./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8 --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 64bit --witnessprinter.graph.data.programhash 0834fd89d34a9c299041dacc1570067071b8182096b2df884fb948ae67d29fc7 --- 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-e04fb08 [2022-11-16 11:41:40,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:41:40,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:41:40,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:41:40,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:41:40,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:41:40,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:41:40,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:41:40,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:41:40,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:41:40,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:41:40,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:41:40,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:41:40,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:41:40,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:41:40,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:41:40,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:41:40,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:41:40,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:41:40,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:41:40,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:41:40,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:41:40,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:41:40,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:41:40,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:41:40,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:41:40,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:41:40,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:41:40,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:41:40,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:41:40,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:41:40,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:41:40,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:41:40,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:41:40,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:41:40,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:41:40,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:41:40,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:41:40,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:41:40,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:41:40,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:41:40,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:41:40,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:41:40,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:41:40,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:41:40,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:41:40,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:41:40,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:41:40,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:41:40,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:41:40,197 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:41:40,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:41:40,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:41:40,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:41:40,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:41:40,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:41:40,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:41:40,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:41:40,200 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:41:40,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:41:40,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:41:40,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:41:40,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:41:40,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:41:40,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:41:40,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:41:40,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:41:40,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:41:40,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:41:40,212 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:41:40,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:41:40,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:41:40,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0834fd89d34a9c299041dacc1570067071b8182096b2df884fb948ae67d29fc7 [2022-11-16 11:41:40,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:41:40,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:41:40,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:41:40,602 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:41:40,604 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:41:40,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c [2022-11-16 11:41:40,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/data/42f277a9d/b8a3f85e71a64d23a2f6b0ac28111837/FLAG66f8d5310 [2022-11-16 11:41:41,760 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:41:41,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c [2022-11-16 11:41:41,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/data/42f277a9d/b8a3f85e71a64d23a2f6b0ac28111837/FLAG66f8d5310 [2022-11-16 11:41:42,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/data/42f277a9d/b8a3f85e71a64d23a2f6b0ac28111837 [2022-11-16 11:41:42,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:41:42,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:41:42,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:41:42,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:41:42,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:41:42,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:42" (1/1) ... [2022-11-16 11:41:42,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@138537d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:42, skipping insertion in model container [2022-11-16 11:41:42,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:41:42" (1/1) ... [2022-11-16 11:41:42,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:41:42,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:41:42,782 WARN L229 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_ffa92824-7911-43e8-8ac9-0199fd462fdd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c[1110,1123] [2022-11-16 11:41:44,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:41:44,232 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:41:44,244 WARN L229 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_ffa92824-7911-43e8-8ac9-0199fd462fdd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c[1110,1123] [2022-11-16 11:41:45,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:41:45,082 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:41:45,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45 WrapperNode [2022-11-16 11:41:45,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:41:45,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:41:45,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:41:45,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:41:45,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:45,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:46,179 INFO L138 Inliner]: procedures = 11, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18309 [2022-11-16 11:41:46,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:41:46,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:41:46,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:41:46,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:41:46,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:46,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:46,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:46,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:46,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:47,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:47,117 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:47,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:47,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:41:47,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:41:47,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:41:47,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:41:47,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (1/1) ... [2022-11-16 11:41:47,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:41:47,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:41:47,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:41:47,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffa92824-7911-43e8-8ac9-0199fd462fdd/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:41:47,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:41:47,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:41:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:41:47,551 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:41:49,617 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:41:49,620 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:42:56,184 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:42:56,223 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:42:56,223 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:42:56,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:42:56 BoogieIcfgContainer [2022-11-16 11:42:56,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:42:56,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:42:56,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:42:56,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:42:56,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:41:42" (1/3) ... [2022-11-16 11:42:56,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6c3c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:42:56, skipping insertion in model container [2022-11-16 11:42:56,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:41:45" (2/3) ... [2022-11-16 11:42:56,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6c3c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:42:56, skipping insertion in model container [2022-11-16 11:42:56,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:42:56" (3/3) ... [2022-11-16 11:42:56,241 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n3_w16_d128_e0.c [2022-11-16 11:42:56,266 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:42:56,266 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:42:56,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:42:56,398 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;@788da1ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:42:56,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:42:56,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 2657 states, 2644 states have (on average 1.6630105900151286) internal successors, (4397), 2645 states have internal predecessors, (4397), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 11:42:56,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-16 11:42:56,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:42:56,484 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:56,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:42:56,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:56,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1943964518, now seen corresponding path program 1 times [2022-11-16 11:42:56,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:56,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948599626] [2022-11-16 11:42:56,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:56,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:42:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:42:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:42:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:42:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:42:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 11:42:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:42:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 11:42:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 11:42:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 11:42:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:59,974 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:42:59,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:59,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948599626] [2022-11-16 11:42:59,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948599626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:59,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:59,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:42:59,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823325957] [2022-11-16 11:42:59,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:59,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:42:59,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:00,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:43:00,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:43:00,049 INFO L87 Difference]: Start difference. First operand has 2657 states, 2644 states have (on average 1.6630105900151286) internal successors, (4397), 2645 states have internal predecessors, (4397), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 272.0) internal successors, (544), 2 states have internal predecessors, (544), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:43:00,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:00,223 INFO L93 Difference]: Finished difference Result 5308 states and 8839 transitions. [2022-11-16 11:43:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:43:00,226 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 272.0) internal successors, (544), 2 states have internal predecessors, (544), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 591 [2022-11-16 11:43:00,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:00,262 INFO L225 Difference]: With dead ends: 5308 [2022-11-16 11:43:00,263 INFO L226 Difference]: Without dead ends: 2653 [2022-11-16 11:43:00,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:43:00,291 INFO L413 NwaCegarLoop]: 4410 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:00,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4410 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:43:00,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2022-11-16 11:43:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2653. [2022-11-16 11:43:00,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2641 states have (on average 1.662249148049981) internal successors, (4390), 2641 states have internal predecessors, (4390), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 11:43:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 4410 transitions. [2022-11-16 11:43:00,465 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 4410 transitions. Word has length 591 [2022-11-16 11:43:00,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:00,466 INFO L495 AbstractCegarLoop]: Abstraction has 2653 states and 4410 transitions. [2022-11-16 11:43:00,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 272.0) internal successors, (544), 2 states have internal predecessors, (544), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:43:00,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 4410 transitions. [2022-11-16 11:43:00,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-16 11:43:00,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:00,488 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:43:00,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:43:00,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:43:00,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:00,490 INFO L85 PathProgramCache]: Analyzing trace with hash -585237550, now seen corresponding path program 1 times [2022-11-16 11:43:00,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:00,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113017946] [2022-11-16 11:43:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:00,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:12,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:43:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:12,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:43:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:13,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:43:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:13,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:43:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:13,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:43:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:13,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 11:43:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:13,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:43:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:13,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 11:43:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:13,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 11:43:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 11:43:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:43:13,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:13,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113017946] [2022-11-16 11:43:13,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113017946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:13,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:13,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:43:13,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091639242] [2022-11-16 11:43:13,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:13,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:43:13,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:13,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:43:13,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:43:13,077 INFO L87 Difference]: Start difference. First operand 2653 states and 4410 transitions. Second operand has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:43:14,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:43:14,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:14,891 INFO L93 Difference]: Finished difference Result 6109 states and 10158 transitions. [2022-11-16 11:43:14,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:43:14,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 591 [2022-11-16 11:43:14,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:14,924 INFO L225 Difference]: With dead ends: 6109 [2022-11-16 11:43:14,925 INFO L226 Difference]: Without dead ends: 6107 [2022-11-16 11:43:14,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:43:14,933 INFO L413 NwaCegarLoop]: 7022 mSDtfsCounter, 11882 mSDsluCounter, 7112 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11892 SdHoareTripleChecker+Valid, 14134 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:14,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11892 Valid, 14134 Invalid, 39 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:43:14,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6107 states. [2022-11-16 11:43:15,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6107 to 2655. [2022-11-16 11:43:15,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2643 states have (on average 1.6617480136208853) internal successors, (4392), 2643 states have internal predecessors, (4392), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 11:43:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 4412 transitions. [2022-11-16 11:43:15,070 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 4412 transitions. Word has length 591 [2022-11-16 11:43:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:15,077 INFO L495 AbstractCegarLoop]: Abstraction has 2655 states and 4412 transitions. [2022-11-16 11:43:15,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:43:15,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 4412 transitions. [2022-11-16 11:43:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-11-16 11:43:15,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:15,098 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:43:15,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:43:15,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:43:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:15,100 INFO L85 PathProgramCache]: Analyzing trace with hash -960707160, now seen corresponding path program 1 times [2022-11-16 11:43:15,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:15,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256273502] [2022-11-16 11:43:15,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:15,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:43:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:43:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:43:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:43:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:43:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-16 11:43:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-16 11:43:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 11:43:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 11:43:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 11:43:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:43:20,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:20,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256273502] [2022-11-16 11:43:20,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256273502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:20,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:20,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:43:20,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796814130] [2022-11-16 11:43:20,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:20,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:43:20,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:20,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:43:20,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:43:20,394 INFO L87 Difference]: Start difference. First operand 2655 states and 4412 transitions. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:43:21,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:43:27,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:27,038 INFO L93 Difference]: Finished difference Result 10158 states and 16744 transitions. [2022-11-16 11:43:27,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:43:27,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 592 [2022-11-16 11:43:27,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:27,056 INFO L225 Difference]: With dead ends: 10158 [2022-11-16 11:43:27,056 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:43:27,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:43:27,063 INFO L413 NwaCegarLoop]: 7083 mSDtfsCounter, 18662 mSDsluCounter, 9640 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18682 SdHoareTripleChecker+Valid, 16723 SdHoareTripleChecker+Invalid, 3302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:27,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18682 Valid, 16723 Invalid, 3302 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [465 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-16 11:43:27,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:43:27,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 2655. [2022-11-16 11:43:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2643 states have (on average 1.6613696556942867) internal successors, (4391), 2643 states have internal predecessors, (4391), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 11:43:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 4411 transitions. [2022-11-16 11:43:27,140 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 4411 transitions. Word has length 592 [2022-11-16 11:43:27,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:27,141 INFO L495 AbstractCegarLoop]: Abstraction has 2655 states and 4411 transitions. [2022-11-16 11:43:27,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:43:27,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 4411 transitions. [2022-11-16 11:43:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2022-11-16 11:43:27,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:27,156 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:43:27,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:43:27,156 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:43:27,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:27,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1897484088, now seen corresponding path program 1 times [2022-11-16 11:43:27,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:27,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906417453] [2022-11-16 11:43:27,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:27,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:43:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:43:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:43:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:43:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:43:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:43:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:43:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:43:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:43:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:43:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:29,742 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:43:29,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:29,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906417453] [2022-11-16 11:43:29,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906417453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:29,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:29,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:43:29,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426092554] [2022-11-16 11:43:29,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:29,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:43:29,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:29,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:43:29,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:43:29,750 INFO L87 Difference]: Start difference. First operand 2655 states and 4411 transitions. Second operand has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:43:39,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:39,033 INFO L93 Difference]: Finished difference Result 13247 states and 22024 transitions. [2022-11-16 11:43:39,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:43:39,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 593 [2022-11-16 11:43:39,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:39,080 INFO L225 Difference]: With dead ends: 13247 [2022-11-16 11:43:39,080 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:43:39,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:43:39,087 INFO L413 NwaCegarLoop]: 2717 mSDtfsCounter, 34503 mSDsluCounter, 5342 mSDsCounter, 0 mSdLazyCounter, 5729 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34507 SdHoareTripleChecker+Valid, 8059 SdHoareTripleChecker+Invalid, 5785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 5729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:39,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34507 Valid, 8059 Invalid, 5785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 5729 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-16 11:43:39,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:43:39,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 2655. [2022-11-16 11:43:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2643 states have (on average 1.6609912977676882) internal successors, (4390), 2643 states have internal predecessors, (4390), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 11:43:39,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 4410 transitions. [2022-11-16 11:43:39,206 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 4410 transitions. Word has length 593 [2022-11-16 11:43:39,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:39,206 INFO L495 AbstractCegarLoop]: Abstraction has 2655 states and 4410 transitions. [2022-11-16 11:43:39,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:43:39,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 4410 transitions. [2022-11-16 11:43:39,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2022-11-16 11:43:39,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:39,213 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:43:39,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:43:39,214 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:43:39,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:39,214 INFO L85 PathProgramCache]: Analyzing trace with hash -954826366, now seen corresponding path program 1 times [2022-11-16 11:43:39,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:39,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209631071] [2022-11-16 11:43:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:39,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:43:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:43:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:43:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:43:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:43:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:43:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:43:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:43:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:43:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:43:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:41,177 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:43:41,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:41,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209631071] [2022-11-16 11:43:41,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209631071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:41,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:41,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:43:41,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695887254] [2022-11-16 11:43:41,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:41,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:43:41,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:41,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:43:41,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:43:41,181 INFO L87 Difference]: Start difference. First operand 2655 states and 4410 transitions. Second operand has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:43:49,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:43:49,012 INFO L93 Difference]: Finished difference Result 7999 states and 13291 transitions. [2022-11-16 11:43:49,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:43:49,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 594 [2022-11-16 11:43:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:43:49,026 INFO L225 Difference]: With dead ends: 7999 [2022-11-16 11:43:49,027 INFO L226 Difference]: Without dead ends: 5346 [2022-11-16 11:43:49,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:43:49,032 INFO L413 NwaCegarLoop]: 7071 mSDtfsCounter, 8727 mSDsluCounter, 10583 mSDsCounter, 0 mSdLazyCounter, 9065 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8741 SdHoareTripleChecker+Valid, 17654 SdHoareTripleChecker+Invalid, 9067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:43:49,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8741 Valid, 17654 Invalid, 9067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 9065 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-16 