./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 --- 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-38b53e6 [2022-11-25 17:23:38,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:23:38,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:23:38,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:23:38,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:23:38,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:23:38,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:23:38,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:23:38,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:23:38,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:23:38,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:23:38,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:23:38,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:23:38,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:23:38,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:23:38,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:23:38,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:23:38,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:23:38,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:23:38,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:23:38,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:23:38,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:23:38,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:23:38,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:23:38,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:23:38,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:23:38,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:23:38,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:23:38,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:23:38,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:23:38,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:23:38,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:23:38,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:23:38,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:23:38,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:23:38,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:23:38,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:23:38,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:23:38,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:23:38,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:23:38,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:23:38,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:23:38,173 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:23:38,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:23:38,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:23:38,174 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:23:38,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:23:38,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:23:38,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:23:38,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:23:38,177 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:23:38,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:23:38,178 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:23:38,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:23:38,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:23:38,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:23:38,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:23:38,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:23:38,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:23:38,180 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:23:38,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:23:38,180 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:23:38,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:23:38,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:23:38,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:23:38,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:23:38,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:23:38,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:23:38,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:23:38,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:23:38,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:23:38,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:23:38,183 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:23:38,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:23:38,184 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:23:38,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:23:38,185 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 [2022-11-25 17:23:38,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:23:38,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:23:38,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:23:38,488 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:23:38,489 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:23:38,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2022-11-25 17:23:41,782 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:23:42,227 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:23:42,228 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2022-11-25 17:23:42,268 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/data/b36ce9e0a/2d4dbfa051954913967759b302ef40c9/FLAG8c85060c2 [2022-11-25 17:23:42,289 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/data/b36ce9e0a/2d4dbfa051954913967759b302ef40c9 [2022-11-25 17:23:42,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:23:42,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:23:42,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:23:42,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:23:42,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:23:42,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:23:42" (1/1) ... [2022-11-25 17:23:42,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@253ba45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:42, skipping insertion in model container [2022-11-25 17:23:42,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:23:42" (1/1) ... [2022-11-25 17:23:42,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:23:42,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:23:42,774 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:42,805 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:42,806 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:42,825 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:42,876 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:42,888 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:42,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2022-11-25 17:23:43,159 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,160 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,165 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,180 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:23:43,271 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:23:43,294 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,298 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,299 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,302 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,310 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,312 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2022-11-25 17:23:43,363 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,364 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,366 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,375 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:23:43,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:23:43,435 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:23:43,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43 WrapperNode [2022-11-25 17:23:43,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:23:43,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:23:43,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:23:43,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:23:43,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,535 INFO L138 Inliner]: procedures = 151, calls = 282, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1303 [2022-11-25 17:23:43,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:23:43,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:23:43,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:23:43,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:23:43,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,624 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:23:43,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:23:43,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:23:43,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:23:43,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (1/1) ... [2022-11-25 17:23:43,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:23:43,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:23:43,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:23:43,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:23:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-25 17:23:43,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-25 17:23:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2022-11-25 17:23:43,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2022-11-25 17:23:43,738 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2022-11-25 17:23:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2022-11-25 17:23:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-25 17:23:43,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-25 17:23:43,739 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-11-25 17:23:43,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-11-25 17:23:43,740 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-25 17:23:43,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-25 17:23:43,741 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-11-25 17:23:43,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-11-25 17:23:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2022-11-25 17:23:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2022-11-25 17:23:43,743 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-25 17:23:43,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-25 17:23:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2022-11-25 17:23:43,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2022-11-25 17:23:43,744 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-25 17:23:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-25 17:23:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-25 17:23:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-25 17:23:43,745 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-25 17:23:43,745 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-25 17:23:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2022-11-25 17:23:43,746 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2022-11-25 17:23:43,746 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2022-11-25 17:23:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2022-11-25 17:23:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-11-25 17:23:43,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-11-25 17:23:43,747 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-25 17:23:43,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-25 17:23:43,748 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-25 17:23:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-25 17:23:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-25 17:23:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2022-11-25 17:23:43,749 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2022-11-25 17:23:43,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-25 17:23:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-25 17:23:43,750 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-11-25 17:23:43,750 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-11-25 17:23:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-25 17:23:43,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-25 17:23:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2022-11-25 17:23:43,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2022-11-25 17:23:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:23:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-25 