/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:25:42,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:25:42,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:25:42,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:25:42,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:25:42,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:25:42,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:25:42,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:25:42,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:25:42,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:25:42,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:25:42,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:25:42,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:25:42,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:25:43,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:25:43,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:25:43,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:25:43,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:25:43,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:25:43,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:25:43,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:25:43,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:25:43,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:25:43,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:25:43,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:25:43,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:25:43,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:25:43,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:25:43,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:25:43,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:25:43,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:25:43,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:25:43,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:25:43,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:25:43,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:25:43,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:25:43,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:25:43,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:25:43,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:25:43,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:25:43,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:25:43,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:25:43,108 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:25:43,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:25:43,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:25:43,115 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:25:43,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:25:43,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:25:43,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:25:43,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:25:43,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:25:43,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:25:43,117 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:25:43,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:25:43,118 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:25:43,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:25:43,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:25:43,119 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:25:43,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:25:43,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:25:43,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:25:43,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:25:43,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:25:43,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:25:43,120 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:25:43,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:25:43,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:25:43,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:25:43,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:25:43,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:25:43,586 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:25:43,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-01-2.i [2021-02-24 04:25:43,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06bbb60d7/34945b57b4844eb0a60a8e58c8d20f33/FLAGd4a6fe03d [2021-02-24 04:25:44,444 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:25:44,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i [2021-02-24 04:25:44,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06bbb60d7/34945b57b4844eb0a60a8e58c8d20f33/FLAGd4a6fe03d [2021-02-24 04:25:44,747 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06bbb60d7/34945b57b4844eb0a60a8e58c8d20f33 [2021-02-24 04:25:44,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:25:44,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:25:44,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:44,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:25:44,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:25:44,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:44" (1/1) ... [2021-02-24 04:25:44,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ea04f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:44, skipping insertion in model container [2021-02-24 04:25:44,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:25:44" (1/1) ... [2021-02-24 04:25:44,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:25:44,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:25:45,221 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22034,22047] [2021-02-24 04:25:45,240 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22307,22320] [2021-02-24 04:25:45,246 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22516,22529] [2021-02-24 04:25:45,250 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22586,22599] [2021-02-24 04:25:45,255 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22853,22866] [2021-02-24 04:25:45,257 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22961,22974] [2021-02-24 04:25:45,263 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23192,23205] [2021-02-24 04:25:45,266 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23272,23285] [2021-02-24 04:25:45,268 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23351,23364] [2021-02-24 04:25:45,271 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23484,23497] [2021-02-24 04:25:45,275 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23662,23675] [2021-02-24 04:25:45,278 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23740,23753] [2021-02-24 04:25:45,280 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23817,23830] [2021-02-24 04:25:45,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:45,308 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:25:45,346 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22034,22047] [2021-02-24 04:25:45,350 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22307,22320] [2021-02-24 04:25:45,352 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22516,22529] [2021-02-24 04:25:45,353 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22586,22599] [2021-02-24 04:25:45,356 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22853,22866] [2021-02-24 04:25:45,357 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[22961,22974] [2021-02-24 04:25:45,359 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23192,23205] [2021-02-24 04:25:45,360 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23272,23285] [2021-02-24 04:25:45,362 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23351,23364] [2021-02-24 04:25:45,363 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23484,23497] [2021-02-24 04:25:45,365 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23662,23675] [2021-02-24 04:25:45,366 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23740,23753] [2021-02-24 04:25:45,367 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-01-2.i[23817,23830] [2021-02-24 04:25:45,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:25:45,469 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:25:45,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45 WrapperNode [2021-02-24 04:25:45,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:25:45,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:25:45,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:25:45,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:25:45,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45" (1/1) ... [2021-02-24 04:25:45,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45" (1/1) ... [2021-02-24 04:25:45,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45" (1/1) ... [2021-02-24 04:25:45,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45" (1/1) ... [2021-02-24 04:25:45,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45" (1/1) ... [2021-02-24 