/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:02:43,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:02:43,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:02:43,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 18:02:43,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 18:02:43,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 18:02:43,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 18:02:43,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 18:02:43,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 18:02:43,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 18:02:43,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 18:02:43,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 18:02:43,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:02:43,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:02:43,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:02:43,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:02:43,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:02:43,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:02:43,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:02:43,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:02:43,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:02:43,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:02:43,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:02:43,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:02:43,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 18:02:43,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 18:02:43,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 18:02:43,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 18:02:43,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 18:02:43,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 18:02:43,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 18:02:43,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 18:02:43,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 18:02:43,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 18:02:43,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 18:02:43,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 18:02:43,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 18:02:43,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 18:02:43,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:02:43,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:02:43,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:02:43,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:02:43,280 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:02:43,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:02:43,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:02:43,282 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:02:43,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:02:43,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:02:43,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:02:43,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:02:43,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:02:43,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:02:43,284 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:02:43,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:02:43,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:02:43,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:02:43,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:02:43,285 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:02:43,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:02:43,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:02:43,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:02:43,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:02:43,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:02:43,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:02:43,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:02:43,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:02:43,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:02:43,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:02:43,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:02:43,705 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:02:43,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2021-02-23 18:02:43,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009bcaabc/ff8c6086a46342db9a8ae8b5d838b69d/FLAGe95765f97 [2021-02-23 18:02:44,471 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:02:44,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i [2021-02-23 18:02:44,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009bcaabc/ff8c6086a46342db9a8ae8b5d838b69d/FLAGe95765f97 [2021-02-23 18:02:44,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009bcaabc/ff8c6086a46342db9a8ae8b5d838b69d [2021-02-23 18:02:44,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:02:44,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:02:44,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:02:44,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:02:44,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:02:44,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:02:44" (1/1) ... [2021-02-23 18:02:44,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b87964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:44, skipping insertion in model container [2021-02-23 18:02:44,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:02:44" (1/1) ... [2021-02-23 18:02:44,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:02:44,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:02:45,139 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i[22634,22647] [2021-02-23 18:02:45,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:02:45,202 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:02:45,238 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/dll_of_dll-2.i[22634,22647] [2021-02-23 18:02:45,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:02:45,368 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:02:45,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45 WrapperNode [2021-02-23 18:02:45,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:02:45,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:02:45,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:02:45,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:02:45,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45" (1/1) ... [2021-02-23 18:02:45,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45" (1/1) ... [2021-02-23 18:02:45,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45" (1/1) ... [2021-02-23 18:02:45,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45" (1/1) ... [2021-02-23 18:02:45,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45" (1/1) ... [2021-02-23 18:02:45,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45" (1/1) ... [2021-02-23 18:02:45,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45" (1/1) ... [2021-02-23 18:02:45,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:02:45,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:02:45,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:02:45,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:02:45,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45" (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 [2021-02-23 18:02:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:02:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:02:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-02-23 18:02:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:02:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-23 18:02:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-23 18:02:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-02-23 18:02:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_slave [2021-02-23 18:02:45,668 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_or_die_master [2021-02-23 18:02:45,668 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_slave [2021-02-23 18:02:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_generic [2021-02-23 18:02:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_slave [2021-02-23 18:02:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_slave [2021-02-23 18:02:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_nested_lists [2021-02-23 18:02:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_reinit_nested_lists [2021-02-23 18:02:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy_master [2021-02-23 18:02:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert_master [2021-02-23 18:02:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create_master [2021-02-23 18:02:45,672 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_base [2021-02-23 18:02:45,672 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_full [2021-02-23 18:02:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_dangling [2021-02-23 18:02:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_init [2021-02-23 18:02:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:02:45,676 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:02:45,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:02:45,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 18:02:45,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 18:02:45,677 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:02:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:02:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-23 18:02:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-23 18:02:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-23 18:02:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-23 18:02:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-23 18:02:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-23 