./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7001fc39e766418166b5245dd523731096962c63b3f1d8b8399a7fc1e7a88c5f --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 04:29:51,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 04:29:51,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 04:29:51,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 04:29:51,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 04:29:51,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 04:29:51,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 04:29:52,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 04:29:52,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 04:29:52,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 04:29:52,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 04:29:52,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 04:29:52,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 04:29:52,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 04:29:52,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 04:29:52,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 04:29:52,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 04:29:52,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 04:29:52,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 04:29:52,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 04:29:52,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 04:29:52,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 04:29:52,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 04:29:52,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 04:29:52,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 04:29:52,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 04:29:52,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 04:29:52,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 04:29:52,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 04:29:52,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 04:29:52,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 04:29:52,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 04:29:52,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 04:29:52,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 04:29:52,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 04:29:52,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 04:29:52,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 04:29:52,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 04:29:52,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 04:29:52,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 04:29:52,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 04:29:52,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 04:29:52,074 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 04:29:52,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 04:29:52,075 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 04:29:52,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 04:29:52,075 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 04:29:52,076 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 04:29:52,076 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 04:29:52,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 04:29:52,076 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 04:29:52,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 04:29:52,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 04:29:52,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 04:29:52,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 04:29:52,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 04:29:52,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 04:29:52,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 04:29:52,077 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 04:29:52,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 04:29:52,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 04:29:52,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 04:29:52,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 04:29:52,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:29:52,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 04:29:52,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 04:29:52,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 04:29:52,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 04:29:52,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 04:29:52,079 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 04:29:52,079 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 04:29:52,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 04:29:52,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 04:29:52,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7001fc39e766418166b5245dd523731096962c63b3f1d8b8399a7fc1e7a88c5f [2021-12-18 04:29:52,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 04:29:52,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 04:29:52,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 04:29:52,273 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 04:29:52,274 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 04:29:52,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i [2021-12-18 04:29:52,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de0e1ab0/6b570ba837e4449896a8513cb4bced06/FLAGfdd44831b [2021-12-18 04:29:52,994 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 04:29:52,994 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i [2021-12-18 04:29:53,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de0e1ab0/6b570ba837e4449896a8513cb4bced06/FLAGfdd44831b [2021-12-18 04:29:53,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8de0e1ab0/6b570ba837e4449896a8513cb4bced06 [2021-12-18 04:29:53,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 04:29:53,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 04:29:53,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 04:29:53,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 04:29:53,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 04:29:53,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:29:53" (1/1) ... [2021-12-18 04:29:53,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e3c1b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:53, skipping insertion in model container [2021-12-18 04:29:53,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 04:29:53" (1/1) ... [2021-12-18 04:29:53,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 04:29:53,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 04:29:53,901 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6037] [2021-12-18 04:29:53,902 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6038-6039] [2021-12-18 04:29:54,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i[185861,185874] [2021-12-18 04:29:54,800 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 04:29:54,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:29:54,848 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 04:29:54,915 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6037] [2021-12-18 04:29:54,916 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6038-6039] [2021-12-18 04:29:54,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i[185861,185874] [2021-12-18 04:29:55,170 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-18 04:29:55,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 04:29:55,234 INFO L208 MainTranslator]: Completed translation [2021-12-18 04:29:55,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55 WrapperNode [2021-12-18 04:29:55,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 04:29:55,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 04:29:55,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 04:29:55,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 04:29:55,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,438 INFO L137 Inliner]: procedures = 259, calls = 2016, calls flagged for inlining = 128, calls inlined = 102, statements flattened = 4816 [2021-12-18 04:29:55,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 04:29:55,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 04:29:55,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 04:29:55,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 04:29:55,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 04:29:55,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 04:29:55,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 04:29:55,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 04:29:55,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (1/1) ... [2021-12-18 04:29:55,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 04:29:55,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:29:55,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 04:29:55,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 04:29:55,708 INFO L130 BoogieDeclarations]: Found specification of procedure he_remove_one [2021-12-18 04:29:55,709 INFO L138 BoogieDeclarations]: Found implementation of procedure he_remove_one [2021-12-18 04:29:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 04:29:55,709 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 04:29:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-18 04:29:55,709 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-18 04:29:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-18 04:29:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 04:29:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 04:29:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure he_close [2021-12-18 04:29:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure he_close [2021-12-18 04:29:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-18 04:29:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-18 04:29:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 04:29:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 04:29:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-18 04:29:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-18 04:29:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 04:29:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 04:29:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_get [2021-12-18 04:29:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_get [2021-12-18 04:29:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-18 04:29:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-18 04:29:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-18 04:29:55,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-18 04:29:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_tpd [2021-12-18 04:29:55,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_tpd [2021-12-18 04:29:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure rate_to_atmf [2021-12-18 04:29:55,712 INFO L138 BoogieDeclarations]: Found implementation of procedure rate_to_atmf [2021-12-18 04:29:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 04:29:55,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 04:29:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-18 04:29:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-18 04:29:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 04:29:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 04:29:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_put [2021-12-18 04:29:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_put [2021-12-18 04:29:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 04:29:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 04:29:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 04:29:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 04:29:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-18 04:29:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-18 04:29:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 04:29:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 04:29:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 04:29:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 04:29:55,715 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-18 04:29:55,715 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-18 04:29:55,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-18 04:29:55,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-18 04:29:55,715 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 04:29:55,715 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 04:29:55,715 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-18 04:29:55,716 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-18 04:29:55,716 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-18 04:29:55,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-18 04:29:55,716 INFO L130 BoogieDeclarations]: Found specification of procedure he_readl_internal [2021-12-18 04:29:55,716 INFO L138 BoogieDeclarations]: Found implementation of procedure he_readl_internal [2021-12-18 04:29:55,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 04:29:55,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 04:29:55,717 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 04:29:55,717 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 04:29:55,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-18 04:29:55,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-18 04:29:55,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-18 04:29:55,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-18 04:29:55,717 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 04:29:55,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 04:29:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure he_send [2021-12-18 04:29:55,718 INFO L138 BoogieDeclarations]: Found implementation of procedure he_send [2021-12-18 04:29:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-18 04:29:55,718 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-18 04:29:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 04:29:55,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 04:29:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 04:29:55,719 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 04:29:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-18 04:29:55,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-18 04:29:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-18 04:29:55,719 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-18 04:29:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure he_writel_internal [2021-12-18 04:29:55,719 INFO L138 BoogieDeclarations]: Found implementation of procedure he_writel_internal [2021-12-18 04:29:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure he_ioctl [2021-12-18 04:29:55,720 INFO L138 BoogieDeclarations]: Found implementation of procedure he_ioctl [2021-12-18 04:29:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 04:29:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure he_open [2021-12-18 04:29:55,720 INFO L138 BoogieDeclarations]: Found implementation of procedure he_open [2021-12-18 04:29:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-18 04:29:55,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-18 04:29:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-18 04:29:55,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-18 04:29:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 04:29:55,721 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 04:29:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 04:29:55,721 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 04:29:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-18 04:29:55,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-18 04:29:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 04:29:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-18 04:29:55,722 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-18 04:29:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure he_stop [2021-12-18 04:29:55,722 INFO L138 BoogieDeclarations]: Found implementation of procedure he_stop [2021-12-18 04:29:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 04:29:55,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 04:29:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 04:29:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-18 04:29:55,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-18 04:29:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure __enqueue_tpd [2021-12-18 04:29:55,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __enqueue_tpd [2021-12-18 04:29:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-18 04:29:55,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-18 04:29:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 04:29:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-18 04:29:55,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-18 04:29:55,724 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 04:29:55,724 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 04:29:55,724 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 04:29:55,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 04:29:55,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 04:29:55,724 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-18 04:29:55,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-18 04:29:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 04:29:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-18 04:29:55,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-18 04:29:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-18 04:29:55,725 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-18 04:29:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 04:29:55,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 04:29:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-18 04:29:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-18 04:29:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2021-12-18 04:29:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2021-12-18 04:29:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure read_prom_byte [2021-12-18 04:29:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure read_prom_byte [2021-12-18 04:29:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 04:29:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 04:29:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 04:29:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 04:29:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 04:29:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 04:29:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 04:29:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 04:29:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-18 04:29:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-18 04:29:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 04:29:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-18 04:29:55,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-18 04:29:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 04:29:55,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 04:29:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-18 04:29:55,728 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-18 04:29:56,330 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 04:29:56,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 04:29:56,598 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 04:29:58,766 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 04:29:58,778 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 04:29:58,778 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 04:29:58,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:29:58 BoogieIcfgContainer [2021-12-18 04:29:58,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 04:29:58,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 04:29:58,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 04:29:58,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 04:29:58,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 04:29:53" (1/3) ... [2021-12-18 04:29:58,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be9e5fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:29:58, skipping insertion in model container [2021-12-18 04:29:58,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 04:29:55" (2/3) ... [2021-12-18 04:29:58,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be9e5fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 04:29:58, skipping insertion in model container [2021-12-18 04:29:58,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 04:29:58" (3/3) ... [2021-12-18 04:29:58,787 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--atm--he.ko-entry_point.cil.out.i [2021-12-18 04:29:58,790 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 04:29:58,790 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 04:29:58,836 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 04:29:58,840 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 04:29:58,841 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 04:29:58,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1106 states have (on average 1.298372513562387) internal successors, (1436), 1129 states have internal predecessors, (1436), 510 states have call successors, (510), 69 states have call predecessors, (510), 68 states have return successors, (504), 499 states have call predecessors, (504), 504 states have call successors, (504) [2021-12-18 04:29:58,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-18 04:29:58,879 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:29:58,880 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:29:58,880 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:29:58,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:29:58,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1467579896, now seen corresponding path program 1 times [2021-12-18 04:29:58,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:29:58,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880186391] [2021-12-18 04:29:58,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:29:58,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:29:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:59,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:29:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:59,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:29:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:59,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:29:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:29:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:59,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:29:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 04:29:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:29:59,248 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-18 04:29:59,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:29:59,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880186391] [2021-12-18 04:29:59,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880186391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:29:59,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:29:59,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:29:59,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517521435] [2021-12-18 04:29:59,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:29:59,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:29:59,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:29:59,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:29:59,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:29:59,291 INFO L87 Difference]: Start difference. First operand has 1686 states, 1106 states have (on average 1.298372513562387) internal successors, (1436), 1129 states have internal predecessors, (1436), 510 states have call successors, (510), 69 states have call predecessors, (510), 68 states have return successors, (504), 499 states have call predecessors, (504), 504 states have call successors, (504) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 04:30:04,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:04,282 INFO L93 Difference]: Finished difference Result 4826 states and 7102 transitions. [2021-12-18 04:30:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 04:30:04,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2021-12-18 04:30:04,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:04,331 INFO L225 Difference]: With dead ends: 4826 [2021-12-18 04:30:04,343 INFO L226 Difference]: Without dead ends: 3112 [2021-12-18 04:30:04,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-18 04:30:04,355 INFO L933 BasicCegarLoop]: 3506 mSDtfsCounter, 2611 mSDsluCounter, 4776 mSDsCounter, 0 mSdLazyCounter, 2646 mSolverCounterSat, 1739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3006 SdHoareTripleChecker+Valid, 8282 SdHoareTripleChecker+Invalid, 4385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1739 IncrementalHoareTripleChecker+Valid, 2646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:04,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3006 Valid, 8282 Invalid, 4385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1739 Valid, 2646 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-18 04:30:04,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3112 states. [2021-12-18 04:30:04,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 2863. [2021-12-18 04:30:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2863 states, 1872 states have (on average 1.2788461538461537) internal successors, (2394), 1894 states have internal predecessors, (2394), 877 states have call successors, (877), 115 states have call predecessors, (877), 113 states have return successors, (876), 866 states have call predecessors, (876), 876 states have call successors, (876) [2021-12-18 04:30:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2863 states to 2863 states and 4147 transitions. [2021-12-18 04:30:04,583 INFO L78 Accepts]: Start accepts. Automaton has 2863 states and 4147 transitions. Word has length 61 [2021-12-18 04:30:04,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:04,585 INFO L470 AbstractCegarLoop]: Abstraction has 2863 states and 4147 transitions. [2021-12-18 04:30:04,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 04:30:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2863 states and 4147 transitions. [2021-12-18 04:30:04,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-18 04:30:04,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:04,591 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:30:04,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 04:30:04,591 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:04,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:04,592 INFO L85 PathProgramCache]: Analyzing trace with hash 528262647, now seen corresponding path program 1 times [2021-12-18 04:30:04,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:04,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567450196] [2021-12-18 04:30:04,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:04,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:04,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:04,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:04,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:30:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-18 