/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:13:19,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:13:19,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:13:19,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 05:13:19,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 05:13:19,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 05:13:19,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 05:13:19,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 05:13:19,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 05:13:19,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 05:13:19,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 05:13:19,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 05:13:19,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:13:19,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:13:19,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:13:19,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:13:19,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:13:19,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:13:19,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:13:19,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:13:19,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:13:19,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:13:19,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:13:19,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:13:19,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 05:13:19,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 05:13:19,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 05:13:19,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 05:13:19,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 05:13:19,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 05:13:19,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 05:13:19,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 05:13:19,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 05:13:19,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 05:13:19,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 05:13:19,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 05:13:19,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 05:13:19,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 05:13:19,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:13:19,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:13:19,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:13:19,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:13:19,896 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:13:19,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:13:19,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:13:19,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:13:19,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:13:19,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:13:19,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:13:19,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:13:19,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:13:19,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:13:19,902 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:13:19,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:13:19,903 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:13:19,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:13:19,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:13:19,903 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:13:19,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:13:19,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:13:19,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:13:19,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:13:19,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:13:19,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:13:19,906 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:13:20,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:13:20,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:13:20,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:13:20,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:13:20,363 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:13:20,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-11-07 05:13:20,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149d36777/2aa738cb592147038de88bfc5c0ed09e/FLAG104ff8ede [2020-11-07 05:13:21,217 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:13:21,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2020-11-07 05:13:21,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149d36777/2aa738cb592147038de88bfc5c0ed09e/FLAG104ff8ede [2020-11-07 05:13:21,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149d36777/2aa738cb592147038de88bfc5c0ed09e [2020-11-07 05:13:21,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:13:21,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:13:21,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:13:21,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:13:21,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:13:21,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:13:21" (1/1) ... [2020-11-07 05:13:21,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1479b3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:21, skipping insertion in model container [2020-11-07 05:13:21,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:13:21" (1/1) ... [2020-11-07 05:13:21,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:13:21,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:13:22,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:13:22,103 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:13:22,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:13:22,276 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:13:22,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22 WrapperNode [2020-11-07 05:13:22,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:13:22,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:13:22,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:13:22,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:13:22,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22" (1/1) ... [2020-11-07 05:13:22,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22" (1/1) ... [2020-11-07 05:13:22,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22" (1/1) ... [2020-11-07 05:13:22,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22" (1/1) ... [2020-11-07 05:13:22,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22" (1/1) ... [2020-11-07 05:13:22,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22" (1/1) ... [2020-11-07 05:13:22,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22" (1/1) ... [2020-11-07 05:13:22,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:13:22,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:13:22,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:13:22,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:13:22,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:13:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:13:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:13:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-11-07 05:13:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:13:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 05:13:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 05:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-11-07 05:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2020-11-07 05:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2020-11-07 05:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2020-11-07 05:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2020-11-07 05:13:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2020-11-07 05:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2020-11-07 05:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2020-11-07 05:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2020-11-07 05:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2020-11-07 05:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2020-11-07 05:13:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2020-11-07 05:13:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2020-11-07 05:13:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2020-11-07 05:13:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2020-11-07 05:13:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2020-11-07 05:13:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:13:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:13:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:13:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 05:13:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 05:13:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:13:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:13:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 05:13:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 05:13:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 05:13:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 05:13:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 05:13:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 05:13:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 05:13:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 