18:02:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-23 18:02:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-23 18:02:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-23 18:02:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-23 18:02:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-23 18:02:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-23 18:02:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-23 18:02:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-23 18:02:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-23 18:02:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-23 18:02:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-23 18:02:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-23 18:02:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-23 18:02:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-23 18:02:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-23 18:02:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-23 18:02:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-23 18:02:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-23 18:02:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-23 18:02:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-23 18:02:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-23 18:02:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-23 18:02:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-23 18:02:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-23 18:02:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-23 18:02:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-23 18:02:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-23 18:02:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-23 18:02:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-23 18:02:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-23 18:02:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-23 18:02:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-23 18:02:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-23 18:02:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-23 18:02:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-23 18:02:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-23 18:02:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-23 18:02:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-23 18:02:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-23 18:02:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-23 18:02:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-23 18:02:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-23 18:02:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-23 18:02:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-23 18:02:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-23 18:02:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-23 18:02:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 18:02:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 18:02:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-23 18:02:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 18:02:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-23 18:02:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-23 18:02:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-23 18:02:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-23 18:02:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-23 18:02:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-23 18:02:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-23 18:02:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-23 18:02:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 18:02:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-23 18:02:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-23 18:02:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-23 18:02:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-23 18:02:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-23 18:02:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-23 18:02:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-23 18:02:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-23 18:02:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-23 18:02:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-23 18:02:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-23 18:02:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-23 18:02:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-23 18:02:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-23 18:02:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-23 18:02:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-23 18:02:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-23 18:02:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-23 18:02:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-23 18:02:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-23 18:02:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-23 18:02:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-23 18:02:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-23 18:02:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-23 18:02:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-23 18:02:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-23 18:02:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-23 18:02:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-23 18:02:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-23 18:02:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-23 18:02:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-23 18:02:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-23 18:02:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-23 18:02:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-23 18:02:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-23 18:02:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-23 18:02:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-23 18:02:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-23 18:02:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-23 18:02:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:02:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-02-23 18:02:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_slave [2021-02-23 18:02:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 18:02:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 18:02:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_or_die_master [2021-02-23 18:02:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_slave [2021-02-23 18:02:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 18:02:45,701 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_generic [2021-02-23 18:02:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-02-23 18:02:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-23 18:02:45,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:02:45,708 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_slave [2021-02-23 18:02:45,708 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_slave [2021-02-23 18:02:45,709 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_nested_lists [2021-02-23 18:02:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure dll_reinit_nested_lists [2021-02-23 18:02:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy_master [2021-02-23 18:02:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert_master [2021-02-23 18:02:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create_master [2021-02-23 18:02:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_base [2021-02-23 18:02:45,713 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_full [2021-02-23 18:02:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_dangling [2021-02-23 18:02:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_init [2021-02-23 18:02:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:02:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:02:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:02:45,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:02:45,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:02:45,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:02:46,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:02:46,780 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-02-23 18:02:46,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:02:46 BoogieIcfgContainer [2021-02-23 18:02:46,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:02:46,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:02:46,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:02:46,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:02:46,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:02:44" (1/3) ... [2021-02-23 18:02:46,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b38165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:02:46, skipping insertion in model container [2021-02-23 18:02:46,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:02:45" (2/3) ... [2021-02-23 18:02:46,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b38165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:02:46, skipping insertion in model container [2021-02-23 18:02:46,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:02:46" (3/3) ... [2021-02-23 18:02:46,792 INFO L111 eAbstractionObserver]: Analyzing ICFG dll_of_dll-2.i [2021-02-23 18:02:46,800 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:02:46,806 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:02:46,827 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:02:46,851 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:02:46,852 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:02:46,852 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:02:46,852 