11:43:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5346 states. [2022-11-16 11:43:49,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5346 to 5302. [2022-11-16 11:43:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6613636363636364) internal successors, (8772), 5280 states have internal predecessors, (8772), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:43:49,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8812 transitions. [2022-11-16 11:43:49,161 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8812 transitions. Word has length 594 [2022-11-16 11:43:49,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:43:49,162 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8812 transitions. [2022-11-16 11:43:49,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:43:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8812 transitions. [2022-11-16 11:43:49,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2022-11-16 11:43:49,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:43:49,170 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:43:49,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:43:49,170 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:43:49,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:43:49,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2055512580, now seen corresponding path program 1 times [2022-11-16 11:43:49,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:43:49,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741119477] [2022-11-16 11:43:49,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:43:49,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:43:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:43:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:43:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:43:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:43:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:43:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:43:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:43:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:43:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:43:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:43:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:43:51,673 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:43:51,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:43:51,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741119477] [2022-11-16 11:43:51,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741119477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:43:51,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:43:51,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:43:51,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841558058] [2022-11-16 11:43:51,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:43:51,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:43:51,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:43:51,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:43:51,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:43:51,677 INFO L87 Difference]: Start difference. First operand 5302 states and 8812 transitions. Second operand has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:44:00,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:00,065 INFO L93 Difference]: Finished difference Result 15940 states and 26491 transitions. [2022-11-16 11:44:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:00,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 594 [2022-11-16 11:44:00,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:00,086 INFO L225 Difference]: With dead ends: 15940 [2022-11-16 11:44:00,086 INFO L226 Difference]: Without dead ends: 10640 [2022-11-16 11:44:00,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:44:00,096 INFO L413 NwaCegarLoop]: 3509 mSDtfsCounter, 32554 mSDsluCounter, 5741 mSDsCounter, 0 mSdLazyCounter, 5786 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32558 SdHoareTripleChecker+Valid, 9250 SdHoareTripleChecker+Invalid, 5842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 5786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:00,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32558 Valid, 9250 Invalid, 5842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 5786 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-11-16 11:44:00,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-11-16 11:44:00,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 5302. [2022-11-16 11:44:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6609848484848484) internal successors, (8770), 5280 states have internal predecessors, (8770), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8810 transitions. [2022-11-16 11:44:00,274 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8810 transitions. Word has length 594 [2022-11-16 11:44:00,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:00,275 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8810 transitions. [2022-11-16 11:44:00,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:44:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8810 transitions. [2022-11-16 11:44:00,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-11-16 11:44:00,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:00,284 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:00,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:44:00,285 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:00,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:00,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1622350656, now seen corresponding path program 1 times [2022-11-16 11:44:00,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:00,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278342958] [2022-11-16 11:44:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:00,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:44:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:44:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:44:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:44:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:44:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:44:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:44:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:44:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:44:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:02,292 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:44:02,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:02,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278342958] [2022-11-16 11:44:02,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278342958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:02,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:02,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:02,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287169196] [2022-11-16 11:44:02,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:02,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:44:02,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:02,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:44:02,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:02,296 INFO L87 Difference]: Start difference. First operand 5302 states and 8810 transitions. Second operand has 5 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:44:04,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:11,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:11,048 INFO L93 Difference]: Finished difference Result 7999 states and 13284 transitions. [2022-11-16 11:44:11,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:11,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 595 [2022-11-16 11:44:11,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:11,059 INFO L225 Difference]: With dead ends: 7999 [2022-11-16 11:44:11,060 INFO L226 Difference]: Without dead ends: 5346 [2022-11-16 11:44:11,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:44:11,065 INFO L413 NwaCegarLoop]: 7070 mSDtfsCounter, 8565 mSDsluCounter, 10583 mSDsCounter, 0 mSdLazyCounter, 9057 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8579 SdHoareTripleChecker+Valid, 17653 SdHoareTripleChecker+Invalid, 9058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:11,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8579 Valid, 17653 Invalid, 9058 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 9057 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-11-16 11:44:11,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5346 states. [2022-11-16 11:44:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5346 to 5302. [2022-11-16 11:44:11,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6607954545454546) internal successors, (8769), 5280 states have internal predecessors, (8769), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:11,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8809 transitions. [2022-11-16 11:44:11,177 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8809 transitions. Word has length 595 [2022-11-16 11:44:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:11,178 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8809 transitions. [2022-11-16 11:44:11,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:44:11,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8809 transitions. [2022-11-16 11:44:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-11-16 11:44:11,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:11,185 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:11,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:44:11,186 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:11,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:11,187 INFO L85 PathProgramCache]: Analyzing trace with hash 254659394, now seen corresponding path program 1 times [2022-11-16 11:44:11,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:11,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685770316] [2022-11-16 11:44:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:11,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:44:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:44:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:44:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:44:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:44:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:44:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:44:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:44:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:44:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:44:13,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:13,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685770316] [2022-11-16 11:44:13,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685770316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:13,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:13,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:13,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117073901] [2022-11-16 11:44:13,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:13,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:44:13,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:13,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:44:13,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:13,810 INFO L87 Difference]: Start difference. First operand 5302 states and 8809 transitions. Second operand has 5 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:44:22,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:22,536 INFO L93 Difference]: Finished difference Result 15940 states and 26482 transitions. [2022-11-16 11:44:22,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:22,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 595 [2022-11-16 11:44:22,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:22,561 INFO L225 Difference]: With dead ends: 15940 [2022-11-16 11:44:22,561 INFO L226 Difference]: Without dead ends: 10640 [2022-11-16 11:44:22,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:44:22,571 INFO L413 NwaCegarLoop]: 4278 mSDtfsCounter, 30653 mSDsluCounter, 6118 mSDsCounter, 0 mSdLazyCounter, 5802 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30657 SdHoareTripleChecker+Valid, 10396 SdHoareTripleChecker+Invalid, 5858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 5802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:22,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30657 Valid, 10396 Invalid, 5858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 5802 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-16 11:44:22,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-11-16 11:44:22,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 5302. [2022-11-16 11:44:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6604166666666667) internal successors, (8767), 5280 states have internal predecessors, (8767), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:22,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8807 transitions. [2022-11-16 11:44:22,799 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8807 transitions. Word has length 595 [2022-11-16 11:44:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:22,803 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8807 transitions. [2022-11-16 11:44:22,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.6) internal successors, (548), 5 states have internal predecessors, (548), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:44:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8807 transitions. [2022-11-16 11:44:22,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-11-16 11:44:22,813 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:22,814 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:22,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:44:22,814 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:22,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1737264828, now seen corresponding path program 1 times [2022-11-16 11:44:22,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:22,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719877259] [2022-11-16 11:44:22,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:22,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:44:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:44:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:44:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:44:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:44:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:44:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:44:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:44:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:44:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:44:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:24,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719877259] [2022-11-16 11:44:24,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719877259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:24,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:24,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:24,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059038108] [2022-11-16 11:44:24,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:24,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:44:24,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:24,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:44:24,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:24,871 INFO L87 Difference]: Start difference. First operand 5302 states and 8807 transitions. Second operand has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:44:25,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:33,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:33,029 INFO L93 Difference]: Finished difference Result 7999 states and 13279 transitions. [2022-11-16 11:44:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:44:33,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 596 [2022-11-16 11:44:33,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:33,039 INFO L225 Difference]: With dead ends: 7999 [2022-11-16 11:44:33,040 INFO L226 Difference]: Without dead ends: 5346 [2022-11-16 11:44:33,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:44:33,045 INFO L413 NwaCegarLoop]: 7069 mSDtfsCounter, 8403 mSDsluCounter, 10583 mSDsCounter, 0 mSdLazyCounter, 9049 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8417 SdHoareTripleChecker+Valid, 17652 SdHoareTripleChecker+Invalid, 9050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:33,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8417 Valid, 17652 Invalid, 9050 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 9049 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-11-16 11:44:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5346 states. [2022-11-16 11:44:33,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5346 to 5302. [2022-11-16 11:44:33,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6602272727272727) internal successors, (8766), 5280 states have internal predecessors, (8766), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:33,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8806 transitions. [2022-11-16 11:44:33,151 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8806 transitions. Word has length 596 [2022-11-16 11:44:33,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:33,152 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8806 transitions. [2022-11-16 11:44:33,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 11:44:33,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8806 transitions. [2022-11-16 11:44:33,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-11-16 11:44:33,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:33,160 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:33,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:44:33,160 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:33,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:33,161 INFO L85 PathProgramCache]: Analyzing trace with hash -2059145666, now seen corresponding path program 1 times [2022-11-16 11:44:33,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:33,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968276514] [2022-11-16 11:44:33,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:33,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:44:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:44:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:44:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:44:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:44:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:44:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:44:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:44:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:44:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:44:37,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:37,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968276514] [2022-11-16 11:44:37,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968276514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:37,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:37,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:44:37,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352737243] [2022-11-16 11:44:37,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:37,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:44:37,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:37,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:44:37,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:44:37,487 INFO L87 Difference]: Start difference. First operand 5302 states and 8806 transitions. Second operand has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:38,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:38,473 INFO L93 Difference]: Finished difference Result 15894 states and 26403 transitions. [2022-11-16 11:44:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:44:38,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 596 [2022-11-16 11:44:38,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:38,487 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:44:38,487 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:44:38,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:38,496 INFO L413 NwaCegarLoop]: 8664 mSDtfsCounter, 8693 mSDsluCounter, 4357 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8693 SdHoareTripleChecker+Valid, 13021 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:38,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8693 Valid, 13021 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:44:38,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:44:38,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:44:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.659848484848485) internal successors, (8764), 5280 states have internal predecessors, (8764), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8804 transitions. [2022-11-16 11:44:38,631 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8804 transitions. Word has length 596 [2022-11-16 11:44:38,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:38,631 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8804 transitions. [2022-11-16 11:44:38,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.25) internal successors, (549), 4 states have internal predecessors, (549), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:38,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8804 transitions. [2022-11-16 11:44:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2022-11-16 11:44:38,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:38,639 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:38,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:44:38,639 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:38,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:38,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1607924840, now seen corresponding path program 1 times [2022-11-16 11:44:38,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:38,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86772487] [2022-11-16 11:44:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:38,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:44:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:44:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:44:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:44:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:44:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:44:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:44:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:44:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:44:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:44:40,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:40,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86772487] [2022-11-16 11:44:40,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86772487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:40,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:40,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853542138] [2022-11-16 11:44:40,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:40,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:44:40,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:40,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:44:40,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:40,464 INFO L87 Difference]: Start difference. First operand 5302 states and 8804 transitions. Second operand has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:41,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:41,616 INFO L93 Difference]: Finished difference Result 15894 states and 26397 transitions. [2022-11-16 11:44:41,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:44:41,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 597 [2022-11-16 11:44:41,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:41,626 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:44:41,626 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:44:41,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:41,636 INFO L413 NwaCegarLoop]: 4490 mSDtfsCounter, 12988 mSDsluCounter, 4382 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12998 SdHoareTripleChecker+Valid, 8872 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:41,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12998 Valid, 8872 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:44:41,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:44:41,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:44:41,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.659469696969697) internal successors, (8762), 5280 states have internal predecessors, (8762), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:41,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8802 transitions. [2022-11-16 11:44:41,793 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8802 transitions. Word has length 597 [2022-11-16 11:44:41,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:41,793 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8802 transitions. [2022-11-16 11:44:41,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:41,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8802 transitions. [2022-11-16 11:44:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-11-16 11:44:41,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:41,800 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:41,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:44:41,801 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:41,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:41,802 INFO L85 PathProgramCache]: Analyzing trace with hash -86395678, now seen corresponding path program 1 times [2022-11-16 11:44:41,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:41,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198242277] [2022-11-16 11:44:41,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:41,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:44:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:44:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:44:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:44:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:44:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:44:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:44:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:44:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:44:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:44:44,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:44,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198242277] [2022-11-16 11:44:44,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198242277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:44,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:44,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:44,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313263018] [2022-11-16 11:44:44,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:44,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:44:44,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:44,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:44:44,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:44,374 INFO L87 Difference]: Start difference. First operand 5302 states and 8802 transitions. Second operand has 5 states, 5 states have (on average 110.2) internal successors, (551), 5 states have internal predecessors, (551), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:45,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:45,220 INFO L93 Difference]: Finished difference Result 15894 states and 26391 transitions. [2022-11-16 11:44:45,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:44:45,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 110.2) internal successors, (551), 5 states have internal predecessors, (551), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 598 [2022-11-16 11:44:45,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:45,229 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:44:45,230 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:44:45,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:45,235 INFO L413 NwaCegarLoop]: 4868 mSDtfsCounter, 20594 mSDsluCounter, 4357 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20604 SdHoareTripleChecker+Valid, 9225 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:45,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20604 Valid, 9225 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:44:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:44:45,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:44:45,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6590909090909092) internal successors, (8760), 5280 states have internal predecessors, (8760), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8800 transitions. [2022-11-16 11:44:45,385 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8800 transitions. Word has length 598 [2022-11-16 11:44:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:45,386 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8800 transitions. [2022-11-16 11:44:45,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.2) internal successors, (551), 5 states have internal predecessors, (551), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:45,386 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8800 transitions. [2022-11-16 11:44:45,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2022-11-16 11:44:45,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:45,393 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:45,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:44:45,393 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:45,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:45,394 INFO L85 PathProgramCache]: Analyzing trace with hash -2144480780, now seen corresponding path program 1 times [2022-11-16 11:44:45,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:45,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757800050] [2022-11-16 11:44:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:45,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:44:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:44:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:44:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:44:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:44:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:44:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:44:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:44:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:44:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:47,755 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:44:47,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:47,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757800050] [2022-11-16 11:44:47,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757800050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:47,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:47,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:47,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386731958] [2022-11-16 11:44:47,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:47,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:44:47,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:47,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:44:47,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:47,759 INFO L87 Difference]: Start difference. First operand 5302 states and 8800 transitions. Second operand has 5 