05:13:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 05:13:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 05:13:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 05:13:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 05:13:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 05:13:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 05:13:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 05:13:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 05:13:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 05:13:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 05:13:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 05:13:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 05:13:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 05:13:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 05:13:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 05:13:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 05:13:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 05:13:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 05:13:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 05:13:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 05:13:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 05:13:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 05:13:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 05:13:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 05:13:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 05:13:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 05:13:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 05:13:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 05:13:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 05:13:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 05:13:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 05:13:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 05:13:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 05:13:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 05:13:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 05:13:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 05:13:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 05:13:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 05:13:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 05:13:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 05:13:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 05:13:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 05:13:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 05:13:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 05:13:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 05:13:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 05:13:22,496 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 05:13:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 05:13:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 05:13:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 05:13:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 05:13:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 05:13:22,497 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-07 05:13:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 05:13:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-07 05:13:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 05:13:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:13:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-07 05:13:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 05:13:22,498 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 05:13:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 05:13:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 05:13:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 05:13:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 05:13:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 05:13:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 05:13:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 05:13:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 05:13:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 05:13:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 05:13:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 05:13:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 05:13:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 05:13:22,500 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 05:13:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 05:13:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 05:13:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 05:13:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 05:13:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 05:13:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 05:13:22,501 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 05:13:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 05:13:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 05:13:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 05:13:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 05:13:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 05:13:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 05:13:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 05:13:22,502 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 05:13:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 05:13:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 05:13:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 05:13:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 05:13:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 05:13:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 05:13:22,503 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 05:13:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:13:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-11-07 05:13:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2020-11-07 05:13:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 05:13:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 05:13:22,504 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2020-11-07 05:13:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2020-11-07 05:13:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 05:13:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2020-11-07 05:13:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-11-07 05:13:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-07 05:13:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:13:22,505 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2020-11-07 05:13:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2020-11-07 05:13:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2020-11-07 05:13:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2020-11-07 05:13:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2020-11-07 05:13:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2020-11-07 05:13:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2020-11-07 05:13:22,506 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2020-11-07 05:13:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2020-11-07 05:13:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2020-11-07 05:13:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2020-11-07 05:13:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:13:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:13:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:13:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:13:22,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:13:22,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:13:23,597 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:13:23,598 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-11-07 05:13:23,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:13:23 BoogieIcfgContainer [2020-11-07 05:13:23,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:13:23,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:13:23,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:13:23,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:13:23,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:13:21" (1/3) ... [2020-11-07 05:13:23,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10beeff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:13:23, skipping insertion in model container [2020-11-07 05:13:23,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:13:22" (2/3) ... [2020-11-07 05:13:23,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10beeff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:13:23, skipping insertion in model container [2020-11-07 05:13:23,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:13:23" (3/3) ... [2020-11-07 05:13:23,612 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2020-11-07 05:13:23,629 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:13:23,634 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:13:23,648 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:13:23,675 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:13:23,675 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:13:23,675 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:13:23,675 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:13:23,675 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:13:23,676 