04:25:45,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45" (1/1) ... [2021-02-24 04:25:45,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45" (1/1) ... [2021-02-24 04:25:45,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:25:45,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:25:45,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:25:45,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:25:45,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45" (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 [2021-02-24 04:25:45,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:25:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:25:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:25:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:25:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-24 04:25:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-24 04:25:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-24 04:25:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-24 04:25:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-24 04:25:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-24 04:25:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-24 04:25:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-24 04:25:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-24 04:25:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-24 04:25:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-24 04:25:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-24 04:25:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-24 04:25:45,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-24 04:25:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-24 04:25:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-24 04:25:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-24 04:25:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-24 04:25:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-24 04:25:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-24 04:25:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-24 04:25:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-24 04:25:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-24 04:25:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-24 04:25:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-24 04:25:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-24 04:25:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-24 04:25:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-24 04:25:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-24 04:25:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-24 04:25:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-24 04:25:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-24 04:25:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-24 04:25:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-24 04:25:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-24 04:25:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-24 04:25:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-24 04:25:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-24 04:25:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-24 04:25:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-24 04:25:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-24 04:25:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-24 04:25:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-24 04:25:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-24 04:25:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-24 04:25:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-24 04:25:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-24 04:25:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-24 04:25:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-24 04:25:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-24 04:25:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:25:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-24 04:25:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-24 04:25:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-24 04:25:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-24 04:25:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-24 04:25:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-24 04:25:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-24 04:25:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-24 04:25:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:25:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-24 04:25:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-24 04:25:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-24 04:25:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-24 04:25:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-24 04:25:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-24 04:25:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-24 04:25:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-24 04:25:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-24 04:25:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-24 04:25:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-24 04:25:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-24 04:25:45,742 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-24 04:25:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-24 04:25:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-24 04:25:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-24 04:25:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-24 04:25:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-24 04:25:45,743 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-24 04:25:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-24 04:25:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-24 04:25:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-24 04:25:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-24 04:25:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-24 04:25:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-24 04:25:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-24 04:25:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-24 04:25:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-24 04:25:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-24 04:25:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-24 04:25:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-24 04:25:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-24 04:25:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-24 04:25:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-24 04:25:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-24 04:25:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-24 04:25:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-24 04:25:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-24 04:25:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-24 04:25:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-24 04:25:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-24 04:25:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-24 04:25:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-24 04:25:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:25:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:25:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:25:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:25:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:25:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:25:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:25:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:25:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-24 04:25:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-24 04:25:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:25:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:25:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:25:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:25:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:25:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:25:46,680 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:25:46,680 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-02-24 04:25:46,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:46 BoogieIcfgContainer [2021-02-24 04:25:46,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:25:46,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:25:46,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:25:46,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:25:46,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:25:44" (1/3) ... [2021-02-24 04:25:46,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43273aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:46, skipping insertion in model container [2021-02-24 04:25:46,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:25:45" (2/3) ... [2021-02-24 04:25:46,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43273aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:25:46, skipping