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:48,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:48,836 INFO L93 Difference]: Finished difference Result 15894 states and 26385 transitions. [2022-11-16 11:44:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:44:48,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 599 [2022-11-16 11:44:48,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:48,844 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:44:48,844 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:44:48,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:48,850 INFO L413 NwaCegarLoop]: 8666 mSDtfsCounter, 8751 mSDsluCounter, 4382 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8761 SdHoareTripleChecker+Valid, 13048 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:48,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8761 Valid, 13048 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:44:48,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:44:48,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:44:48,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6587121212121212) internal successors, (8758), 5280 states have internal predecessors, (8758), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:48,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8798 transitions. [2022-11-16 11:44:48,995 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8798 transitions. Word has length 599 [2022-11-16 11:44:48,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:48,996 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8798 transitions. [2022-11-16 11:44:48,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:48,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8798 transitions. [2022-11-16 11:44:49,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2022-11-16 11:44:49,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:49,005 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:49,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:44:49,005 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:49,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:49,006 INFO L85 PathProgramCache]: Analyzing trace with hash 577902906, now seen corresponding path program 1 times [2022-11-16 11:44:49,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:49,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777094542] [2022-11-16 11:44:49,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:49,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:44:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:44:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:44:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:44:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:44:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:44:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:44:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:44:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:44:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:44:51,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:51,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777094542] [2022-11-16 11:44:51,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777094542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:51,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:51,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:51,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470096377] [2022-11-16 11:44:51,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:51,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:44:51,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:51,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:44:51,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:51,295 INFO L87 Difference]: Start difference. First operand 5302 states and 8798 transitions. Second operand has 5 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:53,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:44:53,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:53,787 INFO L93 Difference]: Finished difference Result 15894 states and 26379 transitions. [2022-11-16 11:44:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:44:53,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 600 [2022-11-16 11:44:53,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:53,801 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:44:53,801 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:44:53,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:53,810 INFO L413 NwaCegarLoop]: 5249 mSDtfsCounter, 12199 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12209 SdHoareTripleChecker+Valid, 9630 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:53,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12209 Valid, 9630 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-16 11:44:53,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:44:53,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:44:53,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6583333333333334) internal successors, (8756), 5280 states have internal predecessors, (8756), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:53,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8796 transitions. [2022-11-16 11:44:53,974 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8796 transitions. Word has length 600 [2022-11-16 11:44:53,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:53,975 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8796 transitions. [2022-11-16 11:44:53,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.6) internal successors, (553), 5 states have internal predecessors, (553), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:53,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8796 transitions. [2022-11-16 11:44:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2022-11-16 11:44:53,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:53,984 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:53,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:44:53,985 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:53,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:53,985 INFO L85 PathProgramCache]: Analyzing trace with hash -2059948374, now seen corresponding path program 1 times [2022-11-16 11:44:53,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:53,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584177499] [2022-11-16 11:44:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:53,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:55,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:44:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:55,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:44:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:55,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:44:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:44:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:44:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:44:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:44:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:44:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:44:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:44:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:44:56,049 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:44:56,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:44:56,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584177499] [2022-11-16 11:44:56,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584177499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:44:56,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:44:56,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:44:56,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646777904] [2022-11-16 11:44:56,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:44:56,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:44:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:44:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:44:56,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:44:56,054 INFO L87 Difference]: Start difference. First operand 5302 states and 8796 transitions. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:57,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:44:57,028 INFO L93 Difference]: Finished difference Result 15894 states and 26373 transitions. [2022-11-16 11:44:57,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:44:57,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 601 [2022-11-16 11:44:57,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:44:57,039 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:44:57,039 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:44:57,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:44:57,046 INFO L413 NwaCegarLoop]: 5252 mSDtfsCounter, 19623 mSDsluCounter, 4358 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19633 SdHoareTripleChecker+Valid, 9610 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:44:57,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19633 Valid, 9610 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:44:57,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:44:57,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:44:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6579545454545455) internal successors, (8754), 5280 states have internal predecessors, (8754), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:44:57,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8794 transitions. [2022-11-16 11:44:57,230 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8794 transitions. Word has length 601 [2022-11-16 11:44:57,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:44:57,231 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8794 transitions. [2022-11-16 11:44:57,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:44:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8794 transitions. [2022-11-16 11:44:57,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-11-16 11:44:57,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:44:57,242 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:44:57,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:44:57,243 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:44:57,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:44:57,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1859450784, now seen corresponding path program 1 times [2022-11-16 11:44:57,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:44:57,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345871694] [2022-11-16 11:44:57,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:44:57,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:44:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:01,064 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:01,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:01,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345871694] [2022-11-16 11:45:01,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345871694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:01,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:01,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:45:01,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382481881] [2022-11-16 11:45:01,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:01,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:45:01,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:01,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:45:01,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:45:01,068 INFO L87 Difference]: Start difference. First operand 5302 states and 8794 transitions. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:02,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:02,187 INFO L93 Difference]: Finished difference Result 10602 states and 17586 transitions. [2022-11-16 11:45:02,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:02,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 602 [2022-11-16 11:45:02,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:02,191 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:45:02,191 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:45:02,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:02,195 INFO L413 NwaCegarLoop]: 4335 mSDtfsCounter, 4149 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4149 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:02,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4149 Valid, 8672 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:45:02,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:45:02,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:45:02,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6575757575757575) internal successors, (8752), 5280 states have internal predecessors, (8752), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:02,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8792 transitions. [2022-11-16 11:45:02,300 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8792 transitions. Word has length 602 [2022-11-16 11:45:02,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:02,301 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8792 transitions. [2022-11-16 11:45:02,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:02,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8792 transitions. [2022-11-16 11:45:02,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-11-16 11:45:02,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:02,310 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:02,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:45:02,310 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:02,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:02,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1768140578, now seen corresponding path program 1 times [2022-11-16 11:45:02,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:02,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153621536] [2022-11-16 11:45:02,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:02,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:05,924 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:05,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:05,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153621536] [2022-11-16 11:45:05,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153621536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:05,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:05,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:45:05,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278085150] [2022-11-16 11:45:05,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:05,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:45:05,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:05,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:45:05,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:45:05,928 INFO L87 Difference]: Start difference. First operand 5302 states and 8792 transitions. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:06,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:06,878 INFO L93 Difference]: Finished difference Result 10602 states and 17582 transitions. [2022-11-16 11:45:06,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:06,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 602 [2022-11-16 11:45:06,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:06,886 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:45:06,886 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:45:06,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:06,892 INFO L413 NwaCegarLoop]: 4335 mSDtfsCounter, 3987 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:06,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3987 Valid, 8672 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:45:06,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:45:06,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:45:06,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6571969696969697) internal successors, (8750), 5280 states have internal predecessors, (8750), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:06,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8790 transitions. [2022-11-16 11:45:06,997 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8790 transitions. Word has length 602 [2022-11-16 11:45:06,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:06,998 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8790 transitions. [2022-11-16 11:45:06,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:06,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8790 transitions. [2022-11-16 11:45:07,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-11-16 11:45:07,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:07,005 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:07,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:45:07,006 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:07,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1956554912, now seen corresponding path program 1 times [2022-11-16 11:45:07,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:07,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017749837] [2022-11-16 11:45:07,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:07,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017749837] [2022-11-16 11:45:11,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017749837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:11,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:11,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:45:11,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654524191] [2022-11-16 11:45:11,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:11,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:45:11,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:11,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:45:11,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:45:11,725 INFO L87 Difference]: Start difference. First operand 5302 states and 8790 transitions. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:12,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:12,440 INFO L93 Difference]: Finished difference Result 11236 states and 18613 transitions. [2022-11-16 11:45:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:12,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 602 [2022-11-16 11:45:12,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:12,448 INFO L225 Difference]: With dead ends: 11236 [2022-11-16 11:45:12,449 INFO L226 Difference]: Without dead ends: 5936 [2022-11-16 11:45:12,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:12,454 INFO L413 NwaCegarLoop]: 4871 mSDtfsCounter, 8513 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8513 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:12,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8513 Valid, 5435 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:45:12,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2022-11-16 11:45:12,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5302. [2022-11-16 11:45:12,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6568181818181817) internal successors, (8748), 5280 states have internal predecessors, (8748), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:12,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8788 transitions. [2022-11-16 11:45:12,535 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8788 transitions. Word has length 602 [2022-11-16 11:45:12,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:12,535 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8788 transitions. [2022-11-16 11:45:12,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:12,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8788 transitions. [2022-11-16 11:45:12,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2022-11-16 11:45:12,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:12,544 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:12,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:45:12,544 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:12,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:12,545 INFO L85 PathProgramCache]: Analyzing trace with hash -804057182, now seen corresponding path program 1 times [2022-11-16 11:45:12,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:12,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170470585] [2022-11-16 11:45:12,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:12,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:16,068 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:16,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:16,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170470585] [2022-11-16 11:45:16,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170470585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:16,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:16,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:45:16,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681268938] [2022-11-16 11:45:16,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:16,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:45:16,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:16,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:45:16,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:45:16,073 INFO L87 Difference]: Start difference. First operand 5302 states and 8788 transitions. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:17,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:17,125 INFO L93 Difference]: Finished difference Result 15894 states and 26349 transitions. [2022-11-16 11:45:17,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:17,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 602 [2022-11-16 11:45:17,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:17,138 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:17,138 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:17,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:17,143 INFO L413 NwaCegarLoop]: 4448 mSDtfsCounter, 12890 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12890 SdHoareTripleChecker+Valid, 8753 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:17,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12890 Valid, 8753 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:45:17,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:17,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.656439393939394) internal successors, (8746), 5280 states have internal predecessors, (8746), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:17,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8786 transitions. [2022-11-16 11:45:17,308 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8786 transitions. Word has length 602 [2022-11-16 11:45:17,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:17,309 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8786 transitions. [2022-11-16 11:45:17,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:17,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8786 transitions. [2022-11-16 11:45:17,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2022-11-16 11:45:17,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:17,318 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:17,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:45:17,319 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:17,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1221841870, now seen corresponding path program 1 times [2022-11-16 11:45:17,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:17,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175437972] [2022-11-16 11:45:17,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:17,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:19,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:19,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175437972] [2022-11-16 11:45:19,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175437972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:19,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:19,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:19,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985984201] [2022-11-16 11:45:19,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:19,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:19,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:19,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:19,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:19,379 INFO L87 Difference]: Start difference. First operand 5302 states and 8786 transitions. Second operand has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:20,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:21,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:21,064 INFO L93 Difference]: Finished difference Result 15894 states and 26343 transitions. [2022-11-16 11:45:21,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:21,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 603 [2022-11-16 11:45:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:21,071 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:21,072 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:21,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:21,075 INFO L413 NwaCegarLoop]: 4449 mSDtfsCounter, 21466 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21476 SdHoareTripleChecker+Valid, 8754 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:21,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21476 Valid, 8754 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:45:21,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.656060606060606) internal successors, (8744), 5280 states have internal predecessors, (8744), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8784 transitions. [2022-11-16 11:45:21,174 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8784 transitions. Word has length 603 [2022-11-16 11:45:21,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:21,175 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8784 transitions. [2022-11-16 11:45:21,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8784 transitions. [2022-11-16 11:45:21,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-11-16 11:45:21,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:21,183 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:21,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:45:21,184 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:21,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:21,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1093814520, now seen corresponding path program 1 times [2022-11-16 11:45:21,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:21,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312480691] [2022-11-16 11:45:21,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:21,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:23,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:23,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312480691] [2022-11-16 11:45:23,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312480691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:23,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:23,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:23,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104534072] [2022-11-16 11:45:23,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:23,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:23,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:23,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:23,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:23,149 INFO L87 Difference]: Start difference. First operand 5302 states and 8784 transitions. Second operand has 5 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:24,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:24,782 INFO L93 Difference]: Finished difference Result 15894 states and 26337 transitions. [2022-11-16 11:45:24,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:24,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 604 [2022-11-16 11:45:24,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:24,796 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:24,796 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:24,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:24,804 INFO L413 NwaCegarLoop]: 8560 mSDtfsCounter, 13028 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13038 SdHoareTripleChecker+Valid, 12865 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:24,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13038 Valid, 12865 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:45:24,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:24,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:24,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6556818181818183) internal successors, (8742), 5280 states have internal predecessors, (8742), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8782 transitions. [2022-11-16 11:45:24,933 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8782 transitions. Word has length 604 [2022-11-16 11:45:24,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:24,933 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8782 transitions. [2022-11-16 11:45:24,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:24,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8782 transitions. [2022-11-16 11:45:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-11-16 11:45:24,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:24,942 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:24,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 11:45:24,942 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:24,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:24,943 INFO L85 PathProgramCache]: Analyzing trace with hash 629428214, now seen corresponding path program 1 times [2022-11-16 11:45:24,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:24,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753252222] [2022-11-16 11:45:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:24,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:26,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:26,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753252222] [2022-11-16 11:45:26,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753252222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:26,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:26,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:26,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819657339] [2022-11-16 11:45:26,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:26,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:26,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:26,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:26,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:26,783 INFO L87 Difference]: Start difference. First operand 5302 states and 8782 transitions. Second operand has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:28,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:28,686 INFO L93 Difference]: Finished difference Result 15894 states and 26331 transitions. [2022-11-16 11:45:28,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:28,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 605 [2022-11-16 11:45:28,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:28,699 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:28,699 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:28,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:28,706 INFO L413 NwaCegarLoop]: 4451 mSDtfsCounter, 12939 mSDsluCounter, 4329 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12949 SdHoareTripleChecker+Valid, 8780 