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:02:46,852 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:02:46,852 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:02:46,852 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:02:46,853 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:02:46,876 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2021-02-23 18:02:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-02-23 18:02:46,892 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:02:46,893 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] [2021-02-23 18:02:46,894 INFO L428 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:02:46,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:02:46,900 INFO L82 PathProgramCache]: Analyzing trace with hash -307813688, now seen corresponding path program 1 times [2021-02-23 18:02:46,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:02:46,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146626747] [2021-02-23 18:02:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:02:47,007 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:02:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:02:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:02:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:47,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:47,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:47,656 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-02-23 18:02:47,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146626747] [2021-02-23 18:02:47,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:02:47,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 18:02:47,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703644935] [2021-02-23 18:02:47,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 18:02:47,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:02:47,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 18:02:47,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 18:02:47,690 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2021-02-23 18:02:48,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:02:48,339 INFO L93 Difference]: Finished difference Result 573 states and 772 transitions. [2021-02-23 18:02:48,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 18:02:48,341 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2021-02-23 18:02:48,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:02:48,355 INFO L225 Difference]: With dead ends: 573 [2021-02-23 18:02:48,356 INFO L226 Difference]: Without dead ends: 279 [2021-02-23 18:02:48,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:02:48,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-02-23 18:02:48,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 259. [2021-02-23 18:02:48,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2021-02-23 18:02:48,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 288 transitions. [2021-02-23 18:02:48,455 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 288 transitions. Word has length 89 [2021-02-23 18:02:48,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:02:48,456 INFO L480 AbstractCegarLoop]: Abstraction has 259 states and 288 transitions. [2021-02-23 18:02:48,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 18:02:48,457 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 288 transitions. [2021-02-23 18:02:48,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-02-23 18:02:48,461 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:02:48,461 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] [2021-02-23 18:02:48,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:02:48,462 INFO L428 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:02:48,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:02:48,463 INFO L82 PathProgramCache]: Analyzing trace with hash -206201793, now seen corresponding path program 1 times [2021-02-23 18:02:48,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:02:48,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645941360] [2021-02-23 18:02:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:02:48,469 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:02:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:48,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:48,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:48,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:48,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:48,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:48,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:48,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:48,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:48,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:02:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:48,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:02:48,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:02:48,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:48,865 WARN L141 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-02-23 18:02:48,869 WARN L147 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size 17 [2021-02-23 18:02:48,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:48,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:48,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:02:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:48,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:48,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:48,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:48,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:49,112 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-02-23 18:02:49,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645941360] [2021-02-23 18:02:49,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:02:49,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-23 18:02:49,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985605889] [2021-02-23 18:02:49,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 18:02:49,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:02:49,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 18:02:49,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-02-23 18:02:49,118 INFO L87 Difference]: Start difference. First operand 259 states and 288 transitions. Second operand 13 states. [2021-02-23 18:02:51,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:02:51,235 INFO L93 Difference]: Finished difference Result 546 states and 625 transitions. [2021-02-23 18:02:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 18:02:51,236 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2021-02-23 18:02:51,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:02:51,241 INFO L225 Difference]: With dead ends: 546 [2021-02-23 18:02:51,241 INFO L226 Difference]: Without dead ends: 300 [2021-02-23 18:02:51,244 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 [2021-02-23 18:02:51,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-02-23 18:02:51,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 280. [2021-02-23 18:02:51,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2021-02-23 18:02:51,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 311 transitions. [2021-02-23 18:02:51,296 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 311 transitions. Word has length 91 [2021-02-23 18:02:51,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:02:51,297 INFO L480 AbstractCegarLoop]: Abstraction has 280 states and 311 transitions. [2021-02-23 18:02:51,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 18:02:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 311 transitions. [2021-02-23 18:02:51,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-02-23 18:02:51,300 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:02:51,300 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] [2021-02-23 18:02:51,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:02:51,301 INFO L428 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:02:51,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:02:51,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1644354155, now seen corresponding path program 1 times [2021-02-23 18:02:51,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:02:51,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350328415] [2021-02-23 18:02:51,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:02:51,310 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:02:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:51,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:51,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:51,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:51,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:51,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:51,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:51,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:51,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:51,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:51,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:51,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:02:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:51,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:51,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:51,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:51,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:02:51,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:02:51,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:51,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:51,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:51,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:02:52,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:52,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:02:52,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:02:52,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:02:52,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:52,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:52,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:52,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:52,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:02:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:02:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-02-23 