insertion in model container [2021-02-24 04:25:46,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:25:46" (3/3) ... [2021-02-24 04:25:46,699 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2021-02-24 04:25:46,708 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:25:46,716 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2021-02-24 04:25:46,738 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-02-24 04:25:46,780 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:25:46,780 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:25:46,780 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:25:46,780 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:25:46,781 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:25:46,781 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:25:46,781 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:25:46,781 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:25:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2021-02-24 04:25:46,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-24 04:25:46,848 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:46,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:46,849 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:46,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:46,860 INFO L82 PathProgramCache]: Analyzing trace with hash 686903667, now seen corresponding path program 1 times [2021-02-24 04:25:46,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:46,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252524728] [2021-02-24 04:25:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:46,987 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:47,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:47,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:47,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:47,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:47,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:47,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:47,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:47,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:47,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:47,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:47,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:47,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:47,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252524728] [2021-02-24 04:25:47,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:47,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:25:47,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608230180] [2021-02-24 04:25:47,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:25:47,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:47,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:25:47,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:25:47,269 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 5 states. [2021-02-24 04:25:47,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:47,782 INFO L93 Difference]: Finished difference Result 377 states and 495 transitions. [2021-02-24 04:25:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:25:47,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2021-02-24 04:25:47,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:47,796 INFO L225 Difference]: With dead ends: 377 [2021-02-24 04:25:47,797 INFO L226 Difference]: Without dead ends: 198 [2021-02-24 04:25:47,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:25:47,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-02-24 04:25:47,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 168. [2021-02-24 04:25:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2021-02-24 04:25:47,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 178 transitions. [2021-02-24 04:25:47,872 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 178 transitions. Word has length 16 [2021-02-24 04:25:47,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:47,872 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 178 transitions. [2021-02-24 04:25:47,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:25:47,873 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 178 transitions. [2021-02-24 04:25:47,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-24 04:25:47,874 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:47,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:47,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:25:47,875 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:47,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:47,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1562484955, now seen corresponding path program 1 times [2021-02-24 04:25:47,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:47,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547654305] [2021-02-24 04:25:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:47,888 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:47,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:47,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:47,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:47,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:47,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:48,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:48,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:48,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547654305] [2021-02-24 04:25:48,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:48,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:25:48,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639369477] [2021-02-24 04:25:48,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:25:48,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:48,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:25:48,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:48,037 INFO L87 Difference]: Start difference. First operand 168 states and 178 transitions. Second operand 4 states. [2021-02-24 04:25:48,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:48,336 INFO L93 Difference]: Finished difference Result 174 states and 184 transitions. [2021-02-24 04:25:48,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:25:48,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2021-02-24 04:25:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:48,342 INFO L225 Difference]: With dead ends: 174 [2021-02-24 04:25:48,343 INFO L226 Difference]: Without dead ends: 169 [2021-02-24 04:25:48,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:48,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-02-24 04:25:48,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-02-24 04:25:48,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-02-24 04:25:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 179 transitions. [2021-02-24 04:25:48,389 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 179 transitions. Word has length 28 [2021-02-24 04:25:48,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:48,390 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 179 transitions. [2021-02-24 04:25:48,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:25:48,390 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 179 transitions. [2021-02-24 04:25:48,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-24 04:25:48,396 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:48,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:48,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:25:48,405 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:48,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:48,407 INFO L82 PathProgramCache]: Analyzing trace with hash 593562178, now seen corresponding path program 1 times [2021-02-24 04:25:48,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:48,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279961872] [2021-02-24 04:25:48,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:48,421 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:48,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:48,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:48,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:25:48,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:48,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:48,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:48,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:48,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:48,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:48,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:48,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:48,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279961872] [2021-02-24 04:25:48,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:48,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:25:48,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101500770] [2021-02-24 