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:28,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12949 Valid, 8780 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:45:28,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:28,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:28,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6553030303030303) internal successors, (8740), 5280 states have internal predecessors, (8740), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:28,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8780 transitions. [2022-11-16 11:45:28,882 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8780 transitions. Word has length 605 [2022-11-16 11:45:28,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:28,883 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8780 transitions. [2022-11-16 11:45:28,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:28,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8780 transitions. [2022-11-16 11:45:28,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2022-11-16 11:45:28,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:28,889 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:28,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:45:28,890 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:28,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1270163500, now seen corresponding path program 1 times [2022-11-16 11:45:28,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:28,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469455413] [2022-11-16 11:45:28,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:28,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:30,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:30,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469455413] [2022-11-16 11:45:30,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469455413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:30,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:30,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:30,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156565204] [2022-11-16 11:45:30,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:30,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:30,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:30,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:30,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:30,660 INFO L87 Difference]: Start difference. First operand 5302 states and 8780 transitions. Second operand has 5 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:31,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:31,862 INFO L93 Difference]: Finished difference Result 15894 states and 26325 transitions. [2022-11-16 11:45:31,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:31,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 606 [2022-11-16 11:45:31,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:31,871 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:31,871 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:31,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:31,875 INFO L413 NwaCegarLoop]: 4817 mSDtfsCounter, 20525 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20535 SdHoareTripleChecker+Valid, 9122 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:31,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20535 Valid, 9122 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:45:31,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:31,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:31,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6549242424242425) internal successors, (8738), 5280 states have internal predecessors, (8738), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:31,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8778 transitions. [2022-11-16 11:45:31,967 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8778 transitions. Word has length 606 [2022-11-16 11:45:31,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:31,968 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8778 transitions. [2022-11-16 11:45:31,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:31,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8778 transitions. [2022-11-16 11:45:31,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2022-11-16 11:45:31,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:31,975 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:31,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:45:31,975 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:31,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:31,976 INFO L85 PathProgramCache]: Analyzing trace with hash 2123409254, now seen corresponding path program 1 times [2022-11-16 11:45:31,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:31,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272687837] [2022-11-16 11:45:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:31,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:33,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:33,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272687837] [2022-11-16 11:45:33,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272687837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:33,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:33,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:33,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222308454] [2022-11-16 11:45:33,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:33,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:33,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:33,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:33,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:33,816 INFO L87 Difference]: Start difference. First operand 5302 states and 8778 transitions. Second operand has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:35,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:35,224 INFO L93 Difference]: Finished difference Result 15894 states and 26319 transitions. [2022-11-16 11:45:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:35,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 607 [2022-11-16 11:45:35,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:35,235 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:35,235 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:35,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:35,242 INFO L413 NwaCegarLoop]: 4818 mSDtfsCounter, 20509 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20519 SdHoareTripleChecker+Valid, 9123 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:35,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20519 Valid, 9123 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:45:35,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:35,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:35,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6545454545454545) internal successors, (8736), 5280 states have internal predecessors, (8736), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:35,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8776 transitions. [2022-11-16 11:45:35,449 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8776 transitions. Word has length 607 [2022-11-16 11:45:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:35,449 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8776 transitions. [2022-11-16 11:45:35,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:35,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8776 transitions. [2022-11-16 11:45:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2022-11-16 11:45:35,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:35,456 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:35,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:45:35,456 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:35,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:35,458 INFO L85 PathProgramCache]: Analyzing trace with hash 864002246, now seen corresponding path program 1 times [2022-11-16 11:45:35,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:35,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129016816] [2022-11-16 11:45:35,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:35,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:37,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:37,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129016816] [2022-11-16 11:45:37,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129016816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:37,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:37,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:37,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446869799] [2022-11-16 11:45:37,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:37,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:37,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:37,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:37,508 INFO L87 Difference]: Start difference. First operand 5302 states and 8776 transitions. Second operand has 5 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:38,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:39,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:39,069 INFO L93 Difference]: Finished difference Result 15894 states and 26313 transitions. [2022-11-16 11:45:39,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:39,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 608 [2022-11-16 11:45:39,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:39,081 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:39,081 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:39,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:39,088 INFO L413 NwaCegarLoop]: 4819 mSDtfsCounter, 20493 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20503 SdHoareTripleChecker+Valid, 9124 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:39,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20503 Valid, 9124 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:45:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:39,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:39,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6541666666666666) internal successors, (8734), 5280 states have internal predecessors, (8734), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:39,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8774 transitions. [2022-11-16 11:45:39,198 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8774 transitions. Word has length 608 [2022-11-16 11:45:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:39,199 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8774 transitions. [2022-11-16 11:45:39,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.2) internal successors, (561), 5 states have internal predecessors, (561), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8774 transitions. [2022-11-16 11:45:39,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2022-11-16 11:45:39,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:39,205 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:39,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:45:39,205 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:39,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:39,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1158869824, now seen corresponding path program 1 times [2022-11-16 11:45:39,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:39,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152746629] [2022-11-16 11:45:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:39,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:41,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:41,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152746629] [2022-11-16 11:45:41,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152746629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:41,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:41,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:41,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724944471] [2022-11-16 11:45:41,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:41,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:41,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:41,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:41,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:41,195 INFO L87 Difference]: Start difference. First operand 5302 states and 8774 transitions. Second operand has 5 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:42,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:42,590 INFO L93 Difference]: Finished difference Result 15894 states and 26307 transitions. [2022-11-16 11:45:42,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:42,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 609 [2022-11-16 11:45:42,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:42,600 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:42,601 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:42,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:42,605 INFO L413 NwaCegarLoop]: 8560 mSDtfsCounter, 12845 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12855 SdHoareTripleChecker+Valid, 12865 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:42,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12855 Valid, 12865 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:45:42,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:42,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:42,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6537878787878788) internal successors, (8732), 5280 states have internal predecessors, (8732), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:42,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8772 transitions. [2022-11-16 11:45:42,720 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8772 transitions. Word has length 609 [2022-11-16 11:45:42,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:42,721 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8772 transitions. [2022-11-16 11:45:42,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:42,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8772 transitions. [2022-11-16 11:45:42,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-16 11:45:42,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:42,727 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:42,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 11:45:42,727 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:42,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:42,728 INFO L85 PathProgramCache]: Analyzing trace with hash 2044732446, now seen corresponding path program 1 times [2022-11-16 11:45:42,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:42,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423798028] [2022-11-16 11:45:42,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:42,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:44,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:44,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423798028] [2022-11-16 11:45:44,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423798028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:44,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:44,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:44,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606266489] [2022-11-16 11:45:44,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:44,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:44,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:44,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:44,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:44,963 INFO L87 Difference]: Start difference. First operand 5302 states and 8772 transitions. Second operand has 5 states, 5 states have (on average 112.6) internal successors, (563), 5 states have internal predecessors, (563), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:46,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:46,086 INFO L93 Difference]: Finished difference Result 15894 states and 26301 transitions. [2022-11-16 11:45:46,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:46,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 112.6) internal successors, (563), 5 states have internal predecessors, (563), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 610 [2022-11-16 11:45:46,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:46,097 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:46,097 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:46,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:46,103 INFO L413 NwaCegarLoop]: 8560 mSDtfsCounter, 12686 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12696 SdHoareTripleChecker+Valid, 12865 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:46,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12696 Valid, 12865 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:45:46,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6534090909090908) internal successors, (8730), 5280 states have internal predecessors, (8730), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:46,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8770 transitions. [2022-11-16 11:45:46,200 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8770 transitions. Word has length 610 [2022-11-16 11:45:46,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:46,201 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8770 transitions. [2022-11-16 11:45:46,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.6) internal successors, (563), 5 states have internal predecessors, (563), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8770 transitions. [2022-11-16 11:45:46,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-16 11:45:46,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:46,206 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:46,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:45:46,206 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:46,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:46,207 INFO L85 PathProgramCache]: Analyzing trace with hash 242609044, now seen corresponding path program 1 times [2022-11-16 11:45:46,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:46,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735822654] [2022-11-16 11:45:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:46,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:48,268 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:48,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:48,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735822654] [2022-11-16 11:45:48,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735822654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:48,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:48,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:48,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219403363] [2022-11-16 11:45:48,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:48,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:48,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:48,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:48,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:48,271 INFO L87 Difference]: Start difference. First operand 5302 states and 8770 transitions. Second operand has 5 states, 5 states have (on average 112.8) internal successors, (564), 5 states have internal predecessors, (564), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:49,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:49,740 INFO L93 Difference]: Finished difference Result 15894 states and 26295 transitions. [2022-11-16 11:45:49,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:49,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 112.8) internal successors, (564), 5 states have internal predecessors, (564), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 611 [2022-11-16 11:45:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:49,751 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:49,751 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:49,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:49,756 INFO L413 NwaCegarLoop]: 5188 mSDtfsCounter, 12156 mSDsluCounter, 4329 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12166 SdHoareTripleChecker+Valid, 9517 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:49,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12166 Valid, 9517 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:45:49,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:49,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.653030303030303) internal successors, (8728), 5280 states have internal predecessors, (8728), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8768 transitions. [2022-11-16 11:45:49,863 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8768 transitions. Word has length 611 [2022-11-16 11:45:49,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:49,864 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8768 transitions. [2022-11-16 11:45:49,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.8) internal successors, (564), 5 states have internal predecessors, (564), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:49,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8768 transitions. [2022-11-16 11:45:49,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-16 11:45:49,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:49,870 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:49,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 11:45:49,870 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:49,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:49,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1367360190, now seen corresponding path program 1 times [2022-11-16 11:45:49,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:49,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662845514] [2022-11-16 11:45:49,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:49,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:52,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:52,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662845514] [2022-11-16 11:45:52,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662845514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:52,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:52,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:52,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567640129] [2022-11-16 11:45:52,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:52,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:52,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:52,235 INFO L87 Difference]: Start difference. First operand 5302 states and 8768 transitions. Second operand has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:54,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:45:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:54,758 INFO L93 Difference]: Finished difference Result 15894 states and 26289 transitions. [2022-11-16 11:45:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:54,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 612 [2022-11-16 11:45:54,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:54,772 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:54,772 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:54,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:54,779 INFO L413 NwaCegarLoop]: 5189 mSDtfsCounter, 12149 mSDsluCounter, 4329 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12159 SdHoareTripleChecker+Valid, 9518 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:54,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12159 Valid, 9518 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 11:45:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:54,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:54,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.652651515151515) internal successors, (8726), 5280 states have internal predecessors, (8726), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:54,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8766 transitions. [2022-11-16 11:45:54,896 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8766 transitions. Word has length 612 [2022-11-16 11:45:54,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:54,897 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8766 transitions. [2022-11-16 11:45:54,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:54,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8766 transitions. [2022-11-16 11:45:54,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2022-11-16 11:45:54,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:54,903 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:54,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 11:45:54,903 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:54,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:54,903 INFO L85 PathProgramCache]: Analyzing trace with hash -707914182, now seen corresponding path program 1 times [2022-11-16 11:45:54,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:54,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769931335] [2022-11-16 11:45:54,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:54,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:45:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:45:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:45:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:45:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:45:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:45:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:45:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:45:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:45:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:45:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:45:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:45:57,110 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:45:57,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:45:57,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769931335] [2022-11-16 11:45:57,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769931335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:45:57,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:45:57,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:45:57,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448045202] [2022-11-16 11:45:57,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:45:57,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:45:57,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:45:57,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:45:57,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:45:57,113 INFO L87 Difference]: Start difference. First operand 5302 states and 8766 transitions. Second operand has 5 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:58,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:45:58,231 INFO L93 Difference]: Finished difference Result 15894 states and 26283 transitions. [2022-11-16 11:45:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:45:58,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 613 [2022-11-16 11:45:58,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:45:58,240 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:45:58,240 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:45:58,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:45:58,244 INFO L413 NwaCegarLoop]: 5190 mSDtfsCounter, 12142 mSDsluCounter, 4329 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12152 SdHoareTripleChecker+Valid, 9519 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:45:58,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12152 Valid, 9519 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:45:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:45:58,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:45:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6522727272727273) internal successors, (8724), 5280 states have internal predecessors, (8724), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:45:58,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8764 transitions. [2022-11-16 11:45:58,346 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8764 transitions. Word has length 613 [2022-11-16 11:45:58,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:45:58,346 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8764 transitions. [2022-11-16 11:45:58,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.2) internal successors, (566), 5 states have internal predecessors, (566), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:45:58,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8764 transitions. [2022-11-16 11:45:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:45:58,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:45:58,352 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:45:58,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 11:45:58,352 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:45:58,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:45:58,352 INFO L85 PathProgramCache]: Analyzing trace with hash 118280872, now seen corresponding path program 1 times [2022-11-16 11:45:58,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:45:58,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379570209] [2022-11-16 11:45:58,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:45:58,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:01,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:01,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379570209] [2022-11-16 11:46:01,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379570209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:01,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:01,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:46:01,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453055882] [2022-11-16 11:46:01,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:01,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:46:01,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:01,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:46:01,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:46:01,556 INFO L87 Difference]: Start difference. First operand 5302 states and 8764 transitions. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:02,421 INFO L93 Difference]: Finished difference Result 10602 states and 17526 transitions. [2022-11-16 11:46:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:02,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 614 [2022-11-16 11:46:02,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:02,434 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:46:02,434 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:46:02,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:02,438 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 4118 mSDsluCounter, 4285 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:02,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 8568 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:46:02,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:46:02,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:46:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6518939393939394) internal successors, (8722), 5280 states have internal predecessors, (8722), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:02,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8762 transitions. [2022-11-16 11:46:02,519 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8762 transitions. Word has length 614 [2022-11-16 11:46:02,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:02,520 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8762 transitions. [2022-11-16 11:46:02,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:02,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8762 transitions. [2022-11-16 11:46:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:46:02,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:02,526 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:02,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 11:46:02,526 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:02,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:02,527 INFO L85 PathProgramCache]: Analyzing trace with hash 219650858, now seen corresponding path program 1 times [2022-11-16 11:46:02,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:02,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942737241] [2022-11-16 11:46:02,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:02,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:05,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:05,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942737241] [2022-11-16 11:46:05,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942737241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:05,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:05,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:46:05,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093732032] [2022-11-16 11:46:05,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:05,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:46:05,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:05,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:46:05,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:46:05,748 INFO L87 Difference]: Start difference. First operand 5302 states and 8762 transitions. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:06,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:06,728 INFO L93 Difference]: Finished difference Result 10602 states and 17522 transitions. [2022-11-16 11:46:06,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:06,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 614 [2022-11-16 11:46:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:06,735 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:46:06,735 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:46:06,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:06,739 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 3952 mSDsluCounter, 4285 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3952 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:06,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3952 Valid, 8568 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:46:06,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:46:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:46:06,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6515151515151516) internal successors, (8720), 5280 states have internal predecessors, (8720), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:06,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8760 transitions. [2022-11-16 11:46:06,817 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8760 transitions. Word has length 614 [2022-11-16 11:46:06,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:06,818 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8760 transitions. [2022-11-16 11:46:06,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:06,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8760 transitions. [2022-11-16 11:46:06,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:46:06,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:06,823 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:06,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 11:46:06,823 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:06,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:06,824 INFO L85 PathProgramCache]: Analyzing trace with hash -391618200, now seen corresponding path program 1 times [2022-11-16 11:46:06,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:06,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303071191] [2022-11-16 11:46:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:06,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:10,043 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:10,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:10,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303071191] [2022-11-16 11:46:10,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303071191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:10,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:10,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:46:10,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227161999] [2022-11-16 11:46:10,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:10,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:46:10,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:10,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:46:10,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:46:10,045 INFO L87 Difference]: Start difference. First operand 5302 states and 8760 transitions. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:12,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:12,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:12,394 INFO L93 Difference]: Finished difference Result 10602 states and 17518 transitions. [2022-11-16 11:46:12,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:12,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 614 [2022-11-16 11:46:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:12,399 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:46:12,399 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:46:12,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:12,404 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 4284 mSDsluCounter, 4285 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:12,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4284 Valid, 8568 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-16 11:46:12,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:46:12,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:46:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6511363636363636) internal successors, (8718), 5280 states have internal predecessors, (8718), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:12,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8758 transitions. [2022-11-16 11:46:12,478 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8758 transitions. Word has length 614 [2022-11-16 11:46:12,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:12,479 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8758 transitions. [2022-11-16 11:46:12,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:12,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8758 transitions. [2022-11-16 11:46:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:46:12,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:12,485 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:12,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 11:46:12,485 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:12,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:12,485 INFO L85 PathProgramCache]: Analyzing trace with hash 649519082, now seen corresponding path program 1 times [2022-11-16 11:46:12,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:12,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621072042] [2022-11-16 11:46:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:12,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:15,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:15,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621072042] [2022-11-16 11:46:15,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621072042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:15,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:15,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:46:15,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076721696] [2022-11-16 11:46:15,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:15,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:46:15,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:15,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:46:15,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:46:15,562 INFO L87 Difference]: Start difference. First operand 5302 states and 8758 transitions. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:16,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:16,521 INFO L93 Difference]: Finished difference Result 10602 states and 17514 transitions. [2022-11-16 11:46:16,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:16,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 614 [2022-11-16 11:46:16,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:16,527 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:46:16,527 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:46:16,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:16,531 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 4118 mSDsluCounter, 4285 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:16,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 8568 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:46:16,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:46:16,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:46:16,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6507575757575759) internal successors, (8716), 5280 states have internal predecessors, (8716), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:16,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8756 transitions. [2022-11-16 11:46:16,603 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8756 transitions. Word has length 614 [2022-11-16 11:46:16,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:16,603 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8756 transitions. [2022-11-16 11:46:16,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8756 transitions. [2022-11-16 11:46:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:46:16,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:16,609 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:16,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 11:46:16,609 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:16,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:16,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1200762920, now seen corresponding path program 1 times [2022-11-16 11:46:16,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:16,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881637709] [2022-11-16 11:46:16,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:16,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:19,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:19,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881637709] [2022-11-16 11:46:19,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881637709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:19,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:19,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:46:19,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8766243] [2022-11-16 11:46:19,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:19,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:46:19,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:19,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:46:19,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:46:19,662 INFO L87 Difference]: Start difference. First operand 5302 states and 8756 transitions. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:20,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:20,495 INFO L93 Difference]: Finished difference Result 10602 states and 17510 transitions. [2022-11-16 11:46:20,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:20,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 614 [2022-11-16 11:46:20,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:20,500 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:46:20,500 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:46:20,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:20,504 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 3952 mSDsluCounter, 4285 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3952 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:20,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3952 Valid, 8568 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:46:20,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:46:20,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:46:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.650378787878788) internal successors, (8714), 5280 states have internal predecessors, (8714), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:20,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8754 transitions. [2022-11-16 11:46:20,575 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8754 transitions. Word has length 614 [2022-11-16 11:46:20,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:20,576 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8754 transitions. [2022-11-16 11:46:20,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:20,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8754 transitions. [2022-11-16 11:46:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:46:20,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:20,582 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:20,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 11:46:20,582 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:20,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:20,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1545591082, now seen corresponding path program 1 times [2022-11-16 11:46:20,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:20,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835271048] [2022-11-16 11:46:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:20,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:23,713 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:23,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:23,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835271048] [2022-11-16 11:46:23,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835271048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:23,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:23,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:46:23,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230513165] [2022-11-16 11:46:23,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:23,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:46:23,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:23,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:46:23,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:46:23,716 INFO L87 Difference]: Start difference. First operand 5302 states and 8754 transitions. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:24,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:24,572 INFO L93 Difference]: Finished difference Result 10602 states and 17506 transitions. [2022-11-16 11:46:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:24,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 614 [2022-11-16 11:46:24,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:24,576 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:46:24,576 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:46:24,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:24,580 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 4284 mSDsluCounter, 4285 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:24,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4284 Valid, 8568 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:46:24,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:46:24,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:46:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.65) internal successors, (8712), 5280 states have internal predecessors, (8712), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8752 transitions. [2022-11-16 11:46:24,658 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8752 transitions. Word has length 614 [2022-11-16 11:46:24,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:24,659 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8752 transitions. [2022-11-16 11:46:24,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:24,659 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8752 transitions. [2022-11-16 11:46:24,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:46:24,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:24,664 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:24,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 11:46:24,664 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:24,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:24,665 INFO L85 PathProgramCache]: Analyzing trace with hash -187452568, now seen corresponding path program 1 times [2022-11-16 11:46:24,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:24,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227944318] [2022-11-16 11:46:24,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:24,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:27,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:27,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227944318] [2022-11-16 11:46:27,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227944318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:27,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:27,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:46:27,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791331460] [2022-11-16 11:46:27,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:27,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:46:27,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:27,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:46:27,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:46:27,766 INFO L87 Difference]: Start difference. First operand 5302 states and 8752 transitions. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:28,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:28,983 INFO L93 Difference]: Finished difference Result 10602 states and 17502 transitions. [2022-11-16 11:46:28,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:28,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 614 [2022-11-16 11:46:28,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:28,989 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:46:28,989 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:46:28,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:28,992 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 4118 mSDsluCounter, 4285 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:28,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 8568 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:46:28,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:46:29,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:46:29,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6496212121212122) internal successors, (8710), 5280 states have internal predecessors, (8710), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8750 transitions. [2022-11-16 11:46:29,075 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8750 transitions. Word has length 614 [2022-11-16 11:46:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:29,075 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8750 transitions. [2022-11-16 11:46:29,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:29,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8750 transitions. [2022-11-16 11:46:29,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:46:29,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:29,080 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:29,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 11:46:29,080 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:29,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:29,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2037214614, now seen corresponding path program 1 times [2022-11-16 11:46:29,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:29,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92435142] [2022-11-16 11:46:29,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:29,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:33,038 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:33,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:33,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92435142] [2022-11-16 11:46:33,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92435142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:33,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:33,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:46:33,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156447251] [2022-11-16 11:46:33,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:33,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:46:33,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:33,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:46:33,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:46:33,043 INFO L87 Difference]: Start difference. First operand 5302 states and 8750 transitions. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:34,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:34,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:34,829 INFO L93 Difference]: Finished difference Result 11260 states and 18545 transitions. [2022-11-16 11:46:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:34,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 614 [2022-11-16 11:46:34,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:34,836 INFO L225 Difference]: With dead ends: 11260 [2022-11-16 11:46:34,836 INFO L226 Difference]: Without dead ends: 5960 [2022-11-16 11:46:34,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:34,840 INFO L413 NwaCegarLoop]: 4820 mSDtfsCounter, 8457 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8457 SdHoareTripleChecker+Valid, 5386 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:34,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8457 Valid, 5386 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:46:34,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2022-11-16 11:46:34,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 5302. [2022-11-16 11:46:34,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6492424242424242) internal successors, (8708), 5280 states have internal predecessors, (8708), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:34,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8748 transitions. [2022-11-16 11:46:34,924 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8748 transitions. Word has length 614 [2022-11-16 11:46:34,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:34,925 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8748 transitions. [2022-11-16 11:46:34,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8748 transitions. [2022-11-16 11:46:34,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:46:34,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:34,931 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:34,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 11:46:34,931 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:34,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:34,931 INFO L85 PathProgramCache]: Analyzing trace with hash 199146412, now seen corresponding path program 1 times [2022-11-16 11:46:34,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:34,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534778285] [2022-11-16 11:46:34,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:34,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:38,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:38,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534778285] [2022-11-16 11:46:38,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534778285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:38,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:38,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:46:38,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216778022] [2022-11-16 11:46:38,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:38,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:46:38,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:38,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:46:38,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:46:38,321 INFO L87 Difference]: Start difference. First operand 5302 states and 8748 transitions. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:40,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:40,110 INFO L93 Difference]: Finished difference Result 15894 states and 26229 transitions. [2022-11-16 11:46:40,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:40,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 614 [2022-11-16 11:46:40,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:40,121 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:46:40,121 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:46:40,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:40,126 INFO L413 NwaCegarLoop]: 4346 mSDtfsCounter, 12804 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12804 SdHoareTripleChecker+Valid, 8535 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:40,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12804 Valid, 8535 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:46:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:46:40,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:46:40,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6488636363636364) internal successors, (8706), 5280 states have internal predecessors, (8706), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8746 transitions. [2022-11-16 11:46:40,259 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8746 transitions. Word has length 614 [2022-11-16 11:46:40,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:40,259 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8746 transitions. [2022-11-16 11:46:40,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8746 transitions. [2022-11-16 11:46:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2022-11-16 11:46:40,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:40,265 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:40,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 11:46:40,266 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1007052572, now seen corresponding path program 1 times [2022-11-16 11:46:40,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:40,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326552604] [2022-11-16 11:46:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:40,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:42,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:42,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326552604] [2022-11-16 11:46:42,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326552604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:42,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:42,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:46:42,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602469226] [2022-11-16 11:46:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:42,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:46:42,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:42,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:46:42,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:42,404 INFO L87 Difference]: Start difference. First operand 5302 states and 8746 transitions. Second operand has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:44,193 INFO L93 Difference]: Finished difference Result 15894 states and 26223 transitions. [2022-11-16 11:46:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:44,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 615 [2022-11-16 11:46:44,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:44,205 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:46:44,205 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:46:44,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:46:44,212 INFO L413 NwaCegarLoop]: 4347 mSDtfsCounter, 21326 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21336 SdHoareTripleChecker+Valid, 8536 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:44,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21336 Valid, 8536 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:46:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:46:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:46:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6484848484848484) internal successors, (8704), 5280 states have internal predecessors, (8704), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8744 transitions. [2022-11-16 11:46:44,323 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8744 transitions. Word has length 615 [2022-11-16 11:46:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:44,323 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8744 transitions. [2022-11-16 11:46:44,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.6) internal successors, (568), 5 states have internal predecessors, (568), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8744 transitions. [2022-11-16 11:46:44,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2022-11-16 11:46:44,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:44,329 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:44,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-16 11:46:44,329 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:44,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:44,330 INFO L85 PathProgramCache]: Analyzing trace with hash -411677806, now seen corresponding path program 1 times [2022-11-16 11:46:44,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:44,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133868996] [2022-11-16 11:46:44,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:44,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:46,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:46,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133868996] [2022-11-16 11:46:46,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133868996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:46,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:46,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:46:46,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972866433] [2022-11-16 11:46:46,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:46,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:46:46,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:46,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:46:46,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:46,211 INFO L87 Difference]: Start difference. First operand 5302 states and 8744 transitions. Second operand has 5 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:48,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:48,005 INFO L93 Difference]: Finished difference Result 15894 states and 26217 transitions. [2022-11-16 11:46:48,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:48,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 616 [2022-11-16 11:46:48,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:48,014 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:46:48,014 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:46:48,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:46:48,019 