04:30:04,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:04,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567450196] [2021-12-18 04:30:04,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567450196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:04,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:04,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:30:04,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051131063] [2021-12-18 04:30:04,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:04,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 04:30:04,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:04,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 04:30:04,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 04:30:04,790 INFO L87 Difference]: Start difference. First operand 2863 states and 4147 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 04:30:07,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:07,507 INFO L93 Difference]: Finished difference Result 6615 states and 9571 transitions. [2021-12-18 04:30:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:30:07,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2021-12-18 04:30:07,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:07,532 INFO L225 Difference]: With dead ends: 6615 [2021-12-18 04:30:07,532 INFO L226 Difference]: Without dead ends: 3765 [2021-12-18 04:30:07,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:30:07,543 INFO L933 BasicCegarLoop]: 3022 mSDtfsCounter, 1233 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 6236 SdHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:07,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1441 Valid, 6236 Invalid, 2065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-18 04:30:07,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2021-12-18 04:30:07,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3694. [2021-12-18 04:30:07,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 2441 states have (on average 1.2908643998361327) internal successors, (3151), 2476 states have internal predecessors, (3151), 1083 states have call successors, (1083), 171 states have call predecessors, (1083), 169 states have return successors, (1082), 1068 states have call predecessors, (1082), 1082 states have call successors, (1082) [2021-12-18 04:30:07,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 5316 transitions. [2021-12-18 04:30:07,688 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 5316 transitions. Word has length 69 [2021-12-18 04:30:07,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:07,688 INFO L470 AbstractCegarLoop]: Abstraction has 3694 states and 5316 transitions. [2021-12-18 04:30:07,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-18 04:30:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 5316 transitions. [2021-12-18 04:30:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-18 04:30:07,691 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:07,691 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-18 04:30:07,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 04:30:07,692 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:07,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:07,692 INFO L85 PathProgramCache]: Analyzing trace with hash 441630700, now seen corresponding path program 1 times [2021-12-18 04:30:07,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:07,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553743323] [2021-12-18 04:30:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:07,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:07,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:07,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:07,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:07,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:07,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:07,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-18 04:30:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:07,864 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-18 04:30:07,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:07,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553743323] [2021-12-18 04:30:07,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553743323] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:07,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:07,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:30:07,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333183957] [2021-12-18 04:30:07,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:07,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 04:30:07,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:07,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 04:30:07,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 04:30:07,867 INFO L87 Difference]: Start difference. First operand 3694 states and 5316 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-18 04:30:11,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:11,057 INFO L93 Difference]: Finished difference Result 8748 states and 12550 transitions. [2021-12-18 04:30:11,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:30:11,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 87 [2021-12-18 04:30:11,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:11,085 INFO L225 Difference]: With dead ends: 8748 [2021-12-18 04:30:11,085 INFO L226 Difference]: Without dead ends: 5078 [2021-12-18 04:30:11,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:30:11,103 INFO L933 BasicCegarLoop]: 3358 mSDtfsCounter, 2211 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 5670 SdHoareTripleChecker+Invalid, 2102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:11,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2656 Valid, 5670 Invalid, 2102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-18 04:30:11,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2021-12-18 04:30:11,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 4980. [2021-12-18 04:30:11,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4980 states, 3325 states have (on average 1.2947368421052632) internal successors, (4305), 3377 states have internal predecessors, (4305), 1396 states have call successors, (1396), 260 states have call predecessors, (1396), 258 states have return successors, (1395), 1375 states have call predecessors, (1395), 1395 states have call successors, (1395) [2021-12-18 04:30:11,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 7096 transitions. [2021-12-18 04:30:11,366 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 7096 transitions. Word has length 87 [2021-12-18 04:30:11,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:11,367 INFO L470 AbstractCegarLoop]: Abstraction has 4980 states and 7096 transitions. [2021-12-18 04:30:11,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-18 04:30:11,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 7096 transitions. [2021-12-18 04:30:11,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-18 04:30:11,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:11,370 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-18 04:30:11,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 04:30:11,370 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:11,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:11,371 INFO L85 PathProgramCache]: Analyzing trace with hash 2087155472, now seen corresponding path program 1 times [2021-12-18 04:30:11,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:11,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503802654] [2021-12-18 04:30:11,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:11,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:11,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:11,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:11,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:11,572 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 04:30:11,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:11,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503802654] [2021-12-18 04:30:11,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503802654] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:11,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:11,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 04:30:11,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663037242] [2021-12-18 04:30:11,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:11,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 04:30:11,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:11,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 04:30:11,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:30:11,576 INFO L87 Difference]: Start difference. First operand 4980 states and 7096 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-12-18 04:30:13,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:13,717 INFO L93 Difference]: Finished difference Result 5349 states and 7545 transitions. [2021-12-18 04:30:13,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 04:30:13,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 82 [2021-12-18 04:30:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:13,744 INFO L225 Difference]: With dead ends: 5349 [2021-12-18 04:30:13,744 INFO L226 Difference]: Without dead ends: 5346 [2021-12-18 04:30:13,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:30:13,749 INFO L933 BasicCegarLoop]: 2333 mSDtfsCounter, 2297 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 1267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2632 SdHoareTripleChecker+Valid, 3738 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1267 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:13,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2632 Valid, 3738 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1267 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 04:30:13,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5346 states. [2021-12-18 04:30:13,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5346 to 5242. [2021-12-18 04:30:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 3506 states have (on average 1.2875071306332002) internal successors, (4514), 3558 states have internal predecessors, (4514), 1430 states have call successors, (1430), 307 states have call predecessors, (1430), 305 states have return successors, (1429), 1409 states have call predecessors, (1429), 1429 states have call successors, (1429) [2021-12-18 04:30:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 7373 transitions. [2021-12-18 04:30:14,015 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 7373 transitions. Word has length 82 [2021-12-18 04:30:14,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:14,016 INFO L470 AbstractCegarLoop]: Abstraction has 5242 states and 7373 transitions. [2021-12-18 04:30:14,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-12-18 04:30:14,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 7373 transitions. [2021-12-18 04:30:14,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-18 04:30:14,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:14,025 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-12-18 04:30:14,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 04:30:14,025 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:14,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:14,026 INFO L85 PathProgramCache]: Analyzing trace with hash -659372430, now seen corresponding path program 1 times [2021-12-18 04:30:14,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:14,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420285408] [2021-12-18 04:30:14,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:14,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 04:30:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 04:30:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 04:30:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 04:30:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:14,247 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-12-18 04:30:14,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:14,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420285408] [2021-12-18 04:30:14,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420285408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:14,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:14,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:30:14,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301928173] [2021-12-18 04:30:14,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:14,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:30:14,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:14,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:30:14,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:30:14,249 INFO L87 Difference]: Start difference. First operand 5242 states and 7373 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 04:30:17,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:17,244 INFO L93 Difference]: Finished difference Result 10974 states and 15500 transitions. [2021-12-18 04:30:17,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 04:30:17,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 128 [2021-12-18 04:30:17,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:17,267 INFO L225 Difference]: With dead ends: 10974 [2021-12-18 04:30:17,267 INFO L226 Difference]: Without dead ends: 5756 [2021-12-18 04:30:17,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:30:17,283 INFO L933 BasicCegarLoop]: 2291 mSDtfsCounter, 1164 mSDsluCounter, 5047 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 1775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 7338 SdHoareTripleChecker+Invalid, 3903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1775 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:17,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1221 Valid, 7338 Invalid, 3903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1775 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-18 04:30:17,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2021-12-18 04:30:17,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5245. [2021-12-18 04:30:17,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 3509 states have (on average 1.287261328013679) internal successors, (4517), 3561 states have internal predecessors, (4517), 1430 states have call successors, (1430), 307 states have call predecessors, (1430), 305 states have return successors, (1429), 1409 states have call predecessors, (1429), 1429 states have call successors, (1429) [2021-12-18 04:30:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 7376 transitions. [2021-12-18 04:30:17,478 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 7376 transitions. Word has length 128 [2021-12-18 04:30:17,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:17,480 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 7376 transitions. [2021-12-18 04:30:17,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 04:30:17,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 7376 transitions. [2021-12-18 04:30:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-18 04:30:17,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:17,485 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-12-18 04:30:17,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 04:30:17,486 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:17,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:17,486 INFO L85 PathProgramCache]: Analyzing trace with hash -229870152, now seen corresponding path program 1 times [2021-12-18 04:30:17,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:17,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025405776] [2021-12-18 04:30:17,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:17,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 04:30:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 04:30:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 04:30:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 04:30:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:17,703 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-18 04:30:17,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:17,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025405776] [2021-12-18 04:30:17,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025405776] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:17,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:17,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 04:30:17,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811913367] [2021-12-18 04:30:17,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:17,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 04:30:17,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:17,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 04:30:17,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-18 04:30:17,705 INFO L87 Difference]: Start difference. First operand 5245 states and 7376 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-18 04:30:22,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:22,924 INFO L93 Difference]: Finished difference Result 14185 states and 20118 transitions. [2021-12-18 04:30:22,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 04:30:22,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 130 [2021-12-18 04:30:22,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:23,023 INFO L225 Difference]: With dead ends: 14185 [2021-12-18 04:30:23,023 INFO L226 Difference]: Without dead ends: 8964 [2021-12-18 04:30:23,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2021-12-18 04:30:23,040 INFO L933 BasicCegarLoop]: 4090 mSDtfsCounter, 4211 mSDsluCounter, 12635 mSDsCounter, 0 mSdLazyCounter, 4415 mSolverCounterSat, 3456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4659 SdHoareTripleChecker+Valid, 16725 SdHoareTripleChecker+Invalid, 7871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3456 IncrementalHoareTripleChecker+Valid, 4415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:23,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4659 Valid, 16725 Invalid, 7871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3456 Valid, 4415 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-12-18 04:30:23,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8964 states. [2021-12-18 04:30:23,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8964 to 5260. [2021-12-18 04:30:23,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5260 states, 3519 states have (on average 1.2870133560670645) internal successors, (4529), 3571 states have internal predecessors, (4529), 1435 states have call successors, (1435), 307 states have call predecessors, (1435), 305 states have return successors, (1434), 1414 states have call predecessors, (1434), 1434 states have call successors, (1434) [2021-12-18 04:30:23,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5260 states to 5260 states and 7398 transitions. [2021-12-18 04:30:23,316 INFO L78 Accepts]: Start accepts. Automaton has 5260 states and 7398 transitions. Word has length 130 [2021-12-18 04:30:23,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:23,317 INFO L470 AbstractCegarLoop]: Abstraction has 5260 states and 7398 transitions. [2021-12-18 04:30:23,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-18 04:30:23,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5260 states and 7398 transitions. [2021-12-18 04:30:23,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-18 04:30:23,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:23,321 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-12-18 04:30:23,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 04:30:23,321 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:23,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:23,322 INFO L85 PathProgramCache]: Analyzing trace with hash 471729722, now seen corresponding path program 1 times [2021-12-18 04:30:23,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:23,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781906443] [2021-12-18 04:30:23,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:23,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-18 04:30:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-18 04:30:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 04:30:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-18 04:30:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:23,574 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-18 04:30:23,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:23,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781906443] [2021-12-18 04:30:23,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781906443] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:23,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:23,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 04:30:23,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520447899] [2021-12-18 04:30:23,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:23,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 04:30:23,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:23,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 04:30:23,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:30:23,576 INFO L87 Difference]: Start difference. First operand 5260 states and 7398 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 04:30:29,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:29,487 INFO L93 Difference]: Finished difference Result 12779 states and 18381 transitions. [2021-12-18 04:30:29,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 04:30:29,487 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 130 [2021-12-18 04:30:29,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:29,545 INFO L225 Difference]: With dead ends: 12779 [2021-12-18 04:30:29,545 INFO L226 Difference]: Without dead ends: 7543 [2021-12-18 04:30:29,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-12-18 04:30:29,584 INFO L933 BasicCegarLoop]: 2751 mSDtfsCounter, 2169 mSDsluCounter, 13526 mSDsCounter, 0 mSdLazyCounter, 5260 mSolverCounterSat, 2278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 16277 SdHoareTripleChecker+Invalid, 7538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2278 IncrementalHoareTripleChecker+Valid, 5260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:29,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2226 Valid, 16277 Invalid, 7538 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2278 Valid, 5260 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-18 04:30:29,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2021-12-18 04:30:29,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 5270. [2021-12-18 04:30:29,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5270 states, 3527 states have (on average 1.286362347604196) internal successors, (4537), 3579 states have internal predecessors, (4537), 1435 states have call successors, (1435), 307 states have call predecessors, (1435), 307 states have return successors, (1444), 1416 states have call predecessors, (1444), 1434 states have call successors, (1444) [2021-12-18 04:30:29,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 7416 transitions. [2021-12-18 04:30:29,923 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 7416 transitions. Word has length 130 [2021-12-18 04:30:29,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:29,924 INFO L470 AbstractCegarLoop]: Abstraction has 5270 states and 7416 transitions. [2021-12-18 04:30:29,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 04:30:29,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 7416 transitions. [2021-12-18 04:30:29,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-18 04:30:29,928 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:29,928 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-12-18 04:30:29,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 04:30:29,929 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:29,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2042997817, now seen corresponding path program 1 times [2021-12-18 04:30:29,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:29,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913677778] [2021-12-18 04:30:29,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:29,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 04:30:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:30:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 04:30:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-18 04:30:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:30,079 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-18 04:30:30,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:30,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913677778] [2021-12-18 04:30:30,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913677778] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:30,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:30,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:30:30,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661489815] [2021-12-18 04:30:30,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:30,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:30:30,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:30,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:30:30,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:30:30,081 INFO L87 Difference]: Start difference. First operand 5270 states and 7416 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 04:30:35,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:35,056 INFO L93 Difference]: Finished difference Result 13964 states and 19614 transitions. [2021-12-18 04:30:35,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 04:30:35,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 137 [2021-12-18 04:30:35,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:35,077 INFO L225 Difference]: With dead ends: 13964 [2021-12-18 04:30:35,077 INFO L226 Difference]: Without dead ends: 8718 [2021-12-18 04:30:35,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-12-18 04:30:35,086 INFO L933 BasicCegarLoop]: 3925 mSDtfsCounter, 3092 mSDsluCounter, 7094 mSDsCounter, 0 mSdLazyCounter, 3583 mSolverCounterSat, 2474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3500 SdHoareTripleChecker+Valid, 11019 SdHoareTripleChecker+Invalid, 6057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2474 IncrementalHoareTripleChecker+Valid, 3583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:35,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3500 Valid, 11019 Invalid, 6057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2474 Valid, 3583 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-18 04:30:35,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2021-12-18 04:30:35,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 7954. [2021-12-18 04:30:35,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7954 states, 5348 states have (on average 1.275243081525804) internal successors, (6820), 5420 states have internal predecessors, (6820), 2120 states have call successors, (2120), 485 states have call predecessors, (2120), 485 states have return