]: With dead ends: 4243 [2022-12-13 12:47:56,301 INFO L226 Difference]: Without dead ends: 4241 [2022-12-13 12:47:56,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:47:56,302 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 197 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:56,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 651 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:47:56,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4241 states. [2022-12-13 12:47:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4241 to 2863. [2022-12-13 12:47:57,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2863 states, 2862 states have (on average 1.3602375960866526) internal successors, (3893), 2862 states have internal predecessors, (3893), 0 states have call successors, (0), 0 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 12:47:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2863 states to 2863 states and 3893 transitions. [2022-12-13 12:47:57,669 INFO L78 Accepts]: Start accepts. Automaton has 2863 states and 3893 transitions. Word has length 77 [2022-12-13 12:47:57,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:47:57,669 INFO L495 AbstractCegarLoop]: Abstraction has 2863 states and 3893 transitions. [2022-12-13 12:47:57,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 12:47:57,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2863 states and 3893 transitions. [2022-12-13 12:47:57,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 12:47:57,670 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:47:57,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:47:57,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 12:47:57,670 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:47:57,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:47:57,670 INFO L85 PathProgramCache]: Analyzing trace with hash -696816699, now seen corresponding path program 1 times [2022-12-13 12:47:57,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:47:57,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093631145] [2022-12-13 12:47:57,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:47:57,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:47:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:47:57,719 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 12:47:57,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:47:57,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093631145] [2022-12-13 12:47:57,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093631145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:47:57,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:47:57,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:47:57,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762914965] [2022-12-13 12:47:57,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:47:57,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:47:57,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:47:57,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:47:57,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:47:57,721 INFO L87 Difference]: Start difference. First operand 2863 states and 3893 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 12:47:59,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:47:59,800 INFO L93 Difference]: Finished difference Result 5357 states and 7344 transitions. [2022-12-13 12:47:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:47:59,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-12-13 12:47:59,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:47:59,812 INFO L225 Difference]: With dead ends: 5357 [2022-12-13 12:47:59,812 INFO L226 Difference]: Without dead ends: 4499 [2022-12-13 12:47:59,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:47:59,813 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 275 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:47:59,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 411 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:47:59,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2022-12-13 12:48:01,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 3639. [2022-12-13 12:48:01,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3639 states, 3638 states have (on average 1.3603628367234744) internal successors, (4949), 3638 states have internal predecessors, (4949), 0 states have call successors, (0), 0 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 12:48:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 4949 transitions. [2022-12-13 12:48:01,547 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 4949 transitions. Word has length 77 [2022-12-13 12:48:01,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:48:01,548 INFO L495 AbstractCegarLoop]: Abstraction has 3639 states and 4949 transitions. [2022-12-13 12:48:01,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 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 12:48:01,548 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 4949 transitions. [2022-12-13 12:48:01,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-12-13 12:48:01,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:48:01,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:48:01,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 12:48:01,549 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:48:01,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:48:01,549 INFO L85 PathProgramCache]: Analyzing trace with hash -59681337, now seen corresponding path program 1 times [2022-12-13 12:48:01,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:48:01,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454014959] [2022-12-13 12:48:01,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:48:01,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:48:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:48:01,617 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 12:48:01,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:48:01,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454014959] [2022-12-13 12:48:01,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454014959] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:48:01,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:48:01,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:48:01,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845991109] [2022-12-13 12:48:01,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:48:01,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:48:01,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:48:01,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:48:01,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:48:01,619 INFO L87 Difference]: Start difference. First operand 3639 states and 4949 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 12:48:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:48:04,542 INFO L93 Difference]: Finished difference Result 8847 states and 11945 transitions. [2022-12-13 12:48:04,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 12:48:04,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-12-13 12:48:04,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:48:04,552 INFO L225 Difference]: With dead ends: 8847 [2022-12-13 12:48:04,552 INFO L226 Difference]: Without dead ends: 5285 [2022-12-13 12:48:04,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 12:48:04,555 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 791 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:48:04,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 218 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:48:04,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5285 