INFO L413 NwaCegarLoop]: 8328 mSDtfsCounter, 8695 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8705 SdHoareTripleChecker+Valid, 12541 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:48,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8705 Valid, 12541 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:46:48,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:46:48,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:46:48,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6481060606060607) internal successors, (8702), 5280 states have internal predecessors, (8702), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:48,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8742 transitions. [2022-11-16 11:46:48,157 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8742 transitions. Word has length 616 [2022-11-16 11:46:48,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:48,157 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8742 transitions. [2022-11-16 11:46:48,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:48,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8742 transitions. [2022-11-16 11:46:48,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2022-11-16 11:46:48,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:48,162 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:48,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 11:46:48,162 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:48,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:48,163 INFO L85 PathProgramCache]: Analyzing trace with hash -948499772, now seen corresponding path program 1 times [2022-11-16 11:46:48,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:48,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759706383] [2022-11-16 11:46:48,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:48,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:49,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:49,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759706383] [2022-11-16 11:46:49,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759706383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:49,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:49,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:46:49,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666309002] [2022-11-16 11:46:49,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:49,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:46:49,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:49,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:46:49,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:49,834 INFO L87 Difference]: Start difference. First operand 5302 states and 8742 transitions. Second operand has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:51,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:51,455 INFO L93 Difference]: Finished difference Result 15894 states and 26211 transitions. [2022-11-16 11:46:51,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:51,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 617 [2022-11-16 11:46:51,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:51,464 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:46:51,464 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:46:51,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:46:51,470 INFO L413 NwaCegarLoop]: 4349 mSDtfsCounter, 21294 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21304 SdHoareTripleChecker+Valid, 8538 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:51,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21304 Valid, 8538 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:46:51,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:46:51,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:46:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6477272727272727) internal successors, (8700), 5280 states have internal predecessors, (8700), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:51,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8740 transitions. [2022-11-16 11:46:51,631 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8740 transitions. Word has length 617 [2022-11-16 11:46:51,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:51,631 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8740 transitions. [2022-11-16 11:46:51,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.0) internal successors, (570), 5 states have internal predecessors, (570), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8740 transitions. [2022-11-16 11:46:51,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2022-11-16 11:46:51,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:51,637 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:51,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 11:46:51,637 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:51,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:51,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1650293450, now seen corresponding path program 1 times [2022-11-16 11:46:51,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:51,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978551397] [2022-11-16 11:46:51,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:51,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:53,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:53,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978551397] [2022-11-16 11:46:53,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978551397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:53,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:53,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:46:53,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899857903] [2022-11-16 11:46:53,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:53,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:46:53,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:46:53,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:53,485 INFO L87 Difference]: Start difference. First operand 5302 states and 8740 transitions. Second operand has 5 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:55,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:46:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:46:56,351 INFO L93 Difference]: Finished difference Result 15894 states and 26205 transitions. [2022-11-16 11:46:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:46:56,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 618 [2022-11-16 11:46:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:46:56,361 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:46:56,361 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:46:56,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:46:56,366 INFO L413 NwaCegarLoop]: 4350 mSDtfsCounter, 21278 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21288 SdHoareTripleChecker+Valid, 8539 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:46:56,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21288 Valid, 8539 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-16 11:46:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:46:56,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:46:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.647348484848485) internal successors, (8698), 5280 states have internal predecessors, (8698), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:46:56,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8738 transitions. [2022-11-16 11:46:56,482 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8738 transitions. Word has length 618 [2022-11-16 11:46:56,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:46:56,482 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8738 transitions. [2022-11-16 11:46:56,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:46:56,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8738 transitions. [2022-11-16 11:46:56,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2022-11-16 11:46:56,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:46:56,489 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:46:56,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-16 11:46:56,489 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:46:56,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:46:56,490 INFO L85 PathProgramCache]: Analyzing trace with hash 145317738, now seen corresponding path program 1 times [2022-11-16 11:46:56,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:46:56,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802697639] [2022-11-16 11:46:56,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:46:56,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:46:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:46:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:46:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:46:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:46:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:46:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:46:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:46:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:46:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:46:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:46:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:46:58,395 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:46:58,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:46:58,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802697639] [2022-11-16 11:46:58,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802697639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:46:58,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:46:58,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:46:58,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916037985] [2022-11-16 11:46:58,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:46:58,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:46:58,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:46:58,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:46:58,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:46:58,397 INFO L87 Difference]: Start difference. First operand 5302 states and 8738 transitions. Second operand has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:00,047 INFO L93 Difference]: Finished difference Result 15894 states and 26199 transitions. [2022-11-16 11:47:00,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:00,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 619 [2022-11-16 11:47:00,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:00,057 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:00,057 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:00,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:00,062 INFO L413 NwaCegarLoop]: 4351 mSDtfsCounter, 12851 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12861 SdHoareTripleChecker+Valid, 8564 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:00,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12861 Valid, 8564 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:47:00,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:00,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:00,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.646969696969697) internal successors, (8696), 5280 states have internal predecessors, (8696), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:00,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8736 transitions. [2022-11-16 11:47:00,181 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8736 transitions. Word has length 619 [2022-11-16 11:47:00,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:00,182 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8736 transitions. [2022-11-16 11:47:00,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:00,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8736 transitions. [2022-11-16 11:47:00,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2022-11-16 11:47:00,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:00,190 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:00,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-16 11:47:00,190 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:00,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:00,191 INFO L85 PathProgramCache]: Analyzing trace with hash -470076516, now seen corresponding path program 1 times [2022-11-16 11:47:00,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:00,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614334265] [2022-11-16 11:47:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:00,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:02,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:02,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614334265] [2022-11-16 11:47:02,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614334265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:02,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:02,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:02,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20847478] [2022-11-16 11:47:02,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:02,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:02,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:02,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:02,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:02,393 INFO L87 Difference]: Start difference. First operand 5302 states and 8736 transitions. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:03,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:04,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:04,269 INFO L93 Difference]: Finished difference Result 15894 states and 26193 transitions. [2022-11-16 11:47:04,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:04,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 620 [2022-11-16 11:47:04,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:04,278 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:04,278 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:04,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:04,283 INFO L413 NwaCegarLoop]: 8328 mSDtfsCounter, 8687 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8697 SdHoareTripleChecker+Valid, 12541 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:04,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8697 Valid, 12541 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 11:47:04,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:04,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:04,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.646590909090909) internal successors, (8694), 5280 states have internal predecessors, (8694), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:04,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8734 transitions. [2022-11-16 11:47:04,387 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8734 transitions. Word has length 620 [2022-11-16 11:47:04,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:04,387 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8734 transitions. [2022-11-16 11:47:04,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:04,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8734 transitions. [2022-11-16 11:47:04,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2022-11-16 11:47:04,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:04,393 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:04,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-16 11:47:04,393 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:04,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:04,393 INFO L85 PathProgramCache]: Analyzing trace with hash -410033518, now seen corresponding path program 1 times [2022-11-16 11:47:04,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:04,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986969668] [2022-11-16 11:47:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:04,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:06,507 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:06,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:06,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986969668] [2022-11-16 11:47:06,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986969668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:06,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:06,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:06,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770498489] [2022-11-16 11:47:06,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:06,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:06,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:06,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:06,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:06,509 INFO L87 Difference]: Start difference. First operand 5302 states and 8734 transitions. Second operand has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:08,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:08,332 INFO L93 Difference]: Finished difference Result 15894 states and 26187 transitions. [2022-11-16 11:47:08,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:08,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 621 [2022-11-16 11:47:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:08,341 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:08,341 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:08,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:08,346 INFO L413 NwaCegarLoop]: 4353 mSDtfsCounter, 21230 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21240 SdHoareTripleChecker+Valid, 8542 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:08,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21240 Valid, 8542 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:47:08,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:08,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:08,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6462121212121212) internal successors, (8692), 5280 states have internal predecessors, (8692), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:08,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8732 transitions. [2022-11-16 11:47:08,494 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8732 transitions. Word has length 621 [2022-11-16 11:47:08,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:08,495 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8732 transitions. [2022-11-16 11:47:08,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:08,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8732 transitions. [2022-11-16 11:47:08,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-11-16 11:47:08,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:08,500 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:08,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-16 11:47:08,500 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:08,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:08,501 INFO L85 PathProgramCache]: Analyzing trace with hash -910095936, now seen corresponding path program 1 times [2022-11-16 11:47:08,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:08,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749858159] [2022-11-16 11:47:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:08,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:10,423 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:10,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:10,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749858159] [2022-11-16 11:47:10,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749858159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:10,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:10,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:10,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514431072] [2022-11-16 11:47:10,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:10,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:10,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:10,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:10,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:10,425 INFO L87 Difference]: Start difference. First operand 5302 states and 8732 transitions. Second operand has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:11,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:12,399 INFO L93 Difference]: Finished difference Result 15894 states and 26181 transitions. [2022-11-16 11:47:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:12,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 622 [2022-11-16 11:47:12,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:12,409 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:12,409 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:12,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:12,414 INFO L413 NwaCegarLoop]: 4691 mSDtfsCounter, 20381 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20391 SdHoareTripleChecker+Valid, 8880 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:12,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20391 Valid, 8880 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:47:12,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:12,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:12,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6458333333333333) internal successors, (8690), 5280 states have internal predecessors, (8690), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8730 transitions. [2022-11-16 11:47:12,529 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8730 transitions. Word has length 622 [2022-11-16 11:47:12,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:12,530 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8730 transitions. [2022-11-16 11:47:12,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.0) internal successors, (575), 5 states have internal predecessors, (575), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:12,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8730 transitions. [2022-11-16 11:47:12,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2022-11-16 11:47:12,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:12,537 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:12,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-16 11:47:12,538 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:12,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1275226126, now seen corresponding path program 1 times [2022-11-16 11:47:12,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:12,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413103482] [2022-11-16 11:47:12,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:12,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:14,587 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:14,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:14,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413103482] [2022-11-16 11:47:14,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413103482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:14,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:14,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:14,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071005179] [2022-11-16 11:47:14,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:14,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:14,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:14,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:14,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:14,590 INFO L87 Difference]: Start difference. First operand 5302 states and 8730 transitions. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:16,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:17,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:17,294 INFO L93 Difference]: Finished difference Result 15894 states and 26175 transitions. [2022-11-16 11:47:17,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:17,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 623 [2022-11-16 11:47:17,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:17,304 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:17,304 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:17,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:17,309 INFO L413 NwaCegarLoop]: 4692 mSDtfsCounter, 12481 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12491 SdHoareTripleChecker+Valid, 8905 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:17,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12491 Valid, 8905 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 11:47:17,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:17,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:17,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6454545454545455) internal successors, (8688), 5280 states have internal predecessors, (8688), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:17,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8728 transitions. [2022-11-16 11:47:17,423 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8728 transitions. Word has length 623 [2022-11-16 11:47:17,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:17,423 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8728 transitions. [2022-11-16 11:47:17,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:17,424 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8728 transitions. [2022-11-16 11:47:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-11-16 11:47:17,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:17,429 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:17,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-16 11:47:17,429 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:17,430 INFO L85 PathProgramCache]: Analyzing trace with hash -190176806, now seen corresponding path program 1 times [2022-11-16 11:47:17,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:17,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136878277] [2022-11-16 11:47:17,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:17,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:19,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:19,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136878277] [2022-11-16 11:47:19,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136878277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:19,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:19,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:19,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89327881] [2022-11-16 11:47:19,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:19,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:19,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:19,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:19,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:19,508 INFO L87 Difference]: Start difference. First operand 5302 states and 8728 transitions. Second operand has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:20,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:20,895 INFO L93 Difference]: Finished difference Result 15894 states and 26169 transitions. [2022-11-16 11:47:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:20,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 624 [2022-11-16 11:47:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:20,905 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:20,905 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:20,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:20,910 INFO L413 NwaCegarLoop]: 4693 mSDtfsCounter, 20349 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20359 SdHoareTripleChecker+Valid, 8882 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:20,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20359 Valid, 8882 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:47:20,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:21,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6450757575757575) internal successors, (8686), 5280 states have internal predecessors, (8686), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8726 transitions. [2022-11-16 11:47:21,044 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8726 transitions. Word has length 624 [2022-11-16 11:47:21,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:21,044 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8726 transitions. [2022-11-16 11:47:21,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.4) internal successors, (577), 5 states have internal predecessors, (577), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:21,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8726 transitions. [2022-11-16 11:47:21,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-11-16 11:47:21,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:21,049 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:21,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-16 11:47:21,049 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:21,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:21,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1551188376, now seen corresponding path program 1 times [2022-11-16 11:47:21,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:21,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180805897] [2022-11-16 11:47:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:21,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:22,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:22,867 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:22,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:22,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180805897] [2022-11-16 11:47:22,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180805897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:22,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:22,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:22,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491393206] [2022-11-16 11:47:22,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:22,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:22,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:22,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:22,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:22,869 INFO L87 Difference]: Start difference. First operand 5302 states and 8726 transitions. Second operand has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:24,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:24,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:24,968 INFO L93 Difference]: Finished difference Result 15894 states and 26163 transitions. [2022-11-16 11:47:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:24,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 625 [2022-11-16 11:47:24,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:24,978 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:24,978 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:24,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:24,983 INFO L413 NwaCegarLoop]: 8328 mSDtfsCounter, 8677 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8687 SdHoareTripleChecker+Valid, 12541 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:24,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8687 Valid, 12541 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 11:47:24,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:25,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6446969696969698) internal successors, (8684), 5280 states have internal predecessors, (8684), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:25,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8724 transitions. [2022-11-16 11:47:25,105 