18:02:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:02:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:02:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:02:52,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:02:52,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:02:52,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:02:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:02:52,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:52,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:02:52,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:02:52,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:02:52,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:02:52,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:52,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:52,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:02:52,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:02:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:52,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:52,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:02:53,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:02:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:02:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:53,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:02:53,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:02:53,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:02:53,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:02:53,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:02:53,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:02:53,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:02:53,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:02:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:02:53,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:02:53,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:02:53,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:02:53,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:02:53,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:02:53,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-23 18:02:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 38 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-02-23 18:02:54,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350328415] [2021-02-23 18:02:54,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:02:54,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-02-23 18:02:54,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323282143] [2021-02-23 18:02:54,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-02-23 18:02:54,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:02:54,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-02-23 18:02:54,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1540, Unknown=0, NotChecked=0, Total=1640 [2021-02-23 18:02:54,257 INFO L87 Difference]: Start difference. First operand 280 states and 311 transitions. Second operand 41 states. [2021-02-23 18:03:01,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:03:01,520 INFO L93 Difference]: Finished difference Result 578 states and 659 transitions. [2021-02-23 18:03:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-23 18:03:01,521 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 239 [2021-02-23 18:03:01,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:03:01,526 INFO L225 Difference]: With dead ends: 578 [2021-02-23 18:03:01,526 INFO L226 Difference]: Without dead ends: 315 [2021-02-23 18:03:01,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=341, Invalid=5061, Unknown=0, NotChecked=0, Total=5402 [2021-02-23 18:03:01,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-02-23 18:03:01,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 290. [2021-02-23 18:03:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2021-02-23 18:03:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 323 transitions. [2021-02-23 18:03:01,580 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 323 transitions. Word has length 239 [2021-02-23 18:03:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:03:01,580 INFO L480 AbstractCegarLoop]: Abstraction has 290 states and 323 transitions. [2021-02-23 18:03:01,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2021-02-23 18:03:01,581 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 323 transitions. [2021-02-23 18:03:01,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-02-23 18:03:01,584 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:03:01,585 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] [2021-02-23 18:03:01,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:03:01,585 INFO L428 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:03:01,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:03:01,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1985515759, now seen corresponding path program 1 times [2021-02-23 18:03:01,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:03:01,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140128014] [2021-02-23 18:03:01,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:03:01,592 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:03:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:01,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:01,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:01,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:01,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:01,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:01,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:01,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:01,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:01,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:01,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:01,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:03:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:01,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:01,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:01,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:03:02,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:03:02,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:03:02,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:02,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:03:02,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:03:02,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:03:02,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:02,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:02,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:02,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:02,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:03:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:03:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:02,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 18:03:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:03:02,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:03:02,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:02,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:03:02,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:03:02,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:03:02,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:03:02,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:03:02,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:02,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:03:03,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:03:03,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:03,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:03:03,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:03:03,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:03:03,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:03:03,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:03:03,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-02-23 18:03:03,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:03:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:03,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:03,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:03,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:03,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:03,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:03,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:03,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:03,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:03,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:03,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:03:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:03,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:03,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:03,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:03,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:03,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:03,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:03,803 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-02-23 18:03:03,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140128014] [2021-02-23 