./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/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_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/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_861048ed-cd54-4e15-8687-5fb0c7e86c72/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 d144a9b442ad5e7a324b9f0a5b2a5b05c631501eee24b8563227962afec9ac14 --- 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 13:46:06,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:46:06,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:46:06,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:46:06,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:46:06,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:46:06,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:46:06,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:46:06,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:46:06,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:46:06,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:46:06,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:46:06,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:46:06,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:46:06,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:46:06,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:46:06,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:46:06,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:46:06,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:46:06,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:46:06,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:46:06,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:46:06,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:46:06,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:46:06,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:46:06,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:46:06,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:46:06,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:46:06,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:46:06,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:46:06,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:46:06,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:46:06,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:46:06,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:46:06,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:46:06,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:46:06,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:46:06,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:46:06,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:46:06,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:46:06,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:46:06,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:46:06,172 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:46:06,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:46:06,173 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:46:06,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:46:06,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:46:06,174 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:46:06,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:46:06,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:46:06,175 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:46:06,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:46:06,175 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:46:06,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:46:06,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:46:06,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:46:06,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:46:06,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:46:06,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:46:06,177 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:46:06,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:46:06,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:46:06,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:46:06,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:46:06,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:46:06,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:46:06,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:46:06,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:46:06,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:46:06,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:46:06,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:46:06,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:46:06,179 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:46:06,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:46:06,179 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:46:06,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:46:06,180 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:46:06,180 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d144a9b442ad5e7a324b9f0a5b2a5b05c631501eee24b8563227962afec9ac14 [2022-12-13 13:46:06,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:46:06,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:46:06,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:46:06,374 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:46:06,374 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:46:06,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 13:46:09,024 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:46:09,296 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:46:09,297 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 13:46:09,311 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/data/646df23f0/730ede2f745347229ac6d829c9235e4e/FLAG1a6994d71 [2022-12-13 13:46:09,323 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/data/646df23f0/730ede2f745347229ac6d829c9235e4e [2022-12-13 13:46:09,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:46:09,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:46:09,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:46:09,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:46:09,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:46:09,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:46:09" (1/1) ... [2022-12-13 13:46:09,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359c9d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:09, skipping insertion in model container [2022-12-13 13:46:09,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:46:09" (1/1) ... [2022-12-13 13:46:09,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:46:09,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:46:09,838 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31736,31749] [2022-12-13 13:46:09,856 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32626,32639] [2022-12-13 13:46:09,881 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34328,34341] [2022-12-13 13:46:09,926 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35602,35615] [2022-12-13 13:46:10,065 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48839,48852] [2022-12-13 13:46:10,168 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57613,57626] [2022-12-13 13:46:10,183 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[58506,58519] [2022-12-13 13:46:10,206 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60211,60224] [2022-12-13 13:46:10,220 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61104,61117] [2022-12-13 13:46:10,251 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63621,63634] [2022-12-13 13:46:10,266 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[64514,64527] [2022-12-13 13:46:10,288 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[66219,66232] [2022-12-13 13:46:10,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:46:10,356 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:46:10,592 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31736,31749] [2022-12-13 13:46:10,606 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32626,32639] [2022-12-13 13:46:10,627 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34328,34341] [2022-12-13 13:46:10,644 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35602,35615] [2022-12-13 13:46:10,746 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48839,48852] [2022-12-13 13:46:10,835 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57613,57626] [2022-12-13 