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8724 transitions. Word has length 625 [2022-11-16 11:47:25,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:25,106 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8724 transitions. [2022-11-16 11:47:25,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8724 transitions. [2022-11-16 11:47:25,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2022-11-16 11:47:25,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:25,111 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:25,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-16 11:47:25,112 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:25,112 INFO L85 PathProgramCache]: Analyzing trace with hash -715017294, now seen corresponding path program 1 times [2022-11-16 11:47:25,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:25,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768230532] [2022-11-16 11:47:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:25,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:27,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:27,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768230532] [2022-11-16 11:47:27,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768230532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:27,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:27,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:27,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651762014] [2022-11-16 11:47:27,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:27,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:27,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:27,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:27,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:27,279 INFO L87 Difference]: Start difference. First operand 5302 states and 8724 transitions. Second operand has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:28,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:28,506 INFO L93 Difference]: Finished difference Result 15894 states and 26157 transitions. [2022-11-16 11:47:28,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:28,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 626 [2022-11-16 11:47:28,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:28,516 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:28,516 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:28,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:28,521 INFO L413 NwaCegarLoop]: 4695 mSDtfsCounter, 20317 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20327 SdHoareTripleChecker+Valid, 8884 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:28,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20327 Valid, 8884 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:47:28,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:28,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6443181818181818) internal successors, (8682), 5280 states have internal predecessors, (8682), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:28,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8722 transitions. [2022-11-16 11:47:28,627 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8722 transitions. Word has length 626 [2022-11-16 11:47:28,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:28,628 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8722 transitions. [2022-11-16 11:47:28,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.8) internal successors, (579), 5 states have internal predecessors, (579), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:28,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8722 transitions. [2022-11-16 11:47:28,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2022-11-16 11:47:28,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:28,633 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:28,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-16 11:47:28,633 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:28,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:28,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1490128068, now seen corresponding path program 1 times [2022-11-16 11:47:28,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:28,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460323560] [2022-11-16 11:47:28,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:28,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:31,050 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:31,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:31,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460323560] [2022-11-16 11:47:31,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460323560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:31,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:31,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:31,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613990414] [2022-11-16 11:47:31,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:31,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:31,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:31,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:31,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:31,053 INFO L87 Difference]: Start difference. First operand 5302 states and 8722 transitions. Second operand has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:32,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:32,589 INFO L93 Difference]: Finished difference Result 15894 states and 26151 transitions. [2022-11-16 11:47:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:32,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 627 [2022-11-16 11:47:32,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:32,599 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:32,599 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:32,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:32,604 INFO L413 NwaCegarLoop]: 4696 mSDtfsCounter, 20301 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20311 SdHoareTripleChecker+Valid, 8885 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:32,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20311 Valid, 8885 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:47:32,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:32,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:32,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.643939393939394) internal successors, (8680), 5280 states have internal predecessors, (8680), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:32,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8720 transitions. [2022-11-16 11:47:32,716 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8720 transitions. Word has length 627 [2022-11-16 11:47:32,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:32,717 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8720 transitions. [2022-11-16 11:47:32,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8720 transitions. [2022-11-16 11:47:32,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2022-11-16 11:47:32,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:32,721 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:32,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-16 11:47:32,722 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:32,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:32,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1663885748, now seen corresponding path program 1 times [2022-11-16 11:47:32,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:32,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471180641] [2022-11-16 11:47:32,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:32,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:34,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:34,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471180641] [2022-11-16 11:47:34,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471180641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:34,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:34,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:34,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085892626] [2022-11-16 11:47:34,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:34,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:34,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:34,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:34,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:34,964 INFO L87 Difference]: Start difference. First operand 5302 states and 8720 transitions. Second operand has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:36,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:36,591 INFO L93 Difference]: Finished difference Result 15894 states and 26145 transitions. [2022-11-16 11:47:36,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:36,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 628 [2022-11-16 11:47:36,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:36,600 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:36,601 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:36,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:36,606 INFO L413 NwaCegarLoop]: 4697 mSDtfsCounter, 12446 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12456 SdHoareTripleChecker+Valid, 8910 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:36,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12456 Valid, 8910 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:47:36,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:36,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:36,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.643560606060606) internal successors, (8678), 5280 states have internal predecessors, (8678), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:36,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8718 transitions. [2022-11-16 11:47:36,726 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8718 transitions. Word has length 628 [2022-11-16 11:47:36,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:36,727 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8718 transitions. [2022-11-16 11:47:36,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:36,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8718 transitions. [2022-11-16 11:47:36,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2022-11-16 11:47:36,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:36,732 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:36,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-16 11:47:36,732 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:36,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:36,733 INFO L85 PathProgramCache]: Analyzing trace with hash 4478110, now seen corresponding path program 1 times [2022-11-16 11:47:36,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:36,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078906752] [2022-11-16 11:47:36,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:36,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:38,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:38,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078906752] [2022-11-16 11:47:38,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078906752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:38,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:38,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:38,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210129999] [2022-11-16 11:47:38,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:38,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:38,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:38,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:38,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:38,766 INFO L87 Difference]: Start difference. First operand 5302 states and 8718 transitions. Second operand has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:40,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:40,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:40,928 INFO L93 Difference]: Finished difference Result 15894 states and 26139 transitions. [2022-11-16 11:47:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:40,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 629 [2022-11-16 11:47:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:40,938 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:40,938 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:40,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:40,942 INFO L413 NwaCegarLoop]: 8328 mSDtfsCounter, 8669 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8679 SdHoareTripleChecker+Valid, 12541 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:40,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8679 Valid, 12541 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 11:47:40,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:41,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:41,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.643181818181818) internal successors, (8676), 5280 states have internal predecessors, (8676), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:41,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8716 transitions. [2022-11-16 11:47:41,051 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8716 transitions. Word has length 629 [2022-11-16 11:47:41,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:41,052 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8716 transitions. [2022-11-16 11:47:41,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:41,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8716 transitions. [2022-11-16 11:47:41,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2022-11-16 11:47:41,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:41,057 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:41,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-16 11:47:41,057 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1749778596, now seen corresponding path program 1 times [2022-11-16 11:47:41,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:41,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827355483] [2022-11-16 11:47:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:41,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,227 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:43,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:43,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827355483] [2022-11-16 11:47:43,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827355483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:43,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:43,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:43,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147474842] [2022-11-16 11:47:43,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:43,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:43,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:43,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:43,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:43,230 INFO L87 Difference]: Start difference. First operand 5302 states and 8716 transitions. Second operand has 5 states, 5 states have (on average 116.6) internal successors, (583), 5 states have internal predecessors, (583), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:45,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:46,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:46,109 INFO L93 Difference]: Finished difference Result 15894 states and 26133 transitions. [2022-11-16 11:47:46,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:46,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 116.6) internal successors, (583), 5 states have internal predecessors, (583), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 630 [2022-11-16 11:47:46,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:46,118 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:46,118 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:46,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:46,123 INFO L413 NwaCegarLoop]: 8328 mSDtfsCounter, 8667 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8677 SdHoareTripleChecker+Valid, 12541 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:46,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8677 Valid, 12541 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 585 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-16 11:47:46,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:46,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6428030303030303) internal successors, (8674), 5280 states have internal predecessors, (8674), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:46,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8714 transitions. [2022-11-16 11:47:46,254 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8714 transitions. Word has length 630 [2022-11-16 11:47:46,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:46,255 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8714 transitions. [2022-11-16 11:47:46,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.6) internal successors, (583), 5 states have internal predecessors, (583), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:46,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8714 transitions. [2022-11-16 11:47:46,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-16 11:47:46,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:46,260 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:46,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-16 11:47:46,261 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:46,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:46,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1186256998, now seen corresponding path program 1 times [2022-11-16 11:47:46,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:46,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869145264] [2022-11-16 11:47:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:46,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:48,490 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:48,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:48,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869145264] [2022-11-16 11:47:48,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869145264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:48,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:48,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:48,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339244056] [2022-11-16 11:47:48,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:48,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:48,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:48,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:48,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:48,493 INFO L87 Difference]: Start difference. First operand 5302 states and 8714 transitions. Second operand has 5 states, 5 states have (on average 116.8) internal successors, (584), 5 states have internal predecessors, (584), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:50,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:50,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:50,848 INFO L93 Difference]: Finished difference Result 15894 states and 26127 transitions. [2022-11-16 11:47:50,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:50,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 116.8) internal successors, (584), 5 states have internal predecessors, (584), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 631 [2022-11-16 11:47:50,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:50,856 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:50,856 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:50,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:50,860 INFO L413 NwaCegarLoop]: 5040 mSDtfsCounter, 12080 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12090 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:50,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12090 Valid, 9253 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 11:47:50,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:50,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:50,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6424242424242423) internal successors, (8672), 5280 states have internal predecessors, (8672), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8712 transitions. [2022-11-16 11:47:50,962 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8712 transitions. Word has length 631 [2022-11-16 11:47:50,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:50,963 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8712 transitions. [2022-11-16 11:47:50,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.8) internal successors, (584), 5 states have internal predecessors, (584), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8712 transitions. [2022-11-16 11:47:50,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-11-16 11:47:50,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:50,968 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:50,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-16 11:47:50,968 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:50,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:50,969 INFO L85 PathProgramCache]: Analyzing trace with hash 2077214536, now seen corresponding path program 1 times [2022-11-16 11:47:50,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:50,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642396880] [2022-11-16 11:47:50,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:50,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:53,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:53,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642396880] [2022-11-16 11:47:53,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642396880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:53,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:53,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:53,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050273433] [2022-11-16 11:47:53,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:53,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:53,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:53,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:53,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:53,155 INFO L87 Difference]: Start difference. First operand 5302 states and 8712 transitions. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:54,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:54,939 INFO L93 Difference]: Finished difference Result 15894 states and 26121 transitions. [2022-11-16 11:47:54,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:54,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 632 [2022-11-16 11:47:54,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:54,946 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:54,947 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:54,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:54,949 INFO L413 NwaCegarLoop]: 5041 mSDtfsCounter, 19382 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19392 SdHoareTripleChecker+Valid, 9230 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:54,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19392 Valid, 9230 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 11:47:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:55,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6420454545454546) internal successors, (8670), 5280 states have internal predecessors, (8670), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:55,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8710 transitions. [2022-11-16 11:47:55,075 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8710 transitions. Word has length 632 [2022-11-16 11:47:55,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:55,075 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8710 transitions. [2022-11-16 11:47:55,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:55,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8710 transitions. [2022-11-16 11:47:55,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2022-11-16 11:47:55,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:55,082 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:55,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-16 11:47:55,082 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:55,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:55,083 INFO L85 PathProgramCache]: Analyzing trace with hash 898559884, now seen corresponding path program 1 times [2022-11-16 11:47:55,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:55,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531211346] [2022-11-16 11:47:55,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:55,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:47:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:47:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:47:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:47:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:47:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:47:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:47:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:47:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:47:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:47:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,953 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:47:56,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:56,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531211346] [2022-11-16 11:47:56,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531211346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:56,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:56,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:47:56,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267851367] [2022-11-16 11:47:56,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:56,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:47:56,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:56,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:47:56,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:47:56,955 INFO L87 Difference]: Start difference. First operand 5302 states and 8710 transitions. Second operand has 5 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:58,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:47:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:47:59,032 INFO L93 Difference]: Finished difference Result 15894 states and 26115 transitions. [2022-11-16 11:47:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:47:59,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 633 [2022-11-16 11:47:59,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:47:59,041 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:47:59,041 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:47:59,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:59,045 INFO L413 NwaCegarLoop]: 5042 mSDtfsCounter, 12066 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12076 SdHoareTripleChecker+Valid, 9255 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:47:59,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12076 Valid, 9255 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 11:47:59,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:47:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:47:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6416666666666666) internal successors, (8668), 5280 states have internal predecessors, (8668), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:47:59,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8708 transitions. [2022-11-16 11:47:59,154 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8708 transitions. Word has length 633 [2022-11-16 11:47:59,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:47:59,155 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8708 transitions. [2022-11-16 11:47:59,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.2) internal successors, (586), 5 states have internal predecessors, (586), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:47:59,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8708 transitions. [2022-11-16 11:47:59,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-11-16 11:47:59,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:47:59,160 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:59,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-16 11:47:59,160 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:47:59,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:59,161 INFO L85 PathProgramCache]: Analyzing trace with hash -693203922, now seen corresponding path program 1 times [2022-11-16 11:47:59,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:59,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800315381] [2022-11-16 11:47:59,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:59,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:01,086 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:01,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:01,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800315381] [2022-11-16 11:48:01,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800315381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:01,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:01,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:48:01,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297620255] [2022-11-16 11:48:01,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:01,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:48:01,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:01,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:48:01,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:01,089 INFO L87 Difference]: Start difference. First operand 5302 states and 8708 transitions. Second operand has 5 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:02,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:02,586 INFO L93 Difference]: Finished difference Result 15894 states and 26109 transitions. [2022-11-16 11:48:02,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:02,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 634 [2022-11-16 11:48:02,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:02,597 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:48:02,597 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:48:02,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:48:02,601 INFO L413 NwaCegarLoop]: 8328 mSDtfsCounter, 12550 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12560 SdHoareTripleChecker+Valid, 12517 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:02,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12560 Valid, 12517 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:48:02,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:48:02,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:48:02,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6412878787878789) internal successors, (8666), 5280 states have internal predecessors, (8666), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:02,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8706 transitions. [2022-11-16 11:48:02,712 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8706 transitions. Word has length 634 [2022-11-16 11:48:02,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:02,712 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8706 transitions. [2022-11-16 11:48:02,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:02,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8706 