17:23:43,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-25 17:23:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2022-11-25 17:23:43,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2022-11-25 17:23:43,752 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2022-11-25 17:23:43,753 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2022-11-25 17:23:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2022-11-25 17:23:43,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2022-11-25 17:23:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2022-11-25 17:23:43,753 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2022-11-25 17:23:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-25 17:23:43,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-25 17:23:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-25 17:23:43,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-25 17:23:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-25 17:23:43,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-25 17:23:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-25 17:23:43,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-25 17:23:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2022-11-25 17:23:43,757 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2022-11-25 17:23:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-25 17:23:43,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-25 17:23:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-11-25 17:23:43,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-11-25 17:23:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2022-11-25 17:23:43,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2022-11-25 17:23:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2022-11-25 17:23:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2022-11-25 17:23:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-25 17:23:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-25 17:23:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-25 17:23:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-25 17:23:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:23:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-25 17:23:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-25 17:23:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2022-11-25 17:23:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2022-11-25 17:23:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2022-11-25 17:23:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2022-11-25 17:23:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-25 17:23:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-25 17:23:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:23:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:23:44,186 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:23:44,189 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:23:45,537 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:23:45,588 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:23:45,588 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:23:45,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:23:45 BoogieIcfgContainer [2022-11-25 17:23:45,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:23:45,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:23:45,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:23:45,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:23:45,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:23:42" (1/3) ... [2022-11-25 17:23:45,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c27054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:23:45, skipping insertion in model container [2022-11-25 17:23:45,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:23:43" (2/3) ... [2022-11-25 17:23:45,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c27054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:23:45, skipping insertion in model container [2022-11-25 17:23:45,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:23:45" (3/3) ... [2022-11-25 17:23:45,600 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_productSimulator.cil.c [2022-11-25 17:23:45,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:23:45,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:23:45,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:23:45,707 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;@4a5f6ae4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:23:45,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:23:45,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 600 states, 446 states have (on average 1.515695067264574) internal successors, (676), 466 states have internal predecessors, (676), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2022-11-25 17:23:45,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-25 17:23:45,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:23:45,767 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:23:45,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:23:45,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:23:45,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1286037596, now seen corresponding path program 1 times [2022-11-25 17:23:45,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:23:45,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947063360] [2022-11-25 17:23:45,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:45,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:23:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:23:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:23:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:23:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:23:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:23:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:23:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:23:46,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:23:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:23:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:23:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 17:23:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:23:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:23:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-25 17:23:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 17:23:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 17:23:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 17:23:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-25 17:23:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-25 17:23:46,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:23:46,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947063360] [2022-11-25 17:23:46,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947063360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:23:46,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:23:46,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:23:46,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154688584] [2022-11-25 17:23:46,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:23:46,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:23:46,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:23:46,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:23:46,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:23:46,570 INFO L87 Difference]: Start difference. First operand has 600 states, 446 states have (on average 1.515695067264574) internal successors, (676), 466 states have internal predecessors, (676), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:23:49,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:23:49,825 INFO L93 Difference]: Finished difference Result 1142 states and 1756 transitions. [2022-11-25 17:23:49,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:23:49,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 164 [2022-11-25 17:23:49,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:23:49,866 INFO L225 Difference]: With dead ends: 1142 [2022-11-25 17:23:49,866 INFO L226 Difference]: Without dead ends: 804 [2022-11-25 17:23:49,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:23:49,878 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1838 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:23:49,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 1036 Invalid, 2115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [868 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 17:23:49,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-11-25 17:23:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 593. [2022-11-25 17:23:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 440 states have (on average 1.5113636363636365) internal successors, (665), 459 states have internal predecessors, (665), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2022-11-25 17:23:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 882 transitions. [2022-11-25 17:23:50,081 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 882 transitions. Word has length 164 [2022-11-25 17:23:50,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:23:50,082 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 882 transitions. [2022-11-25 17:23:50,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:23:50,082 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 882 transitions. [2022-11-25 17:23:50,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-25 17:23:50,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:23:50,092 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:23:50,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:23:50,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:23:50,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:23:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1632157272, now seen corresponding path program 1 times [2022-11-25 17:23:50,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:23:50,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118610277] [2022-11-25 17:23:50,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:50,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:23:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:23:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:23:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:23:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:23:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:23:50,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:23:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:23:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:23:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:23:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:23:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 17:23:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:23:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:23:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 17:23:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 17:23:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:23:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-25 17:23:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-25 17:23:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-11-25 17:23:50,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:23:50,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118610277] [2022-11-25 17:23:50,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118610277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:23:50,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:23:50,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:23:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924537917] [2022-11-25 17:23:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:23:50,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:23:50,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:23:50,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:23:50,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:23:50,613 INFO L87 Difference]: Start difference. First operand 593 states and 882 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:23:55,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:23:55,001 INFO L93 Difference]: Finished difference Result 1361 states and 2075 transitions. [2022-11-25 17:23:55,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:23:55,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 165 [2022-11-25 17:23:55,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:23:55,012 INFO L225 