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:13:23,676 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:13:23,676 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:13:23,712 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2020-11-07 05:13:23,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-11-07 05:13:23,728 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:23,729 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-07 05:13:23,730 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:23,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:23,738 INFO L82 PathProgramCache]: Analyzing trace with hash 460633146, now seen corresponding path program 1 times [2020-11-07 05:13:23,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:23,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365211143] [2020-11-07 05:13:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-07 05:13:24,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365211143] [2020-11-07 05:13:24,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:13:24,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 05:13:24,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545296661] [2020-11-07 05:13:24,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 05:13:24,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:24,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 05:13:24,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 05:13:24,459 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2020-11-07 05:13:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:25,230 INFO L93 Difference]: Finished difference Result 580 states and 782 transitions. [2020-11-07 05:13:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 05:13:25,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2020-11-07 05:13:25,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:25,249 INFO L225 Difference]: With dead ends: 580 [2020-11-07 05:13:25,249 INFO L226 Difference]: Without dead ends: 281 [2020-11-07 05:13:25,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:13:25,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-11-07 05:13:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2020-11-07 05:13:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-07 05:13:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 290 transitions. [2020-11-07 05:13:25,365 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 290 transitions. Word has length 91 [2020-11-07 05:13:25,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:25,366 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 290 transitions. [2020-11-07 05:13:25,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 05:13:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 290 transitions. [2020-11-07 05:13:25,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-07 05:13:25,370 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:25,371 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-07 05:13:25,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:13:25,371 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:25,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:25,372 INFO L82 PathProgramCache]: Analyzing trace with hash -409331855, now seen corresponding path program 1 times [2020-11-07 05:13:25,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:25,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804438826] [2020-11-07 05:13:25,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:25,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:26,042 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-11-07 05:13:26,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804438826] [2020-11-07 05:13:26,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:26,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-07 05:13:26,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312996101] [2020-11-07 05:13:26,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 05:13:26,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:26,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 05:13:26,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:13:26,047 INFO L87 Difference]: Start difference. First operand 261 states and 290 transitions. Second operand 13 states. [2020-11-07 05:13:28,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:28,475 INFO L93 Difference]: Finished difference Result 550 states and 629 transitions. [2020-11-07 05:13:28,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:13:28,477 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2020-11-07 05:13:28,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:28,489 INFO L225 Difference]: With dead ends: 550 [2020-11-07 05:13:28,489 INFO L226 Difference]: Without dead ends: 302 [2020-11-07 05:13:28,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-11-07 05:13:28,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-11-07 05:13:28,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 282. [2020-11-07 05:13:28,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-07 05:13:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 313 transitions. [2020-11-07 05:13:28,579 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 313 transitions. Word has length 93 [2020-11-07 05:13:28,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:28,580 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 313 transitions. [2020-11-07 05:13:28,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 05:13:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 313 transitions. [2020-11-07 05:13:28,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-07 05:13:28,585 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:28,586 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 05:13:28,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:13:28,586 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:28,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:28,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1433981389, now seen corresponding path program 1 times [2020-11-07 05:13:28,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:28,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032086819] [2020-11-07 05:13:28,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:28,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:28,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-11-07 05:13:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:29,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:30,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:30,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:30,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:30,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:30,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:30,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:30,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:30,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:30,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 141 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-11-07 05:13:31,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032086819] [2020-11-07 05:13:31,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:31,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-11-07 05:13:31,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182758330] [2020-11-07 05:13:31,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-11-07 05:13:31,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:31,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-11-07 05:13:31,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1392, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 05:13:31,914 INFO L87 Difference]: Start difference. First operand 282 states and 313 transitions. Second operand 39 states. [2020-11-07 05:13:40,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:40,574 INFO L93 Difference]: Finished difference Result 582 states and 663 transitions. [2020-11-07 05:13:40,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-07 05:13:40,575 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 241 [2020-11-07 05:13:40,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:40,585 INFO L225 Difference]: With dead ends: 582 [2020-11-07 05:13:40,586 INFO L226 Difference]: Without dead ends: 317 [2020-11-07 05:13:40,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=327, Invalid=4785, Unknown=0, NotChecked=0, Total=5112 [2020-11-07 05:13:40,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-11-07 05:13:40,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 292. [2020-11-07 05:13:40,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-11-07 05:13:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 325 transitions. [2020-11-07 05:13:40,651 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 325 transitions. Word has length 241 [2020-11-07 05:13:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:40,652 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 325 transitions. [2020-11-07 05:13:40,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-11-07 05:13:40,652 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 325 transitions. [2020-11-07 05:13:40,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-11-07 05:13:40,655 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:40,656 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-07 05:13:40,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:13:40,656 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:40,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:40,657 INFO L82 PathProgramCache]: Analyzing trace with hash 820570067, now seen corresponding path program 1 times [2020-11-07 05:13:40,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:40,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552710767] [2020-11-07 05:13:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:40,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:40,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:41,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 05:13:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:13:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:42,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 38 proven. 