04:25:48,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:25:48,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:48,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:25:48,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:25:48,664 INFO L87 Difference]: Start difference. First operand 169 states and 179 transitions. Second operand 8 states. [2021-02-24 04:25:49,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:49,192 INFO L93 Difference]: Finished difference Result 263 states and 280 transitions. [2021-02-24 04:25:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 04:25:49,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2021-02-24 04:25:49,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:49,196 INFO L225 Difference]: With dead ends: 263 [2021-02-24 04:25:49,196 INFO L226 Difference]: Without dead ends: 258 [2021-02-24 04:25:49,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:25:49,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-02-24 04:25:49,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 163. [2021-02-24 04:25:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2021-02-24 04:25:49,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 173 transitions. [2021-02-24 04:25:49,223 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 173 transitions. Word has length 30 [2021-02-24 04:25:49,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:49,224 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 173 transitions. [2021-02-24 04:25:49,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:25:49,224 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 173 transitions. [2021-02-24 04:25:49,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-02-24 04:25:49,225 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:49,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:49,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:25:49,226 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:49,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:49,227 INFO L82 PathProgramCache]: Analyzing trace with hash -2077510696, now seen corresponding path program 1 times [2021-02-24 04:25:49,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:49,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098557911] [2021-02-24 04:25:49,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:49,233 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:49,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:49,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:49,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:49,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-24 04:25:49,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:49,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:49,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:49,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:49,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098557911] [2021-02-24 04:25:49,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:49,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:25:49,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134574156] [2021-02-24 04:25:49,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:25:49,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:49,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:25:49,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:25:49,361 INFO L87 Difference]: Start difference. First operand 163 states and 173 transitions. Second operand 6 states. [2021-02-24 04:25:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:49,715 INFO L93 Difference]: Finished difference Result 386 states and 411 transitions. [2021-02-24 04:25:49,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:25:49,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2021-02-24 04:25:49,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:49,718 INFO L225 Difference]: With dead ends: 386 [2021-02-24 04:25:49,718 INFO L226 Difference]: Without dead ends: 257 [2021-02-24 04:25:49,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:25:49,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-02-24 04:25:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 166. [2021-02-24 04:25:49,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2021-02-24 04:25:49,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 176 transitions. [2021-02-24 04:25:49,742 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 176 transitions. Word has length 36 [2021-02-24 04:25:49,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:49,743 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 176 transitions. [2021-02-24 04:25:49,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:25:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 176 transitions. [2021-02-24 04:25:49,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-24 04:25:49,744 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:49,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:49,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:25:49,745 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:49,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:49,745 INFO L82 PathProgramCache]: Analyzing trace with hash -460066315, now seen corresponding path program 1 times [2021-02-24 04:25:49,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:49,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13857717] [2021-02-24 04:25:49,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:49,749 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:49,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:49,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:49,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:49,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:49,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:49,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:49,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:49,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:49,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:49,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13857717] [2021-02-24 04:25:49,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:49,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:25:49,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62642398] [2021-02-24 04:25:49,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:25:49,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:49,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:25:49,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:25:49,841 INFO L87 Difference]: Start difference. First operand 166 states and 176 transitions. Second operand 6 states. [2021-02-24 04:25:50,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:50,187 INFO L93 Difference]: Finished difference Result 275 states and 292 transitions. [2021-02-24 04:25:50,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 04:25:50,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2021-02-24 04:25:50,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:50,190 INFO L225 Difference]: With dead ends: 275 [2021-02-24 04:25:50,190 INFO L226 Difference]: Without dead ends: 243 [2021-02-24 04:25:50,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:25:50,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-02-24 04:25:50,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 165. [2021-02-24 04:25:50,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2021-02-24 04:25:50,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 175 transitions. [2021-02-24 04:25:50,213 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 175 transitions. Word has length 38 [2021-02-24 04:25:50,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:50,214 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 175 transitions. [2021-02-24 04:25:50,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:25:50,214 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 175 transitions. [2021-02-24 04:25:50,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-24 04:25:50,215 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:50,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:50,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:25:50,216 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:50,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:50,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1798842793, now seen corresponding path program 1 times [2021-02-24 04:25:50,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:50,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269958988] [2021-02-24 04:25:50,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:50,222 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:50,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:50,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:50,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:25:50,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:50,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:50,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:50,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:50,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:50,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:50,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [269958988] [2021-02-24 