states. [2022-12-13 12:48:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5285 to 3603. [2022-12-13 12:48:06,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 3602 states have (on average 1.343975569128262) internal successors, (4841), 3602 states have internal predecessors, (4841), 0 states have call successors, (0), 0 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 12:48:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 4841 transitions. [2022-12-13 12:48:06,289 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 4841 transitions. Word has length 79 [2022-12-13 12:48:06,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:48:06,289 INFO L495 AbstractCegarLoop]: Abstraction has 3603 states and 4841 transitions. [2022-12-13 12:48:06,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 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 12:48:06,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 4841 transitions. [2022-12-13 12:48:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 12:48:06,290 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:48:06,291 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:48:06,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 12:48:06,291 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:48:06,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:48:06,291 INFO L85 PathProgramCache]: Analyzing trace with hash 910821393, now seen corresponding path program 1 times [2022-12-13 12:48:06,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:48:06,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235061170] [2022-12-13 12:48:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:48:06,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:48:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:48:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:48:06,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:48:06,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235061170] [2022-12-13 12:48:06,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235061170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:48:06,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:48:06,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:48:06,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728283928] [2022-12-13 12:48:06,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:48:06,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:48:06,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:48:06,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:48:06,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:48:06,337 INFO L87 Difference]: Start difference. First operand 3603 states and 4841 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 12:48:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:48:08,584 INFO L93 Difference]: Finished difference Result 8199 states and 11027 transitions. [2022-12-13 12:48:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:48:08,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-12-13 12:48:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:48:08,591 INFO L225 Difference]: With dead ends: 8199 [2022-12-13 12:48:08,591 INFO L226 Difference]: Without dead ends: 4673 [2022-12-13 12:48:08,593 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 12:48:08,594 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 53 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:48:08,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 229 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:48:08,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4673 states. [2022-12-13 12:48:10,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4673 to 4267. [2022-12-13 12:48:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4267 states, 4266 states have (on average 1.3204406938584154) internal successors, (5633), 4266 states have internal predecessors, (5633), 0 states have call successors, (0), 0 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 12:48:10,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 5633 transitions. [2022-12-13 12:48:10,705 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 5633 transitions. Word has length 99 [2022-12-13 12:48:10,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:48:10,705 INFO L495 AbstractCegarLoop]: Abstraction has 4267 states and 5633 transitions. [2022-12-13 12:48:10,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 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 12:48:10,705 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 5633 transitions. [2022-12-13 12:48:10,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-12-13 12:48:10,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:48:10,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:48:10,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 12:48:10,706 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:48:10,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:48:10,707 INFO L85 PathProgramCache]: Analyzing trace with hash 920464422, now seen corresponding path program 1 times [2022-12-13 12:48:10,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:48:10,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570218187] [2022-12-13 12:48:10,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:48:10,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:48:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:48:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 12:48:10,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:48:10,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570218187] [2022-12-13 12:48:10,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570218187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:48:10,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:48:10,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:48:10,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007663165] [2022-12-13 12:48:10,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:48:10,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:48:10,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:48:10,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:48:10,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:48:10,734 INFO L87 Difference]: Start difference. First operand 4267 states and 5633 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 12:48:12,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:48:12,796 INFO L93 Difference]: Finished difference Result 8377 states and 11102 transitions. [2022-12-13 12:48:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:48:12,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 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 99 [2022-12-13 12:48:12,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:48:12,802 INFO L225 Difference]: With dead ends: 8377 [2022-12-13 12:48:12,802 INFO L226 Difference]: Without dead ends: 4107 [2022-12-13 12:48:12,804 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 12:48:12,805 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:48:12,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:48:12,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4107 states. [2022-12-13 12:48:14,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4107 to 4099. [2022-12-13 12:48:14,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4099 states, 4098 states have (on average 1.3140556368960468) internal successors, (5385), 4098 states have internal predecessors, (5385), 0 states have call successors, (0), 0 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 12:48:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4099 states to 4099 states and 5385 transitions. [2022-12-13 12:48:14,916 INFO L78 Accepts]: Start accepts. Automaton has 4099 states and 5385 transitions. Word has length 99 [2022-12-13 12:48:14,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:48:14,916 INFO L495 AbstractCegarLoop]: Abstraction has 4099 states and 5385 transitions. [2022-12-13 12:48:14,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 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 12:48:14,916 INFO L276 IsEmpty]: Start isEmpty. Operand 4099 states and 5385 transitions. [2022-12-13 12:48:14,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 12:48:14,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:48:14,917 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:48:14,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 12:48:14,917 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:48:14,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:48:14,918 INFO L85 PathProgramCache]: Analyzing trace with hash -548192524, now seen corresponding path program 1 times [2022-12-13 12:48:14,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:48:14,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090506116] [2022-12-13 12:48:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:48:14,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:48:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:48:15,170 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:48:15,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:48:15,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090506116] [2022-12-13 12:48:15,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090506116] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:48:15,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896888113] [2022-12-13 12:48:15,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:48:15,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:48:15,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:48:15,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:48:15,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:48:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:48:15,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 12:48:15,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:48:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:48:15,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:48:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:48:16,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896888113] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:48:16,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:48:16,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 29 [2022-12-13 12:48:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842096103] [2022-12-13 12:48:16,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:48:16,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-13 12:48:16,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:48:16,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-13 12:48:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=734, Unknown=0, NotChecked=0, Total=812 [2022-12-13 12:48:16,692 INFO L87 Difference]: Start difference. First operand 4099 states and 5385 transitions. Second operand has 29 states, 29 states have (on average 9.206896551724139) internal successors, (267), 29 states have internal predecessors, (267), 0 states have call successors, (0), 0 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 12:50:16,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:50:16,697 INFO L93 Difference]: Finished difference Result 95931 states and 122028 transitions. [2022-12-13 12:50:16,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 602 states. [2022-12-13 12:50:16,698 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.206896551724139) internal successors, (267), 29 states have internal predecessors, (267), 0 states have call successors, (0), 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 100 [2022-12-13 12:50:16,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:50:16,903 INFO L225 Difference]: With dead ends: 95931 [2022-12-13 12:50:16,904 INFO L226 Difference]: Without dead ends: 91909 [2022-12-13 12:50:16,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 627 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189263 ImplicationChecksByTransitivity, 54.8s TimeCoverageRelationStatistics Valid=40960, Invalid=354052, Unknown=0, NotChecked=0, Total=395012 [2022-12-13 12:50:16,973 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 24262 mSDsluCounter, 2295 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24262 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 3905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-13 12:50:16,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24262 Valid, 2455 Invalid, 3905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 3638 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-12-13 12:50:17,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91909 states. [2022-12-13 12:50:28,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91909 to 14679. [2022-12-13 12:50:28,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14679 states, 14678 states have (on average 1.2965662896852432) internal successors, (19031), 14678 states have internal predecessors, (19031), 0 states have call successors, (0), 0 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 12:50:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14679 states to 14679 states and 19031 transitions. [2022-12-13 12:50:28,820 INFO L78 Accepts]: Start accepts. Automaton has 14679 states and 19031 transitions. Word has length 100 [2022-12-13 12:50:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:50:28,820 INFO L495 AbstractCegarLoop]: Abstraction has 14679 states and 19031 transitions. [2022-12-13 12:50:28,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.206896551724139) internal successors, (267), 29 states have internal predecessors, (267), 0 states have call successors, (0), 0 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 12:50:28,821 INFO L276 IsEmpty]: Start isEmpty. Operand 14679 states and 19031 transitions. [2022-12-13 12:50:28,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-12-13 12:50:28,823 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:50:28,823 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:50:28,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:50:29,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:50:29,025 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:50:29,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:50:29,026 INFO L85 PathProgramCache]: Analyzing trace with hash -283874111, now seen corresponding path program 1 times [2022-12-13 12:50:29,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:50:29,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682056469] [2022-12-13 12:50:29,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:50:29,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:50:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:50:29,112 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:50:29,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:50:29,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682056469] [2022-12-13 12:50:29,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682056469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:50:29,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:50:29,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:50:29,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054888245] [2022-12-13 12:50:29,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:50:29,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:50:29,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:50:29,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:50:29,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:50:29,114 INFO L87 Difference]: Start difference. First operand 14679 states and 19031 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 12:50:40,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:50:40,287 INFO L93 Difference]: Finished difference Result 29283 states and 37979 transitions. [2022-12-13 12:50:40,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:50:40,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 100 [2022-12-13 12:50:40,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:50:40,309 INFO L225 Difference]: With dead ends: 29283 [2022-12-13 12:50:40,309 INFO L226 Difference]: Without dead ends: 14681 [2022-12-13 12:50:40,320 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 12:50:40,321 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 55 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:50:40,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 230 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:50:40,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14681 states. [2022-12-13 12:50:51,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14681 to 14079. [2022-12-13 12:50:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14079 states, 14078 states have (on average 1.2836340389259837) internal successors, (18071), 14078 states have internal predecessors, (18071), 0 states have call successors, (0), 0 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 12:50:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14079 states to 14079 states and 18071 transitions. [2022-12-13 12:50:51,125 INFO L78 Accepts]: Start accepts. Automaton has 14079 states and 18071 transitions. Word has length 100 [2022-12-13 12:50:51,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:50:51,125 INFO L495 AbstractCegarLoop]: Abstraction has 14079 states and 18071 transitions. [2022-12-13 12:50:51,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 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 12:50:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 14079 states and 18071 transitions. [2022-12-13 12:50:51,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 12:50:51,126 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:50:51,127 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:50:51,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 12:50:51,127 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:50:51,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:50:51,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1947843567, now seen corresponding path program 1 times [2022-12-13 12:50:51,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:50:51,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593775258] [2022-12-13 12:50:51,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:50:51,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:50:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:50:51,158 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 12:50:51,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:50:51,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593775258] [2022-12-13 12:50:51,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593775258] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:50:51,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:50:51,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:50:51,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615888188] [2022-12-13 12:50:51,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:50:51,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:50:51,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:50:51,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:50:51,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:50:51,160 INFO L87 Difference]: Start difference. First operand 14079 states and 18071 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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 12:50:58,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:50:58,236 INFO L93 Difference]: Finished difference Result 23644 states and 30399 transitions. [2022-12-13 12:50:58,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:50:58,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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 101 [2022-12-13 12:50:58,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:50:58,245 INFO L225 Difference]: With dead ends: 23644 [2022-12-13 12:50:58,246 INFO L226 Difference]: Without dead ends: 9642 [2022-12-13 12:50:58,253 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 12:50:58,253 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 80 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:50:58,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 100 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:50:58,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9642 states. [2022-12-13 12:51:05,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9642 to 9610. [2022-12-13 12:51:05,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9610 states, 9609 states have (on average 1.2683942137579354) internal successors, (12188), 9609 states have internal predecessors, (12188), 0 states have call successors, (0), 0 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 12:51:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9610 states to 9610 states and 12188 transitions. [2022-12-13 12:51:05,109 INFO L78 Accepts]: Start accepts. Automaton has 9610 states and 12188 transitions. Word has length 101 [2022-12-13 12:51:05,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:51:05,109 INFO L495 AbstractCegarLoop]: Abstraction has 9610 states and 12188 transitions. [2022-12-13 12:51:05,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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 12:51:05,109 INFO L276 IsEmpty]: Start isEmpty. Operand 9610 states and 12188 transitions. [2022-12-13 12:51:05,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 12:51:05,110 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:51:05,110 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:05,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 12:51:05,110 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:51:05,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:05,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2008738644, now seen corresponding path program 1 times [2022-12-13 12:51:05,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:05,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124805050] [2022-12-13 12:51:05,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:05,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:05,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:05,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124805050] [2022-12-13 12:51:05,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124805050] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:51:05,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810341847] [2022-12-13 12:51:05,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:05,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:51:05,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:05,534 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:51:05,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:51:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:05,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-13 12:51:05,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:06,387 