38 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2020-11-07 05:13:43,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552710767] [2020-11-07 05:13:43,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:43,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-11-07 05:13:43,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382534414] [2020-11-07 05:13:43,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-11-07 05:13:43,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:43,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-11-07 05:13:43,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2020-11-07 05:13:43,305 INFO L87 Difference]: Start difference. First operand 292 states and 325 transitions. Second operand 32 states. [2020-11-07 05:13:44,712 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-11-07 05:13:44,946 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-11-07 05:13:45,392 WARN L194 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-07 05:13:45,643 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-11-07 05:13:45,851 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-11-07 05:13:51,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:13:51,188 INFO L93 Difference]: Finished difference Result 596 states and 671 transitions. [2020-11-07 05:13:51,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-07 05:13:51,188 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 243 [2020-11-07 05:13:51,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:13:51,193 INFO L225 Difference]: With dead ends: 596 [2020-11-07 05:13:51,193 INFO L226 Difference]: Without dead ends: 323 [2020-11-07 05:13:51,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=256, Invalid=2824, Unknown=0, NotChecked=0, Total=3080 [2020-11-07 05:13:51,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-11-07 05:13:51,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 301. [2020-11-07 05:13:51,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-07 05:13:51,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 335 transitions. [2020-11-07 05:13:51,243 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 335 transitions. Word has length 243 [2020-11-07 05:13:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:13:51,244 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 335 transitions. [2020-11-07 05:13:51,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-11-07 05:13:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 335 transitions. [2020-11-07 05:13:51,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-11-07 05:13:51,249 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:13:51,250 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-07 05:13:51,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:13:51,250 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:13:51,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:13:51,251 INFO L82 PathProgramCache]: Analyzing trace with hash -863754643, now seen corresponding path program 1 times [2020-11-07 05:13:51,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:13:51,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718591497] [2020-11-07 05:13:51,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:13:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:51,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:51,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:13:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:51,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:51,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:51,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,919 WARN L194 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-07 05:13:52,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 05:13:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:52,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 05:13:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 05:13:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:13:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:13:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:13:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:13:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:13:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:13:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 25 proven. 40 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2020-11-07 05:13:53,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718591497] [2020-11-07 05:13:53,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:13:53,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-11-07 05:13:53,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911002793] [2020-11-07 05:13:53,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-07 05:13:53,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:13:53,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-07 05:13:53,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2020-11-07 05:13:53,811 INFO L87 Difference]: Start difference. First operand 301 states and 335 transitions. Second operand 23 states. [2020-11-07 05:13:54,335 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-11-07 05:13:54,759 WARN L194 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-11-07 05:13:56,080 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2020-11-07 05:13:56,862 WARN L194 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-11-07 05:13:57,755 WARN L194 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-11-07 05:13:58,484 WARN L194 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2020-11-07 05:14:03,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:14:03,014 INFO L93 Difference]: Finished difference Result 600 states and 669 transitions. [2020-11-07 05:14:03,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 05:14:03,016 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 245 [2020-11-07 05:14:03,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:14:03,020 INFO L225 Difference]: With dead ends: 600 [2020-11-07 05:14:03,020 INFO L226 Difference]: Without dead ends: 321 [2020-11-07 05:14:03,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=117, Invalid=1005, Unknown=0, NotChecked=0, Total=1122 [2020-11-07 05:14:03,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-07 05:14:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 301. [2020-11-07 05:14:03,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-11-07 05:14:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 333 transitions. [2020-11-07 05:14:03,069 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 333 transitions. Word has length 245 [2020-11-07 05:14:03,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:14:03,070 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 333 transitions. [2020-11-07 05:14:03,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-07 05:14:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 333 transitions. [2020-11-07 05:14:03,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-11-07 05:14:03,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:14:03,074 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-07 05:14:03,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 05:14:03,075 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:14:03,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:14:03,075 INFO L82 PathProgramCache]: Analyzing trace with hash 791701158, now seen corresponding path program 1 times [2020-11-07 05:14:03,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:14:03,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802787988] [2020-11-07 05:14:03,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:14:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:14:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:14:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:14:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:14:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:14:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:03,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 05:14:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 05:14:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:14:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:14:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:04,736 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2020-11-07 05:14:04,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802787988] [2020-11-07 05:14:04,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:14:04,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-11-07 