13:46:10,849 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[58506,58519] [2022-12-13 13:46:10,869 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60211,60224] [2022-12-13 13:46:10,882 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61104,61117] [2022-12-13 13:46:10,909 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63621,63634] [2022-12-13 13:46:10,921 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[64514,64527] [2022-12-13 13:46:10,942 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_861048ed-cd54-4e15-8687-5fb0c7e86c72/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[66219,66232] [2022-12-13 13:46:10,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:46:10,996 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:46:10,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10 WrapperNode [2022-12-13 13:46:10,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:46:10,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:46:10,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:46:10,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:46:11,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,097 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3846 [2022-12-13 13:46:11,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:46:11,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:46:11,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:46:11,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:46:11,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:46:11,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:46:11,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:46:11,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:46:11,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (1/1) ... [2022-12-13 13:46:11,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:46:11,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:46:11,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:46:11,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_861048ed-cd54-4e15-8687-5fb0c7e86c72/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:46:11,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:46:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:46:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:46:11,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:46:11,386 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:46:11,388 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:46:13,175 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:46:13,192 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:46:13,192 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:46:13,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:46:13 BoogieIcfgContainer [2022-12-13 13:46:13,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:46:13,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:46:13,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:46:13,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:46:13,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:46:09" (1/3) ... [2022-12-13 13:46:13,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205cc31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:46:13, skipping insertion in model container [2022-12-13 13:46:13,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:46:10" (2/3) ... [2022-12-13 13:46:13,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205cc31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:46:13, skipping insertion in model container [2022-12-13 13:46:13,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:46:13" (3/3) ... [2022-12-13 13:46:13,203 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-12-13 13:46:13,222 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:46:13,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-12-13 13:46:13,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:46:13,281 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;@74dcc6ab, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:46:13,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-13 13:46:13,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 936 states, 916 states have (on average 1.8307860262008733) internal successors, (1677), 935 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:13,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-12-13 13:46:13,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:13,306 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:13,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:13,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:13,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1509149124, now seen corresponding path program 1 times [2022-12-13 13:46:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:13,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077233197] [2022-12-13 13:46:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:13,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:13,888 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 13:46:13,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:13,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077233197] [2022-12-13 13:46:13,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077233197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:13,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:13,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:46:13,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813041300] [2022-12-13 13:46:13,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:13,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:46:13,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:13,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:46:13,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:13,919 INFO L87 Difference]: Start difference. First operand has 936 states, 916 states have (on average 1.8307860262008733) internal successors, (1677), 935 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:14,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:14,199 INFO L93 Difference]: Finished difference Result 1607 states and 2830 transitions. [2022-12-13 13:46:14,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:46:14,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2022-12-13 13:46:14,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:14,218 INFO L225 Difference]: With dead ends: 1607 [2022-12-13 13:46:14,219 INFO L226 Difference]: Without dead ends: 1329 [2022-12-13 13:46:14,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:14,226 INFO L413 NwaCegarLoop]: 1605 mSDtfsCounter, 929 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:14,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 2774 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:46:14,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2022-12-13 13:46:14,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1327. [2022-12-13 13:46:14,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1315 states have (on average 1.5262357414448668) internal successors, (2007), 1326 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 2007 transitions. [2022-12-13 13:46:14,319 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 2007 transitions. Word has length 304 [2022-12-13 13:46:14,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:14,320 INFO L495 AbstractCegarLoop]: Abstraction has 1327 states and 2007 transitions. [2022-12-13 13:46:14,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:14,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 2007 transitions. [2022-12-13 13:46:14,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-12-13 13:46:14,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:14,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:14,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:46:14,328 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:14,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:14,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1628624792, now seen corresponding path program 1 times [2022-12-13 13:46:14,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:14,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295548673] [2022-12-13 13:46:14,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:14,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:14,618 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 13:46:14,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:14,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295548673] [2022-12-13 