Difference]: With dead ends: 1361 [2022-11-25 17:23:55,013 INFO L226 Difference]: Without dead ends: 804 [2022-11-25 17:23:55,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:23:55,017 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1414 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 3871 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 4578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 3871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:23:55,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 2010 Invalid, 4578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [707 Valid, 3871 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 17:23:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-11-25 17:23:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 593. [2022-11-25 17:23:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 440 states have (on average 1.4954545454545454) internal successors, (658), 459 states have internal predecessors, (658), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2022-11-25 17:23:55,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 875 transitions. [2022-11-25 17:23:55,108 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 875 transitions. Word has length 165 [2022-11-25 17:23:55,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:23:55,108 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 875 transitions. [2022-11-25 17:23:55,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:23:55,109 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 875 transitions. [2022-11-25 17:23:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-25 17:23:55,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:23:55,114 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:23:55,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:23:55,114 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:23:55,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:23:55,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1056666388, now seen corresponding path program 1 times [2022-11-25 17:23:55,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:23:55,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287897128] [2022-11-25 17:23:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:55,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:23:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:23:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:23:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:23:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:23:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:23:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:23:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:23:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:23:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:23:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:23:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 17:23:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:23:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:23:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 17:23:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-25 17:23:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 17:23:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-25 17:23:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-25 17:23:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:23:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-25 17:23:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-11-25 17:23:55,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:23:55,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287897128] [2022-11-25 17:23:55,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287897128] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:23:55,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35230141] [2022-11-25 17:23:55,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:55,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:23:55,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:23:55,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:23:55,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:23:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:23:56,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:23:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-25 17:23:56,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:23:56,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35230141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:23:56,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:23:56,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-11-25 17:23:56,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751382417] [2022-11-25 17:23:56,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:23:56,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:23:56,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:23:56,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:23:56,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:23:56,241 INFO L87 Difference]: Start difference. First operand 593 states and 875 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:23:56,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:23:56,320 INFO L93 Difference]: Finished difference Result 921 states and 1333 transitions. [2022-11-25 17:23:56,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:23:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 190 [2022-11-25 17:23:56,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:23:56,326 INFO L225 Difference]: With dead ends: 921 [2022-11-25 17:23:56,327 INFO L226 Difference]: Without dead ends: 596 [2022-11-25 17:23:56,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:23:56,330 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 1 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:23:56,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1744 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:23:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-11-25 17:23:56,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 595. [2022-11-25 17:23:56,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 442 states have (on average 1.493212669683258) internal successors, (660), 461 states have internal predecessors, (660), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2022-11-25 17:23:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 877 transitions. [2022-11-25 17:23:56,418 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 877 transitions. Word has length 190 [2022-11-25 17:23:56,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:23:56,419 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 877 transitions. [2022-11-25 17:23:56,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:23:56,419 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 877 transitions. [2022-11-25 17:23:56,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-25 17:23:56,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:23:56,424 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:23:56,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:23:56,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:23:56,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:23:56,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:23:56,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1445672682, now seen corresponding path program 1 times [2022-11-25 17:23:56,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:23:56,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858707528] [2022-11-25 17:23:56,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:56,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:23:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:23:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:23:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:23:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:23:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:23:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:23:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:23:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:23:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:23:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:56,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:23:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 17:23:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 17:23:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:23:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-25 17:23:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 17:23:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-25 17:23:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-25 17:23:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-25 17:23:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,110 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-25 17:23:57,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:23:57,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858707528] [2022-11-25 17:23:57,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858707528] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:23:57,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719910374] [2022-11-25 17:23:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:57,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:23:57,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:23:57,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:23:57,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:23:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:57,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:23:57,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:23:57,724 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-25 17:23:57,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:23:57,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719910374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:23:57,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:23:57,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-25 17:23:57,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226860113] [2022-11-25 17:23:57,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:23:57,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:23:57,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:23:57,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:23:57,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:23:57,728 INFO L87 Difference]: Start difference. First operand 595 states and 877 transitions. Second operand has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-25 17:23:57,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:23:57,937 INFO L93 Difference]: Finished difference Result 1136 states and 1682 transitions. [2022-11-25 17:23:57,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:23:57,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 177 [2022-11-25 17:23:57,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:23:57,943 INFO L225 Difference]: With dead ends: 1136 [2022-11-25 17:23:57,943 INFO L226 Difference]: Without dead ends: 599 [2022-11-25 17:23:57,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-11-25 17:23:57,946 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 196 mSDsluCounter, 4084 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 4947 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:23:57,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 4947 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:23:57,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-11-25 17:23:58,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-11-25 17:23:58,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 444 states have (on average 1.490990990990991) internal successors, (662), 464 states have internal predecessors, (662), 109 states have call successors, (109), 43 states have call predecessors, (109), 45 states have return successors, (112), 108 states have call predecessors, (112), 108 states have call successors, (112) [2022-11-25 17:23:58,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 883 transitions. [2022-11-25 17:23:58,015 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 883 transitions. Word has length 177 [2022-11-25 17:23:58,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:23:58,015 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 883 transitions. [2022-11-25 17:23:58,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-25 17:23:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 883 transitions. [2022-11-25 17:23:58,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-25 17:23:58,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:23:58,020 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:23:58,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:23:58,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:23:58,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:23:58,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:23:58,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1490272166, now seen corresponding path program 1 times [2022-11-25 17:23:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:23:58,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263465623] [2022-11-25 17:23:58,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:23:58,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:23:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:23:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:23:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:23:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:23:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:23:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:23:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:23:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:23:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:23:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:23:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:23:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:23:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 17:23:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 17:23:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 17:23:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:23:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 17:23:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-25 17:23:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-25 17:23:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:23:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:23:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-25 17:23:58,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:23:58,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263465623] [2022-11-25 17:23:58,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263465623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:23:58,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:23:58,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 17:23:58,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116245952] [2022-11-25 17:23:58,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:23:58,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:23:58,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:23:58,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:23:58,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:23:58,625 INFO L87 Difference]: Start difference. First operand 599 states and 883 transitions. Second operand has 11 states, 10 states have (on average 10.2) internal successors, (102), 7 states have internal predecessors, (102), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-25 17:24:03,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:03,957 INFO L93 Difference]: Finished difference Result 1333 states and 2029 transitions. [2022-11-25 17:24:03,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 17:24:03,958 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.2) internal successors, (102), 7 states have internal predecessors, (102), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 178 [2022-11-25 17:24:03,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:03,967 INFO L225 Difference]: With dead ends: 1333 [2022-11-25 17:24:03,967 INFO L226 Difference]: Without dead ends: 812 [2022-11-25 17:24:03,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:24:03,972 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 1596 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 5514 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 6191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 5514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:03,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 2299 Invalid, 6191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [677 Valid, 5514 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 17:24:03,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2022-11-25 17:24:04,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 601. [2022-11-25 17:24:04,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 445 states have (on average 1.489887640449438) internal successors, (663), 465 states have internal predecessors, (663), 109 states have call successors, (109), 43 states have call predecessors, (109), 46 states have return successors, (113), 109 states have call predecessors, (113), 108 states have call successors, (113) [2022-11-25 17:24:04,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 885 transitions. [2022-11-25 17:24:04,045 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 885 transitions. Word has length 178 [2022-11-25 17:24:04,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:04,047 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 885 transitions. [2022-11-25 17:24:04,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.2) internal successors, (102), 7 states have internal predecessors, (102), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2022-11-25 17:24:04,047 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 885 transitions. [2022-11-25 17:24:04,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-25 17:24:04,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:04,052 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:04,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:24:04,053 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:04,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:04,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1237956627, now seen corresponding path program 1 times [2022-11-25 17:24:04,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:04,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95630803] [2022-11-25 17:24:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:04,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 17:24:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 17:24:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:24:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-25 17:24:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 17:24:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-25 17:24:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-25 17:24:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-25 17:24:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:04,487 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-25 17:24:04,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:04,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95630803] [2022-11-25 17:24:04,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95630803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:04,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:04,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 17:24:04,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816803270] [2022-11-25 17:24:04,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:04,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:24:04,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:04,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:24:04,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:24:04,491 INFO L87 Difference]: Start difference. First operand 601 states and 885 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-25 17:24:09,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:09,748 INFO L93 Difference]: Finished difference Result 1337 states and 2035 transitions. [2022-11-25 17:24:09,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 17:24:09,749 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 192 [2022-11-25 17:24:09,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:09,754 INFO L225 Difference]: With dead ends: 1337 [2022-11-25 17:24:09,754 INFO L226 Difference]: Without dead ends: 816 [2022-11-25 17:24:09,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:24:09,757 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2006 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 5347 mSolverCounterSat, 875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 6222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 875 IncrementalHoareTripleChecker+Valid, 5347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:09,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 2079 Invalid, 6222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [875 Valid, 5347 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-25 17:24:09,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-11-25 17:24:09,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 603. [2022-11-25 17:24:09,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 446 states have (on average 1.4887892376681615) internal successors, (664), 467 states have internal predecessors, (664), 109 states have call successors, (109), 43 states have call predecessors, (109), 47 states have return successors, (116), 109 states have call predecessors, (116), 108 states have call successors, (116) [2022-11-25 17:24:09,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 889 transitions. [2022-11-25 17:24:09,823 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 889 transitions. Word has length 192 [2022-11-25 17:24:09,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:09,824 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 889 transitions. [2022-11-25 17:24:09,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-25 17:24:09,824 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 889 transitions. [2022-11-25 17:24:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-25 17:24:09,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:09,829 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:09,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:24:09,829 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:09,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:09,830 INFO L85 PathProgramCache]: Analyzing trace with hash -387088063, now seen corresponding path program 1 times [2022-11-25 17:24:09,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:09,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181491477] [2022-11-25 17:24:09,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:09,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:24:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:24:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-25 17:24:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-25 17:24:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-25 17:24:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-25 17:24:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 17:24:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:10,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:10,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181491477] [2022-11-25 17:24:10,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181491477] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:24:10,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920686073] [2022-11-25 17:24:10,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:10,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:24:10,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:24:10,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:24:10,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:24:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:10,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:24:10,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:24:10,654 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:10,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:24:10,805 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:10,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920686073] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:24:10,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:24:10,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-25 17:24:10,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646825580] [2022-11-25 