18:03:03,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:03:03,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-02-23 18:03:03,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690224186] [2021-02-23 18:03:03,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-02-23 18:03:03,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:03:03,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-02-23 18:03:03,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1038, Unknown=0, NotChecked=0, Total=1122 [2021-02-23 18:03:03,807 INFO L87 Difference]: Start difference. First operand 290 states and 323 transitions. Second operand 34 states. [2021-02-23 18:03:05,502 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2021-02-23 18:03:05,718 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-02-23 18:03:05,943 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-02-23 18:03:06,134 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-02-23 18:03:11,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:03:11,082 INFO L93 Difference]: Finished difference Result 592 states and 667 transitions. [2021-02-23 18:03:11,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-02-23 18:03:11,086 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 241 [2021-02-23 18:03:11,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:03:11,094 INFO L225 Difference]: With dead ends: 592 [2021-02-23 18:03:11,094 INFO L226 Difference]: Without dead ends: 321 [2021-02-23 18:03:11,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=270, Invalid=3036, Unknown=0, NotChecked=0, Total=3306 [2021-02-23 18:03:11,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-02-23 18:03:11,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 299. [2021-02-23 18:03:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-02-23 18:03:11,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 333 transitions. [2021-02-23 18:03:11,143 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 333 transitions. Word has length 241 [2021-02-23 18:03:11,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:03:11,144 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 333 transitions. [2021-02-23 18:03:11,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-02-23 18:03:11,144 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 333 transitions. [2021-02-23 18:03:11,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-02-23 18:03:11,148 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:03:11,148 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, 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] [2021-02-23 18:03:11,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:03:11,149 INFO L428 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:03:11,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:03:11,149 INFO L82 PathProgramCache]: Analyzing trace with hash -37011247, now seen corresponding path program 1 times [2021-02-23 18:03:11,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:03:11,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513642362] [2021-02-23 18:03:11,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:03:11,155 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:03:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:11,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:11,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:11,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:11,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:11,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:11,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:03:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:03:11,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:03:11,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:03:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:03:11,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:03:11,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:11,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:03:11,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:03:11,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:11,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:03:11,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 18:03:11,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 18:03:11,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:11,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 18:03:11,999 WARN L141 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-02-23 18:03:12,000 WARN L147 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size 28 [2021-02-23 18:03:12,037 WARN L141 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size [2021-02-23 18:03:12,038 WARN L147 QuantifierPusher]: treesize reduction 10, result has 77.3 percent of original size 34 [2021-02-23 18:03:12,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:03:12,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:03:12,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:03:12,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:03:12,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:03:12,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 159 [2021-02-23 18:03:12,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 18:03:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-02-23 18:03:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:03:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-23 18:03:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:12,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:12,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:12,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:13,006 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-02-23 18:03:13,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513642362] [2021-02-23 18:03:13,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:03:13,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-23 18:03:13,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15990937] [2021-02-23 18:03:13,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-23 18:03:13,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:03:13,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-23 18:03:13,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-23 18:03:13,009 INFO L87 Difference]: Start difference. First operand 299 states and 333 transitions. Second operand 25 states. [2021-02-23 18:03:14,388 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2021-02-23 18:03:14,693 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-02-23 18:03:15,009 WARN L202 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-02-23 18:03:15,260 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-02-23 18:03:18,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:03:18,710 INFO L93 Difference]: Finished difference Result 598 states and 676 transitions. [2021-02-23 18:03:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 18:03:18,711 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 245 [2021-02-23 18:03:18,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:03:18,714 INFO L225 Difference]: With dead ends: 598 [2021-02-23 18:03:18,714 INFO L226 Difference]: Without dead ends: 319 [2021-02-23 18:03:18,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 18:03:18,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-02-23 18:03:18,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 299. [2021-02-23 18:03:18,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-02-23 18:03:18,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 331 transitions. [2021-02-23 18:03:18,755 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 331 transitions. Word has length 245 [2021-02-23 18:03:18,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:03:18,756 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 331 transitions. [2021-02-23 18:03:18,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-23 18:03:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 331 transitions. [2021-02-23 18:03:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-23 18:03:18,759 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:03:18,759 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] [2021-02-23 18:03:18,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 18:03:18,760 INFO L428 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:03:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:03:18,760 INFO L82 PathProgramCache]: Analyzing trace with hash -159569349, now seen corresponding path program 1 times [2021-02-23 18:03:18,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:03:18,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849469043] [2021-02-23 18:03:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:03:18,766 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:03:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:18,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:18,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:18,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:18,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:18,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:18,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:18,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:18,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:18,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:18,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:18,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:18,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:18,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:18,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:18,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:18,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:18,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:18,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:18,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:18,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:03:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:19,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:19,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:19,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:19,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:03:19,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 