13:46:14,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295548673] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:14,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:14,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:46:14,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240541816] [2022-12-13 13:46:14,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:14,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:46:14,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:14,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:46:14,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:14,623 INFO L87 Difference]: Start difference. First operand 1327 states and 2007 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:14,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:14,802 INFO L93 Difference]: Finished difference Result 2524 states and 3845 transitions. [2022-12-13 13:46:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:46:14,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2022-12-13 13:46:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:14,808 INFO L225 Difference]: With dead ends: 2524 [2022-12-13 13:46:14,808 INFO L226 Difference]: Without dead ends: 2135 [2022-12-13 13:46:14,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:14,811 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 702 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:14,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 2577 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:46:14,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2022-12-13 13:46:14,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 2133. [2022-12-13 13:46:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 2121 states have (on average 1.5233380480905234) internal successors, (3231), 2132 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 3231 transitions. [2022-12-13 13:46:14,866 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 3231 transitions. Word has length 304 [2022-12-13 13:46:14,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:14,866 INFO L495 AbstractCegarLoop]: Abstraction has 2133 states and 3231 transitions. [2022-12-13 13:46:14,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:14,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 3231 transitions. [2022-12-13 13:46:14,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-12-13 13:46:14,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:14,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:14,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:46:14,872 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:14,872 INFO L85 PathProgramCache]: Analyzing trace with hash 251943448, now seen corresponding path program 1 times [2022-12-13 13:46:14,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:14,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677438511] [2022-12-13 13:46:14,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:14,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:15,071 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 13:46:15,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:15,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677438511] [2022-12-13 13:46:15,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677438511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:15,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:15,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:46:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613060075] [2022-12-13 13:46:15,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:15,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:46:15,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:15,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:46:15,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:15,075 INFO L87 Difference]: Start difference. First operand 2133 states and 3231 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:15,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:15,285 INFO L93 Difference]: Finished difference Result 4384 states and 6700 transitions. [2022-12-13 13:46:15,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:46:15,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2022-12-13 13:46:15,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:15,301 INFO L225 Difference]: With dead ends: 4384 [2022-12-13 13:46:15,301 INFO L226 Difference]: Without dead ends: 3751 [2022-12-13 13:46:15,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:15,304 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 721 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:15,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 2567 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:46:15,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3751 states. [2022-12-13 13:46:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3751 to 3749. [2022-12-13 13:46:15,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3749 states, 3737 states have (on average 1.5207385603425208) internal successors, (5683), 3748 states have internal predecessors, (5683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 5683 transitions. [2022-12-13 13:46:15,464 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 5683 transitions. Word has length 304 [2022-12-13 13:46:15,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:15,465 INFO L495 AbstractCegarLoop]: Abstraction has 3749 states and 5683 transitions. [2022-12-13 13:46:15,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:15,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 5683 transitions. [2022-12-13 13:46:15,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-12-13 13:46:15,475 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:15,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:15,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:46:15,476 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:15,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:15,477 INFO L85 PathProgramCache]: Analyzing trace with hash -511267108, now seen corresponding path program 1 times [2022-12-13 13:46:15,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:15,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519416179] [2022-12-13 13:46:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:15,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:15,759 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 13:46:15,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:15,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519416179] [2022-12-13 13:46:15,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519416179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:15,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:15,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:46:15,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078002924] [2022-12-13 13:46:15,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:15,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:46:15,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:15,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:46:15,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:15,763 INFO L87 Difference]: Start difference. First operand 3749 states and 5683 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:16,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:16,113 INFO L93 Difference]: Finished difference Result 8112 states and 12416 transitions. [2022-12-13 13:46:16,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:46:16,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2022-12-13 13:46:16,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:16,138 INFO L225 Difference]: With dead ends: 8112 [2022-12-13 13:46:16,138 INFO L226 Difference]: Without dead ends: 6991 [2022-12-13 13:46:16,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:16,142 INFO L413 NwaCegarLoop]: 1503 mSDtfsCounter, 766 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:16,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2561 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 13:46:16,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6991 states. [2022-12-13 13:46:16,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6991 to 6989. [2022-12-13 13:46:16,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6989 states, 6977 states have (on average 1.5185609860971765) internal successors, (10595), 6988 states have internal