17:24:10,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:24:10,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:24:10,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:10,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:24:10,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:24:10,808 INFO L87 Difference]: Start difference. First operand 603 states and 889 transitions. Second operand has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-25 17:24:15,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:15,157 INFO L93 Difference]: Finished difference Result 1520 states and 2370 transitions. [2022-11-25 17:24:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:24:15,159 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 180 [2022-11-25 17:24:15,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:15,166 INFO L225 Difference]: With dead ends: 1520 [2022-11-25 17:24:15,166 INFO L226 Difference]: Without dead ends: 1195 [2022-11-25 17:24:15,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:24:15,169 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 2504 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 3993 mSolverCounterSat, 1089 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2569 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 5082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1089 IncrementalHoareTripleChecker+Valid, 3993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:15,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2569 Valid, 2319 Invalid, 5082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1089 Valid, 3993 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 17:24:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2022-11-25 17:24:15,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 960. [2022-11-25 17:24:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 752 states have (on average 1.565159574468085) internal successors, (1177), 779 states have internal predecessors, (1177), 160 states have call successors, (160), 43 states have call predecessors, (160), 47 states have return successors, (167), 160 states have call predecessors, (167), 159 states have call successors, (167) [2022-11-25 17:24:15,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1504 transitions. [2022-11-25 17:24:15,257 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1504 transitions. Word has length 180 [2022-11-25 17:24:15,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:15,257 INFO L495 AbstractCegarLoop]: Abstraction has 960 states and 1504 transitions. [2022-11-25 17:24:15,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.090909090909092) internal successors, (144), 7 states have internal predecessors, (144), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-25 17:24:15,258 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1504 transitions. [2022-11-25 17:24:15,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-25 17:24:15,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:15,264 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:15,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:24:15,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e3df4b9-6767-4110-b395-ea5828fb2d5e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 17:24:15,473 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:15,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:15,474 INFO L85 PathProgramCache]: Analyzing trace with hash 405802502, now seen corresponding path program 1 times [2022-11-25 17:24:15,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:15,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262869354] [2022-11-25 17:24:15,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:15,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 17:24:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 17:24:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-25 17:24:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 17:24:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-25 17:24:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-25 17:24:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-25 17:24:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:15,692 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:15,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:15,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262869354] [2022-11-25 17:24:15,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262869354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:15,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:15,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:15,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662690415] [2022-11-25 17:24:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:15,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:15,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:15,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:15,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:15,696 INFO L87 Difference]: Start difference. First operand 960 states and 1504 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:19,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:19,034 INFO L93 Difference]: Finished difference Result 2294 states and 3679 transitions. [2022-11-25 17:24:19,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:24:19,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 185 [2022-11-25 17:24:19,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:19,044 INFO L225 Difference]: With dead ends: 2294 [2022-11-25 17:24:19,044 INFO L226 Difference]: Without dead ends: 1451 [2022-11-25 17:24:19,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:24:19,048 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1979 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2004 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:19,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2004 Valid, 1237 Invalid, 3049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 17:24:19,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-11-25 17:24:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1232. [2022-11-25 17:24:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 982 states have (on average 1.579429735234216) internal successors, (1551), 1015 states have internal predecessors, (1551), 202 states have call successors, (202), 43 states have call predecessors, (202), 47 states have return successors, (209), 202 states have call predecessors, (209), 201 states have call successors, (209) [2022-11-25 17:24:19,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1962 transitions. [2022-11-25 17:24:19,175 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1962 transitions. Word has length 185 [2022-11-25 17:24:19,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:19,176 INFO L495 AbstractCegarLoop]: Abstraction has 1232 states and 1962 transitions. [2022-11-25 17:24:19,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:19,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1962 transitions. [2022-11-25 17:24:19,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-25 17:24:19,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:19,184 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:19,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:24:19,184 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:19,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:19,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1500129125, now seen corresponding path program 1 times [2022-11-25 17:24:19,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:19,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704700328] [2022-11-25 17:24:19,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:19,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:24:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:24:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-25 17:24:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-25 17:24:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-25 17:24:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-25 17:24:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-25 17:24:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-25 17:24:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 17:24:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 17:24:19,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:19,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704700328] [2022-11-25 17:24:19,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704700328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:19,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:19,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:19,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423929860] [2022-11-25 17:24:19,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:19,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:19,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:19,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:19,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:19,425 INFO L87 Difference]: Start difference. First operand 1232 states and 1962 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:24:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:22,647 INFO L93 Difference]: Finished difference Result 3045 states and 4958 transitions. [2022-11-25 17:24:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:24:22,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 206 [2022-11-25 17:24:22,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:22,661 INFO L225 Difference]: With dead ends: 3045 [2022-11-25 17:24:22,661 INFO L226 Difference]: Without dead ends: 1952 [2022-11-25 17:24:22,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:24:22,667 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1976 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 2145 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2002 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 3090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 2145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:22,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2002 Valid, 1249 Invalid, 3090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [945 Valid, 2145 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 17:24:22,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2022-11-25 17:24:22,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1733. [2022-11-25 17:24:22,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1404 states have (on average 1.599002849002849) internal successors, (2245), 1447 states have internal predecessors, (2245), 281 states have call successors, (281), 43 states have call predecessors, (281), 47 states have return successors, (288), 281 states have call predecessors, (288), 280 states have call successors, (288) [2022-11-25 17:24:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2814 transitions. [2022-11-25 17:24:22,812 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2814 transitions. Word has length 206 [2022-11-25 17:24:22,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:22,813 INFO L495 AbstractCegarLoop]: Abstraction has 1733 states and 2814 transitions. [2022-11-25 17:24:22,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:24:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2814 transitions. [2022-11-25 17:24:22,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-25 17:24:22,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:22,825 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:22,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:24:22,825 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:22,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:22,826 INFO L85 PathProgramCache]: Analyzing trace with hash -699671876, now seen corresponding path program 1 times [2022-11-25 17:24:22,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:22,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962482584] [2022-11-25 17:24:22,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:22,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 17:24:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 17:24:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-25 17:24:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-25 17:24:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:24:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:22,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-25 