successors, (2134), 2095 states have call predecessors, (2134), 2119 states have call successors, (2134) [2021-12-18 04:30:35,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7954 states to 7954 states and 11074 transitions. [2021-12-18 04:30:35,363 INFO L78 Accepts]: Start accepts. Automaton has 7954 states and 11074 transitions. Word has length 137 [2021-12-18 04:30:35,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:35,363 INFO L470 AbstractCegarLoop]: Abstraction has 7954 states and 11074 transitions. [2021-12-18 04:30:35,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 04:30:35,363 INFO L276 IsEmpty]: Start isEmpty. Operand 7954 states and 11074 transitions. [2021-12-18 04:30:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-18 04:30:35,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:35,367 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-12-18 04:30:35,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 04:30:35,368 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:35,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:35,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1550258017, now seen corresponding path program 1 times [2021-12-18 04:30:35,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:35,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907553080] [2021-12-18 04:30:35,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:35,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 04:30:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:30:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 04:30:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 04:30:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:35,735 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-18 04:30:35,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:35,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907553080] [2021-12-18 04:30:35,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907553080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:35,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:35,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-18 04:30:35,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012326517] [2021-12-18 04:30:35,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:35,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 04:30:35,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:35,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 04:30:35,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-12-18 04:30:35,738 INFO L87 Difference]: Start difference. First operand 7954 states and 11074 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-18 04:30:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:43,259 INFO L93 Difference]: Finished difference Result 18739 states and 26638 transitions. [2021-12-18 04:30:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 04:30:43,259 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 136 [2021-12-18 04:30:43,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:43,287 INFO L225 Difference]: With dead ends: 18739 [2021-12-18 04:30:43,287 INFO L226 Difference]: Without dead ends: 10809 [2021-12-18 04:30:43,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2021-12-18 04:30:43,304 INFO L933 BasicCegarLoop]: 2973 mSDtfsCounter, 5567 mSDsluCounter, 19258 mSDsCounter, 0 mSdLazyCounter, 5860 mSolverCounterSat, 5197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5623 SdHoareTripleChecker+Valid, 22231 SdHoareTripleChecker+Invalid, 11057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5197 IncrementalHoareTripleChecker+Valid, 5860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:43,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5623 Valid, 22231 Invalid, 11057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5197 Valid, 5860 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-12-18 04:30:43,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2021-12-18 04:30:43,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 8589. [2021-12-18 04:30:43,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8589 states, 5737 states have (on average 1.274359421300331) internal successors, (7311), 5811 states have internal predecessors, (7311), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-12-18 04:30:43,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8589 states to 8589 states and 12058 transitions. [2021-12-18 04:30:43,678 INFO L78 Accepts]: Start accepts. Automaton has 8589 states and 12058 transitions. Word has length 136 [2021-12-18 04:30:43,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:43,678 INFO L470 AbstractCegarLoop]: Abstraction has 8589 states and 12058 transitions. [2021-12-18 04:30:43,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2021-12-18 04:30:43,678 INFO L276 IsEmpty]: Start isEmpty. Operand 8589 states and 12058 transitions. [2021-12-18 04:30:43,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-18 04:30:43,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:43,687 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2021-12-18 04:30:43,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 04:30:43,687 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:43,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:43,687 INFO L85 PathProgramCache]: Analyzing trace with hash -423228594, now seen corresponding path program 1 times [2021-12-18 04:30:43,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:43,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558121965] [2021-12-18 04:30:43,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:43,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 04:30:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 04:30:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:30:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 04:30:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-18 04:30:43,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:43,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558121965] [2021-12-18 04:30:43,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558121965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:43,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:43,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 04:30:43,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035745041] [2021-12-18 04:30:43,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:43,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 04:30:43,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:43,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 04:30:43,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:30:43,854 INFO L87 Difference]: Start difference. First operand 8589 states and 12058 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 04:30:48,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:48,236 INFO L93 Difference]: Finished difference Result 18933 states and 26864 transitions. [2021-12-18 04:30:48,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 04:30:48,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2021-12-18 04:30:48,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:48,274 INFO L225 Difference]: With dead ends: 18933 [2021-12-18 04:30:48,275 INFO L226 Difference]: Without dead ends: 10368 [2021-12-18 04:30:48,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:30:48,300 INFO L933 BasicCegarLoop]: 2562 mSDtfsCounter, 1335 mSDsluCounter, 7715 mSDsCounter, 0 mSdLazyCounter, 2896 mSolverCounterSat, 1279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 10277 SdHoareTripleChecker+Invalid, 4175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1279 IncrementalHoareTripleChecker+Valid, 2896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:48,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1436 Valid, 10277 Invalid, 4175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1279 Valid, 2896 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-18 04:30:48,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10368 states. [2021-12-18 04:30:48,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10368 to 8597. [2021-12-18 04:30:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8597 states, 5745 states have (on average 1.2739773716275022) internal successors, (7319), 5819 states have internal predecessors, (7319), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-12-18 04:30:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8597 states to 8597 states and 12066 transitions. [2021-12-18 04:30:48,773 INFO L78 Accepts]: Start accepts. Automaton has 8597 states and 12066 transitions. Word has length 150 [2021-12-18 04:30:48,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:48,774 INFO L470 AbstractCegarLoop]: Abstraction has 8597 states and 12066 transitions. [2021-12-18 04:30:48,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-18 04:30:48,774 INFO L276 IsEmpty]: Start isEmpty. Operand 8597 states and 12066 transitions. [2021-12-18 04:30:48,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-18 04:30:48,784 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:48,784 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:30:48,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 04:30:48,785 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:48,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1168965539, now seen corresponding path program 1 times [2021-12-18 04:30:48,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:48,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101104358] [2021-12-18 04:30:48,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:48,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 04:30:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 04:30:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:30:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 04:30:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 04:30:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:30:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 04:30:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 04:30:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 04:30:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:30:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:48,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:30:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 04:30:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 04:30:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 04:30:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 04:30:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:30:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:30:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 04:30:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-12-18 04:30:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 04:30:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 04:30:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-18 04:30:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:30:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-18 04:30:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-12-18 04:30:49,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:49,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101104358] [2021-12-18 04:30:49,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101104358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:49,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:30:49,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 04:30:49,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699105162] [2021-12-18 04:30:49,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:49,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:30:49,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:49,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:30:49,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:30:49,071 INFO L87 Difference]: Start difference. First operand 8597 states and 12066 transitions. Second operand has 6 states, 6 states have (on average 32.5) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (42), 5 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 04:30:52,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:52,996 INFO L93 Difference]: Finished difference Result 17971 states and 25306 transitions. [2021-12-18 04:30:52,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 04:30:52,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.5) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (42), 5 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 326 [2021-12-18 04:30:52,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:53,021 INFO L225 Difference]: With dead ends: 17971 [2021-12-18 04:30:53,021 INFO L226 Difference]: Without dead ends: 9398 [2021-12-18 04:30:53,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-18 04:30:53,041 INFO L933 BasicCegarLoop]: 2286 mSDtfsCounter, 865 mSDsluCounter, 4855 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 7141 SdHoareTripleChecker+Invalid, 3549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1212 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:53,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 7141 Invalid, 3549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1212 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 04:30:53,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9398 states. [2021-12-18 04:30:53,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9398 to 8617. [2021-12-18 04:30:53,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8617 states, 5765 states have (on average 1.2730268863833478) internal successors, (7339), 5839 states have internal predecessors, (7339), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-12-18 04:30:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8617 states to 8617 states and 12086 transitions. [2021-12-18 04:30:53,385 INFO L78 Accepts]: Start accepts. Automaton has 8617 states and 12086 transitions. Word has length 326 [2021-12-18 04:30:53,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:53,386 INFO L470 AbstractCegarLoop]: Abstraction has 8617 states and 12086 transitions. [2021-12-18 04:30:53,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.5) internal successors, (195), 3 states have internal predecessors, (195), 2 states have call successors, (42), 5 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 04:30:53,386 INFO L276 IsEmpty]: Start isEmpty. Operand 8617 states and 12086 transitions. [2021-12-18 04:30:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-12-18 04:30:53,397 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:53,398 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:30:53,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 04:30:53,398 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:53,398 INFO L85 PathProgramCache]: Analyzing trace with hash -990311719, now seen corresponding path program 1 times [2021-12-18 04:30:53,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:53,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830595102] [2021-12-18 04:30:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:53,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 04:30:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 04:30:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:30:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 04:30:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 04:30:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:30:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 04:30:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 04:30:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 04:30:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:30:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:30:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 04:30:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 04:30:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 04:30:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 04:30:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:30:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:30:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 04:30:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:30:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-18 04:30:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:30:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 04:30:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 04:30:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-18 04:30:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-18 04:30:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 04:30:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:30:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-18 04:30:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:53,723 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-18 04:30:53,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:53,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830595102] [2021-12-18 04:30:53,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830595102] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 04:30:53,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59012527] [2021-12-18 04:30:53,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:53,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:30:53,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:30:53,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:30:53,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 04:30:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:54,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 3358 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:30:54,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:30:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2021-12-18 04:30:55,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:30:55,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59012527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:55,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 04:30:55,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-12-18 04:30:55,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920163567] [2021-12-18 04:30:55,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:55,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:30:55,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:55,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:30:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:30:55,008 INFO L87 Difference]: Start difference. First operand 8617 states and 12086 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-18 04:30:55,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:55,269 INFO L93 Difference]: Finished difference Result 17222 states and 24290 transitions. [2021-12-18 04:30:55,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:30:55,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 394 [2021-12-18 04:30:55,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:55,301 INFO L225 Difference]: With dead ends: 17222 [2021-12-18 04:30:55,302 INFO L226 Difference]: Without dead ends: 8629 [2021-12-18 04:30:55,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:30:55,324 INFO L933 BasicCegarLoop]: 2418 mSDtfsCounter, 0 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4832 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 [2021-12-18 04:30:55,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4832 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:30:55,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8629 states. [2021-12-18 04:30:55,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8629 to 8629. [2021-12-18 04:30:55,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8629 states, 5777 states have (on average 1.2724597541976805) internal successors, (7351), 5851 states have internal predecessors, (7351), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-12-18 04:30:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8629 states to 8629 states and 12098 transitions. [2021-12-18 04:30:55,633 INFO L78 Accepts]: Start accepts. Automaton has 8629 states and 12098 transitions. Word has length 394 [2021-12-18 04:30:55,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:55,634 INFO L470 AbstractCegarLoop]: Abstraction has 8629 states and 12098 transitions. [2021-12-18 04:30:55,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-18 04:30:55,634 INFO L276 IsEmpty]: Start isEmpty. Operand 8629 states and 12098 transitions. [2021-12-18 04:30:55,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-12-18 04:30:55,647 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:55,647 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:30:55,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 04:30:55,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-18 04:30:55,864 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:55,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:55,864 INFO L85 PathProgramCache]: Analyzing trace with hash 935221592, now seen corresponding path program 1 times [2021-12-18 04:30:55,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:55,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956148812] [2021-12-18 04:30:55,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:55,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 04:30:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 04:30:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:30:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 04:30:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 04:30:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:30:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 04:30:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 04:30:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 04:30:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:30:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:30:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 04:30:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 04:30:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 04:30:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 04:30:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:30:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:30:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 04:30:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:30:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-18 04:30:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 04:30:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 04:30:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-18 04:30:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-18 04:30:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-18 04:30:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-18 04:30:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:30:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-18 04:30:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:56,204 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2021-12-18 04:30:56,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:56,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956148812] [2021-12-18 04:30:56,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956148812] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 04:30:56,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036737076] [2021-12-18 04:30:56,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:56,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:30:56,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:30:56,206 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:30:56,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 04:30:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:57,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 3358 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:30:57,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:30:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-12-18 04:30:57,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:30:57,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036737076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:30:57,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 04:30:57,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2021-12-18 04:30:57,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641012681] [2021-12-18 04:30:57,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:30:57,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:30:57,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:30:57,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:30:57,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:30:57,583 INFO L87 Difference]: Start difference. First operand 8629 states and 12098 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-18 04:30:57,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:30:57,796 INFO L93 Difference]: Finished difference Result 17300 states and 24278 transitions. [2021-12-18 04:30:57,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:30:57,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 394 [2021-12-18 04:30:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:30:57,826 INFO L225 Difference]: With dead ends: 17300 [2021-12-18 04:30:57,826 INFO L226 Difference]: Without dead ends: 8695 [2021-12-18 04:30:57,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:30:57,848 INFO L933 BasicCegarLoop]: 2424 mSDtfsCounter, 11 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4830 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:30:57,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 4830 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:30:57,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8695 states. [2021-12-18 04:30:58,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8695 to 8635. [2021-12-18 04:30:58,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8635 states, 5783 states have (on average 1.2721770707245375) internal successors, (7357), 5857 states have internal predecessors, (7357), 2366 states have call successors, (2366), 485 states have call predecessors, (2366), 485 states have return successors, (2381), 2340 states have call predecessors, (2381), 2365 states have call successors, (2381) [2021-12-18 04:30:58,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8635 states to 8635 states and 12104 transitions. [2021-12-18 04:30:58,158 INFO L78 Accepts]: Start accepts. Automaton has 8635 states and 12104 transitions. Word has length 394 [2021-12-18 04:30:58,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:30:58,158 INFO L470 AbstractCegarLoop]: Abstraction has 8635 states and 12104 transitions. [2021-12-18 04:30:58,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-18 04:30:58,159 INFO L276 IsEmpty]: Start isEmpty. Operand 8635 states and 12104 transitions. [2021-12-18 04:30:58,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2021-12-18 04:30:58,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:30:58,169 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 15, 15, 9, 9, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:30:58,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-18 04:30:58,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-18 04:30:58,384 