predecessors, (10595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:16,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6989 states to 6989 states and 10595 transitions. [2022-12-13 13:46:16,354 INFO L78 Accepts]: Start accepts. Automaton has 6989 states and 10595 transitions. Word has length 304 [2022-12-13 13:46:16,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:16,354 INFO L495 AbstractCegarLoop]: Abstraction has 6989 states and 10595 transitions. [2022-12-13 13:46:16,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:16,354 INFO L276 IsEmpty]: Start isEmpty. Operand 6989 states and 10595 transitions. [2022-12-13 13:46:16,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-12-13 13:46:16,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:16,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:16,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:46:16,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:16,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:16,363 INFO L85 PathProgramCache]: Analyzing trace with hash -511698084, now seen corresponding path program 1 times [2022-12-13 13:46:16,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:16,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997779758] [2022-12-13 13:46:16,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:16,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:17,191 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 13:46:17,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:17,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997779758] [2022-12-13 13:46:17,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997779758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:17,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:17,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:46:17,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482217057] [2022-12-13 13:46:17,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:17,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:46:17,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:17,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:46:17,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:46:17,194 INFO L87 Difference]: Start difference. First operand 6989 states and 10595 transitions. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:17,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:17,877 INFO L93 Difference]: Finished difference Result 20697 states and 31348 transitions. [2022-12-13 13:46:17,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:46:17,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2022-12-13 13:46:17,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:17,909 INFO L225 Difference]: With dead ends: 20697 [2022-12-13 13:46:17,909 INFO L226 Difference]: Without dead ends: 13719 [2022-12-13 13:46:17,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:46:17,917 INFO L413 NwaCegarLoop]: 2397 mSDtfsCounter, 2953 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2953 SdHoareTripleChecker+Valid, 3721 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:17,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2953 Valid, 3721 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:46:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13719 states. [2022-12-13 13:46:18,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13719 to 13531. [2022-12-13 13:46:18,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13531 states, 13519 states have (on average 1.509948960721947) internal successors, (20413), 13530 states have internal predecessors, (20413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:18,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13531 states to 13531 states and 20413 transitions. [2022-12-13 13:46:18,561 INFO L78 Accepts]: Start accepts. Automaton has 13531 states and 20413 transitions. Word has length 304 [2022-12-13 13:46:18,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:18,562 INFO L495 AbstractCegarLoop]: Abstraction has 13531 states and 20413 transitions. [2022-12-13 13:46:18,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:18,562 INFO L276 IsEmpty]: Start isEmpty. Operand 13531 states and 20413 transitions. [2022-12-13 13:46:18,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-12-13 13:46:18,590 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:18,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:18,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:46:18,591 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:18,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:18,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1717054208, now seen corresponding path program 1 times [2022-12-13 13:46:18,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:18,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259759915] [2022-12-13 13:46:18,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:18,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:18,743 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 13:46:18,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:18,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259759915] [2022-12-13 13:46:18,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259759915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:18,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:18,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:46:18,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487920331] [2022-12-13 13:46:18,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:18,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:46:18,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:18,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:46:18,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:18,746 INFO L87 Difference]: Start difference. First operand 13531 states and 20413 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:20,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:20,032 INFO L93 Difference]: Finished difference Result 39960 states and 60199 transitions. [2022-12-13 13:46:20,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:46:20,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2022-12-13 13:46:20,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:20,072 INFO L225 Difference]: With dead ends: 39960 [2022-12-13 13:46:20,073 INFO L226 Difference]: Without dead ends: 26554 [2022-12-13 13:46:20,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:20,086 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 1256 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 3994 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:20,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 3994 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:46:20,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26554 states. [2022-12-13 13:46:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26554 to 26366. [2022-12-13 13:46:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26366 states, 26354 states have (on average 1.5007209531759884) internal successors, (39550), 26365 states have internal predecessors, (39550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26366 states to 26366 states and 39550 transitions. [2022-12-13 13:46:21,153 INFO L78 Accepts]: Start accepts. Automaton has 26366 states and 39550 transitions. Word has length 306 [2022-12-13 13:46:21,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:21,153 INFO L495 AbstractCegarLoop]: Abstraction has 26366 states and 39550 transitions. [2022-12-13 13:46:21,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand 26366 states and 39550 transitions. [2022-12-13 13:46:21,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-12-13 13:46:21,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:21,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:21,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:46:21,186 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:21,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:21,187 INFO L85 PathProgramCache]: Analyzing trace with hash 263725189, now seen corresponding path program 1 times [2022-12-13 13:46:21,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:21,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420887574] [2022-12-13 13:46:21,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:21,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:21,335 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 