04:25:50,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:50,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 04:25:50,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787997733] [2021-02-24 04:25:50,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 04:25:50,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:50,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 04:25:50,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:25:50,320 INFO L87 Difference]: Start difference. First operand 165 states and 175 transitions. Second operand 7 states. [2021-02-24 04:25:50,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:50,893 INFO L93 Difference]: Finished difference Result 249 states and 265 transitions. [2021-02-24 04:25:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 04:25:50,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2021-02-24 04:25:50,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:50,897 INFO L225 Difference]: With dead ends: 249 [2021-02-24 04:25:50,897 INFO L226 Difference]: Without dead ends: 245 [2021-02-24 04:25:50,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:25:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-02-24 04:25:50,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 161. [2021-02-24 04:25:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2021-02-24 04:25:50,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 171 transitions. [2021-02-24 04:25:50,923 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 171 transitions. Word has length 42 [2021-02-24 04:25:50,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:50,924 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 171 transitions. [2021-02-24 04:25:50,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 04:25:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 171 transitions. [2021-02-24 04:25:50,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 04:25:50,925 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:50,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:50,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:25:50,926 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:50,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:50,926 INFO L82 PathProgramCache]: Analyzing trace with hash 72837122, now seen corresponding path program 1 times [2021-02-24 04:25:50,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:50,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396750403] [2021-02-24 04:25:50,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:50,931 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:50,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:50,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:25:50,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:50,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:50,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:50,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:50,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396750403] [2021-02-24 04:25:50,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:50,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:25:50,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533672885] [2021-02-24 04:25:50,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:25:50,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:50,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:25:50,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:50,994 INFO L87 Difference]: Start difference. First operand 161 states and 171 transitions. Second operand 4 states. [2021-02-24 04:25:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:51,237 INFO L93 Difference]: Finished difference Result 271 states and 291 transitions. [2021-02-24 04:25:51,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:25:51,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2021-02-24 04:25:51,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:51,240 INFO L225 Difference]: With dead ends: 271 [2021-02-24 04:25:51,240 INFO L226 Difference]: Without dead ends: 200 [2021-02-24 04:25:51,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:51,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-02-24 04:25:51,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2021-02-24 04:25:51,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2021-02-24 04:25:51,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 175 transitions. [2021-02-24 04:25:51,267 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 175 transitions. Word has length 46 [2021-02-24 04:25:51,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:51,267 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 175 transitions. [2021-02-24 04:25:51,267 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:25:51,267 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 175 transitions. [2021-02-24 04:25:51,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-02-24 04:25:51,268 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:51,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:51,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 04:25:51,269 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:51,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:51,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1276238821, now seen corresponding path program 1 times [2021-02-24 04:25:51,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:51,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088712846] [2021-02-24 04:25:51,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:51,274 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:51,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:51,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:51,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:51,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:51,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:51,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088712846] [2021-02-24 04:25:51,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:51,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:25:51,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294114991] [2021-02-24 04:25:51,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:25:51,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:51,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:25:51,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:51,350 INFO L87 Difference]: Start difference. First operand 164 states and 175 transitions. Second operand 4 states. [2021-02-24 04:25:51,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:51,578 INFO L93 Difference]: Finished difference Result 164 states and 175 transitions. [2021-02-24 04:25:51,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:25:51,579 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2021-02-24 04:25:51,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:51,580 INFO L225 Difference]: With dead ends: 164 [2021-02-24 04:25:51,580 INFO L226 Difference]: Without dead ends: 162 [2021-02-24 04:25:51,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:51,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-02-24 04:25:51,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-02-24 04:25:51,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2021-02-24 04:25:51,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 173 transitions. [2021-02-24 04:25:51,604 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 173 transitions. Word has length 48 [2021-02-24 04:25:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:51,605 INFO L480 AbstractCegarLoop]: Abstraction has 162 states and 173 transitions. [2021-02-24 04:25:51,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:25:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 173 transitions. [2021-02-24 04:25:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-24 04:25:51,606 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:51,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:51,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 04:25:51,607 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:51,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:51,608 INFO L82 PathProgramCache]: Analyzing trace with hash -4183988, now seen corresponding path program 1 times [2021-02-24 04:25:51,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:51,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809954411] [2021-02-24 04:25:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:51,612 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:51,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:51,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:51,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:25:51,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:51,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:51,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:51,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:51,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:51,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:51,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:51,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:51,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809954411] [2021-02-24 04:25:51,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:51,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 04:25:51,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521964377] [2021-02-24 04:25:51,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 04:25:51,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:51,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 04:25:51,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:25:51,761 INFO L87 Difference]: Start difference. First operand 162 states and 173 transitions. Second operand 9 states. [2021-02-24 04:25:52,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:52,445 INFO L93 Difference]: Finished difference Result 359 states and 386 transitions. [2021-02-24 04:25:52,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 04:25:52,446 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2021-02-24 04:25:52,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:52,448 INFO L225 Difference]: With dead ends: 359 [2021-02-24 04:25:52,449 INFO L226 Difference]: Without dead ends: 287 [2021-02-24 04:25:52,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:25:52,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-02-24 04:25:52,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 181. [2021-02-24 04:25:52,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2021-02-24 04:25:52,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 193 transitions. [2021-02-24 04:25:52,488 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 193 transitions. Word has length 52 [2021-02-24 04:25:52,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:52,489 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 193 transitions. [2021-02-24 04:25:52,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 04:25:52,489 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 193 transitions. [2021-02-24 04:25:52,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-02-24 04:25:52,491 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:52,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:52,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:25:52,491 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:52,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:52,492 INFO L82 PathProgramCache]: Analyzing trace with hash -674720819, now seen corresponding path program 1 times [2021-02-24 04:25:52,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:52,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619265717] [2021-02-24 04:25:52,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:52,498 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:52,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:52,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:52,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:52,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:52,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:52,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:52,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:52,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:52,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:52,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:52,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619265717] [2021-02-24 04:25:52,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:52,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:25:52,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984390779] [2021-02-24 04:25:52,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:25:52,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:52,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:25:52,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:52,563 INFO L87 Difference]: Start difference. First operand 181 states and 193 transitions. Second operand 4 states. [2021-02-24 04:25:52,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:52,826 INFO L93 Difference]: Finished difference Result 187 states and 199 transitions. [2021-02-24 04:25:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:25:52,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2021-02-24 04:25:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:52,828 INFO L225 Difference]: With dead ends: 187 [2021-02-24 04:25:52,828 INFO L226 Difference]: Without dead ends: 182 [2021-02-24 04:25:52,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:25:52,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-02-24 04:25:52,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2021-02-24 04:25:52,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2021-02-24 04:25:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 194 transitions. [2021-02-24 04:25:52,887 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 194 transitions. Word has length 56 [2021-02-24 04:25:52,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:52,887 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 194 transitions. [2021-02-24 04:25:52,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:25:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 194 transitions. [2021-02-24 04:25:52,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-24 04:25:52,889 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:52,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:52,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 04:25:52,890 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:52,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:52,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1815431908, now seen corresponding path program 1 times [2021-02-24 04:25:52,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:52,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500137040] [2021-02-24 04:25:52,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:52,930 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:52,951 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:52,968 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:52,973 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:52,987 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:25:53,009 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:25:53,016 WARN L141 QuantifierPusher]: treesize reduction 24, result has 70.0 percent of original size [2021-02-24 04:25:53,022 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:53,028 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,029 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:53,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:25:53,038 WARN L147 QuantifierPusher]: treesize reduction 24, result has 70.0 percent of original size 56 [2021-02-24 04:25:53,041 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:53,044 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:53,047 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:53,051 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:53,060 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:25:53,063 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:25:53,067 WARN L141 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-02-24 04:25:53,068 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:53,070 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:53,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:25:53,076 WARN L147 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size 60 [2021-02-24 04:25:53,077 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:53,081 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:53,083 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:53,087 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:53,095 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:25:53,097 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:25:53,101 WARN L141 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size [2021-02-24 04:25:53,103 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:53,104 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,105 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:53,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:25:53,110 WARN L147 QuantifierPusher]: treesize reduction 24, result has 71.4 percent of original size 60 [2021-02-24 04:25:53,111 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:53,115 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:53,117 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:53,120 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:53,128 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:25:53,130 