18:03:19,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:19,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:19,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:03:19,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:03:19,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:19,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:03:19,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 18:03:19,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 18:03:19,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 18:03:19,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-23 18:03:19,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 18:03:19,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:03:19,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:19,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:03:19,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-23 18:03:19,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:19,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:03:20,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:03:20,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 18:03:20,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 487 [2021-02-23 18:03:20,392 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-23 18:03:20,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:03:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:03:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-02-23 18:03:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:03:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:03:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:20,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:20,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:20,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-02-23 18:03:21,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849469043] [2021-02-23 18:03:21,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:03:21,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-23 18:03:21,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392877135] [2021-02-23 18:03:21,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-23 18:03:21,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:03:21,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-23 18:03:21,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-02-23 18:03:21,040 INFO L87 Difference]: Start difference. First operand 299 states and 331 transitions. Second operand 25 states. [2021-02-23 18:03:21,531 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-23 18:03:21,916 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-23 18:03:23,097 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-02-23 18:03:23,743 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-02-23 18:03:24,485 WARN L202 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-02-23 18:03:25,095 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-02-23 18:03:28,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:03:28,657 INFO L93 Difference]: Finished difference Result 596 states and 661 transitions. [2021-02-23 18:03:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 18:03:28,658 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 243 [2021-02-23 18:03:28,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:03:28,661 INFO L225 Difference]: With dead ends: 596 [2021-02-23 18:03:28,661 INFO L226 Difference]: Without dead ends: 319 [2021-02-23 18:03:28,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=128, Invalid=1132, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 18:03:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-02-23 18:03:28,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 299. [2021-02-23 18:03:28,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2021-02-23 18:03:28,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 329 transitions. [2021-02-23 18:03:28,703 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 329 transitions. Word has length 243 [2021-02-23 18:03:28,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:03:28,704 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 329 transitions. [2021-02-23 18:03:28,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-23 18:03:28,704 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 329 transitions. [2021-02-23 18:03:28,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-02-23 18:03:28,707 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:03:28,708 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] [2021-02-23 18:03:28,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 18:03:28,708 INFO L428 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:03:28,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:03:28,709 INFO L82 PathProgramCache]: Analyzing trace with hash -279275528, now seen corresponding path program 1 times [2021-02-23 18:03:28,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:03:28,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057347569] [2021-02-23 18:03:28,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:03:28,714 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:03:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:28,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:28,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:28,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:28,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:28,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:28,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:28,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:28,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:28,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:28,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:28,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:28,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:28,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:28,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:28,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:28,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:28,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:28,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:28,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:28,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:03:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:29,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:29,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:29,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:29,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:29,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:03:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:03:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 18:03:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:03:29,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:29,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:03:29,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:03:29,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:03:29,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:29,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:29,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:29,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:29,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:03:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:29,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:29,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:29,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:30,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:30,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:30,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:30,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:30,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:30,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:03:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:30,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:30,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:30,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:30,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:30,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:30,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:30,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:30,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:30,307 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-02-23 18:03:30,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1057347569] [2021-02-23 18:03:30,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:03:30,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-02-23 18:03:30,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490893193] [2021-02-23 18:03:30,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-23 18:03:30,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:03:30,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-23 18:03:30,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2021-02-23 18:03:30,310 INFO L87 Difference]: Start difference. First operand 299 states and 329 transitions. Second operand 24 states. [2021-02-23 18:03:34,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:03:34,454 