13:46:21,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:21,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420887574] [2022-12-13 13:46:21,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420887574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:21,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:21,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:46:21,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255843427] [2022-12-13 13:46:21,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:21,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:46:21,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:21,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:46:21,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:21,338 INFO L87 Difference]: Start difference. First operand 26366 states and 39550 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:23,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:23,135 INFO L93 Difference]: Finished difference Result 79031 states and 118534 transitions. [2022-12-13 13:46:23,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:46:23,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2022-12-13 13:46:23,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:23,212 INFO L225 Difference]: With dead ends: 79031 [2022-12-13 13:46:23,212 INFO L226 Difference]: Without dead ends: 52703 [2022-12-13 13:46:23,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:23,239 INFO L413 NwaCegarLoop]: 2766 mSDtfsCounter, 1380 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:23,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 4147 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:46:23,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52703 states. [2022-12-13 13:46:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52703 to 26385. [2022-12-13 13:46:24,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26385 states, 26373 states have (on average 1.5007014749933645) internal successors, (39578), 26384 states have internal predecessors, (39578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26385 states to 26385 states and 39578 transitions. [2022-12-13 13:46:24,760 INFO L78 Accepts]: Start accepts. Automaton has 26385 states and 39578 transitions. Word has length 306 [2022-12-13 13:46:24,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:24,761 INFO L495 AbstractCegarLoop]: Abstraction has 26385 states and 39578 transitions. [2022-12-13 13:46:24,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 26385 states and 39578 transitions. [2022-12-13 13:46:24,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-12-13 13:46:24,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:24,799 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:24,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:46:24,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:24,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:24,800 INFO L85 PathProgramCache]: Analyzing trace with hash -485064724, now seen corresponding path program 1 times [2022-12-13 13:46:24,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:24,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901813732] [2022-12-13 13:46:24,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:24,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:24,915 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 13:46:24,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:24,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901813732] [2022-12-13 13:46:24,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901813732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:24,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:24,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:46:24,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665648094] [2022-12-13 13:46:24,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:24,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:46:24,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:24,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:46:24,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:24,918 INFO L87 Difference]: Start difference. First operand 26385 states and 39578 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:27,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:27,985 INFO L93 Difference]: Finished difference Result 79050 states and 118555 transitions. [2022-12-13 13:46:27,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:46:27,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 307 [2022-12-13 13:46:27,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:28,049 INFO L225 Difference]: With dead ends: 79050 [2022-12-13 13:46:28,050 INFO L226 Difference]: Without dead ends: 52721 [2022-12-13 13:46:28,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:28,073 INFO L413 NwaCegarLoop]: 2766 mSDtfsCounter, 1375 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:28,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 4147 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:46:28,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52721 states. [2022-12-13 13:46:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52721 to 26403. [2022-12-13 13:46:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26403 states, 26391 states have (on average 1.5004736463188209) internal successors, (39599), 26402 states have internal predecessors, (39599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26403 states to 26403 states and 39599 transitions. [2022-12-13 13:46:29,637 INFO L78 Accepts]: Start accepts. Automaton has 26403 states and 39599 transitions. Word has length 307 [2022-12-13 13:46:29,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:29,637 INFO L495 AbstractCegarLoop]: Abstraction has 26403 states and 39599 transitions. [2022-12-13 13:46:29,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 26403 states and 39599 transitions. [2022-12-13 13:46:29,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-12-13 13:46:29,654 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:29,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:29,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:46:29,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:29,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:29,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1757991240, now seen corresponding path program 1 times [2022-12-13 13:46:29,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:29,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519742654] [2022-12-13 13:46:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:29,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:30,060 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 13:46:30,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:30,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519742654] [2022-12-13 13:46:30,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519742654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:30,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:30,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:46:30,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458290855] [2022-12-13 13:46:30,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:30,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:46:30,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:30,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:46:30,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:46:30,062 INFO L87 Difference]: Start difference. First operand 26403 states and 39599 transitions. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:33,476 INFO L93 Difference]: Finished difference Result 77954 states and 116762 transitions. [2022-12-13 13:46:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:46:33,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2022-12-13 13:46:33,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:33,547 INFO L225 Difference]: With dead ends: 77954 [2022-12-13 13:46:33,547 INFO L226 Difference]: Without dead ends: 51594 [2022-12-13 13:46:33,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:46:33,573 INFO L413 NwaCegarLoop]: 2382 mSDtfsCounter, 3942 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3942 SdHoareTripleChecker+Valid, 3698 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:33,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3942 Valid, 3698 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:46:33,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51594 states. [2022-12-13 13:46:36,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51594 to 51430. [2022-12-13 13:46:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51430 states, 51418 states have (on average 1.4896534287603562) internal successors, (76595), 51429 states have internal predecessors, (76595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:36,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51430 states to 51430 states and 76595 transitions. [2022-12-13 13:46:36,890 INFO L78 Accepts]: Start accepts. Automaton has 51430 states and 76595 transitions. Word has length 308 [2022-12-13 13:46:36,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:36,891 INFO L495 AbstractCegarLoop]: Abstraction has 51430 states and 76595 transitions. [2022-12-13 13:46:36,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:36,891 INFO L276 IsEmpty]: Start isEmpty. Operand 51430 states and 76595 transitions. [2022-12-13 13:46:36,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-12-13 13:46:36,924 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:36,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:36,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:46:36,925 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:36,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:36,925 INFO L85 PathProgramCache]: Analyzing trace with hash 154367054, now seen corresponding path program 1 times [2022-12-13 13:46:36,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:36,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91339536] [2022-12-13 13:46:36,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:36,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:37,235 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 13:46:37,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:37,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91339536] [2022-12-13 13:46:37,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91339536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:37,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:37,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:46:37,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935173138] [2022-12-13 13:46:37,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:37,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:46:37,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:37,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:46:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:46:37,238 INFO L87 Difference]: Start difference. First operand 51430 states and 76595 transitions. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:46:44,375 INFO L93 Difference]: Finished difference Result 152066 states and 226217 transitions. [2022-12-13 13:46:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:46:44,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2022-12-13 13:46:44,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:46:44,526 INFO L225 Difference]: With dead ends: 152066 [2022-12-13 13:46:44,526 INFO L226 Difference]: Without dead ends: 100762 [2022-12-13 13:46:44,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:46:44,567 INFO L413 NwaCegarLoop]: 2379 mSDtfsCounter, 2901 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2901 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:46:44,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2901 Valid, 3707 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:46:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100762 states. [2022-12-13 13:46:51,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100762 to 100554. [2022-12-13 13:46:51,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100554 states, 100542 states have (on average 1.4792325595273617) internal successors, (148725), 100553 states have internal predecessors, (148725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:51,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100554 states to 100554 states and 148725 transitions. [2022-12-13 13:46:51,726 INFO L78 Accepts]: Start accepts. Automaton has 100554 states and 148725 transitions. Word has length 310 [2022-12-13 13:46:51,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:46:51,726 INFO L495 AbstractCegarLoop]: Abstraction has 100554 states and 148725 transitions. [2022-12-13 13:46:51,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:46:51,727 INFO L276 IsEmpty]: Start isEmpty. Operand 100554 states and 148725 transitions. [2022-12-13 13:46:51,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-12-13 13:46:51,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:46:51,795 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:46:51,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:46:51,796 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:46:51,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:46:51,796 INFO L85 PathProgramCache]: Analyzing trace with hash 620391465, now seen corresponding path program 1 times [2022-12-13 13:46:51,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:46:51,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596289784] [2022-12-13 13:46:51,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:46:51,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:46:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:46:51,884 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 13:46:51,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:46:51,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596289784] [2022-12-13 13:46:51,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596289784] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:46:51,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:46:51,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:46:51,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111528727] [2022-12-13 13:46:51,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:46:51,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:46:51,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:46:51,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:46:51,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:46:51,887 INFO L87 Difference]: Start difference. First operand 100554 states and 148725 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:47:06,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:06,453 INFO L93 Difference]: Finished difference Result 297084 states and 438787 transitions. [2022-12-13 13:47:06,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:47:06,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2022-12-13 13:47:06,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:06,744 INFO L225 Difference]: With dead ends: 297084 [2022-12-13 13:47:06,744 INFO L226 Difference]: Without dead ends: 197044 [2022-12-13 13:47:06,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:47:06,799 INFO L413 NwaCegarLoop]: 2662 mSDtfsCounter, 1232 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:06,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 4000 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:47:06,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197044 states. [2022-12-13 13:47:21,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197044 to 196836. [2022-12-13 13:47:21,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196836 states, 196824 states have (on average 1.468565825305857) internal successors, (289049), 196835 states have internal predecessors, (289049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:47:22,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196836 states to 196836 states and 289049 transitions. [2022-12-13 13:47:22,219 INFO L78 Accepts]: Start accepts. Automaton has 196836 states and 289049 transitions. Word has length 312 [2022-12-13 13:47:22,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:47:22,219 INFO L495 AbstractCegarLoop]: Abstraction has 196836 states and 289049 transitions. [2022-12-13 13:47:22,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:47:22,219 INFO L276 IsEmpty]: Start isEmpty. Operand 196836 states and 289049 transitions. [2022-12-13 13:47:22,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-12-13 13:47:22,367 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:47:22,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:47:22,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:47:22,368 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:47:22,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:47:22,368 