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:30:58,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:30:58,384 INFO L85 PathProgramCache]: Analyzing trace with hash 312277472, now seen corresponding path program 1 times [2021-12-18 04:30:58,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:30:58,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595311757] [2021-12-18 04:30:58,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:58,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:30:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:30:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:30:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:30:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:30:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:30:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:30:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:30:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 04:30:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 04:30:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:30:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 04:30:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 04:30:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:30:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 04:30:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 04:30:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 04:30:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:30:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:30:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 04:30:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 04:30:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 04:30:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 04:30:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:30:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:30:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 04:30:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 04:30:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 04:30:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 04:30:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:30:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:30:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:30:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:30:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 04:30:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:30:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 04:30:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 04:30:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 04:30:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 04:30:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:30:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:30:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:30:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:30:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-12-18 04:30:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:30:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:30:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:30:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:30:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:30:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-18 04:30:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 04:30:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 04:30:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-18 04:30:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-18 04:30:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-18 04:30:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:30:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:30:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-18 04:30:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-12-18 04:30:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-12-18 04:30:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-12-18 04:30:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2021-12-18 04:30:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:30:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:30:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2021-12-18 04:30:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1668 backedges. 10 proven. 73 refuted. 0 times theorem prover too weak. 1585 trivial. 0 not checked. [2021-12-18 04:30:58,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:30:58,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595311757] [2021-12-18 04:30:58,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595311757] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 04:30:58,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688482623] [2021-12-18 04:30:58,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:30:58,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:30:58,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:30:58,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:30:58,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 04:30:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:30:59,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 3835 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 04:30:59,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:31:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1668 backedges. 495 proven. 1 refuted. 0 times theorem prover too weak. 1172 trivial. 0 not checked. [2021-12-18 04:31:00,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:31:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1668 backedges. 10 proven. 73 refuted. 0 times theorem prover too weak. 1585 trivial. 0 not checked. [2021-12-18 04:31:01,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688482623] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:31:01,283 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 04:31:01,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 9 [2021-12-18 04:31:01,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224129004] [2021-12-18 04:31:01,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 04:31:01,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 04:31:01,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:31:01,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 04:31:01,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-18 04:31:01,303 INFO L87 Difference]: Start difference. First operand 8635 states and 12104 transitions. Second operand has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 6 states have internal predecessors, (281), 4 states have call successors, (104), 5 states have call predecessors, (104), 2 states have return successors, (89), 4 states have call predecessors, (89), 4 states have call successors, (89) [2021-12-18 04:31:05,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:31:05,171 INFO L93 Difference]: Finished difference Result 18207 states and 25626 transitions. [2021-12-18 04:31:05,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 04:31:05,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 6 states have internal predecessors, (281), 4 states have call successors, (104), 5 states have call predecessors, (104), 2 states have return successors, (89), 4 states have call predecessors, (89), 4 states have call successors, (89) Word has length 541 [2021-12-18 04:31:05,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:31:05,202 INFO L225 Difference]: With dead ends: 18207 [2021-12-18 04:31:05,203 INFO L226 Difference]: Without dead ends: 9596 [2021-12-18 04:31:05,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1248 GetRequests, 1235 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2021-12-18 04:31:05,222 INFO L933 BasicCegarLoop]: 2288 mSDtfsCounter, 984 mSDsluCounter, 6889 mSDsCounter, 0 mSdLazyCounter, 2809 mSolverCounterSat, 1397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 9177 SdHoareTripleChecker+Invalid, 4206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1397 IncrementalHoareTripleChecker+Valid, 2809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-18 04:31:05,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 9177 Invalid, 4206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1397 Valid, 2809 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-18 04:31:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9596 states. [2021-12-18 04:31:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9596 to 8833. [2021-12-18 04:31:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8833 states, 5900 states have (on average 1.266779661016949) internal successors, (7474), 5974 states have internal predecessors, (7474), 2447 states have call successors, (2447), 485 states have call predecessors, (2447), 485 states have return successors, (2462), 2421 states have call predecessors, (2462), 2446 states have call successors, (2462) [2021-12-18 04:31:05,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8833 states to 8833 states and 12383 transitions. [2021-12-18 04:31:05,635 INFO L78 Accepts]: Start accepts. Automaton has 8833 states and 12383 transitions. Word has length 541 [2021-12-18 04:31:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:31:05,636 INFO L470 AbstractCegarLoop]: Abstraction has 8833 states and 12383 transitions. [2021-12-18 04:31:05,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 31.22222222222222) internal successors, (281), 6 states have internal predecessors, (281), 4 states have call successors, (104), 5 states have call predecessors, (104), 2 states have return successors, (89), 4 states have call predecessors, (89), 4 states have call successors, (89) [2021-12-18 04:31:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 8833 states and 12383 transitions. [2021-12-18 04:31:05,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2021-12-18 04:31:05,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:31:05,651 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 51, 51, 18, 18, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:31:05,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 04:31:05,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:05,877 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:31:05,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:31:05,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1411629320, now seen corresponding path program 2 times [2021-12-18 04:31:05,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:31:05,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298974588] [2021-12-18 04:31:05,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:05,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:31:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:31:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:31:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:31:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:31:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:31:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:31:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:31:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:31:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 04:31:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 04:31:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:31:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 04:31:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 04:31:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:31:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 04:31:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 04:31:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 04:31:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:31:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:31:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 04:31:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 04:31:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 04:31:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 04:31:06,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:31:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:31:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:31:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:31:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:31:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 04:31:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 04:31:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:31:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 04:31:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:31:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 04:31:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:31:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:31:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:31:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 04:31:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 04:31:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:31:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 04:31:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 04:31:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 04:31:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 04:31:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 04:31:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:31:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 04:31:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 04:31:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 04:31:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 04:31:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 04:31:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 04:31:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 04:31:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:31:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 04:31:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 04:31:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 04:31:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 04:31:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:31:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 04:31:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:31:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:31:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 04:31:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2021-12-18 04:31:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:31:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:31:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:31:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:31:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 04:31:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 04:31:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:31:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 04:31:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:31:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 04:31:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:31:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:31:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:31:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 04:31:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 04:31:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:31:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 04:31:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 04:31:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 04:31:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 04:31:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 04:31:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:31:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 04:31:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 04:31:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 04:31:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 04:31:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 04:31:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 04:31:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 04:31:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:31:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 04:31:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 04:31:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 04:31:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 04:31:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:31:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 04:31:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:31:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:31:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 04:31:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2021-12-18 04:31:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:31:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:31:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:31:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:31:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 04:31:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 04:31:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:31:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 04:31:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:31:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 04:31:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:31:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:31:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:31:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 04:31:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 04:31:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:31:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-18 04:31:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-18 04:31:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 04:31:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-18 04:31:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-18 04:31:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:31:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 04:31:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-18 04:31:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 04:31:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-18 04:31:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 04:31:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-18 04:31:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 04:31:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-18 04:31:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 04:31:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 04:31:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 04:31:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 04:31:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:31:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 04:31:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 04:31:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 04:31:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 04:31:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2021-12-18 04:31:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2021-12-18 04:31:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 907 [2021-12-18 04:31:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 912 [2021-12-18 04:31:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 917 [2021-12-18 04:31:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:31:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2021-12-18 04:31:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:06,809 INFO L134 CoverageAnalysis]: Checked inductivity of 11667 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 11657 trivial. 0 not checked. [2021-12-18 04:31:06,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:31:06,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298974588] [2021-12-18 04:31:06,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298974588] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 04:31:06,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572963032] [2021-12-18 04:31:06,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 04:31:06,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:06,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:31:06,832 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:31:06,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 04:31:07,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 04:31:07,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 04:31:07,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 5266 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 04:31:07,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:31:09,035 INFO L134 CoverageAnalysis]: Checked inductivity of 11667 backedges. 3210 proven. 64 refuted. 0 times theorem prover too weak. 8393 trivial. 0 not checked. [2021-12-18 04:31:09,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:31:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 11667 backedges. 10 proven. 820 refuted. 0 times theorem prover too weak. 10837 trivial. 0 not checked. [2021-12-18 04:31:10,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572963032] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:31:10,136 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 04:31:10,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2021-12-18 04:31:10,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003310297] [2021-12-18 04:31:10,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 04:31:10,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-18 04:31:10,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:31:10,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-18 04:31:10,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-12-18 04:31:10,139 INFO L87 Difference]: Start difference. First operand 8833 states and 12383 transitions. Second operand has 15 states, 15 states have (on average 21.0) internal successors, (315), 12 states have internal predecessors, (315), 10 states have call successors, (125), 5 states have call predecessors, (125), 2 states have return successors, (110), 10 states have call predecessors, (110), 10 states have call successors, (110) [2021-12-18 04:31:14,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:31:14,878 INFO L93 Difference]: Finished difference Result 18869 states and 26605 transitions. [2021-12-18 04:31:14,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 04:31:14,878 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 21.0) internal successors, (315), 12 states have internal predecessors, (315), 10 states have call successors, (125), 5 states have call predecessors, (125), 2 states have return successors, (110), 10 states have call predecessors, (110), 10 states have call successors, (110) Word has length 982 [2021-12-18 04:31:14,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:31:14,918 INFO L225 Difference]: With dead ends: 18869 [2021-12-18 04:31:14,919 INFO L226 Difference]: Without dead ends: 10060 [2021-12-18 04:31:14,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2301 GetRequests, 2278 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2021-12-18 04:31:14,950 INFO L933 BasicCegarLoop]: 2303 mSDtfsCounter, 1174 mSDsluCounter, 12827 mSDsCounter, 0 mSdLazyCounter, 4758 mSolverCounterSat, 1711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 15130 SdHoareTripleChecker+Invalid, 6469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1711 IncrementalHoareTripleChecker+Valid, 4758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-18 04:31:14,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 15130 Invalid, 6469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1711 Valid, 4758 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-18 04:31:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10060 states. [2021-12-18 04:31:15,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10060 to 9153. [2021-12-18 04:31:15,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9153 states, 6096 states have (on average 1.2582020997375327) internal successors, (7670), 6170 states have internal predecessors, (7670), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-12-18 04:31:15,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9153 states to 9153 states and 12827 transitions. [2021-12-18 04:31:15,469 INFO L78 Accepts]: Start accepts. Automaton has 9153 states and 12827 transitions. Word has length 982 [2021-12-18 04:31:15,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:31:15,470 INFO L470 AbstractCegarLoop]: Abstraction has 9153 states and 12827 transitions. [2021-12-18 04:31:15,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 21.0) internal successors, (315), 12 states have internal predecessors, (315), 10 states have call successors, (125), 5 states have call predecessors, (125), 2 states have return successors, (110), 10 states have call predecessors, (110), 10 states have call successors, (110) [2021-12-18 04:31:15,470 INFO L276 IsEmpty]: Start isEmpty. Operand 9153 states and 12827 transitions. [2021-12-18 04:31:15,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2423 [2021-12-18 04:31:15,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:31:15,509 INFO L514 BasicCegarLoop]: trace histogram [180, 180, 165, 165, 48, 48, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:31:15,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-18 04:31:15,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-18 04:31:15,724 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:31:15,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:31:15,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1915708820, now seen corresponding path program 3 times [2021-12-18 04:31:15,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:31:15,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560697046] [2021-12-18 04:31:15,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:15,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:31:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:31:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 04:31:16,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 04:31:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 04:31:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 04:31:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-18 04:31:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 04:31:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 04:31:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 04:31:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-18 04:31:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:31:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 04:31:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 04:31:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 04:31:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 04:31:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 04:31:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-18 04:31:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:31:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-18 04:31:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-18 04:31:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 04:31:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 04:31:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 