transitions. [2022-11-16 11:48:02,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2022-11-16 11:48:02,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:02,717 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:02,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-16 11:48:02,717 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:02,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:02,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2027942220, now seen corresponding path program 1 times [2022-11-16 11:48:02,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:02,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828454769] [2022-11-16 11:48:02,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:02,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,079 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:05,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:05,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828454769] [2022-11-16 11:48:05,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828454769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:05,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:05,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:48:05,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493436648] [2022-11-16 11:48:05,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:05,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:48:05,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:05,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:48:05,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:05,082 INFO L87 Difference]: Start difference. First operand 5302 states and 8706 transitions. Second operand has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:06,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:06,548 INFO L93 Difference]: Finished difference Result 15894 states and 26103 transitions. [2022-11-16 11:48:06,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:06,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 635 [2022-11-16 11:48:06,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:06,558 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:48:06,558 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:48:06,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:48:06,563 INFO L413 NwaCegarLoop]: 5044 mSDtfsCounter, 12052 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12062 SdHoareTripleChecker+Valid, 9257 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:06,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12062 Valid, 9257 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:48:06,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:48:06,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:48:06,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6409090909090909) internal successors, (8664), 5280 states have internal predecessors, (8664), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:06,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8704 transitions. [2022-11-16 11:48:06,696 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8704 transitions. Word has length 635 [2022-11-16 11:48:06,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:06,697 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8704 transitions. [2022-11-16 11:48:06,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:06,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8704 transitions. [2022-11-16 11:48:06,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-11-16 11:48:06,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:06,702 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:06,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-16 11:48:06,703 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:06,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:06,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1366372526, now seen corresponding path program 1 times [2022-11-16 11:48:06,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:06,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136758074] [2022-11-16 11:48:06,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:06,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:09,032 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:09,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:09,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136758074] [2022-11-16 11:48:09,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136758074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:09,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:09,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:48:09,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185308939] [2022-11-16 11:48:09,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:09,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:48:09,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:09,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:48:09,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:09,035 INFO L87 Difference]: Start difference. First operand 5302 states and 8704 transitions. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:11,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:48:12,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:12,078 INFO L93 Difference]: Finished difference Result 15894 states and 26097 transitions. [2022-11-16 11:48:12,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:12,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 636 [2022-11-16 11:48:12,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:12,086 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:48:12,086 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:48:12,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:48:12,088 INFO L413 NwaCegarLoop]: 5045 mSDtfsCounter, 19318 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19328 SdHoareTripleChecker+Valid, 9234 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:12,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19328 Valid, 9234 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 11:48:12,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:48:12,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:48:12,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6405303030303031) internal successors, (8662), 5280 states have internal predecessors, (8662), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:12,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8702 transitions. [2022-11-16 11:48:12,210 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8702 transitions. Word has length 636 [2022-11-16 11:48:12,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:12,211 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8702 transitions. [2022-11-16 11:48:12,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:12,211 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8702 transitions. [2022-11-16 11:48:12,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2022-11-16 11:48:12,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:12,217 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:12,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-16 11:48:12,217 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:12,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:12,217 INFO L85 PathProgramCache]: Analyzing trace with hash -747068582, now seen corresponding path program 1 times [2022-11-16 11:48:12,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:12,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472271304] [2022-11-16 11:48:12,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:12,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:14,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:14,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472271304] [2022-11-16 11:48:14,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472271304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:14,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:14,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:48:14,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894330055] [2022-11-16 11:48:14,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:14,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:48:14,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:14,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:48:14,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:14,535 INFO L87 Difference]: Start difference. First operand 5302 states and 8702 transitions. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:15,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:15,802 INFO L93 Difference]: Finished difference Result 15894 states and 26091 transitions. [2022-11-16 11:48:15,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:15,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 637 [2022-11-16 11:48:15,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:15,813 INFO L225 Difference]: With dead ends: 15894 [2022-11-16 11:48:15,814 INFO L226 Difference]: Without dead ends: 10594 [2022-11-16 11:48:15,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:48:15,819 INFO L413 NwaCegarLoop]: 5046 mSDtfsCounter, 19302 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19312 SdHoareTripleChecker+Valid, 9235 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:15,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19312 Valid, 9235 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 11:48:15,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-11-16 11:48:15,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5302. [2022-11-16 11:48:15,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6401515151515151) internal successors, (8660), 5280 states have internal predecessors, (8660), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:15,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8700 transitions. [2022-11-16 11:48:15,976 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8700 transitions. Word has length 637 [2022-11-16 11:48:15,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:15,976 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8700 transitions. [2022-11-16 11:48:15,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:15,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8700 transitions. [2022-11-16 11:48:15,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2022-11-16 11:48:15,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:15,981 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:15,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-16 11:48:15,981 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:15,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:15,982 INFO L85 PathProgramCache]: Analyzing trace with hash -501165384, now seen corresponding path program 1 times [2022-11-16 11:48:15,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:15,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468886348] [2022-11-16 11:48:15,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:15,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:19,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:19,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468886348] [2022-11-16 11:48:19,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468886348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:19,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:19,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:48:19,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045262086] [2022-11-16 11:48:19,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:19,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:19,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:19,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:19,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:19,383 INFO L87 Difference]: Start difference. First operand 5302 states and 8700 transitions. Second operand has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:20,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:20,684 INFO L93 Difference]: Finished difference Result 10602 states and 17398 transitions. [2022-11-16 11:48:20,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:20,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 638 [2022-11-16 11:48:20,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:20,690 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:48:20,690 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:48:20,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:20,694 INFO L413 NwaCegarLoop]: 4167 mSDtfsCounter, 4054 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4054 SdHoareTripleChecker+Valid, 8336 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:20,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4054 Valid, 8336 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:48:20,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:48:20,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:48:20,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6397727272727274) internal successors, (8658), 5280 states have internal predecessors, (8658), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:20,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8698 transitions. [2022-11-16 11:48:20,793 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8698 transitions. Word has length 638 [2022-11-16 11:48:20,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:20,793 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8698 transitions. [2022-11-16 11:48:20,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:20,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8698 transitions. [2022-11-16 11:48:20,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2022-11-16 11:48:20,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:20,800 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:20,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-16 11:48:20,800 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:20,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:20,801 INFO L85 PathProgramCache]: Analyzing trace with hash -613073606, now seen corresponding path program 1 times [2022-11-16 11:48:20,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:20,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513032882] [2022-11-16 11:48:20,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:20,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:24,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:24,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513032882] [2022-11-16 11:48:24,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513032882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:24,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:24,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:48:24,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899300859] [2022-11-16 11:48:24,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:24,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:24,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:24,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:24,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:24,040 INFO L87 Difference]: Start difference. First operand 5302 states and 8698 transitions. Second operand has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:25,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:48:25,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:25,974 INFO L93 Difference]: Finished difference Result 10602 states and 17394 transitions. [2022-11-16 11:48:25,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:25,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 638 [2022-11-16 11:48:25,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:25,981 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:48:25,981 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:48:25,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:25,986 INFO L413 NwaCegarLoop]: 4167 mSDtfsCounter, 3880 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3880 SdHoareTripleChecker+Valid, 8336 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:25,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3880 Valid, 8336 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 11:48:25,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:48:26,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:48:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6393939393939394) internal successors, (8656), 5280 states have internal predecessors, (8656), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8696 transitions. [2022-11-16 11:48:26,120 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8696 transitions. Word has length 638 [2022-11-16 11:48:26,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:26,120 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8696 transitions. [2022-11-16 11:48:26,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8696 transitions. [2022-11-16 11:48:26,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2022-11-16 11:48:26,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:26,126 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:26,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-16 11:48:26,126 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:26,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:26,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1546010488, now seen corresponding path program 1 times [2022-11-16 11:48:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:26,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360636241] [2022-11-16 11:48:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:29,575 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:29,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:29,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360636241] [2022-11-16 11:48:29,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360636241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:29,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:29,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:48:29,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98989910] [2022-11-16 11:48:29,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:29,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:29,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:29,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:29,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:29,578 INFO L87 Difference]: Start difference. First operand 5302 states and 8696 transitions. Second operand has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:31,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:31,026 INFO L93 Difference]: Finished difference Result 10602 states and 17390 transitions. [2022-11-16 11:48:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:31,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 638 [2022-11-16 11:48:31,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:31,031 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:48:31,031 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:48:31,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:31,035 INFO L413 NwaCegarLoop]: 4167 mSDtfsCounter, 4228 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4228 SdHoareTripleChecker+Valid, 8336 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:31,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4228 Valid, 8336 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 11:48:31,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:48:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:48:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6390151515151514) internal successors, (8654), 5280 states have internal predecessors, (8654), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:31,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8694 transitions. [2022-11-16 11:48:31,141 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8694 transitions. Word has length 638 [2022-11-16 11:48:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:31,141 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8694 transitions. [2022-11-16 11:48:31,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8694 transitions. [2022-11-16 11:48:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2022-11-16 11:48:31,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:31,147 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:31,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-16 11:48:31,147 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:31,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:31,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1707819526, now seen corresponding path program 1 times [2022-11-16 11:48:31,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:31,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461178187] [2022-11-16 11:48:31,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:31,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:32,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,706 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:34,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:34,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461178187] [2022-11-16 11:48:34,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461178187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:34,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:34,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:48:34,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220536603] [2022-11-16 11:48:34,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:34,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:34,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:34,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:34,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:34,709 INFO L87 Difference]: Start difference. First operand 5302 states and 8694 transitions. Second operand has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:35,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:35,965 INFO L93 Difference]: Finished difference Result 10602 states and 17386 transitions. [2022-11-16 11:48:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:35,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 638 [2022-11-16 11:48:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:35,970 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:48:35,970 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:48:35,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:35,973 INFO L413 NwaCegarLoop]: 4167 mSDtfsCounter, 4054 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4054 SdHoareTripleChecker+Valid, 8336 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:35,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4054 Valid, 8336 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 11:48:35,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:48:36,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:48:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6386363636363637) internal successors, (8652), 5280 states have internal predecessors, (8652), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8692 transitions. [2022-11-16 11:48:36,100 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8692 transitions. Word has length 638 [2022-11-16 11:48:36,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:36,101 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8692 transitions. [2022-11-16 11:48:36,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:36,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8692 transitions. [2022-11-16 11:48:36,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2022-11-16 11:48:36,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:36,105 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:36,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-16 11:48:36,106 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:36,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1623927864, now seen corresponding path program 1 times [2022-11-16 11:48:36,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:36,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759584387] [2022-11-16 11:48:36,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:36,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:39,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:39,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759584387] [2022-11-16 11:48:39,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759584387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:39,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:39,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:48:39,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771609763] [2022-11-16 11:48:39,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:39,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:39,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:39,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:39,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:39,686 INFO L87 Difference]: Start difference. First operand 5302 states and 8692 transitions. Second operand has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:41,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:48:42,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:42,149 INFO L93 Difference]: Finished difference Result 10602 states and 17382 transitions. [2022-11-16 11:48:42,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:42,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 638 [2022-11-16 11:48:42,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:42,157 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:48:42,157 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:48:42,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:42,161 INFO L413 NwaCegarLoop]: 4167 mSDtfsCounter, 3880 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3880 SdHoareTripleChecker+Valid, 8336 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:42,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3880 Valid, 8336 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-16 11:48:42,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:48:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:48:42,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.6382575757575757) internal successors, (8650), 5280 states have internal predecessors, (8650), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:42,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8690 transitions. [2022-11-16 11:48:42,311 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8690 transitions. Word has length 638 [2022-11-16 11:48:42,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:42,311 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8690 transitions. [2022-11-16 11:48:42,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:42,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8690 transitions. [2022-11-16 11:48:42,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2022-11-16 11:48:42,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:42,316 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:42,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-16 11:48:42,316 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:42,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:42,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1467947322, now seen corresponding path program 1 times [2022-11-16 11:48:42,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:42,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333480358] [2022-11-16 11:48:42,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:42,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:48:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 11:48:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-16 11:48:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:48:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:48:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 11:48:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 11:48:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 11:48:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-16 11:48:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 11:48:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:48:45,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:45,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333480358] [2022-11-16 11:48:45,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333480358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:45,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:45,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:48:45,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524530268] [2022-11-16 11:48:45,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:45,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:48:45,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:45,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:48:45,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:48:45,499 INFO L87 Difference]: Start difference. First operand 5302 states and 8690 transitions. Second operand has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:46,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 11:48:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:48:47,044 INFO L93 Difference]: Finished difference Result 10602 states and 17378 transitions. [2022-11-16 11:48:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:48:47,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 638 [2022-11-16 11:48:47,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:48:47,050 INFO L225 Difference]: With dead ends: 10602 [2022-11-16 11:48:47,050 INFO L226 Difference]: Without dead ends: 5302 [2022-11-16 11:48:47,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:48:47,053 INFO L413 NwaCegarLoop]: 4167 mSDtfsCounter, 4228 mSDsluCounter, 4169 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4228 SdHoareTripleChecker+Valid, 8336 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:48:47,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4228 Valid, 8336 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 11:48:47,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-11-16 11:48:47,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5302. [2022-11-16 11:48:47,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5280 states have (on average 1.637878787878788) internal successors, (8648), 5280 states have internal predecessors, (8648), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-16 11:48:47,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 8688 transitions. [2022-11-16 11:48:47,182 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 8688 transitions. Word has length 638 [2022-11-16 11:48:47,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:48:47,182 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 8688 transitions. [2022-11-16 11:48:47,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-16 11:48:47,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 8688 transitions. [2022-11-16 11:48:47,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2022-11-16 11:48:47,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:48:47,188 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:47,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-16 11:48:47,189 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:48:47,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:47,190 INFO L85 PathProgramCache]: Analyzing trace with hash -265096328, now seen corresponding path program 1 times [2022-11-16 11:48:47,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:47,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623733391] [2022-11-16 11:48:47,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:47,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat