./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.08.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/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_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.08.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/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_d2c15158-4504-4bb0-965c-9fb458ee7523/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 d4567c6a74ac7eac1fa65db4db5999d3a1dd022fa97829ecd98c8e766f1d922f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:39:14,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:39:14,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:39:14,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:39:14,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:39:14,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:39:14,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:39:14,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:39:14,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:39:14,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:39:14,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:39:14,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:39:14,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:39:14,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:39:14,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:39:14,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:39:14,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:39:14,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:39:14,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:39:14,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:39:14,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:39:14,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:39:14,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:39:14,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:39:14,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:39:14,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:39:14,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:39:14,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:39:14,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:39:14,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:39:14,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:39:14,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:39:14,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:39:14,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:39:14,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:39:14,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:39:14,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:39:14,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:39:14,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:39:14,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:39:14,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:39:14,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:39:14,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:39:14,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:39:14,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:39:14,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:39:14,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:39:14,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:39:14,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:39:14,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:39:14,605 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:39:14,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:39:14,605 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:39:14,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:39:14,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:39:14,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:39:14,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:39:14,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:39:14,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:39:14,606 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:39:14,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:39:14,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:39:14,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:39:14,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:39:14,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:39:14,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:39:14,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:39:14,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:39:14,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:39:14,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:39:14,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:39:14,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:39:14,607 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:39:14,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:39:14,607 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:39:14,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:39:14,607 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:39:14,607 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_d2c15158-4504-4bb0-965c-9fb458ee7523/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4567c6a74ac7eac1fa65db4db5999d3a1dd022fa97829ecd98c8e766f1d922f [2022-12-13 18:39:14,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:39:14,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:39:14,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:39:14,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:39:14,800 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:39:14,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/combinations/Problem05_label47+token_ring.08.cil-1.c [2022-12-13 18:39:17,379 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:39:17,763 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:39:17,764 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/sv-benchmarks/c/combinations/Problem05_label47+token_ring.08.cil-1.c [2022-12-13 18:39:17,799 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/data/cce078efc/08f051e77c4c4be295680c408eaf7915/FLAG4957dd10d [2022-12-13 18:39:17,809 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/data/cce078efc/08f051e77c4c4be295680c408eaf7915 [2022-12-13 18:39:17,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:39:17,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:39:17,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:39:17,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:39:17,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:39:17,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:39:17" (1/1) ... [2022-12-13 18:39:17,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2503eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:17, skipping insertion in model container [2022-12-13 18:39:17,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:39:17" (1/1) ... [2022-12-13 18:39:17,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:39:17,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:39:19,283 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_d2c15158-4504-4bb0-965c-9fb458ee7523/sv-benchmarks/c/combinations/Problem05_label47+token_ring.08.cil-1.c[377612,377625] [2022-12-13 18:39:19,306 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_d2c15158-4504-4bb0-965c-9fb458ee7523/sv-benchmarks/c/combinations/Problem05_label47+token_ring.08.cil-1.c[383339,383352] [2022-12-13 18:39:19,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:39:19,510 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:39:20,336 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_d2c15158-4504-4bb0-965c-9fb458ee7523/sv-benchmarks/c/combinations/Problem05_label47+token_ring.08.cil-1.c[377612,377625] [2022-12-13 18:39:20,343 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_d2c15158-4504-4bb0-965c-9fb458ee7523/sv-benchmarks/c/combinations/Problem05_label47+token_ring.08.cil-1.c[383339,383352] [2022-12-13 18:39:20,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:39:20,408 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:39:20,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20 WrapperNode [2022-12-13 18:39:20,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:39:20,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:39:20,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:39:20,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:39:20,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:20,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:20,707 INFO L138 Inliner]: procedures = 60, calls = 65, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 12967 [2022-12-13 18:39:20,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:39:20,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:39:20,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:39:20,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:39:20,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:20,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:20,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:20,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:20,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:20,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:21,003 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:21,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:21,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:39:21,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:39:21,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:39:21,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:39:21,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (1/1) ... [2022-12-13 18:39:21,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:39:21,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:39:21,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:39:21,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2c15158-4504-4bb0-965c-9fb458ee7523/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:39:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:39:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-12-13 18:39:21,134 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-12-13 18:39:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-12-13 18:39:21,135 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-12-13 18:39:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-12-13 18:39:21,135 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-12-13 18:39:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-12-13 18:39:21,135 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-12-13 18:39:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-12-13 18:39:21,135 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-12-13 18:39:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-12-13 18:39:21,135 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-12-13 18:39:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:39:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:39:21,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:39:21,235 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:39:21,236 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:39:26,745 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:39:26,764 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:39:26,764 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-12-13 18:39:26,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:39:26 BoogieIcfgContainer [2022-12-13 18:39:26,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:39:26,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:39:26,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:39:26,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:39:26,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:39:17" (1/3) ... [2022-12-13 18:39:26,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c08aa43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:39:26, skipping insertion in model container [2022-12-13 18:39:26,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:39:20" (2/3) ... [2022-12-13 18:39:26,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c08aa43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:39:26, skipping insertion in model container [2022-12-13 18:39:26,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:39:26" (3/3) ... [2022-12-13 18:39:26,773 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.08.cil-1.c [2022-12-13 18:39:26,787 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:39:26,787 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:39:26,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:39:26,852 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;@50d14ba2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:39:26,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:39:26,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2434 states have (on average 1.8483976992604765) internal successors, (4499), 2437 states have internal predecessors, (4499), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-12-13 18:39:26,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:26,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:26,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:26,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:26,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:26,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1316356206, now seen corresponding path program 1 times [2022-12-13 18:39:26,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:26,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875385675] [2022-12-13 18:39:26,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:26,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:27,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:27,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:27,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:27,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:39:27,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:27,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875385675] [2022-12-13 18:39:27,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875385675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:27,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:27,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:39:27,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652612110] [2022-12-13 18:39:27,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:27,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:39:27,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:27,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:39:27,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:39:27,266 INFO L87 Difference]: Start difference. First operand has 2465 states, 2434 states have (on average 1.8483976992604765) internal successors, (4499), 2437 states have internal predecessors, (4499), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:28,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:39:28,381 INFO L93 Difference]: Finished difference Result 5022 states and 9244 transitions. [2022-12-13 18:39:28,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:39:28,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:39:28,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:39:28,405 INFO L225 Difference]: With dead ends: 5022 [2022-12-13 18:39:28,405 INFO L226 Difference]: Without dead ends: 2496 [2022-12-13 18:39:28,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:39:28,416 INFO L413 NwaCegarLoop]: 4282 mSDtfsCounter, 738 mSDsluCounter, 12361 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 16643 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:39:28,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 16643 Invalid, 776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 18:39:28,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-12-13 18:39:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2398. [2022-12-13 18:39:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2398 states, 2368 states have (on average 1.8344594594594594) internal successors, (4344), 2370 states have internal predecessors, (4344), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-12-13 18:39:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2398 states to 2398 states and 4388 transitions. [2022-12-13 18:39:28,534 INFO L78 Accepts]: Start accepts. Automaton has 2398 states and 4388 transitions. Word has length 134 [2022-12-13 18:39:28,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:28,535 INFO L495 AbstractCegarLoop]: Abstraction has 2398 states and 4388 transitions. [2022-12-13 18:39:28,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2398 states and 4388 transitions. [2022-12-13 18:39:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:28,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:28,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:28,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:39:28,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:28,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:28,541 INFO L85 PathProgramCache]: Analyzing trace with hash 2022952812, now seen corresponding path program 1 times [2022-12-13 18:39:28,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:28,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495594140] [2022-12-13 18:39:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:28,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:28,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:28,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:39:28,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:28,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495594140] [2022-12-13 18:39:28,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495594140] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:28,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:28,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:39:28,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137283757] [2022-12-13 18:39:28,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:28,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:39:28,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:28,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:39:28,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:39:28,828 INFO L87 Difference]: Start difference. First operand 2398 states and 4388 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:39:30,882 INFO L93 Difference]: Finished difference Result 3126 states and 5555 transitions. [2022-12-13 18:39:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:39:30,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:39:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:39:30,890 INFO L225 Difference]: With dead ends: 3126 [2022-12-13 18:39:30,890 INFO L226 Difference]: Without dead ends: 2865 [2022-12-13 18:39:30,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-13 18:39:30,893 INFO L413 NwaCegarLoop]: 4218 mSDtfsCounter, 5058 mSDsluCounter, 12566 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 16784 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 18:39:30,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5073 Valid, 16784 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 18:39:30,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2022-12-13 18:39:30,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2670. [2022-12-13 18:39:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2670 states, 2616 states have (on average 1.8103975535168195) internal successors, (4736), 2619 states have internal predecessors, (4736), 39 states have call successors, (39), 12 states have call predecessors, (39), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2022-12-13 18:39:30,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 4817 transitions. [2022-12-13 18:39:30,958 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 4817 transitions. Word has length 134 [2022-12-13 18:39:30,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:30,959 INFO L495 AbstractCegarLoop]: Abstraction has 2670 states and 4817 transitions. [2022-12-13 18:39:30,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:30,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 4817 transitions. [2022-12-13 18:39:30,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:30,960 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:30,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:30,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:39:30,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:30,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:30,961 INFO L85 PathProgramCache]: Analyzing trace with hash 316449264, now seen corresponding path program 1 times [2022-12-13 18:39:30,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:30,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274426896] [2022-12-13 18:39:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:30,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:31,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:31,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:31,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:31,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:39:31,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:31,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274426896] [2022-12-13 18:39:31,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274426896] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:31,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:31,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:39:31,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599755694] [2022-12-13 18:39:31,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:31,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:39:31,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:31,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:39:31,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:39:31,149 INFO L87 Difference]: Start difference. First operand 2670 states and 4817 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:39:33,356 INFO L93 Difference]: Finished difference Result 3779 states and 6593 transitions. [2022-12-13 18:39:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:39:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:39:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:39:33,370 INFO L225 Difference]: With dead ends: 3779 [2022-12-13 18:39:33,370 INFO L226 Difference]: Without dead ends: 3246 [2022-12-13 18:39:33,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:39:33,374 INFO L413 NwaCegarLoop]: 4365 mSDtfsCounter, 5077 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2531 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5092 SdHoareTripleChecker+Valid, 21557 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:39:33,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5092 Valid, 21557 Invalid, 2586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 2531 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 18:39:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2022-12-13 18:39:33,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 2923. [2022-12-13 18:39:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2845 states have (on average 1.789103690685413) internal successors, (5090), 2849 states have internal predecessors, (5090), 56 states have call successors, (56), 18 states have call predecessors, (56), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2022-12-13 18:39:33,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 5207 transitions. [2022-12-13 18:39:33,470 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 5207 transitions. Word has length 134 [2022-12-13 18:39:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:33,470 INFO L495 AbstractCegarLoop]: Abstraction has 2923 states and 5207 transitions. [2022-12-13 18:39:33,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 5207 transitions. [2022-12-13 18:39:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:33,472 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:33,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:33,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:39:33,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:33,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1976631762, now seen corresponding path program 1 times [2022-12-13 18:39:33,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:33,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722575902] [2022-12-13 18:39:33,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:33,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:33,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:33,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:33,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:39:33,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:33,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722575902] [2022-12-13 18:39:33,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722575902] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:33,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:33,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:39:33,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659939639] [2022-12-13 18:39:33,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:33,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:39:33,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:33,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:39:33,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:39:33,692 INFO L87 Difference]: Start difference. First operand 2923 states and 5207 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:35,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:39:35,623 INFO L93 Difference]: Finished difference Result 4741 states and 8111 transitions. [2022-12-13 18:39:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:39:35,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:39:35,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:39:35,634 INFO L225 Difference]: With dead ends: 4741 [2022-12-13 18:39:35,634 INFO L226 Difference]: Without dead ends: 3955 [2022-12-13 18:39:35,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:39:35,638 INFO L413 NwaCegarLoop]: 4223 mSDtfsCounter, 5157 mSDsluCounter, 16738 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 20961 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 18:39:35,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5172 Valid, 20961 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 18:39:35,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3955 states. [2022-12-13 18:39:35,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3955 to 3430. [2022-12-13 18:39:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3304 states have (on average 1.7551452784503632) internal successors, (5799), 3310 states have internal predecessors, (5799), 90 states have call successors, (90), 30 states have call predecessors, (90), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2022-12-13 18:39:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 5992 transitions. [2022-12-13 18:39:35,770 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 5992 transitions. Word has length 134 [2022-12-13 18:39:35,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:35,770 INFO L495 AbstractCegarLoop]: Abstraction has 3430 states and 5992 transitions. [2022-12-13 18:39:35,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:35,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 5992 transitions. [2022-12-13 18:39:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:35,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:35,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:35,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:39:35,773 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:35,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:35,773 INFO L85 PathProgramCache]: Analyzing trace with hash -249486800, now seen corresponding path program 1 times [2022-12-13 18:39:35,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:35,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735671834] [2022-12-13 18:39:35,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:35,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:35,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:35,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:35,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:35,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:39:35,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:35,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735671834] [2022-12-13 18:39:35,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735671834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:35,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:35,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:39:35,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915755083] [2022-12-13 18:39:35,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:35,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:39:35,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:35,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:39:35,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:39:35,926 INFO L87 Difference]: Start difference. First operand 3430 states and 5992 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:38,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:39:38,193 INFO L93 Difference]: Finished difference Result 6592 states and 11016 transitions. [2022-12-13 18:39:38,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:39:38,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:39:38,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:39:38,206 INFO L225 Difference]: With dead ends: 6592 [2022-12-13 18:39:38,206 INFO L226 Difference]: Without dead ends: 5299 [2022-12-13 18:39:38,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:39:38,210 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5075 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5090 SdHoareTripleChecker+Valid, 21555 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 18:39:38,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5090 Valid, 21555 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 18:39:38,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5299 states. [2022-12-13 18:39:38,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5299 to 4445. [2022-12-13 18:39:38,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 4223 states have (on average 1.7089746625621596) internal successors, (7217), 4233 states have internal predecessors, (7217), 158 states have call successors, (158), 54 states have call predecessors, (158), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2022-12-13 18:39:38,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 7568 transitions. [2022-12-13 18:39:38,381 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 7568 transitions. Word has length 134 [2022-12-13 18:39:38,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:38,381 INFO L495 AbstractCegarLoop]: Abstraction has 4445 states and 7568 transitions. [2022-12-13 18:39:38,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:38,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 7568 transitions. [2022-12-13 18:39:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:38,384 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:38,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:38,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:39:38,384 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:38,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:38,385 INFO L85 PathProgramCache]: Analyzing trace with hash 221869550, now seen corresponding path program 1 times [2022-12-13 18:39:38,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:38,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667753028] [2022-12-13 18:39:38,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:38,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:38,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:38,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:38,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:38,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:38,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:38,526 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 18:39:38,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:38,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667753028] [2022-12-13 18:39:38,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667753028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:38,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:38,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:39:38,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583340595] [2022-12-13 18:39:38,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:38,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:39:38,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:38,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:39:38,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:39:38,528 INFO L87 Difference]: Start difference. First operand 4445 states and 7568 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:40,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:39:40,781 INFO L93 Difference]: Finished difference Result 10286 states and 16830 transitions. [2022-12-13 18:39:40,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:39:40,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:39:40,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:39:40,802 INFO L225 Difference]: With dead ends: 10286 [2022-12-13 18:39:40,802 INFO L226 Difference]: Without dead ends: 7978 [2022-12-13 18:39:40,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:39:40,808 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5071 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5086 SdHoareTripleChecker+Valid, 21555 SdHoareTripleChecker+Invalid, 2549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 18:39:40,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5086 Valid, 21555 Invalid, 2549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 18:39:40,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7978 states. [2022-12-13 18:39:41,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7978 to 6489. [2022-12-13 18:39:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6489 states, 6075 states have (on average 1.6587654320987655) internal successors, (10077), 6093 states have internal predecessors, (10077), 294 states have call successors, (294), 102 states have call predecessors, (294), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2022-12-13 18:39:41,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 10762 transitions. [2022-12-13 18:39:41,133 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 10762 transitions. Word has length 134 [2022-12-13 18:39:41,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:41,133 INFO L495 AbstractCegarLoop]: Abstraction has 6489 states and 10762 transitions. [2022-12-13 18:39:41,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:41,133 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 10762 transitions. [2022-12-13 18:39:41,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:41,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:41,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:41,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:39:41,136 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:41,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1909481172, now seen corresponding path program 1 times [2022-12-13 18:39:41,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:41,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450166690] [2022-12-13 18:39:41,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:41,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:41,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:39:41,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:41,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450166690] [2022-12-13 18:39:41,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450166690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:41,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:41,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:39:41,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447750117] [2022-12-13 18:39:41,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:41,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:39:41,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:41,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:39:41,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:39:41,289 INFO L87 Difference]: Start difference. First operand 6489 states and 10762 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:44,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:39:44,459 INFO L93 Difference]: Finished difference Result 17692 states and 28550 transitions. [2022-12-13 18:39:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:39:44,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:39:44,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:39:44,500 INFO L225 Difference]: With dead ends: 17692 [2022-12-13 18:39:44,501 INFO L226 Difference]: Without dead ends: 13340 [2022-12-13 18:39:44,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:39:44,511 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5070 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5085 SdHoareTripleChecker+Valid, 21555 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 18:39:44,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5085 Valid, 21555 Invalid, 2536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 18:39:44,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13340 states. [2022-12-13 18:39:45,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13340 to 10590. [2022-12-13 18:39:45,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10590 states, 9792 states have (on average 1.615093954248366) internal successors, (15815), 9826 states have internal predecessors, (15815), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-12-13 18:39:45,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 17222 transitions. [2022-12-13 18:39:45,154 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 17222 transitions. Word has length 134 [2022-12-13 18:39:45,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:45,154 INFO L495 AbstractCegarLoop]: Abstraction has 10590 states and 17222 transitions. [2022-12-13 18:39:45,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:45,154 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 17222 transitions. [2022-12-13 18:39:45,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:45,160 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:45,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:45,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 18:39:45,161 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:45,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:45,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1346901550, now seen corresponding path program 1 times [2022-12-13 18:39:45,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:45,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730998717] [2022-12-13 18:39:45,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:45,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:45,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:45,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:45,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:39:45,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:45,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730998717] [2022-12-13 18:39:45,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730998717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:45,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:45,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:39:45,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883788568] [2022-12-13 18:39:45,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:45,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:39:45,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:39:45,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:39:45,320 INFO L87 Difference]: Start difference. First operand 10590 states and 17222 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:47,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:39:47,474 INFO L93 Difference]: Finished difference Result 21934 states and 35495 transitions. [2022-12-13 18:39:47,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:39:47,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:39:47,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:39:47,515 INFO L225 Difference]: With dead ends: 21934 [2022-12-13 18:39:47,515 INFO L226 Difference]: Without dead ends: 13481 [2022-12-13 18:39:47,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 18:39:47,534 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 4771 mSDsluCounter, 16507 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4787 SdHoareTripleChecker+Valid, 20683 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 18:39:47,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4787 Valid, 20683 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 18:39:47,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13481 states. [2022-12-13 18:39:48,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13481 to 10590. [2022-12-13 18:39:48,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10590 states, 9792 states have (on average 1.6117238562091503) internal successors, (15782), 9826 states have internal predecessors, (15782), 566 states have call successors, (566), 198 states have call predecessors, (566), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2022-12-13 18:39:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 17189 transitions. [2022-12-13 18:39:48,197 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 17189 transitions. Word has length 134 [2022-12-13 18:39:48,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:48,197 INFO L495 AbstractCegarLoop]: Abstraction has 10590 states and 17189 transitions. [2022-12-13 18:39:48,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:48,197 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 17189 transitions. [2022-12-13 18:39:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:48,204 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:48,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:48,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:39:48,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:48,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:48,205 INFO L85 PathProgramCache]: Analyzing trace with hash -626263828, now seen corresponding path program 1 times [2022-12-13 18:39:48,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:48,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005068284] [2022-12-13 18:39:48,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:48,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:48,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:48,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:48,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:48,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:48,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:48,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:39:48,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:48,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005068284] [2022-12-13 18:39:48,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005068284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:48,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:48,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:39:48,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912782060] [2022-12-13 18:39:48,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:48,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:39:48,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:48,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:39:48,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:39:48,359 INFO L87 Difference]: Start difference. First operand 10590 states and 17189 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:39:52,762 INFO L93 Difference]: Finished difference Result 32469 states and 51948 transitions. [2022-12-13 18:39:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:39:52,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:39:52,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:39:52,812 INFO L225 Difference]: With dead ends: 32469 [2022-12-13 18:39:52,812 INFO L226 Difference]: Without dead ends: 24016 [2022-12-13 18:39:52,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:39:52,831 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5062 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5077 SdHoareTripleChecker+Valid, 21555 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 18:39:52,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5077 Valid, 21555 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 18:39:52,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24016 states. [2022-12-13 18:39:54,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24016 to 18856. [2022-12-13 18:39:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18856 states, 17290 states have (on average 1.5792943898207057) internal successors, (27306), 17356 states have internal predecessors, (27306), 1110 states have call successors, (1110), 390 states have call predecessors, (1110), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2022-12-13 18:39:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18856 states to 18856 states and 30319 transitions. [2022-12-13 18:39:54,347 INFO L78 Accepts]: Start accepts. Automaton has 18856 states and 30319 transitions. Word has length 134 [2022-12-13 18:39:54,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:39:54,348 INFO L495 AbstractCegarLoop]: Abstraction has 18856 states and 30319 transitions. [2022-12-13 18:39:54,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:39:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 18856 states and 30319 transitions. [2022-12-13 18:39:54,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:39:54,354 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:39:54,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:39:54,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 18:39:54,354 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:39:54,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:39:54,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1526842990, now seen corresponding path program 1 times [2022-12-13 18:39:54,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:39:54,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221539906] [2022-12-13 18:39:54,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:39:54,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:39:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:54,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:39:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:54,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:39:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:54,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:39:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:39:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:54,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:39:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:39:54,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:39:54,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:39:54,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221539906] [2022-12-13 18:39:54,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221539906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:39:54,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:39:54,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:39:54,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852695314] [2022-12-13 18:39:54,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:39:54,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:39:54,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:39:54,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:39:54,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:39:54,499 INFO L87 Difference]: Start difference. First operand 18856 states and 30319 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:40:02,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:40:02,497 INFO L93 Difference]: Finished difference Result 69837 states and 111398 transitions. [2022-12-13 18:40:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 18:40:02,497 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:40:02,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:40:02,622 INFO L225 Difference]: With dead ends: 69837 [2022-12-13 18:40:02,622 INFO L226 Difference]: Without dead ends: 53118 [2022-12-13 18:40:02,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:40:02,664 INFO L413 NwaCegarLoop]: 4361 mSDtfsCounter, 5391 mSDsluCounter, 17184 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 21545 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:40:02,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5415 Valid, 21545 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 18:40:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53118 states. [2022-12-13 18:40:05,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53118 to 35257. [2022-12-13 18:40:05,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35257 states, 32219 states have (on average 1.5616872032030789) internal successors, (50316), 32349 states have internal predecessors, (50316), 2134 states have call successors, (2134), 774 states have call predecessors, (2134), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2022-12-13 18:40:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35257 states to 35257 states and 56899 transitions. [2022-12-13 18:40:05,801 INFO L78 Accepts]: Start accepts. Automaton has 35257 states and 56899 transitions. Word has length 134 [2022-12-13 18:40:05,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:40:05,801 INFO L495 AbstractCegarLoop]: Abstraction has 35257 states and 56899 transitions. [2022-12-13 18:40:05,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:40:05,802 INFO L276 IsEmpty]: Start isEmpty. Operand 35257 states and 56899 transitions. [2022-12-13 18:40:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:40:05,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:40:05,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:40:05,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 18:40:05,813 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:40:05,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:40:05,813 INFO L85 PathProgramCache]: Analyzing trace with hash 903561388, now seen corresponding path program 1 times [2022-12-13 18:40:05,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:40:05,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336006809] [2022-12-13 18:40:05,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:40:05,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:40:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:40:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:05,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:40:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:40:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:05,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:40:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:05,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:40:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:05,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:40:05,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:40:05,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336006809] [2022-12-13 18:40:05,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336006809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:40:05,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:40:05,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:40:05,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313646573] [2022-12-13 18:40:05,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:40:05,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:40:05,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:40:05,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:40:05,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:40:05,952 INFO L87 Difference]: Start difference. First operand 35257 states and 56899 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:40:21,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:40:21,070 INFO L93 Difference]: Finished difference Result 134716 states and 217164 transitions. [2022-12-13 18:40:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 18:40:21,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:40:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:40:21,358 INFO L225 Difference]: With dead ends: 134716 [2022-12-13 18:40:21,358 INFO L226 Difference]: Without dead ends: 101596 [2022-12-13 18:40:21,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:40:21,443 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 5200 mSDsluCounter, 16758 mSDsCounter, 0 mSdLazyCounter, 2675 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5214 SdHoareTripleChecker+Valid, 20989 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:40:21,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5214 Valid, 20989 Invalid, 2756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2675 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 18:40:21,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101596 states. [2022-12-13 18:40:27,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101596 to 67354. [2022-12-13 18:40:27,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67354 states, 61436 states have (on average 1.5524122664235953) internal successors, (95374), 61694 states have internal predecessors, (95374), 4118 states have call successors, (4118), 1542 states have call predecessors, (4118), 1798 states have return successors, (10935), 4373 states have call predecessors, (10935), 4118 states have call successors, (10935) [2022-12-13 18:40:28,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67354 states to 67354 states and 110427 transitions. [2022-12-13 18:40:28,101 INFO L78 Accepts]: Start accepts. Automaton has 67354 states and 110427 transitions. Word has length 134 [2022-12-13 18:40:28,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:40:28,101 INFO L495 AbstractCegarLoop]: Abstraction has 67354 states and 110427 transitions. [2022-12-13 18:40:28,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:40:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 67354 states and 110427 transitions. [2022-12-13 18:40:28,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:40:28,128 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:40:28,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:40:28,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 18:40:28,129 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:40:28,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:40:28,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1022002862, now seen corresponding path program 1 times [2022-12-13 18:40:28,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:40:28,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651961234] [2022-12-13 18:40:28,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:40:28,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:40:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:28,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:40:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:40:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:28,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:40:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:28,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:40:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:28,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:40:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:40:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:40:28,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:40:28,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651961234] [2022-12-13 18:40:28,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651961234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:40:28,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:40:28,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:40:28,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148930916] [2022-12-13 18:40:28,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:40:28,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:40:28,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:40:28,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:40:28,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:40:28,279 INFO L87 Difference]: Start difference. First operand 67354 states and 110427 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:40:56,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:40:56,151 INFO L93 Difference]: Finished difference Result 260187 states and 427554 transitions. [2022-12-13 18:40:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 18:40:56,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:40:56,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:40:56,783 INFO L225 Difference]: With dead ends: 260187 [2022-12-13 18:40:56,783 INFO L226 Difference]: Without dead ends: 194970 [2022-12-13 18:40:56,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:40:56,971 INFO L413 NwaCegarLoop]: 4361 mSDtfsCounter, 5317 mSDsluCounter, 17184 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5341 SdHoareTripleChecker+Valid, 21545 SdHoareTripleChecker+Invalid, 2452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:40:56,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5341 Valid, 21545 Invalid, 2452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 18:40:57,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194970 states. [2022-12-13 18:41:10,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194970 to 132059. [2022-12-13 18:41:10,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132059 states, 120509 states have (on average 1.5487639927308334) internal successors, (186640), 121023 states have internal predecessors, (186640), 7958 states have call successors, (7958), 3078 states have call predecessors, (7958), 3590 states have return successors, (28153), 8469 states have call predecessors, (28153), 7958 states have call successors, (28153) [2022-12-13 18:41:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132059 states to 132059 states and 222751 transitions. [2022-12-13 18:41:10,742 INFO L78 Accepts]: Start accepts. Automaton has 132059 states and 222751 transitions. Word has length 134 [2022-12-13 18:41:10,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:41:10,742 INFO L495 AbstractCegarLoop]: Abstraction has 132059 states and 222751 transitions. [2022-12-13 18:41:10,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:41:10,742 INFO L276 IsEmpty]: Start isEmpty. Operand 132059 states and 222751 transitions. [2022-12-13 18:41:10,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:41:10,869 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:41:10,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:41:10,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 18:41:10,869 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:41:10,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:41:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1883670420, now seen corresponding path program 1 times [2022-12-13 18:41:10,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:41:10,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340754788] [2022-12-13 18:41:10,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:41:10,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:41:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:10,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:41:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:41:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:10,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:41:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:10,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:41:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:41:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:41:10,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:41:10,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:41:10,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340754788] [2022-12-13 18:41:10,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340754788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:41:10,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:41:10,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:41:10,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069960822] [2022-12-13 18:41:10,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:41:10,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:41:10,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:41:10,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:41:10,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:41:10,995 INFO L87 Difference]: Start difference. First operand 132059 states and 222751 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:42:05,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:42:05,326 INFO L93 Difference]: Finished difference Result 500376 states and 849828 transitions. [2022-12-13 18:42:05,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 18:42:05,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:42:05,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:42:06,732 INFO L225 Difference]: With dead ends: 500376 [2022-12-13 18:42:06,732 INFO L226 Difference]: Without dead ends: 370454 [2022-12-13 18:42:07,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:42:07,094 INFO L413 NwaCegarLoop]: 4361 mSDtfsCounter, 5103 mSDsluCounter, 17184 mSDsCounter, 0 mSdLazyCounter, 2703 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5117 SdHoareTripleChecker+Valid, 21545 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:42:07,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5117 Valid, 21545 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2703 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 18:42:07,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370454 states. [2022-12-13 18:42:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370454 to 261725. [2022-12-13 18:42:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261725 states, 239167 states have (on average 1.5489260642145446) internal successors, (370452), 240193 states have internal predecessors, (370452), 15382 states have call successors, (15382), 6150 states have call predecessors, (15382), 7174 states have return successors, (75455), 16405 states have call predecessors, (75455), 15382 states have call successors, (75455) [2022-12-13 18:42:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261725 states to 261725 states and 461289 transitions. [2022-12-13 18:42:36,452 INFO L78 Accepts]: Start accepts. Automaton has 261725 states and 461289 transitions. Word has length 134 [2022-12-13 18:42:36,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:42:36,453 INFO L495 AbstractCegarLoop]: Abstraction has 261725 states and 461289 transitions. [2022-12-13 18:42:36,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:42:36,453 INFO L276 IsEmpty]: Start isEmpty. Operand 261725 states and 461289 transitions. [2022-12-13 18:42:36,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:42:36,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:42:36,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:42:36,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 18:42:36,539 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:42:36,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:42:36,539 INFO L85 PathProgramCache]: Analyzing trace with hash 544588202, now seen corresponding path program 1 times [2022-12-13 18:42:36,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:42:36,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290917961] [2022-12-13 18:42:36,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:42:36,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:42:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:42:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:36,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:42:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:42:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:36,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:42:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:42:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:42:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:42:36,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:42:36,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290917961] [2022-12-13 18:42:36,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290917961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:42:36,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:42:36,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:42:36,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892300295] [2022-12-13 18:42:36,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:42:36,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:42:36,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:42:36,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:42:36,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:42:36,709 INFO L87 Difference]: Start difference. First operand 261725 states and 461289 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:43:25,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:43:25,275 INFO L93 Difference]: Finished difference Result 595710 states and 1093606 transitions. [2022-12-13 18:43:25,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:43:25,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:43:25,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:43:26,781 INFO L225 Difference]: With dead ends: 595710 [2022-12-13 18:43:26,781 INFO L226 Difference]: Without dead ends: 336122 [2022-12-13 18:43:27,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 18:43:27,531 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 4776 mSDsluCounter, 16505 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4792 SdHoareTripleChecker+Valid, 20681 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 18:43:27,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4792 Valid, 20681 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 18:43:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336122 states. [2022-12-13 18:43:58,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336122 to 261725. [2022-12-13 18:43:58,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261725 states, 239167 states have (on average 1.544640355901943) internal successors, (369427), 240193 states have internal predecessors, (369427), 15382 states have call successors, (15382), 6150 states have call predecessors, (15382), 7174 states have return successors, (75455), 16405 states have call predecessors, (75455), 15382 states have call successors, (75455) [2022-12-13 18:43:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261725 states to 261725 states and 460264 transitions. [2022-12-13 18:43:59,778 INFO L78 Accepts]: Start accepts. Automaton has 261725 states and 460264 transitions. Word has length 134 [2022-12-13 18:43:59,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:43:59,778 INFO L495 AbstractCegarLoop]: Abstraction has 261725 states and 460264 transitions. [2022-12-13 18:43:59,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:43:59,778 INFO L276 IsEmpty]: Start isEmpty. Operand 261725 states and 460264 transitions. [2022-12-13 18:43:59,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:43:59,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:43:59,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:43:59,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 18:43:59,866 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:43:59,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:43:59,866 INFO L85 PathProgramCache]: Analyzing trace with hash -762554196, now seen corresponding path program 1 times [2022-12-13 18:43:59,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:43:59,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030385043] [2022-12-13 18:43:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:43:59,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:43:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:43:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:59,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:43:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:43:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:43:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:59,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:43:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:43:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:43:59,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:43:59,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030385043] [2022-12-13 18:43:59,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030385043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:43:59,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:43:59,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:43:59,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363482799] [2022-12-13 18:43:59,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:43:59,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:43:59,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:43:59,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:43:59,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:43:59,994 INFO L87 Difference]: Start difference. First operand 261725 states and 460264 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:45:55,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:45:55,938 INFO L93 Difference]: Finished difference Result 964118 states and 1716404 transitions. [2022-12-13 18:45:55,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 18:45:55,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:45:55,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:45:59,212 INFO L225 Difference]: With dead ends: 964118 [2022-12-13 18:45:59,212 INFO L226 Difference]: Without dead ends: 704530 [2022-12-13 18:46:00,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:46:00,222 INFO L413 NwaCegarLoop]: 4361 mSDtfsCounter, 5075 mSDsluCounter, 17184 mSDsCounter, 0 mSdLazyCounter, 2563 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 21545 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 18:46:00,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5089 Valid, 21545 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2563 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 18:46:00,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704530 states. [2022-12-13 18:47:06,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704530 to 521567. [2022-12-13 18:47:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521567 states, 477505 states have (on average 1.544610004083727) internal successors, (737559), 479555 states have internal predecessors, (737559), 29718 states have call successors, (29718), 12294 states have call predecessors, (29718), 14342 states have return successors, (208913), 31765 states have call predecessors, (208913), 29718 states have call successors, (208913) [2022-12-13 18:47:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521567 states to 521567 states and 976190 transitions. [2022-12-13 18:47:09,111 INFO L78 Accepts]: Start accepts. Automaton has 521567 states and 976190 transitions. Word has length 134 [2022-12-13 18:47:09,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:47:09,112 INFO L495 AbstractCegarLoop]: Abstraction has 521567 states and 976190 transitions. [2022-12-13 18:47:09,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:47:09,112 INFO L276 IsEmpty]: Start isEmpty. Operand 521567 states and 976190 transitions. [2022-12-13 18:47:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:47:09,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:47:09,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:47:09,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 18:47:09,396 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:47:09,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:47:09,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1134942570, now seen corresponding path program 1 times [2022-12-13 18:47:09,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:47:09,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53884782] [2022-12-13 18:47:09,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:47:09,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:47:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:47:09,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:47:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:47:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:47:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:47:09,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:47:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:47:09,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:47:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:47:09,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:47:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:47:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:47:09,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:47:09,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53884782] [2022-12-13 18:47:09,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53884782] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:47:09,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:47:09,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:47:09,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689115104] [2022-12-13 18:47:09,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:47:09,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:47:09,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:47:09,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:47:09,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:47:09,514 INFO L87 Difference]: Start difference. First operand 521567 states and 976190 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:48:52,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:48:52,600 INFO L93 Difference]: Finished difference Result 1181950 states and 2339801 transitions. [2022-12-13 18:48:52,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:48:52,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2022-12-13 18:48:52,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:48:55,775 INFO L225 Difference]: With dead ends: 1181950 [2022-12-13 18:48:55,775 INFO L226 Difference]: Without dead ends: 662520 [2022-12-13 18:48:57,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-12-13 18:48:57,402 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 4893 mSDsluCounter, 12405 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4909 SdHoareTripleChecker+Valid, 16581 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 18:48:57,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4909 Valid, 16581 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 18:48:57,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662520 states. [2022-12-13 18:50:04,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662520 to 521567. [2022-12-13 18:50:05,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521567 states, 477505 states have (on average 1.5403189495397953) internal successors, (735510), 479555 states have internal predecessors, (735510), 29718 states have call successors, (29718), 12294 states have call predecessors, (29718), 14342 states have return successors, (208913), 31765 states have call predecessors, (208913), 29718 states have call successors, (208913) [2022-12-13 18:50:08,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521567 states to 521567 states and 974141 transitions. [2022-12-13 18:50:08,161 INFO L78 Accepts]: Start accepts. Automaton has 521567 states and 974141 transitions. Word has length 134 [2022-12-13 18:50:08,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:50:08,161 INFO L495 AbstractCegarLoop]: Abstraction has 521567 states and 974141 transitions. [2022-12-13 18:50:08,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 18:50:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand 521567 states and 974141 transitions. [2022-12-13 18:50:08,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 18:50:08,541 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:50:08,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:50:08,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 18:50:08,541 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:50:08,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:50:08,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2128983828, now seen corresponding path program 1 times [2022-12-13 18:50:08,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:50:08,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982141955] [2022-12-13 18:50:08,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:50:08,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:50:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:08,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:50:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:08,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:50:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 18:50:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:08,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 18:50:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:08,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 18:50:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:50:08,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:50:08,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982141955] [2022-12-13 18:50:08,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982141955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:50:08,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:50:08,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:50:08,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533550925] [2022-12-13 18:50:08,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:50:08,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:50:08,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:50:08,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:50:08,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:50:08,713 INFO L87 Difference]: Start difference. First operand 521567 states and 974141 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)