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:51:06,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:51:06,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810341847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:51:06,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:51:06,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 30 [2022-12-13 12:51:06,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041009604] [2022-12-13 12:51:06,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:51:06,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 12:51:06,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:06,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 12:51:06,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2022-12-13 12:51:06,389 INFO L87 Difference]: Start difference. First operand 9610 states and 12188 transitions. Second operand has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 12 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 12:51:26,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:51:26,728 INFO L93 Difference]: Finished difference Result 34140 states and 43268 transitions. [2022-12-13 12:51:26,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:51:26,729 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 12 states have internal predecessors, (95), 0 states have call successors, (0), 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 101 [2022-12-13 12:51:26,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:51:26,754 INFO L225 Difference]: With dead ends: 34140 [2022-12-13 12:51:26,754 INFO L226 Difference]: Without dead ends: 24601 [2022-12-13 12:51:26,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=185, Invalid=1221, Unknown=0, NotChecked=0, Total=1406 [2022-12-13 12:51:26,763 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 440 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:51:26,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 949 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 12:51:26,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24601 states. [2022-12-13 12:51:34,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24601 to 9610. [2022-12-13 12:51:34,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9610 states, 9609 states have (on average 1.2682901446560517) internal successors, (12187), 9609 states have internal predecessors, (12187), 0 states have call successors, (0), 0 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 12:51:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9610 states to 9610 states and 12187 transitions. [2022-12-13 12:51:34,870 INFO L78 Accepts]: Start accepts. Automaton has 9610 states and 12187 transitions. Word has length 101 [2022-12-13 12:51:34,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:51:34,870 INFO L495 AbstractCegarLoop]: Abstraction has 9610 states and 12187 transitions. [2022-12-13 12:51:34,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 12 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 12:51:34,870 INFO L276 IsEmpty]: Start isEmpty. Operand 9610 states and 12187 transitions. [2022-12-13 12:51:34,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 12:51:34,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:51:34,871 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:51:34,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 12:51:35,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-13 12:51:35,073 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:51:35,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:51:35,075 INFO L85 PathProgramCache]: Analyzing trace with hash 708850099, now seen corresponding path program 1 times [2022-12-13 12:51:35,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:51:35,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653196373] [2022-12-13 12:51:35,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:35,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:51:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:35,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:51:35,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653196373] [2022-12-13 12:51:35,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653196373] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:51:35,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284330960] [2022-12-13 12:51:35,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:51:35,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:51:35,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:51:35,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:51:35,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 12:51:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:51:35,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 12:51:35,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:51:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:36,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:51:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:51:36,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284330960] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:51:36,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:51:36,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 10] total 32 [2022-12-13 12:51:36,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147871413] [2022-12-13 12:51:36,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:51:36,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-13 12:51:36,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:51:36,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-13 12:51:36,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=902, Unknown=0, NotChecked=0, Total=992 [2022-12-13 12:51:36,577 INFO L87 Difference]: Start difference. First operand 9610 states and 12187 transitions. Second operand has 32 states, 32 states have (on average 8.625) internal successors, (276), 32 states have internal predecessors, (276), 0 states have call successors, (0), 0 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 12:53:46,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:53:46,769 INFO L93 Difference]: Finished difference Result 101498 states and 125215 transitions. [2022-12-13 12:53:46,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 465 states. [2022-12-13 12:53:46,769 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.625) internal successors, (276), 32 states have internal predecessors, (276), 0 states have call successors, (0), 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 101 [2022-12-13 12:53:46,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:53:46,881 INFO L225 Difference]: With dead ends: 101498 [2022-12-13 12:53:46,882 INFO L226 Difference]: Without dead ends: 91965 [2022-12-13 12:53:46,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 493 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111522 ImplicationChecksByTransitivity, 36.2s TimeCoverageRelationStatistics Valid=25534, Invalid=218996, Unknown=0, NotChecked=0, Total=244530 [2022-12-13 12:53:46,917 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 6936 mSDsluCounter, 4989 mSDsCounter, 0 mSdLazyCounter, 6056 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6936 SdHoareTripleChecker+Valid, 5204 SdHoareTripleChecker+Invalid, 6192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 6056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:53:46,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6936 Valid, 5204 Invalid, 6192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 6056 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-13 12:53:46,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91965 states. [2022-12-13 12:54:16,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91965 