INFO L93 Difference]: Finished difference Result 531 states and 594 transitions. [2021-02-23 18:03:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-02-23 18:03:34,455 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 242 [2021-02-23 18:03:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:03:34,459 INFO L225 Difference]: With dead ends: 531 [2021-02-23 18:03:34,459 INFO L226 Difference]: Without dead ends: 421 [2021-02-23 18:03:34,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=169, Invalid=1811, Unknown=0, NotChecked=0, Total=1980 [2021-02-23 18:03:34,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-02-23 18:03:34,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 336. [2021-02-23 18:03:34,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2021-02-23 18:03:34,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 371 transitions. [2021-02-23 18:03:34,508 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 371 transitions. Word has length 242 [2021-02-23 18:03:34,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:03:34,508 INFO L480 AbstractCegarLoop]: Abstraction has 336 states and 371 transitions. [2021-02-23 18:03:34,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-23 18:03:34,509 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 371 transitions. [2021-02-23 18:03:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-02-23 18:03:34,510 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:03:34,510 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] [2021-02-23 18:03:34,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 18:03:34,511 INFO L428 AbstractCegarLoop]: === Iteration 8 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:03:34,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:03:34,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1639303553, now seen corresponding path program 1 times [2021-02-23 18:03:34,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:03:34,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870857099] [2021-02-23 18:03:34,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:03:34,516 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:03:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:34,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:34,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:34,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:34,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:34,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:34,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:34,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:34,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:35,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:35,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:35,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:35,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:03:35,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:35,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:35,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-23 18:03:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:35,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:35,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:35,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:35,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:35,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:03:35,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 18:03:35,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 18:03:35,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:35,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:03:35,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:35,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:03:35,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 18:03:35,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:35,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:03:35,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:03:35,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:03:35,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:35,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 18:03:35,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:03:36,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:03:36,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-23 18:03:36,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-23 18:03:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:36,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:36,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-23 18:03:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:36,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:36,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:36,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-02-23 18:03:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:36,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:36,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:03:36,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 18:03:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:03:36,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 18:03:36,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 18:03:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:36,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:36,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:03:36,584 WARN L141 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size [2021-02-23 18:03:36,586 WARN L147 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size 35 [2021-02-23 18:03:36,672 WARN L141 QuantifierPusher]: treesize reduction 48, result has 51.5 percent of original size [2021-02-23 18:03:36,674 WARN L147 QuantifierPusher]: treesize reduction 48, result has 51.5 percent of original size 51 [2021-02-23 18:03:36,784 WARN L141 QuantifierPusher]: treesize reduction 48, result has 54.7 percent of original size [2021-02-23 18:03:36,787 WARN L147 QuantifierPusher]: treesize reduction 48, result has 54.7 percent of original size 58 [2021-02-23 18:03:36,910 WARN L141 QuantifierPusher]: treesize reduction 111, result has 39.7 percent of original size [2021-02-23 18:03:36,912 WARN L147 QuantifierPusher]: treesize reduction 111, result has 39.7 percent of original size 73 [2021-02-23 18:03:37,071 WARN L141 QuantifierPusher]: treesize reduction 137, result has 42.7 percent of original size [2021-02-23 18:03:37,074 WARN L147 QuantifierPusher]: treesize reduction 137, result has 42.7 percent of original size 102 [2021-02-23 18:03:37,274 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-02-23 18:03:37,280 WARN L141 QuantifierPusher]: treesize reduction 137, result has 46.9 percent of original size [2021-02-23 18:03:37,285 WARN L147 QuantifierPusher]: treesize reduction 137, result has 46.9 percent of original size 121 [2021-02-23 18:03:37,615 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-02-23 18:03:37,619 WARN L141 QuantifierPusher]: treesize reduction 101, result has 39.9 percent of original size [2021-02-23 18:03:37,621 WARN L147 QuantifierPusher]: treesize reduction 101, result has 39.9 percent of original size 67 [2021-02-23 18:03:37,757 WARN L141 QuantifierPusher]: treesize reduction 48, result has 56.4 percent of original size [2021-02-23 18:03:37,758 WARN L147 QuantifierPusher]: treesize reduction 48, result has 56.4 percent of original size 62 [2021-02-23 18:03:37,881 WARN L141 QuantifierPusher]: treesize reduction 51, result has 56.0 percent of original size [2021-02-23 18:03:37,882 WARN L147 QuantifierPusher]: treesize reduction 51, result has 56.0 percent of original size 65 [2021-02-23 18:03:37,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:37,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 18:03:38,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-23 18:03:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:38,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:38,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 18:03:38,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:38,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 18:03:38,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:38,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 18:03:38,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:38,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 18:03:38,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:38,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 18:03:38,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:38,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-02-23 18:03:38,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-02-23 18:03:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:03:38,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:38,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-23 18:03:39,350 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-23 18:03:39,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:39,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-23 18:03:39,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:39,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-23 18:03:39,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:03:39,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177160 [2021-02-23 18:03:39,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:03:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:06:32,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:06:32,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:06:32,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:06:32,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 18:06:32,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:06:32,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36