04:31:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:16,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 04:31:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:31:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:31:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:31:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:31:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 04:31:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 04:31:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:31:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 04:31:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:31:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 04:31:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:31:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:31:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:31:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 04:31:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 04:31:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:31:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 04:31:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:31:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 04:31:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 04:31:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 04:31:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 04:31:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:31:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 04:31:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 04:31:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 04:31:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 04:31:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:31:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 04:31:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 04:31:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:31:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 04:31:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 04:31:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:31:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 04:31:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 04:31:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 04:31:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 04:31:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 04:31:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 04:31:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 04:31:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 04:31:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 04:31:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 04:31:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 04:31:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 04:31:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 04:31:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 04:31:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 04:31:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 04:31:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 04:31:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 04:31:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 04:31:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 04:31:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-18 04:31:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 04:31:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-18 04:31:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-18 04:31:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 04:31:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 04:31:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 04:31:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-18 04:31:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 04:31:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 04:31:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-18 04:31:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 04:31:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 04:31:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-12-18 04:31:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-18 04:31:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-18 04:31:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-18 04:31:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-12-18 04:31:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-18 04:31:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-12-18 04:31:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-18 04:31:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 625 [2021-12-18 04:31:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:31:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:31:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:31:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:31:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 04:31:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 04:31:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:31:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 04:31:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:31:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 04:31:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:31:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:31:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:31:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 04:31:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 04:31:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:31:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 04:31:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:31:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 04:31:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 04:31:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 04:31:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 04:31:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:31:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 04:31:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 04:31:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 04:31:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 04:31:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:31:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 04:31:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 04:31:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:31:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 04:31:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 04:31:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:31:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 04:31:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 04:31:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 04:31:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 04:31:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 04:31:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 04:31:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 04:31:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 04:31:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 04:31:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 04:31:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 04:31:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 04:31:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 04:31:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 04:31:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 04:31:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 04:31:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 04:31:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 04:31:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 04:31:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 04:31:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-18 04:31:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 04:31:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-18 04:31:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-18 04:31:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 04:31:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 04:31:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 04:31:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-18 04:31:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 04:31:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 04:31:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-18 04:31:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 04:31:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 04:31:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-12-18 04:31:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-18 04:31:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-18 04:31:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-18 04:31:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-12-18 04:31:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-18 04:31:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-12-18 04:31:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-18 04:31:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1051 [2021-12-18 04:31:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:31:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:31:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:31:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:31:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 04:31:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 04:31:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:31:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 04:31:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:31:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 04:31:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:31:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:31:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:31:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 04:31:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 04:31:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:31:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 04:31:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:31:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 04:31:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 04:31:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 04:31:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 04:31:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:31:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 04:31:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 04:31:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 04:31:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 04:31:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:31:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 04:31:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 04:31:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:31:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 04:31:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 04:31:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:31:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 04:31:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 04:31:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 04:31:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 04:31:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 04:31:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 04:31:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 04:31:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 04:31:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 04:31:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 04:31:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 04:31:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 04:31:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 04:31:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 04:31:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 04:31:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 04:31:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 04:31:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 04:31:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 04:31:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 04:31:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-18 04:31:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 04:31:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-18 04:31:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-18 04:31:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 04:31:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 04:31:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 04:31:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-18 04:31:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 04:31:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 04:31:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-18 04:31:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 04:31:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 04:31:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-12-18 04:31:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-18 04:31:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-18 04:31:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-18 04:31:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-12-18 04:31:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-18 04:31:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-12-18 04:31:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-18 04:31:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1477 [2021-12-18 04:31:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:31:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:31:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:31:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:31:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 04:31:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 04:31:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:31:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 04:31:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:31:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 04:31:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:31:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:31:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:31:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 04:31:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 04:31:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:31:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 04:31:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:31:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 04:31:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 04:31:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 04:31:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 04:31:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:31:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 04:31:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 04:31:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 04:31:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 04:31:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:31:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 04:31:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 04:31:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:31:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 04:31:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 04:31:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:31:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 04:31:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 04:31:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 04:31:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 04:31:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 04:31:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 04:31:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 04:31:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 04:31:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 04:31:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 04:31:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 04:31:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 04:31:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 04:31:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 04:31:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 04:31:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 04:31:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 04:31:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 04:31:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 04:31:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 04:31:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-18 04:31:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 04:31:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-18 04:31:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-18 04:31:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 04:31:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 04:31:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 04:31:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-18 04:31:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 04:31:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 04:31:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-18 04:31:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 04:31:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 04:31:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-12-18 04:31:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-18 04:31:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-18 04:31:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-18 04:31:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-12-18 04:31:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-18 04:31:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-12-18 04:31:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-18 04:31:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1903 [2021-12-18 04:31:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 04:31:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 04:31:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 04:31:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 04:31:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 04:31:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 04:31:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-18 04:31:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-18 04:31:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-18 04:31:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 04:31:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 04:31:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-18 04:31:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-18 04:31:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 04:31:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-18 04:31:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 04:31:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 04:31:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 04:31:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 04:31:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 04:31:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 04:31:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 04:31:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-18 04:31:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 04:31:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 04:31:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 04:31:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-18 04:31:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 04:31:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 04:31:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 04:31:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 04:31:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-18 04:31:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 04:31:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 04:31:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 04:31:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 04:31:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 04:31:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-18 04:31:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 04:31:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-18 04:31:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-18 04:31:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-18 04:31:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 04:31:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 04:31:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 04:31:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 04:31:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-18 04:31:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-18 04:31:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 04:31:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 04:31:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:17,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 04:31:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 04:31:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 04:31:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 04:31:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-18 04:31:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-18 04:31:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-18 04:31:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-18 04:31:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-12-18 04:31:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-18 04:31:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 04:31:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 04:31:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-18 04:31:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-18 04:31:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 04:31:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-18 04:31:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-18 04:31:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 04:31:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-12-18 04:31:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-12-18 04:31:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-18 04:31:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-18 04:31:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2021-12-18 04:31:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-18 04:31:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-12-18 04:31:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-18 04:31:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2333 [2021-12-18 04:31:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2340 [2021-12-18 04:31:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2347 [2021-12-18 04:31:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2352 [2021-12-18 04:31:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2357 [2021-12-18 04:31:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 04:31:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 04:31:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2411 [2021-12-18 04:31:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 110170 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 110156 trivial. 0 not checked. [2021-12-18 04:31:18,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:31:18,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560697046] [2021-12-18 04:31:18,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560697046] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 04:31:18,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575460504] [2021-12-18 04:31:18,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 04:31:18,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:18,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:31:18,109 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:31:18,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 04:31:18,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-18 04:31:18,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 04:31:18,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 04:31:18,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:31:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 110170 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 110161 trivial. 0 not checked. [2021-12-18 04:31:21,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:31:21,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575460504] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:31:21,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 04:31:21,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2021-12-18 04:31:21,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355291924] [2021-12-18 04:31:21,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:31:21,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 04:31:21,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:31:21,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 04:31:21,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-18 04:31:21,395 INFO L87 Difference]: Start difference. First operand 9153 states and 12827 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-12-18 04:31:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:31:22,067 INFO L93 Difference]: Finished difference Result 19316 states and 27204 transitions. [2021-12-18 04:31:22,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 04:31:22,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 2422 [2021-12-18 04:31:22,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:31:22,106 INFO L225 Difference]: With dead ends: 19316 [2021-12-18 04:31:22,106 INFO L226 Difference]: Without dead ends: 10187 [2021-12-18 04:31:22,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3272 GetRequests, 3263 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-18 04:31:22,134 INFO L933 BasicCegarLoop]: 2713 mSDtfsCounter, 452 mSDsluCounter, 5088 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-18 04:31:22,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 7801 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-18 04:31:22,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10187 states. [2021-12-18 04:31:22,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10187 to 9153. [2021-12-18 04:31:22,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9153 states, 6096 states have (on average 1.2582020997375327) internal successors, (7670), 6170 states have internal predecessors, (7670), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-12-18 04:31:22,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9153 states to 9153 states and 12827 transitions. [2021-12-18 04:31:22,625 INFO L78 Accepts]: Start accepts. Automaton has 9153 states and 12827 transitions. Word has length 2422 [2021-12-18 04:31:22,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:31:22,627 INFO L470 AbstractCegarLoop]: Abstraction has 9153 states and 12827 transitions. [2021-12-18 04:31:22,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-12-18 04:31:22,627 INFO L276 IsEmpty]: Start isEmpty. Operand 9153 states and 12827 transitions. [2021-12-18 04:31:22,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3632 [2021-12-18 04:31:22,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:31:22,702 INFO L514 BasicCegarLoop]: trace histogram [291, 291, 165, 165, 106, 106, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:31:22,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-18 04:31:22,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-18 04:31:22,915 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:31:22,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:31:22,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1129274337, now seen corresponding path program 1 times [2021-12-18 04:31:22,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:31:22,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784033025] [2021-12-18 04:31:22,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:22,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:31:23,122 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:31:23,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372474903] [2021-12-18 04:31:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:23,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:23,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:31:23,124 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:31:23,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 04:31:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:25,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 15550 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:31:25,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:31:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 206116 backedges. 46272 proven. 0 refuted. 0 times theorem prover too weak. 159844 trivial. 0 not checked. [2021-12-18 04:31:29,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:31:29,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:31:29,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784033025] [2021-12-18 04:31:29,241 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:31:29,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372474903] [2021-12-18 04:31:29,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372474903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:31:29,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:31:29,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:31:29,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630124689] [2021-12-18 04:31:29,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:31:29,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:31:29,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:31:29,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:31:29,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:31:29,244 INFO L87 Difference]: Start difference. First operand 9153 states and 12827 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 2 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (160), 2 states have call predecessors, (160), 2 states have call successors, (160) [2021-12-18 04:31:29,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:31:29,488 INFO L93 Difference]: Finished difference Result 18322 states and 25689 transitions. [2021-12-18 04:31:29,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:31:29,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 2 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (160), 2 states have call predecessors, (160), 2 states have call successors, (160) Word has length 3631 [2021-12-18 04:31:29,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:31:29,519 INFO L225 Difference]: With dead ends: 18322 [2021-12-18 04:31:29,520 INFO L226 Difference]: Without dead ends: 9193 [2021-12-18 04:31:29,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3630 GetRequests, 3629 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:31:29,544 INFO L933 BasicCegarLoop]: 2416 mSDtfsCounter, 4 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4823 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:31:29,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4823 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:31:29,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9193 states. [2021-12-18 04:31:29,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9193 to 9165. [2021-12-18 04:31:29,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9165 states, 6108 states have (on average 1.2576948264571055) internal successors, (7682), 6182 states have internal predecessors, (7682), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-12-18 04:31:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9165 states to 9165 states and 12839 transitions. [2021-12-18 04:31:29,902 INFO L78 Accepts]: Start accepts. Automaton has 9165 states and 12839 transitions. Word has length 3631 [2021-12-18 04:31:29,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:31:29,903 INFO L470 AbstractCegarLoop]: Abstraction has 9165 states and 12839 transitions. [2021-12-18 04:31:29,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 2 states have call successors, (164), 2 states have call predecessors, (164), 2 states have return successors, (160), 2 states have call predecessors, (160), 2 states have call successors, (160) [2021-12-18 04:31:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 9165 states and 12839 transitions. [2021-12-18 04:31:29,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3717 [2021-12-18 04:31:29,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:31:29,980 INFO L514 BasicCegarLoop]: trace histogram [297, 297, 165, 165, 112, 112, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:31:30,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 04:31:30,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-18 04:31:30,204 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:31:30,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:31:30,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1457144477, now seen corresponding path program 1 times [2021-12-18 04:31:30,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:31:30,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809922934] [2021-12-18 04:31:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:30,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:31:30,455 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:31:30,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568160810] [2021-12-18 04:31:30,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:30,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:30,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:31:30,457 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:31:30,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 04:31:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:32,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 15878 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:31:32,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:31:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 214408 backedges. 6410 proven. 0 refuted. 0 times theorem prover too weak. 207998 trivial. 0 not checked. [2021-12-18 04:31:36,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:31:36,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:31:36,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809922934] [2021-12-18 04:31:36,466 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:31:36,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568160810] [2021-12-18 04:31:36,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568160810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:31:36,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:31:36,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:31:36,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765798966] [2021-12-18 04:31:36,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:31:36,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:31:36,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:31:36,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:31:36,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:31:36,469 INFO L87 Difference]: Start difference. First operand 9165 states and 12839 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 2 states have call successors, (167), 2 states have call predecessors, (167), 2 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2021-12-18 04:31:36,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:31:36,729 INFO L93 Difference]: Finished difference Result 18442 states and 25853 transitions. [2021-12-18 04:31:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:31:36,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 2 states have call successors, (167), 2 states have call predecessors, (167), 2 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) Word has length 3716 [2021-12-18 04:31:36,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:31:36,762 INFO L225 Difference]: With dead ends: 18442 [2021-12-18 04:31:36,763 INFO L226 Difference]: Without dead ends: 9301 [2021-12-18 04:31:36,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3715 GetRequests, 3714 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:31:36,793 INFO L933 BasicCegarLoop]: 2433 mSDtfsCounter, 17 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4847 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:31:36,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 4847 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:31:36,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9301 states. [2021-12-18 04:31:37,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9301 to 9169. [2021-12-18 04:31:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9169 states, 6112 states have (on average 1.2575261780104712) internal successors, (7686), 6186 states have internal predecessors, (7686), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-12-18 04:31:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9169 states to 9169 states and 12843 transitions. [2021-12-18 04:31:37,228 INFO L78 Accepts]: Start accepts. Automaton has 9169 states and 12843 transitions. Word has length 3716 [2021-12-18 04:31:37,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:31:37,230 INFO L470 AbstractCegarLoop]: Abstraction has 9169 states and 12843 transitions. [2021-12-18 04:31:37,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 2 states have call successors, (167), 2 states have call predecessors, (167), 2 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2021-12-18 04:31:37,231 INFO L276 IsEmpty]: Start isEmpty. Operand 9169 states and 12843 transitions. [2021-12-18 04:31:37,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3799 [2021-12-18 04:31:37,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:31:37,308 INFO L514 BasicCegarLoop]: trace histogram [313, 313, 165, 165, 112, 112, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:31:37,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-18 04:31:37,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:37,520 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:31:37,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:31:37,521 INFO L85 PathProgramCache]: Analyzing trace with hash 213848489, now seen corresponding path program 1 times [2021-12-18 04:31:37,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:31:37,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142375930] [2021-12-18 04:31:37,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:37,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:31:37,742 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:31:37,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357295173] [2021-12-18 04:31:37,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:37,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:37,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:31:37,757 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:31:37,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 04:31:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:40,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 16201 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 04:31:40,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:31:44,968 INFO L134 CoverageAnalysis]: Checked inductivity of 229025 backedges. 80981 proven. 0 refuted. 0 times theorem prover too weak. 148044 trivial. 0 not checked. [2021-12-18 04:31:44,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:31:44,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:31:44,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142375930] [2021-12-18 04:31:44,969 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:31:44,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357295173] [2021-12-18 04:31:44,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357295173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:31:44,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:31:44,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 04:31:44,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251902938] [2021-12-18 04:31:44,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:31:44,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:31:44,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:31:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:31:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:31:44,992 INFO L87 Difference]: Start difference. First operand 9169 states and 12843 transitions. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2021-12-18 04:31:45,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:31:45,290 INFO L93 Difference]: Finished difference Result 18314 states and 25657 transitions. [2021-12-18 04:31:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:31:45,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) Word has length 3798 [2021-12-18 04:31:45,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:31:45,323 INFO L225 Difference]: With dead ends: 18314 [2021-12-18 04:31:45,324 INFO L226 Difference]: Without dead ends: 9169 [2021-12-18 04:31:45,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3797 GetRequests, 3796 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:31:45,349 INFO L933 BasicCegarLoop]: 2415 mSDtfsCounter, 2132 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:31:45,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2132 Valid, 2415 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:31:45,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9169 states. [2021-12-18 04:31:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9169 to 9169. [2021-12-18 04:31:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9169 states, 6112 states have (on average 1.256217277486911) internal successors, (7678), 6186 states have internal predecessors, (7678), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-12-18 04:31:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9169 states to 9169 states and 12835 transitions. [2021-12-18 04:31:45,723 INFO L78 Accepts]: Start accepts. Automaton has 9169 states and 12835 transitions. Word has length 3798 [2021-12-18 04:31:45,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:31:45,724 INFO L470 AbstractCegarLoop]: Abstraction has 9169 states and 12835 transitions. [2021-12-18 04:31:45,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2021-12-18 04:31:45,725 INFO L276 IsEmpty]: Start isEmpty. Operand 9169 states and 12835 transitions. [2021-12-18 04:31:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3799 [2021-12-18 04:31:45,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:31:45,865 INFO L514 BasicCegarLoop]: trace histogram [313, 313, 165, 165, 112, 112, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:31:45,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-18 04:31:46,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:46,082 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:31:46,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:31:46,083 INFO L85 PathProgramCache]: Analyzing trace with hash -610531481, now seen corresponding path program 1 times [2021-12-18 04:31:46,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:31:46,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017156041] [2021-12-18 04:31:46,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:46,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:31:46,367 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:31:46,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533547510] [2021-12-18 04:31:46,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:46,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:46,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:31:46,383 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:31:46,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-18 04:31:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:48,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 16180 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 04:31:49,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:31:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 229025 backedges. 80981 proven. 0 refuted. 0 times theorem prover too weak. 148044 trivial. 0 not checked. [2021-12-18 04:31:53,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:31:53,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:31:53,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017156041] [2021-12-18 04:31:53,364 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:31:53,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533547510] [2021-12-18 04:31:53,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533547510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:31:53,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:31:53,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 04:31:53,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121368523] [2021-12-18 04:31:53,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:31:53,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:31:53,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:31:53,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:31:53,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:31:53,368 INFO L87 Difference]: Start difference. First operand 9169 states and 12835 transitions. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2021-12-18 04:31:53,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:31:53,645 INFO L93 Difference]: Finished difference Result 18314 states and 25641 transitions. [2021-12-18 04:31:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:31:53,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) Word has length 3798 [2021-12-18 04:31:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:31:53,677 INFO L225 Difference]: With dead ends: 18314 [2021-12-18 04:31:53,677 INFO L226 Difference]: Without dead ends: 9169 [2021-12-18 04:31:53,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3797 GetRequests, 3796 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:31:53,703 INFO L933 BasicCegarLoop]: 2414 mSDtfsCounter, 2130 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:31:53,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2130 Valid, 2414 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:31:53,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9169 states. [2021-12-18 04:31:54,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9169 to 9169. [2021-12-18 04:31:54,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9169 states, 6112 states have (on average 1.255562827225131) internal successors, (7674), 6186 states have internal predecessors, (7674), 2571 states have call successors, (2571), 485 states have call predecessors, (2571), 485 states have return successors, (2586), 2545 states have call predecessors, (2586), 2570 states have call successors, (2586) [2021-12-18 04:31:54,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9169 states to 9169 states and 12831 transitions. [2021-12-18 04:31:54,102 INFO L78 Accepts]: Start accepts. Automaton has 9169 states and 12831 transitions. Word has length 3798 [2021-12-18 04:31:54,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:31:54,103 INFO L470 AbstractCegarLoop]: Abstraction has 9169 states and 12831 transitions. [2021-12-18 04:31:54,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 2 states have internal predecessors, (442), 2 states have call successors, (179), 2 states have call predecessors, (179), 2 states have return successors, (175), 2 states have call predecessors, (175), 2 states have call successors, (175) [2021-12-18 04:31:54,104 INFO L276 IsEmpty]: Start isEmpty. Operand 9169 states and 12831 transitions. [2021-12-18 04:31:54,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3799 [2021-12-18 04:31:54,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:31:54,186 INFO L514 BasicCegarLoop]: trace histogram [313, 313, 165, 165, 112, 112, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:31:54,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-18 04:31:54,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:54,412 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:31:54,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:31:54,412 INFO L85 PathProgramCache]: Analyzing trace with hash -360029719, now seen corresponding path program 1 times [2021-12-18 04:31:54,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:31:54,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892622562] [2021-12-18 04:31:54,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:54,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:31:54,673 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:31:54,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157852551] [2021-12-18 04:31:54,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:31:54,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:31:54,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:31:54,675 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:31:54,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-18 04:31:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:31:57,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 16159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 04:31:57,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:31:59,938 INFO L134 CoverageAnalysis]: Checked inductivity of 229025 backedges. 85963 proven. 5 refuted. 0 times theorem prover too weak. 143057 trivial. 0 not checked. [2021-12-18 04:31:59,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:32:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 229025 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 229007 trivial. 0 not checked. [2021-12-18 04:32:04,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:32:04,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892622562] [2021-12-18 04:32:04,511 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:32:04,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157852551] [2021-12-18 04:32:04,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157852551] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:32:04,511 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:32:04,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-18 04:32:04,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988052707] [2021-12-18 04:32:04,512 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:32:04,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 04:32:04,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:32:04,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 04:32:04,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-18 04:32:04,515 INFO L87 Difference]: Start difference. First operand 9169 states and 12831 transitions. Second operand has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 6 states have call successors, (328), 2 states have call predecessors, (328), 2 states have return successors, (324), 6 states have call predecessors, (324), 6 states have call successors, (324) [2021-12-18 04:32:06,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:32:06,012 INFO L93 Difference]: Finished difference Result 20618 states and 29148 transitions. [2021-12-18 04:32:06,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 04:32:06,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 6 states have call successors, (328), 2 states have call predecessors, (328), 2 states have return successors, (324), 6 states have call predecessors, (324), 6 states have call successors, (324) Word has length 3798 [2021-12-18 04:32:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:32:06,060 INFO L225 Difference]: With dead ends: 20618 [2021-12-18 04:32:06,061 INFO L226 Difference]: Without dead ends: 11473 [2021-12-18 04:32:06,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7594 GetRequests, 7588 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-12-18 04:32:06,093 INFO L933 BasicCegarLoop]: 2634 mSDtfsCounter, 1264 mSDsluCounter, 7497 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 10131 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-18 04:32:06,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1414 Valid, 10131 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-18 04:32:06,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11473 states. [2021-12-18 04:32:06,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11473 to 9333. [2021-12-18 04:32:06,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9333 states, 6224 states have (on average 1.2509640102827764) internal successors, (7786), 6298 states have internal predecessors, (7786), 2623 states have call successors, (2623), 485 states have call predecessors, (2623), 485 states have return successors, (2638), 2597 states have call predecessors, (2638), 2622 states have call successors, (2638) [2021-12-18 04:32:06,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9333 states to 9333 states and 13047 transitions. [2021-12-18 04:32:06,556 INFO L78 Accepts]: Start accepts. Automaton has 9333 states and 13047 transitions. Word has length 3798 [2021-12-18 04:32:06,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:32:06,557 INFO L470 AbstractCegarLoop]: Abstraction has 9333 states and 13047 transitions. [2021-12-18 04:32:06,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.625) internal successors, (509), 8 states have internal predecessors, (509), 6 states have call successors, (328), 2 states have call predecessors, (328), 2 states have return successors, (324), 6 states have call predecessors, (324), 6 states have call successors, (324) [2021-12-18 04:32:06,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9333 states and 13047 transitions. [2021-12-18 04:32:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6155 [2021-12-18 04:32:06,818 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:32:06,819 INFO L514 BasicCegarLoop]: trace histogram [504, 504, 330, 330, 173, 173, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:32:06,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-18 04:32:07,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-18 04:32:07,031 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:32:07,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:32:07,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1928530381, now seen corresponding path program 2 times [2021-12-18 04:32:07,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:32:07,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212623644] [2021-12-18 04:32:07,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:32:07,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:32:07,331 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:32:07,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [571374006] [2021-12-18 04:32:07,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 04:32:07,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:32:07,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:32:07,338 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:32:07,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-18 04:32:10,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 04:32:10,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 04:32:10,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 24111 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-18 04:32:10,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:32:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 668710 backedges. 318769 proven. 51 refuted. 0 times theorem prover too weak. 349890 trivial. 0 not checked. [2021-12-18 04:32:16,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:32:22,289 INFO L134 CoverageAnalysis]: Checked inductivity of 668710 backedges. 13 proven. 51 refuted. 0 times theorem prover too weak. 668646 trivial. 0 not checked. [2021-12-18 04:32:22,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:32:22,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212623644] [2021-12-18 04:32:22,290 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:32:22,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571374006] [2021-12-18 04:32:22,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571374006] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:32:22,290 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:32:22,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-12-18 04:32:22,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536674530] [2021-12-18 04:32:22,292 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:32:22,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-18 04:32:22,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:32:22,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-18 04:32:22,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-12-18 04:32:22,296 INFO L87 Difference]: Start difference. First operand 9333 states and 13047 transitions. Second operand has 16 states, 16 states have (on average 32.8125) internal successors, (525), 16 states have internal predecessors, (525), 14 states have call successors, (336), 2 states have call predecessors, (336), 2 states have return successors, (332), 14 states have call predecessors, (332), 14 states have call successors, (332) [2021-12-18 04:32:24,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:32:24,299 INFO L93 Difference]: Finished difference Result 21387 states and 30297 transitions. [2021-12-18 04:32:24,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 04:32:24,301 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 32.8125) internal successors, (525), 16 states have internal predecessors, (525), 14 states have call successors, (336), 2 states have call predecessors, (336), 2 states have return successors, (332), 14 states have call predecessors, (332), 14 states have call successors, (332) Word has length 6154 [2021-12-18 04:32:24,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:32:24,334 INFO L225 Difference]: With dead ends: 21387 [2021-12-18 04:32:24,335 INFO L226 Difference]: Without dead ends: 12078 [2021-12-18 04:32:24,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12306 GetRequests, 12292 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-12-18 04:32:24,357 INFO L933 BasicCegarLoop]: 2755 mSDtfsCounter, 1397 mSDsluCounter, 8348 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 11103 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-18 04:32:24,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 11103 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-18 04:32:24,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12078 states. [2021-12-18 04:32:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12078 to 9689. [2021-12-18 04:32:24,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9689 states, 6472 states have (on average 1.2413473423980224) internal successors, (8034), 6546 states have internal predecessors, (8034), 2731 states have call successors, (2731), 485 states have call predecessors, (2731), 485 states have return successors, (2746), 2705 states have call predecessors, (2746), 2730 states have call successors, (2746) [2021-12-18 04:32:24,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9689 states to 9689 states and 13511 transitions. [2021-12-18 04:32:24,860 INFO L78 Accepts]: Start accepts. Automaton has 9689 states and 13511 transitions. Word has length 6154 [2021-12-18 04:32:24,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:32:24,862 INFO L470 AbstractCegarLoop]: Abstraction has 9689 states and 13511 transitions. [2021-12-18 04:32:24,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 32.8125) internal successors, (525), 16 states have internal predecessors, (525), 14 states have call successors, (336), 2 states have call predecessors, (336), 2 states have return successors, (332), 14 states have call predecessors, (332), 14 states have call successors, (332) [2021-12-18 04:32:24,862 INFO L276 IsEmpty]: Start isEmpty. Operand 9689 states and 13511 transitions. [2021-12-18 04:32:25,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11297 [2021-12-18 04:32:25,556 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:32:25,559 INFO L514 BasicCegarLoop]: trace histogram [921, 921, 693, 693, 304, 304, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:32:25,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-18 04:32:25,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-18 04:32:25,767 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:32:25,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:32:25,770 INFO L85 PathProgramCache]: Analyzing trace with hash 749821309, now seen corresponding path program 3 times [2021-12-18 04:32:25,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:32:25,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469912712] [2021-12-18 04:32:25,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:32:25,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:32:26,314 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:32:26,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1896522494] [2021-12-18 04:32:26,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 04:32:26,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:32:26,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:32:26,316 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:32:26,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-18 04:32:28,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-18 04:32:28,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 04:32:28,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 04:32:28,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:32:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2466670 backedges. 61922 proven. 0 refuted. 0 times theorem prover too weak. 2404748 trivial. 0 not checked. [2021-12-18 04:32:35,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:32:35,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:32:35,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469912712] [2021-12-18 04:32:35,914 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:32:35,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896522494] [2021-12-18 04:32:35,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896522494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:32:35,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:32:35,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:32:35,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629393262] [2021-12-18 04:32:35,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:32:35,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 04:32:35,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:32:35,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 04:32:35,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 04:32:35,920 INFO L87 Difference]: Start difference. First operand 9689 states and 13511 transitions. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 2 states have call successors, (183), 2 states have call predecessors, (183), 2 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) [2021-12-18 04:32:36,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:32:36,631 INFO L93 Difference]: Finished difference Result 23316 states and 32995 transitions. [2021-12-18 04:32:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 04:32:36,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 2 states have call successors, (183), 2 states have call predecessors, (183), 2 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) Word has length 11296 [2021-12-18 04:32:36,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:32:36,746 INFO L225 Difference]: With dead ends: 23316 [2021-12-18 04:32:36,747 INFO L226 Difference]: Without dead ends: 13651 [2021-12-18 04:32:36,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11297 GetRequests, 11294 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:32:36,792 INFO L933 BasicCegarLoop]: 3401 mSDtfsCounter, 908 mSDsluCounter, 5988 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 9389 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 04:32:36,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 9389 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 04:32:36,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13651 states. [2021-12-18 04:32:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13651 to 9697. [2021-12-18 04:32:37,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9697 states, 6480 states have (on average 1.2410493827160494) internal successors, (8042), 6554 states have internal predecessors, (8042), 2731 states have call successors, (2731), 485 states have call predecessors, (2731), 485 states have return successors, (2746), 2705 states have call predecessors, (2746), 2730 states have call successors, (2746) [2021-12-18 04:32:37,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9697 states to 9697 states and 13519 transitions. [2021-12-18 04:32:37,377 INFO L78 Accepts]: Start accepts. Automaton has 9697 states and 13519 transitions. Word has length 11296 [2021-12-18 04:32:37,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:32:37,380 INFO L470 AbstractCegarLoop]: Abstraction has 9697 states and 13519 transitions. [2021-12-18 04:32:37,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 2 states have call successors, (183), 2 states have call predecessors, (183), 2 states have return successors, (179), 2 states have call predecessors, (179), 2 states have call successors, (179) [2021-12-18 04:32:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 9697 states and 13519 transitions. [2021-12-18 04:32:38,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11503 [2021-12-18 04:32:38,051 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:32:38,054 INFO L514 BasicCegarLoop]: trace histogram [933, 933, 693, 693, 304, 304, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:32:38,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-18 04:32:38,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-12-18 04:32:38,267 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:32:38,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:32:38,269 INFO L85 PathProgramCache]: Analyzing trace with hash 872649612, now seen corresponding path program 1 times [2021-12-18 04:32:38,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:32:38,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446441230] [2021-12-18 04:32:38,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:32:38,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:32:38,883 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:32:38,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581183104] [2021-12-18 04:32:38,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:32:38,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:32:38,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:32:38,885 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:32:38,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-18 04:32:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:32:45,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 42674 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:32:45,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:32:53,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2500436 backedges. 94516 proven. 0 refuted. 0 times theorem prover too weak. 2405920 trivial. 0 not checked. [2021-12-18 04:32:53,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:32:53,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:32:53,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446441230] [2021-12-18 04:32:53,575 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:32:53,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581183104] [2021-12-18 04:32:53,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581183104] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:32:53,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:32:53,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:32:53,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067376198] [2021-12-18 04:32:53,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:32:53,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:32:53,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:32:53,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:32:53,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:32:53,582 INFO L87 Difference]: Start difference. First operand 9697 states and 13519 transitions. Second operand has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) [2021-12-18 04:32:54,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:32:54,146 INFO L93 Difference]: Finished difference Result 22651 states and 31962 transitions. [2021-12-18 04:32:54,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:32:54,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) Word has length 11502 [2021-12-18 04:32:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:32:54,199 INFO L225 Difference]: With dead ends: 22651 [2021-12-18 04:32:54,200 INFO L226 Difference]: Without dead ends: 12978 [2021-12-18 04:32:54,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11501 GetRequests, 11500 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:32:54,235 INFO L933 BasicCegarLoop]: 3391 mSDtfsCounter, 559 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 6014 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:32:54,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [777 Valid, 6014 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:32:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12978 states. [2021-12-18 04:32:54,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12978 to 9701. [2021-12-18 04:32:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9701 states, 6484 states have (on average 1.2409006785934609) internal successors, (8046), 6558 states have internal predecessors, (8046), 2731 states have call successors, (2731), 485 states have call predecessors, (2731), 485 states have return successors, (2746), 2705 states have call predecessors, (2746), 2730 states have call successors, (2746) [2021-12-18 04:32:54,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9701 states to 9701 states and 13523 transitions. [2021-12-18 04:32:54,815 INFO L78 Accepts]: Start accepts. Automaton has 9701 states and 13523 transitions. Word has length 11502 [2021-12-18 04:32:54,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:32:54,827 INFO L470 AbstractCegarLoop]: Abstraction has 9701 states and 13523 transitions. [2021-12-18 04:32:54,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.66666666666666) internal successors, (479), 3 states have internal predecessors, (479), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) [2021-12-18 04:32:54,827 INFO L276 IsEmpty]: Start isEmpty. Operand 9701 states and 13523 transitions. [2021-12-18 04:32:55,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11538 [2021-12-18 04:32:55,509 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:32:55,513 INFO L514 BasicCegarLoop]: trace histogram [933, 933, 693, 693, 304, 304, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 168, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:32:55,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-18 04:32:55,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-18 04:32:55,722 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:32:55,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:32:55,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1037655428, now seen corresponding path program 1 times [2021-12-18 04:32:55,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:32:55,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610282691] [2021-12-18 04:32:55,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:32:55,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:32:56,309 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:32:56,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147311444] [2021-12-18 04:32:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:32:56,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:32:56,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:32:56,316 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:32:56,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-18 04:33:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:33:02,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 42934 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-18 04:33:02,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:33:10,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2500483 backedges. 1181435 proven. 287 refuted. 0 times theorem prover too weak. 1318761 trivial. 0 not checked. [2021-12-18 04:33:10,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:33:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2500483 backedges. 17 proven. 287 refuted. 0 times theorem prover too weak. 2500179 trivial. 0 not checked. [2021-12-18 04:33:20,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:33:20,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610282691] [2021-12-18 04:33:20,295 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:33:20,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147311444] [2021-12-18 04:33:20,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147311444] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:33:20,295 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:33:20,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-12-18 04:33:20,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208195346] [2021-12-18 04:33:20,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:33:20,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-12-18 04:33:20,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:33:20,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-12-18 04:33:20,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-12-18 04:33:20,301 INFO L87 Difference]: Start difference. First operand 9701 states and 13523 transitions. Second operand has 32 states, 32 states have (on average 19.21875) internal successors, (615), 32 states have internal predecessors, (615), 30 states have call successors, (408), 2 states have call predecessors, (408), 2 states have return successors, (404), 30 states have call predecessors, (404), 30 states have call successors, (404) [2021-12-18 04:33:22,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:33:22,971 INFO L93 Difference]: Finished difference Result 21612 states and 30503 transitions. [2021-12-18 04:33:22,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-18 04:33:22,973 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 19.21875) internal successors, (615), 32 states have internal predecessors, (615), 30 states have call successors, (408), 2 states have call predecessors, (408), 2 states have return successors, (404), 30 states have call predecessors, (404), 30 states have call successors, (404) Word has length 11537 [2021-12-18 04:33:22,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:33:23,013 INFO L225 Difference]: With dead ends: 21612 [2021-12-18 04:33:23,013 INFO L226 Difference]: Without dead ends: 11935 [2021-12-18 04:33:23,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23072 GetRequests, 23042 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-12-18 04:33:23,046 INFO L933 BasicCegarLoop]: 2772 mSDtfsCounter, 1917 mSDsluCounter, 8816 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 11588 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 774 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:33:23,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2081 Valid, 11588 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [774 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-18 04:33:23,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11935 states. [2021-12-18 04:33:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11935 to 10349. [2021-12-18 04:33:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 6940 states have (on average 1.2250720461095101) internal successors, (8502), 7014 states have internal predecessors, (8502), 2923 states have call successors, (2923), 485 states have call predecessors, (2923), 485 states have return successors, (2938), 2897 states have call predecessors, (2938), 2922 states have call successors, (2938) [2021-12-18 04:33:23,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 14363 transitions. [2021-12-18 04:33:23,613 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 14363 transitions. Word has length 11537 [2021-12-18 04:33:23,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:33:23,616 INFO L470 AbstractCegarLoop]: Abstraction has 10349 states and 14363 transitions. [2021-12-18 04:33:23,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 19.21875) internal successors, (615), 32 states have internal predecessors, (615), 30 states have call successors, (408), 2 states have call predecessors, (408), 2 states have return successors, (404), 30 states have call predecessors, (404), 30 states have call successors, (404) [2021-12-18 04:33:23,616 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 14363 transitions. [2021-12-18 04:33:25,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19268 [2021-12-18 04:33:25,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:33:25,510 INFO L514 BasicCegarLoop]: trace histogram [1557, 1557, 1221, 1221, 512, 512, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 16, 16, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:33:25,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-18 04:33:25,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:33:25,734 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:33:25,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:33:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash 503134760, now seen corresponding path program 2 times [2021-12-18 04:33:25,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:33:25,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674949659] [2021-12-18 04:33:25,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:33:25,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:33:26,535 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:33:26,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396577866] [2021-12-18 04:33:26,536 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 04:33:26,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:33:26,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:33:26,538 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:33:26,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-18 04:33:36,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 04:33:36,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 04:33:37,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 69223 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-18 04:33:37,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:33:50,373 INFO L134 CoverageAnalysis]: Checked inductivity of 7305458 backedges. 928021 proven. 1335 refuted. 0 times theorem prover too weak. 6376102 trivial. 0 not checked. [2021-12-18 04:33:50,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:34:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 7305458 backedges. 17 proven. 1335 refuted. 0 times theorem prover too weak. 7304106 trivial. 0 not checked. [2021-12-18 04:34:05,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:34:05,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674949659] [2021-12-18 04:34:05,785 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:34:05,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396577866] [2021-12-18 04:34:05,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396577866] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:34:05,786 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:34:05,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 64 [2021-12-18 04:34:05,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873452492] [2021-12-18 04:34:05,788 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:34:05,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-12-18 04:34:05,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:34:05,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-12-18 04:34:05,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-12-18 04:34:05,795 INFO L87 Difference]: Start difference. First operand 10349 states and 14363 transitions. Second operand has 64 states, 64 states have (on average 10.171875) internal successors, (651), 64 states have internal predecessors, (651), 62 states have call successors, (407), 2 states have call predecessors, (407), 2 states have return successors, (403), 62 states have call predecessors, (403), 62 states have call successors, (403) [2021-12-18 04:34:10,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:34:10,278 INFO L93 Difference]: Finished difference Result 25950 states and 36845 transitions. [2021-12-18 04:34:10,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-12-18 04:34:10,280 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 10.171875) internal successors, (651), 64 states have internal predecessors, (651), 62 states have call successors, (407), 2 states have call predecessors, (407), 2 states have return successors, (403), 62 states have call predecessors, (403), 62 states have call successors, (403) Word has length 19267 [2021-12-18 04:34:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:34:10,346 INFO L225 Difference]: With dead ends: 25950 [2021-12-18 04:34:10,346 INFO L226 Difference]: Without dead ends: 15625 [2021-12-18 04:34:10,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38532 GetRequests, 38470 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-12-18 04:34:10,396 INFO L933 BasicCegarLoop]: 3050 mSDtfsCounter, 5618 mSDsluCounter, 12852 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 1946 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6221 SdHoareTripleChecker+Valid, 15902 SdHoareTripleChecker+Invalid, 4656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1946 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-12-18 04:34:10,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6221 Valid, 15902 Invalid, 4656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1946 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-12-18 04:34:10,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15625 states. [2021-12-18 04:34:11,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15625 to 10745. [2021-12-18 04:34:11,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10745 states, 7204 states have (on average 1.21682398667407) internal successors, (8766), 7278 states have internal predecessors, (8766), 3055 states have call successors, (3055), 485 states have call predecessors, (3055), 485 states have return successors, (3070), 3029 states have call predecessors, (3070), 3054 states have call successors, (3070) [2021-12-18 04:34:11,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10745 states to 10745 states and 14891 transitions. [2021-12-18 04:34:11,222 INFO L78 Accepts]: Start accepts. Automaton has 10745 states and 14891 transitions. Word has length 19267 [2021-12-18 04:34:11,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:34:11,227 INFO L470 AbstractCegarLoop]: Abstraction has 10745 states and 14891 transitions. [2021-12-18 04:34:11,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 10.171875) internal successors, (651), 64 states have internal predecessors, (651), 62 states have call successors, (407), 2 states have call predecessors, (407), 2 states have return successors, (403), 62 states have call predecessors, (403), 62 states have call successors, (403) [2021-12-18 04:34:11,227 INFO L276 IsEmpty]: Start isEmpty. Operand 10745 states and 14891 transitions. [2021-12-18 04:34:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20192 [2021-12-18 04:34:13,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:34:13,195 INFO L514 BasicCegarLoop]: trace histogram [1623, 1623, 1221, 1221, 578, 578, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 62, 62, 62, 62, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 31, 31, 31, 31, 30, 30, 30, 30, 16, 16, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:34:13,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-18 04:34:13,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-18 04:34:13,399 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:34:13,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:34:13,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1740789994, now seen corresponding path program 3 times [2021-12-18 04:34:13,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:34:13,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526728423] [2021-12-18 04:34:13,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:34:13,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:34:14,325 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:34:14,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533164378] [2021-12-18 04:34:14,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 04:34:14,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:34:14,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:34:14,327 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:34:14,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-18 04:34:17,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-18 04:34:17,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 04:34:17,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 04:34:17,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:35:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 7775810 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 7775793 trivial. 0 not checked. [2021-12-18 04:35:29,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:35:29,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:35:29,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526728423] [2021-12-18 04:35:29,094 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:35:29,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533164378] [2021-12-18 04:35:29,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533164378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:35:29,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:35:29,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 04:35:29,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562312975] [2021-12-18 04:35:29,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:35:29,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:35:29,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:35:29,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:35:29,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:35:29,114 INFO L87 Difference]: Start difference. First operand 10745 states and 14891 transitions. Second operand has 3 states, 3 states have (on average 154.0) internal successors, (462), 2 states have internal predecessors, (462), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) [2021-12-18 04:35:29,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:35:29,748 INFO L93 Difference]: Finished difference Result 25538 states and 35405 transitions. [2021-12-18 04:35:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:35:29,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 2 states have internal predecessors, (462), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) Word has length 20191 [2021-12-18 04:35:29,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:35:29,827 INFO L225 Difference]: With dead ends: 25538 [2021-12-18 04:35:29,828 INFO L226 Difference]: Without dead ends: 14817 [2021-12-18 04:35:29,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20190 GetRequests, 20189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:35:29,885 INFO L933 BasicCegarLoop]: 2794 mSDtfsCounter, 930 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 5189 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:35:29,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 5189 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:35:29,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14817 states. [2021-12-18 04:35:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14817 to 14813. [2021-12-18 04:35:30,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14813 states, 9888 states have (on average 1.205906148867314) internal successors, (11924), 9978 states have internal predecessors, (11924), 4295 states have call successors, (4295), 628 states have call predecessors, (4295), 629 states have return successors, (4315), 4262 states have call predecessors, (4315), 4294 states have call successors, (4315) [2021-12-18 04:35:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14813 states to 14813 states and 20534 transitions. [2021-12-18 04:35:30,819 INFO L78 Accepts]: Start accepts. Automaton has 14813 states and 20534 transitions. Word has length 20191 [2021-12-18 04:35:30,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:35:30,824 INFO L470 AbstractCegarLoop]: Abstraction has 14813 states and 20534 transitions. [2021-12-18 04:35:30,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.0) internal successors, (462), 2 states have internal predecessors, (462), 2 states have call successors, (205), 2 states have call predecessors, (205), 2 states have return successors, (201), 2 states have call predecessors, (201), 2 states have call successors, (201) [2021-12-18 04:35:30,825 INFO L276 IsEmpty]: Start isEmpty. Operand 14813 states and 20534 transitions. [2021-12-18 04:35:32,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20192 [2021-12-18 04:35:32,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:35:32,809 INFO L514 BasicCegarLoop]: trace histogram [1623, 1623, 1221, 1221, 578, 578, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 118, 62, 62, 62, 62, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 31, 31, 31, 31, 30, 30, 30, 30, 16, 16, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:35:32,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-18 04:35:33,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-18 04:35:33,015 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:35:33,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:35:33,016 INFO L85 PathProgramCache]: Analyzing trace with hash -503193304, now seen corresponding path program 1 times [2021-12-18 04:35:33,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:35:33,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326543268] [2021-12-18 04:35:33,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:35:33,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:35:34,019 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:35:34,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14401763] [2021-12-18 04:35:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:35:34,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:35:34,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:35:34,022 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:35:34,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-18 04:35:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:35:45,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 72776 conjuncts, 64 conjunts are in the unsatisfiable core [2021-12-18 04:35:45,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:35:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 7775810 backedges. 1021247 proven. 5735 refuted. 0 times theorem prover too weak. 6748828 trivial. 0 not checked. [2021-12-18 04:35:59,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:36:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 7775810 backedges. 17 proven. 5735 refuted. 0 times theorem prover too weak. 7770058 trivial. 0 not checked. [2021-12-18 04:36:18,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:36:18,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326543268] [2021-12-18 04:36:18,814 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:36:18,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14401763] [2021-12-18 04:36:18,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14401763] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:36:18,814 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:36:18,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 128 [2021-12-18 04:36:18,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165867087] [2021-12-18 04:36:18,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:36:18,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2021-12-18 04:36:18,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:36:18,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2021-12-18 04:36:18,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2021-12-18 04:36:18,827 INFO L87 Difference]: Start difference. First operand 14813 states and 20534 transitions. Second operand has 128 states, 128 states have (on average 6.0859375) internal successors, (779), 128 states have internal predecessors, (779), 126 states have call successors, (471), 2 states have call predecessors, (471), 2 states have return successors, (467), 126 states have call predecessors, (467), 126 states have call successors, (467) [2021-12-18 04:36:26,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:36:26,179 INFO L93 Difference]: Finished difference Result 37848 states and 53869 transitions. [2021-12-18 04:36:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2021-12-18 04:36:26,181 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 128 states have (on average 6.0859375) internal successors, (779), 128 states have internal predecessors, (779), 126 states have call successors, (471), 2 states have call predecessors, (471), 2 states have return successors, (467), 126 states have call predecessors, (467), 126 states have call successors, (467) Word has length 20191 [2021-12-18 04:36:26,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:36:26,281 INFO L225 Difference]: With dead ends: 37848 [2021-12-18 04:36:26,281 INFO L226 Difference]: Without dead ends: 23059 [2021-12-18 04:36:26,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40380 GetRequests, 40254 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2021-12-18 04:36:26,364 INFO L933 BasicCegarLoop]: 3146 mSDtfsCounter, 4498 mSDsluCounter, 18232 mSDsCounter, 0 mSdLazyCounter, 5519 mSolverCounterSat, 1783 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 21378 SdHoareTripleChecker+Invalid, 7302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1783 IncrementalHoareTripleChecker+Valid, 5519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-18 04:36:26,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5133 Valid, 21378 Invalid, 7302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1783 Valid, 5519 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-18 04:36:26,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23059 states. [2021-12-18 04:36:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23059 to 16541. [2021-12-18 04:36:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16541 states, 11040 states have (on average 1.1844202898550724) internal successors, (13076), 11130 states have internal predecessors, (13076), 4871 states have call successors, (4871), 628 states have call predecessors, (4871), 629 states have return successors, (4891), 4838 states have call predecessors, (4891), 4870 states have call successors, (4891) [2021-12-18 04:36:27,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16541 states to 16541 states and 22838 transitions. [2021-12-18 04:36:27,762 INFO L78 Accepts]: Start accepts. Automaton has 16541 states and 22838 transitions. Word has length 20191 [2021-12-18 04:36:27,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:36:27,767 INFO L470 AbstractCegarLoop]: Abstraction has 16541 states and 22838 transitions. [2021-12-18 04:36:27,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 6.0859375) internal successors, (779), 128 states have internal predecessors, (779), 126 states have call successors, (471), 2 states have call predecessors, (471), 2 states have return successors, (467), 126 states have call predecessors, (467), 126 states have call successors, (467) [2021-12-18 04:36:27,767 INFO L276 IsEmpty]: Start isEmpty. Operand 16541 states and 22838 transitions. [2021-12-18 04:36:30,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22880 [2021-12-18 04:36:30,411 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:36:30,412 INFO L514 BasicCegarLoop]: trace histogram [1815, 1815, 1221, 1221, 770, 770, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 214, 214, 214, 214, 214, 214, 214, 214, 214, 214, 214, 214, 214, 214, 214, 214, 126, 126, 126, 126, 63, 63, 63, 63, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 30, 30, 30, 30, 16, 16, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:36:30,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-18 04:36:30,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-18 04:36:30,627 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:36:30,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:36:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1780217624, now seen corresponding path program 2 times [2021-12-18 04:36:30,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:36:30,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383248526] [2021-12-18 04:36:30,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:36:30,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:36:31,509 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:36:31,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161701892] [2021-12-18 04:36:31,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 04:36:31,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:36:31,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:36:31,512 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:36:31,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-18 04:36:45,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 04:36:45,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 04:36:46,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 83144 conjuncts, 128 conjunts are in the unsatisfiable core [2021-12-18 04:36:46,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:37:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 9382658 backedges. 1650943 proven. 23751 refuted. 0 times theorem prover too weak. 7707964 trivial. 0 not checked. [2021-12-18 04:37:03,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:37:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 9382658 backedges. 17 proven. 23751 refuted. 0 times theorem prover too weak. 9358890 trivial. 0 not checked. [2021-12-18 04:37:30,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:37:30,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383248526] [2021-12-18 04:37:30,115 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:37:30,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161701892] [2021-12-18 04:37:30,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161701892] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:37:30,116 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:37:30,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129] total 256 [2021-12-18 04:37:30,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123700802] [2021-12-18 04:37:30,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:37:30,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2021-12-18 04:37:30,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:37:30,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2021-12-18 04:37:30,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32640, Invalid=32640, Unknown=0, NotChecked=0, Total=65280 [2021-12-18 04:37:30,134 INFO L87 Difference]: Start difference. First operand 16541 states and 22838 transitions. Second operand has 256 states, 256 states have (on average 4.04296875) internal successors, (1035), 256 states have internal predecessors, (1035), 254 states have call successors, (599), 2 states have call predecessors, (599), 2 states have return successors, (595), 254 states have call predecessors, (595), 254 states have call successors, (595) [2021-12-18 04:37:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:37:56,230 INFO L93 Difference]: Finished difference Result 43032 states and 61357 transitions. [2021-12-18 04:37:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 256 states. [2021-12-18 04:37:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 256 states have (on average 4.04296875) internal successors, (1035), 256 states have internal predecessors, (1035), 254 states have call successors, (599), 2 states have call predecessors, (599), 2 states have return successors, (595), 254 states have call predecessors, (595), 254 states have call successors, (595) Word has length 22879 [2021-12-18 04:37:56,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:37:56,345 INFO L225 Difference]: With dead ends: 43032 [2021-12-18 04:37:56,345 INFO L226 Difference]: Without dead ends: 26515 [2021-12-18 04:37:56,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45756 GetRequests, 45502 SyntacticMatches, 0 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=32640, Invalid=32640, Unknown=0, NotChecked=0, Total=65280 [2021-12-18 04:37:56,547 INFO L933 BasicCegarLoop]: 3338 mSDtfsCounter, 8143 mSDsluCounter, 17095 mSDsCounter, 0 mSdLazyCounter, 7014 mSolverCounterSat, 4446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8842 SdHoareTripleChecker+Valid, 20433 SdHoareTripleChecker+Invalid, 11460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4446 IncrementalHoareTripleChecker+Valid, 7014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-18 04:37:56,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8842 Valid, 20433 Invalid, 11460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4446 Valid, 7014 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-18 04:37:56,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26515 states. [2021-12-18 04:37:57,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26515 to 19997. [2021-12-18 04:37:57,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19997 states, 13344 states have (on average 1.1525779376498801) internal successors, (15380), 13434 states have internal predecessors, (15380), 6023 states have call successors, (6023), 628 states have call predecessors, (6023), 629 states have return successors, (6043), 5990 states have call predecessors, (6043), 6022 states have call successors, (6043) [2021-12-18 04:37:58,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19997 states to 19997 states and 27446 transitions. [2021-12-18 04:37:58,050 INFO L78 Accepts]: Start accepts. Automaton has 19997 states and 27446 transitions. Word has length 22879 [2021-12-18 04:37:58,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:37:58,055 INFO L470 AbstractCegarLoop]: Abstraction has 19997 states and 27446 transitions. [2021-12-18 04:37:58,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 256 states have (on average 4.04296875) internal successors, (1035), 256 states have internal predecessors, (1035), 254 states have call successors, (599), 2 states have call predecessors, (599), 2 states have return successors, (595), 254 states have call predecessors, (595), 254 states have call successors, (595) [2021-12-18 04:37:58,056 INFO L276 IsEmpty]: Start isEmpty. Operand 19997 states and 27446 transitions. [2021-12-18 04:38:01,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28256 [2021-12-18 04:38:01,955 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:38:01,956 INFO L514 BasicCegarLoop]: trace histogram [2199, 2199, 1221, 1221, 1154, 1154, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 406, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 296, 254, 254, 254, 254, 127, 127, 127, 127, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 30, 30, 30, 30, 16, 16, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:38:02,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-12-18 04:38:02,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-18 04:38:02,180 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:38:02,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:38:02,181 INFO L85 PathProgramCache]: Analyzing trace with hash 62150760, now seen corresponding path program 3 times [2021-12-18 04:38:02,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 04:38:02,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171323070] [2021-12-18 04:38:02,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:38:02,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 04:38:03,228 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 04:38:03,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671554326] [2021-12-18 04:38:03,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 04:38:03,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:38:03,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 04:38:03,231 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 04:38:03,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-18 04:38:07,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-18 04:38:07,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 04:38:07,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-18 04:38:07,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:38:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 13665410 backedges. 237192 proven. 0 refuted. 0 times theorem prover too weak. 13428218 trivial. 0 not checked. [2021-12-18 04:38:23,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:38:23,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 04:38:23,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171323070] [2021-12-18 04:38:23,300 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 04:38:23,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671554326] [2021-12-18 04:38:23,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671554326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:38:23,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:38:23,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 04:38:23,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252220545] [2021-12-18 04:38:23,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:38:23,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 04:38:23,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 04:38:23,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 04:38:23,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 04:38:23,307 INFO L87 Difference]: Start difference. First operand 19997 states and 27446 transitions. Second operand has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 2 states have call successors, (211), 2 states have call predecessors, (211), 2 states have return successors, (207), 2 states have call predecessors, (207), 2 states have call successors, (207) [2021-12-18 04:38:24,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:38:24,219 INFO L93 Difference]: Finished difference Result 29119 states and 40056 transitions. [2021-12-18 04:38:24,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 04:38:24,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 2 states have call successors, (211), 2 states have call predecessors, (211), 2 states have return successors, (207), 2 states have call predecessors, (207), 2 states have call successors, (207) Word has length 28255 [2021-12-18 04:38:24,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:38:24,232 INFO L225 Difference]: With dead ends: 29119 [2021-12-18 04:38:24,232 INFO L226 Difference]: Without dead ends: 0 [2021-12-18 04:38:24,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28255 GetRequests, 28252 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 04:38:24,327 INFO L933 BasicCegarLoop]: 2456 mSDtfsCounter, 491 mSDsluCounter, 4205 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 6661 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 04:38:24,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 6661 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 04:38:24,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-18 04:38:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-18 04:38:24,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 04:38:24,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-18 04:38:24,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28255 [2021-12-18 04:38:24,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:38:24,348 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-18 04:38:24,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 2 states have call successors, (211), 2 states have call predecessors, (211), 2 states have return successors, (207), 2 states have call predecessors, (207), 2 states have call successors, (207) [2021-12-18 04:38:24,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-18 04:38:24,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-18 04:38:24,350 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 04:38:24,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-12-18 04:38:24,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 04:38:24,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Killed by 15