to 32738. [2022-12-13 12:54:16,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32738 states, 32737 states have (on average 1.2667318324831232) internal successors, (41469), 32737 states have internal predecessors, (41469), 0 states have call successors, (0), 0 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 12:54:16,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32738 states to 32738 states and 41469 transitions. [2022-12-13 12:54:16,491 INFO L78 Accepts]: Start accepts. Automaton has 32738 states and 41469 transitions. Word has length 101 [2022-12-13 12:54:16,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:54:16,491 INFO L495 AbstractCegarLoop]: Abstraction has 32738 states and 41469 transitions. [2022-12-13 12:54:16,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.625) internal successors, (276), 32 states have internal predecessors, (276), 0 states have call successors, (0), 0 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 12:54:16,491 INFO L276 IsEmpty]: Start isEmpty. Operand 32738 states and 41469 transitions. [2022-12-13 12:54:16,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-12-13 12:54:16,494 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:54:16,494 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:54:16,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 12:54:16,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-13 12:54:16,695 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:54:16,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:54:16,696 INFO L85 PathProgramCache]: Analyzing trace with hash 39716007, now seen corresponding path program 1 times [2022-12-13 12:54:16,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:54:16,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238602212] [2022-12-13 12:54:16,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:54:16,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:54:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:54:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 12:54:16,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:54:16,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238602212] [2022-12-13 12:54:16,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238602212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:54:16,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:54:16,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 12:54:16,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760459509] [2022-12-13 12:54:16,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:54:16,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 12:54:16,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:54:16,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 12:54:16,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 12:54:16,824 INFO L87 Difference]: Start difference. First operand 32738 states and 41469 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 12:54:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:54:58,909 INFO L93 Difference]: Finished difference Result 72033 states and 91240 transitions. [2022-12-13 12:54:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 12:54:58,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 101 [2022-12-13 12:54:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:54:58,962 INFO L225 Difference]: With dead ends: 72033 [2022-12-13 12:54:58,962 INFO L226 Difference]: Without dead ends: 46485 [2022-12-13 12:54:58,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-12-13 12:54:58,983 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 524 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:54:58,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 351 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:54:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46485 states. [2022-12-13 12:55:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46485 to 32738. [2022-12-13 12:55:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32738 states, 32737 states have (on average 1.2666707395301953) internal successors, (41467), 32737 states have internal predecessors, (41467), 0 states have call successors, (0), 0 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 12:55:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32738 states to 32738 states and 41467 transitions. [2022-12-13 12:55:28,686 INFO L78 Accepts]: Start accepts. Automaton has 32738 states and 41467 transitions. Word has length 101 [2022-12-13 12:55:28,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:28,686 INFO L495 AbstractCegarLoop]: Abstraction has 32738 states and 41467 transitions. [2022-12-13 12:55:28,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 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 12:55:28,686 INFO L276 IsEmpty]: Start isEmpty. Operand 32738 states and 41467 transitions. [2022-12-13 12:55:28,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-12-13 12:55:28,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:28,689 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:55:28,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 12:55:28,689 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-13 12:55:28,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash -290965972, now seen corresponding path program 1 times [2022-12-13 12:55:28,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:28,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97356560] [2022-12-13 12:55:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:28,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:28,962 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:28,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:28,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97356560] [2022-12-13 12:55:28,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97356560] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:55:28,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863505491] [2022-12-13 12:55:28,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:28,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:28,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:55:28,964 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:55:28,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1450c95-e0c5-4906-8812-e7b2191b2b2d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 12:55:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:29,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-13 12:55:29,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:55:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:29,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:55:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:32,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863505491] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:55:32,265 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:55:32,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17, 18] total 43 [2022-12-13 12:55:32,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281290867] [2022-12-13 12:55:32,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:55:32,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-13 12:55:32,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:32,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-13 12:55:32,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1669, Unknown=0, NotChecked=0, Total=1806 [2022-12-13 12:55:32,267 INFO L87 Difference]: Start difference. First operand 32738 states and 41467 transitions. Second operand has 43 states, 43 states have (on average 6.744186046511628) internal successors, (290), 43 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)