INFO L85 PathProgramCache]: Analyzing trace with hash -53597842, now seen corresponding path program 1 times [2022-12-13 13:47:22,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:47:22,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628456370] [2022-12-13 13:47:22,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:47:22,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:47:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:47:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:47:22,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:47:22,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628456370] [2022-12-13 13:47:22,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628456370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:47:22,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:47:22,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:47:22,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569794043] [2022-12-13 13:47:22,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:47:22,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:47:22,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:47:22,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:47:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:47:22,442 INFO L87 Difference]: Start difference. First operand 196836 states and 289049 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:47:53,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:47:53,501 INFO L93 Difference]: Finished difference Result 590018 states and 866349 transitions. [2022-12-13 13:47:53,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:47:53,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2022-12-13 13:47:53,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:47:54,254 INFO L225 Difference]: With dead ends: 590018 [2022-12-13 13:47:54,254 INFO L226 Difference]: Without dead ends: 393454 [2022-12-13 13:47:54,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:47:54,400 INFO L413 NwaCegarLoop]: 2733 mSDtfsCounter, 1347 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:47:54,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1347 Valid, 4114 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:47:54,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393454 states. [2022-12-13 13:48:13,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393454 to 196950. [2022-12-13 13:48:13,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196950 states, 196938 states have (on average 1.4685687881465233) internal successors, (289217), 196949 states have internal predecessors, (289217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196950 states to 196950 states and 289217 transitions. [2022-12-13 13:48:14,050 INFO L78 Accepts]: Start accepts. Automaton has 196950 states and 289217 transitions. Word has length 312 [2022-12-13 13:48:14,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:48:14,050 INFO L495 AbstractCegarLoop]: Abstraction has 196950 states and 289217 transitions. [2022-12-13 13:48:14,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:14,051 INFO L276 IsEmpty]: Start isEmpty. Operand 196950 states and 289217 transitions. [2022-12-13 13:48:14,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-12-13 13:48:14,199 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:48:14,199 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:48:14,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 13:48:14,199 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:48:14,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:14,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1312450781, now seen corresponding path program 1 times [2022-12-13 13:48:14,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:14,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118761267] [2022-12-13 13:48:14,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:14,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:14,298 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 13:48:14,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:14,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118761267] [2022-12-13 13:48:14,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118761267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:14,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:14,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:48:14,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723268493] [2022-12-13 13:48:14,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:14,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:48:14,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:14,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:48:14,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:14,300 INFO L87 Difference]: Start difference. First operand 196950 states and 289217 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:50,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:48:50,176 INFO L93 Difference]: Finished difference Result 590080 states and 866387 transitions. [2022-12-13 13:48:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:48:50,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2022-12-13 13:48:50,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:48:50,864 INFO L225 Difference]: With dead ends: 590080 [2022-12-13 13:48:50,864 INFO L226 Difference]: Without dead ends: 393550 [2022-12-13 13:48:51,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:51,041 INFO L413 NwaCegarLoop]: 2733 mSDtfsCounter, 1342 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:48:51,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 4114 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:48:51,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393550 states. [2022-12-13 13:49:12,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393550 to 197046. [2022-12-13 13:49:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197046 states, 197034 states have (on average 1.46841154318544) internal successors, (289327), 197045 states have internal predecessors, (289327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:49:13,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197046 states to 197046 states and 289327 transitions. [2022-12-13 13:49:13,017 INFO L78 Accepts]: Start accepts. Automaton has 197046 states and 289327 transitions. Word has length 313 [2022-12-13 13:49:13,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:49:13,017 INFO L495 AbstractCegarLoop]: Abstraction has 197046 states and 289327 transitions. [2022-12-13 13:49:13,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:49:13,017 INFO L276 IsEmpty]: Start isEmpty. Operand 197046 states and 289327 transitions. [2022-12-13 13:49:13,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-13 13:49:13,165 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:49:13,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:13,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 13:49:13,166 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:49:13,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:49:13,166 INFO L85 PathProgramCache]: Analyzing trace with hash 297353284, now seen corresponding path program 1 times [2022-12-13 13:49:13,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:49:13,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780348418] [2022-12-13 13:49:13,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:49:13,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:49:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:49:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:49:13,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:49:13,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780348418] [2022-12-13 13:49:13,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780348418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:49:13,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:49:13,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:49:13,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318178686] [2022-12-13 13:49:13,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:49:13,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:49:13,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:49:13,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:49:13,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:49:13,263 INFO L87 Difference]: Start difference. First operand 197046 states and 289327 