17:24:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-25 17:24:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:23,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:23,006 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:23,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:23,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962482584] [2022-11-25 17:24:23,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962482584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:23,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:23,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121923848] [2022-11-25 17:24:23,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:23,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:23,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:23,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:23,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:23,009 INFO L87 Difference]: Start difference. First operand 1733 states and 2814 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:26,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:26,438 INFO L93 Difference]: Finished difference Result 4292 states and 7083 transitions. [2022-11-25 17:24:26,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:24:26,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 187 [2022-11-25 17:24:26,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:26,453 INFO L225 Difference]: With dead ends: 4292 [2022-11-25 17:24:26,453 INFO L226 Difference]: Without dead ends: 2761 [2022-11-25 17:24:26,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:24:26,460 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 1575 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 3009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 752 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:26,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 1482 Invalid, 3009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [752 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 17:24:26,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-11-25 17:24:26,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2542. [2022-11-25 17:24:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2542 states, 2094 states have (on average 1.6131805157593124) internal successors, (3378), 2153 states have internal predecessors, (3378), 400 states have call successors, (400), 43 states have call predecessors, (400), 47 states have return successors, (407), 400 states have call predecessors, (407), 399 states have call successors, (407) [2022-11-25 17:24:26,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2542 states to 2542 states and 4185 transitions. [2022-11-25 17:24:26,657 INFO L78 Accepts]: Start accepts. Automaton has 2542 states and 4185 transitions. Word has length 187 [2022-11-25 17:24:26,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:26,658 INFO L495 AbstractCegarLoop]: Abstraction has 2542 states and 4185 transitions. [2022-11-25 17:24:26,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:26,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2542 states and 4185 transitions. [2022-11-25 17:24:26,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-25 17:24:26,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:26,674 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:26,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:24:26,675 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:26,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:26,676 INFO L85 PathProgramCache]: Analyzing trace with hash -331145442, now seen corresponding path program 1 times [2022-11-25 17:24:26,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:26,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972295855] [2022-11-25 17:24:26,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:26,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 17:24:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:24:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-25 17:24:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 17:24:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:24:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-25 17:24:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-25 17:24:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-25 17:24:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-25 17:24:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 17:24:26,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:26,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972295855] [2022-11-25 17:24:26,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972295855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:26,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:26,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:26,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277123332] [2022-11-25 17:24:26,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:26,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:26,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:26,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:26,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:26,888 INFO L87 Difference]: Start difference. First operand 2542 states and 4185 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:24:30,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:30,203 INFO L93 Difference]: Finished difference Result 6191 states and 10315 transitions. [2022-11-25 17:24:30,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:24:30,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 208 [2022-11-25 17:24:30,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:30,223 INFO L225 Difference]: With dead ends: 6191 [2022-11-25 17:24:30,224 INFO L226 Difference]: Without dead ends: 4008 [2022-11-25 17:24:30,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:24:30,232 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1574 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:30,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 1475 Invalid, 2996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [739 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 17:24:30,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2022-11-25 17:24:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 3789. [2022-11-25 17:24:30,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3789 states, 3179 states have (on average 1.6240956275558351) internal successors, (5163), 3264 states have internal predecessors, (5163), 562 states have call successors, (562), 43 states have call predecessors, (562), 47 states have return successors, (569), 562 states have call predecessors, (569), 561 states have call successors, (569) [2022-11-25 17:24:30,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3789 states to 3789 states and 6294 transitions. [2022-11-25 17:24:30,525 INFO L78 Accepts]: Start accepts. Automaton has 3789 states and 6294 transitions. Word has length 208 [2022-11-25 17:24:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:30,529 INFO L495 AbstractCegarLoop]: Abstraction has 3789 states and 6294 transitions. [2022-11-25 17:24:30,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:24:30,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3789 states and 6294 transitions. [2022-11-25 17:24:30,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-25 17:24:30,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:30,551 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:30,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:24:30,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:30,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:30,552 INFO L85 PathProgramCache]: Analyzing trace with hash -421774476, now seen corresponding path program 1 times [2022-11-25 17:24:30,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:30,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745361079] [2022-11-25 17:24:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:30,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-25 17:24:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 17:24:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 17:24:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 17:24:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-25 17:24:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-25 17:24:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-25 17:24:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:30,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:30,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745361079] [2022-11-25 17:24:30,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745361079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:30,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:30,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:30,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409482331] [2022-11-25 17:24:30,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:30,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:30,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:30,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:30,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:30,747 INFO L87 Difference]: Start difference. First operand 3789 states and 6294 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:34,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:34,065 INFO L93 Difference]: Finished difference Result 9193 states and 15422 transitions. [2022-11-25 17:24:34,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:24:34,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 189 [2022-11-25 17:24:34,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:34,093 INFO L225 Difference]: With dead ends: 9193 [2022-11-25 17:24:34,093 INFO L226 Difference]: Without dead ends: 6022 [2022-11-25 17:24:34,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:24:34,104 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 1986 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 955 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 3041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 955 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:34,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 1250 Invalid, 3041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [955 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 17:24:34,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2022-11-25 17:24:34,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 5803. [2022-11-25 17:24:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5803 states, 4948 states have (on average 1.6321746160064672) internal successors, (8076), 5077 states have internal predecessors, (8076), 807 states have call successors, (807), 43 states have call predecessors, (807), 47 states have return successors, (814), 807 states have call predecessors, (814), 806 states have call successors, (814) [2022-11-25 17:24:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 9697 transitions. [2022-11-25 17:24:34,522 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 9697 transitions. Word has length 189 [2022-11-25 17:24:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:34,523 INFO L495 AbstractCegarLoop]: Abstraction has 5803 states and 9697 transitions. [2022-11-25 17:24:34,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 9697 transitions. [2022-11-25 17:24:34,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-25 17:24:34,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:34,553 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:34,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:24:34,554 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:34,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:34,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2001499176, now seen corresponding path program 1 times [2022-11-25 17:24:34,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:34,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705851669] [2022-11-25 17:24:34,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:34,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 17:24:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 17:24:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 17:24:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-11-25 17:24:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-25 17:24:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:24:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-25 17:24:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:34,757 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:34,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:34,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705851669] [2022-11-25 17:24:34,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705851669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:34,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:34,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:34,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466108053] [2022-11-25 17:24:34,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:34,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:34,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:34,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:34,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:34,766 INFO L87 Difference]: Start difference. First operand 5803 states and 9697 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:38,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:38,170 INFO L93 Difference]: Finished difference Result 14186 states and 23917 transitions. [2022-11-25 17:24:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:24:38,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 190 [2022-11-25 17:24:38,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:38,218 INFO L225 Difference]: With dead ends: 14186 [2022-11-25 17:24:38,218 INFO L226 Difference]: Without dead ends: 9397 [2022-11-25 17:24:38,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:24:38,232 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1581 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 3022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:38,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 1497 Invalid, 3022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 17:24:38,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9397 states. [2022-11-25 17:24:38,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9397 to 9178. [2022-11-25 17:24:38,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9178 states, 7830 states have (on average 1.6339719029374202) internal successors, (12794), 8037 states have internal predecessors, (12794), 1300 states have call successors, (1300), 43 states have call predecessors, (1300), 47 states have return successors, (1307), 1300 states have call predecessors, (1307), 1299 states have call successors, (1307) [2022-11-25 17:24:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9178 states to 9178 states and 15401 transitions. [2022-11-25 17:24:38,975 INFO L78 Accepts]: Start accepts. Automaton has 9178 states and 15401 transitions. Word has length 190 [2022-11-25 17:24:38,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:38,976 INFO L495 AbstractCegarLoop]: Abstraction has 9178 states and 15401 transitions. [2022-11-25 17:24:38,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:38,977 INFO L276 IsEmpty]: Start isEmpty. Operand 9178 states and 15401 transitions. [2022-11-25 17:24:39,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-25 17:24:39,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:39,028 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:39,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:24:39,028 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:39,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:39,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1745672489, now seen corresponding path program 1 times [2022-11-25 17:24:39,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:39,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930150975] [2022-11-25 17:24:39,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:39,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:24:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 17:24:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 17:24:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-25 17:24:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-25 17:24:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-25 17:24:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-25 17:24:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:39,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:39,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930150975] [2022-11-25 17:24:39,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930150975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:39,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:39,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:39,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030429766] [2022-11-25 17:24:39,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:39,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:39,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:39,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:39,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:39,226 INFO L87 Difference]: Start difference. First operand 9178 states and 15401 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:43,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:43,059 INFO L93 Difference]: Finished difference Result 23139 states and 39144 transitions. [2022-11-25 17:24:43,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:24:43,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 191 [2022-11-25 17:24:43,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:43,121 INFO L225 Difference]: With dead ends: 23139 [2022-11-25 17:24:43,122 INFO L226 Difference]: Without dead ends: 15471 [2022-11-25 17:24:43,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:24:43,147 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 2002 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 973 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 3061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 973 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:43,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 1261 Invalid, 3061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [973 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 17:24:43,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15471 states. [2022-11-25 17:24:44,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15471 to 15252. [2022-11-25 17:24:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15252 states, 13082 states have (on average 1.6372114355603118) internal successors, (21418), 13433 states have internal predecessors, (21418), 2122 states have call successors, (2122), 43 states have call predecessors, (2122), 47 states have return successors, (2129), 2122 states have call predecessors, (2129), 2121 states have call successors, (2129) [2022-11-25 17:24:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15252 states to 15252 states and 25669 transitions. [2022-11-25 17:24:44,257 INFO L78 Accepts]: Start accepts. Automaton has 15252 states and 25669 transitions. Word has length 191 [2022-11-25 17:24:44,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:44,258 INFO L495 AbstractCegarLoop]: Abstraction has 15252 states and 25669 transitions. [2022-11-25 17:24:44,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 15252 states and 25669 transitions. [2022-11-25 17:24:44,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-25 17:24:44,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:44,320 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:44,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:24:44,321 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:44,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1038022846, now seen corresponding path program 1 times [2022-11-25 17:24:44,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:44,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318123039] [2022-11-25 17:24:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:44,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 17:24:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 17:24:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-25 17:24:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-25 17:24:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-25 17:24:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-25 17:24:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-25 17:24:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 17:24:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-25 17:24:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:44,539 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-25 17:24:44,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:44,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318123039] [2022-11-25 17:24:44,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318123039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:44,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:44,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:44,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714994527] [2022-11-25 17:24:44,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:44,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:44,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:44,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:44,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:44,542 INFO L87 Difference]: Start difference. First operand 15252 states and 25669 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:24:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:48,707 INFO L93 Difference]: Finished difference Result 36948 states and 62156 transitions. [2022-11-25 17:24:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:24:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2022-11-25 17:24:48,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:48,801 INFO L225 Difference]: With dead ends: 36948 [2022-11-25 17:24:48,801 INFO L226 Difference]: Without dead ends: 24340 [2022-11-25 17:24:48,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:24:48,835 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 2001 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:48,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 1223 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [943 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 17:24:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24340 states. [2022-11-25 17:24:50,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24340 to 24121. [2022-11-25 17:24:50,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24121 states, 20748 states have (on average 1.619770580296896) internal successors, (33607), 21373 states have internal predecessors, (33607), 3325 states have call successors, (3325), 43 states have call predecessors, (3325), 47 states have return successors, (3332), 3325 states have call predecessors, (3332), 3324 states have call successors, (3332) [2022-11-25 17:24:50,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24121 states to 24121 states and 40264 transitions. [2022-11-25 17:24:50,400 INFO L78 Accepts]: Start accepts. Automaton has 24121 states and 40264 transitions. Word has length 212 [2022-11-25 17:24:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:50,401 INFO L495 AbstractCegarLoop]: Abstraction has 24121 states and 40264 transitions. [2022-11-25 17:24:50,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:24:50,402 INFO L276 IsEmpty]: Start isEmpty. Operand 24121 states and 40264 transitions. [2022-11-25 17:24:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-25 17:24:50,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:50,498 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:50,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:24:50,499 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:50,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:50,499 INFO L85 PathProgramCache]: Analyzing trace with hash 2051325121, now seen corresponding path program 1 times [2022-11-25 17:24:50,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:50,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876042062] [2022-11-25 17:24:50,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:50,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:24:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 17:24:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-25 17:24:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-25 17:24:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:24:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-25 17:24:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-25 17:24:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:50,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:50,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876042062] [2022-11-25 17:24:50,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876042062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:50,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:50,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:50,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497128890] [2022-11-25 17:24:50,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:50,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:50,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:50,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:50,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:50,692 INFO L87 Difference]: Start difference. First operand 24121 states and 40264 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:56,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:24:56,299 INFO L93 Difference]: Finished difference Result 63801 states and 106816 transitions. [2022-11-25 17:24:56,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:24:56,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 193 [2022-11-25 17:24:56,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:24:56,444 INFO L225 Difference]: With dead ends: 63801 [2022-11-25 17:24:56,444 INFO L226 Difference]: Without dead ends: 43136 [2022-11-25 17:24:56,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:24:56,487 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 1989 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 2054 mSolverCounterSat, 953 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 3007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 953 IncrementalHoareTripleChecker+Valid, 2054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:24:56,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 1282 Invalid, 3007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [953 Valid, 2054 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 17:24:56,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43136 states. [2022-11-25 17:24:59,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43136 to 42917. [2022-11-25 17:24:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42917 states, 37094 states have (on average 1.6154634172642477) internal successors, (59924), 37985 states have internal predecessors, (59924), 5775 states have call successors, (5775), 43 states have call predecessors, (5775), 47 states have return successors, (5782), 5775 states have call predecessors, (5782), 5774 states have call successors, (5782) [2022-11-25 17:24:59,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42917 states to 42917 states and 71481 transitions. [2022-11-25 17:24:59,499 INFO L78 Accepts]: Start accepts. Automaton has 42917 states and 71481 transitions. Word has length 193 [2022-11-25 17:24:59,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:24:59,500 INFO L495 AbstractCegarLoop]: Abstraction has 42917 states and 71481 transitions. [2022-11-25 17:24:59,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:24:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 42917 states and 71481 transitions. [2022-11-25 17:24:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-25 17:24:59,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:24:59,638 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:24:59,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:24:59,639 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:24:59,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:24:59,639 INFO L85 PathProgramCache]: Analyzing trace with hash 476937182, now seen corresponding path program 1 times [2022-11-25 17:24:59,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:24:59,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961140937] [2022-11-25 17:24:59,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:24:59,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:24:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:24:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:24:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:24:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:24:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:24:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:24:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:24:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:24:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:24:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:24:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:24:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:24:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 17:24:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:24:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 17:24:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-25 17:24:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-25 17:24:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-25 17:24:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 17:24:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:24:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:24:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:24:59,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:24:59,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961140937] [2022-11-25 17:24:59,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961140937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:24:59,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:24:59,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:24:59,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689085237] [2022-11-25 17:24:59,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:24:59,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:24:59,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:24:59,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:24:59,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:24:59,835 INFO L87 Difference]: Start difference. First operand 42917 states and 71481 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:25:06,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:25:06,847 INFO L93 Difference]: Finished difference Result 116463 states and 194698 transitions. [2022-11-25 17:25:06,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:25:06,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 194 [2022-11-25 17:25:06,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:25:07,167 INFO L225 Difference]: With dead ends: 116463 [2022-11-25 17:25:07,168 INFO L226 Difference]: Without dead ends: 78178 [2022-11-25 17:25:07,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:25:07,280 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1556 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 2993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:25:07,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 1475 Invalid, 2993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [750 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 17:25:07,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78178 states. [2022-11-25 17:25:12,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78178 to 77959. [2022-11-25 17:25:12,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77959 states, 67623 states have (on average 1.6143176138296143) internal successors, (109165), 69303 states have internal predecessors, (109165), 10288 states have call successors, (10288), 43 states have call predecessors, (10288), 47 states have return successors, (10295), 10288 states have call predecessors, (10295), 10287 states have call successors, (10295) [2022-11-25 17:25:12,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77959 states to 77959 states and 129748 transitions. [2022-11-25 17:25:12,448 INFO L78 Accepts]: Start accepts. Automaton has 77959 states and 129748 transitions. Word has length 194 [2022-11-25 17:25:12,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:25:12,449 INFO L495 AbstractCegarLoop]: Abstraction has 77959 states and 129748 transitions. [2022-11-25 17:25:12,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:25:12,449 INFO L276 IsEmpty]: Start isEmpty. Operand 77959 states and 129748 transitions. [2022-11-25 17:25:13,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-25 17:25:13,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:25:13,145 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:25:13,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 17:25:13,146 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:25:13,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:25:13,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1201749051, now seen corresponding path program 1 times [2022-11-25 17:25:13,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:25:13,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202190295] [2022-11-25 17:25:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:25:13,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:25:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:25:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:25:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 17:25:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:25:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:25:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:25:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:25:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:25:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:25:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:25:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:25:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:25:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:25:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:25:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 17:25:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-25 17:25:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 17:25:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:25:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-25 17:25:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:25:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-11-25 17:25:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 17:25:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:25:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:25:13,371 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 17:25:13,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:25:13,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202190295] [2022-11-25 17:25:13,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202190295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:25:13,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:25:13,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:25:13,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270698224] [2022-11-25 17:25:13,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:25:13,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:25:13,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:25:13,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:25:13,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:25:13,375 INFO L87 Difference]: Start difference. First operand 77959 states and 129748 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-25 17:25:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:25:22,519 INFO L93 Difference]: Finished difference Result 145928 states and 242853 transitions. [2022-11-25 17:25:22,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:25:22,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 195 [2022-11-25 17:25:22,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:25:23,176 INFO L225 Difference]: With dead ends: 145928 [2022-11-25 17:25:23,176 INFO L226 Difference]: Without dead ends: 145603 [2022-11-25 17:25:23,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:25:23,211 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 1570 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 3028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:25:23,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 1484 Invalid, 3028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [727 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 17:25:23,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145603 states.