05:14:04,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562038608] [2020-11-07 05:14:04,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-07 05:14:04,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:14:04,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-07 05:14:04,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-11-07 05:14:04,739 INFO L87 Difference]: Start difference. First operand 301 states and 333 transitions. Second operand 24 states. [2020-11-07 05:14:09,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:14:09,882 INFO L93 Difference]: Finished difference Result 535 states and 600 transitions. [2020-11-07 05:14:09,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-07 05:14:09,883 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 244 [2020-11-07 05:14:09,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:14:09,888 INFO L225 Difference]: With dead ends: 535 [2020-11-07 05:14:09,888 INFO L226 Difference]: Without dead ends: 423 [2020-11-07 05:14:09,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2020-11-07 05:14:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-11-07 05:14:09,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 338. [2020-11-07 05:14:09,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-07 05:14:09,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 375 transitions. [2020-11-07 05:14:09,938 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 375 transitions. Word has length 244 [2020-11-07 05:14:09,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:14:09,939 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 375 transitions. [2020-11-07 05:14:09,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-07 05:14:09,939 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 375 transitions. [2020-11-07 05:14:09,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-11-07 05:14:09,943 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:14:09,943 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:14:09,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 05:14:09,944 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:14:09,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:14:09,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1636205355, now seen corresponding path program 1 times [2020-11-07 05:14:09,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:14:09,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259042157] [2020-11-07 05:14:09,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:14:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:14:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:14:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:14:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:14:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-07 05:14:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-11-07 05:14:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 05:14:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:14:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:10,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:11,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:11,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-07 05:14:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:11,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:11,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:11,672 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 95 proven. 23 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-11-07 05:14:11,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259042157] [2020-11-07 05:14:11,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:14:11,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-11-07 05:14:11,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204976356] [2020-11-07 05:14:11,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 05:14:11,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:14:11,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 05:14:11,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-07 05:14:11,676 INFO L87 Difference]: Start difference. First operand 338 states and 375 transitions. Second operand 17 states. [2020-11-07 05:14:12,980 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2020-11-07 05:14:13,313 WARN L194 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-11-07 05:14:13,712 WARN L194 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-11-07 05:14:13,999 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-11-07 05:14:17,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:14:17,156 INFO L93 Difference]: Finished difference Result 676 states and 760 transitions. [2020-11-07 05:14:17,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 05:14:17,157 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 250 [2020-11-07 05:14:17,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:14:17,161 INFO L225 Difference]: With dead ends: 676 [2020-11-07 05:14:17,161 INFO L226 Difference]: Without dead ends: 358 [2020-11-07 05:14:17,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2020-11-07 05:14:17,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-11-07 05:14:17,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 338. [2020-11-07 05:14:17,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-07 05:14:17,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 373 transitions. [2020-11-07 05:14:17,213 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 373 transitions. Word has length 250 [2020-11-07 05:14:17,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:14:17,214 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 373 transitions. [2020-11-07 05:14:17,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 05:14:17,215 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 373 transitions. [2020-11-07 05:14:17,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-11-07 05:14:17,218 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:14:17,219 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-11-07 05:14:17,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 05:14:17,219 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:14:17,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:14:17,220 INFO L82 PathProgramCache]: Analyzing trace with hash 554881775, now seen corresponding path program 1 times [2020-11-07 05:14:17,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:14:17,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [511083396] [2020-11-07 05:14:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:14:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:17,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:17,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:14:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:18,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:18,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:14:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:18,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:19,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:19,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 05:14:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:19,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:20,635 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 23 [2020-11-07 05:14:21,207 WARN L194 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 25 [2020-11-07 05:14:23,116 WARN L194 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 19 [2020-11-07 05:14:24,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:14:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:24,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:24,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:24,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 05:14:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:25,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:25,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:25,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 05:14:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:26,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 05:14:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:26,720 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-11-07 05:14:27,000 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-07 05:14:27,294 WARN L194 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-11-07 05:14:27,643 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-11-07 05:14:27,911 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-11-07 05:14:28,244 WARN L194 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-11-07 05:14:28,518 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2020-11-07 05:14:28,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-07 05:14:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:29,527 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2020-11-07 05:14:29,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-07 05:14:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:14:35,509 WARN L194 SmtUtils]: Spent 4.43 s on a formula simplification. DAG size of input: 151 DAG size of output: 138 [2020-11-07 05:14:35,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:14:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:16:33,284 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 218 DAG size of output: 47