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:49:52,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:49:52,295 INFO L93 Difference]: Finished difference Result 560694 states and 821885 transitions. [2022-12-13 13:49:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:49:52,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 314 [2022-12-13 13:49:52,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:49:52,856 INFO L225 Difference]: With dead ends: 560694 [2022-12-13 13:49:52,856 INFO L226 Difference]: Without dead ends: 364550 [2022-12-13 13:49:52,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:49:52,982 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 1225 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 4031 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:49:52,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 4031 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:49:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364550 states. [2022-12-13 13:50:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364550 to 364342. [2022-12-13 13:50:33,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364342 states, 364330 states have (on average 1.4561112178519473) internal successors, (530505), 364341 states have internal predecessors, (530505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:34,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364342 states to 364342 states and 530505 transitions. [2022-12-13 13:50:34,214 INFO L78 Accepts]: Start accepts. Automaton has 364342 states and 530505 transitions. Word has length 314 [2022-12-13 13:50:34,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:50:34,214 INFO L495 AbstractCegarLoop]: Abstraction has 364342 states and 530505 transitions. [2022-12-13 13:50:34,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:50:34,214 INFO L276 IsEmpty]: Start isEmpty. Operand 364342 states and 530505 transitions. [2022-12-13 13:50:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-13 13:50:34,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:50:34,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:34,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 13:50:34,598 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:50:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:50:34,599 INFO L85 PathProgramCache]: Analyzing trace with hash -838503711, now seen corresponding path program 1 times [2022-12-13 13:50:34,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:50:34,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990320068] [2022-12-13 13:50:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:50:34,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:50:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:50:34,883 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 13:50:34,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:50:34,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990320068] [2022-12-13 13:50:34,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990320068] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:50:34,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:50:34,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:50:34,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324484143] [2022-12-13 13:50:34,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:50:34,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:50:34,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:50:34,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:50:34,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:50:34,886 INFO L87 Difference]: Start difference. First operand 364342 states and 530505 transitions. Second operand has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:51:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:51:56,768 INFO L93 Difference]: Finished difference Result 1076307 states and 1564619 transitions. [2022-12-13 13:51:56,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:51:56,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 314 [2022-12-13 13:51:56,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:51:57,997 INFO L225 Difference]: With dead ends: 1076307 [2022-12-13 13:51:57,997 INFO L226 Difference]: Without dead ends: 712346 [2022-12-13 13:51:58,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:51:58,422 INFO L413 NwaCegarLoop]: 2277 mSDtfsCounter, 2649 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2649 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:51:58,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2649 Valid, 4909 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:51:58,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712346 states. [2022-12-13 13:53:23,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712346 to 712190. [2022-12-13 13:53:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712190 states, 712178 states have (on average 1.443886219456372) internal successors, (1028304), 712189 states have internal predecessors, (1028304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:53:25,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712190 states to 712190 states and 1028304 transitions. [2022-12-13 13:53:25,560 INFO L78 Accepts]: Start accepts. Automaton has 712190 states and 1028304 transitions. Word has length 314 [2022-12-13 13:53:25,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:53:25,560 INFO L495 AbstractCegarLoop]: Abstraction has 712190 states and 1028304 transitions. [2022-12-13 13:53:25,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.8) internal successors, (314), 5 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:53:25,560 INFO L276 IsEmpty]: Start isEmpty. Operand 712190 states and 1028304 transitions. [2022-12-13 13:53:26,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-12-13 13:53:26,306 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:53:26,306 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:53:26,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 13:53:26,306 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 13:53:26,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:53:26,307 INFO L85 PathProgramCache]: Analyzing trace with hash 37971119, now seen corresponding path program 1 times [2022-12-13 13:53:26,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:53:26,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923925711] [2022-12-13 13:53:26,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:53:26,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:53:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:53:26,636 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 13:53:26,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:53:26,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923925711] [2022-12-13 13:53:26,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923925711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:53:26,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:53:26,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:53:26,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739094904] [2022-12-13 13:53:26,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:53:26,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:53:26,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:53:26,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:53:26,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:53:26,639 INFO L87 Difference]: Start difference. First operand 712190 states and 1028304 transitions. Second operand has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:56:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:56:25,138 INFO L93 Difference]: Finished difference Result 2104721 states and 3033709 transitions. [2022-12-13 13:56:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:56:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 316 [2022-12-13 13:56:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:56:27,642 INFO L225 Difference]: With dead ends: 2104721 [2022-12-13 13:56:27,642 INFO L226 Difference]: Without dead ends: 1393138 [2022-12-13 13:56:28,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:56:28,272 INFO L413 NwaCegarLoop]: 2333 mSDtfsCounter, 2618 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2618 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:56:28,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2618 Valid, 4933 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:56:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393138 states.