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:25:53,134 WARN L141 QuantifierPusher]: treesize reduction 24, result has 70.0 percent of original size [2021-02-24 04:25:53,135 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:53,137 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,137 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:53,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:25:53,142 WARN L147 QuantifierPusher]: treesize reduction 24, result has 70.0 percent of original size 56 [2021-02-24 04:25:53,143 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:25:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:53,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:53,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:53,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:53,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:53,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:53,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:53,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:53,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:53,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:53,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:25:53,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-24 04:25:53,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:53,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-24 04:25:53,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:53,320 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.5 percent of original size [2021-02-24 04:25:53,321 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.5 percent of original size 37 [2021-02-24 04:25:53,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:53,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-24 04:25:53,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:53,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:25:53,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-24 04:25:53,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,404 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:53,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:53,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-24 04:25:53,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-24 04:25:53,438 WARN L141 QuantifierPusher]: treesize reduction 15, result has 6.3 percent of original size [2021-02-24 04:25:53,439 WARN L147 QuantifierPusher]: treesize reduction 15, result has 6.3 percent of original size 1 [2021-02-24 04:25:53,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500137040] [2021-02-24 04:25:53,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:53,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:25:53,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718764323] [2021-02-24 04:25:53,440 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:25:53,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:53,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:25:53,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:25:53,441 INFO L87 Difference]: Start difference. First operand 182 states and 194 transitions. Second operand 12 states. [2021-02-24 04:25:54,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:54,062 INFO L93 Difference]: Finished difference Result 203 states and 217 transitions. [2021-02-24 04:25:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 04:25:54,063 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2021-02-24 04:25:54,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:54,064 INFO L225 Difference]: With dead ends: 203 [2021-02-24 04:25:54,064 INFO L226 Difference]: Without dead ends: 201 [2021-02-24 04:25:54,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:25:54,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-02-24 04:25:54,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 180. [2021-02-24 04:25:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2021-02-24 04:25:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 192 transitions. [2021-02-24 04:25:54,106 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 192 transitions. Word has length 57 [2021-02-24 04:25:54,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:54,106 INFO L480 AbstractCegarLoop]: Abstraction has 180 states and 192 transitions. [2021-02-24 04:25:54,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:25:54,106 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 192 transitions. [2021-02-24 04:25:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-24 04:25:54,107 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:54,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:54,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-24 04:25:54,108 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:54,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:54,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1929887829, now seen corresponding path program 1 times [2021-02-24 04:25:54,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:54,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134561978] [2021-02-24 04:25:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:54,113 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:54,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:54,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:54,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:25:54,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:25:54,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:25:54,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:25:54,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-24 04:25:54,356 WARN L141 QuantifierPusher]: treesize reduction 33, result has 56.0 percent of original size [2021-02-24 04:25:54,358 WARN L147 QuantifierPusher]: treesize reduction 33, result has 56.0 percent of original size 42 [2021-02-24 04:25:54,397 WARN L141 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-02-24 04:25:54,398 WARN L147 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size 43 [2021-02-24 04:25:54,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:25:54,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:25:54,462 WARN L141 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-02-24 04:25:54,462 WARN L147 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size 22 [2021-02-24 04:25:54,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:54,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:54,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:54,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:54,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:54,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:54,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134561978] [2021-02-24 04:25:54,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:54,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 04:25:54,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609142132] [2021-02-24 04:25:54,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 04:25:54,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:54,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 04:25:54,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:25:54,565 INFO L87 Difference]: Start difference. First operand 180 states and 192 transitions. Second operand 14 states. [2021-02-24 04:25:56,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:56,557 INFO L93 Difference]: Finished difference Result 561 states and 598 transitions. [2021-02-24 04:25:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-24 04:25:56,558 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2021-02-24 04:25:56,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:56,561 INFO L225 Difference]: With dead ends: 561 [2021-02-24 04:25:56,562 INFO L226 Difference]: Without dead ends: 558 [2021-02-24 04:25:56,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=252, Invalid=804, Unknown=0, NotChecked=0, Total=1056 [2021-02-24 04:25:56,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2021-02-24 04:25:56,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 199. [2021-02-24 04:25:56,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2021-02-24 04:25:56,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 213 transitions. [2021-02-24 04:25:56,620 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 213 transitions. Word has length 57 [2021-02-24 04:25:56,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:56,620 INFO L480 AbstractCegarLoop]: Abstraction has 199 states and 213 transitions. [2021-02-24 04:25:56,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 04:25:56,621 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 213 transitions. [2021-02-24 04:25:56,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-24 04:25:56,621 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:56,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:56,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-24 04:25:56,622 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:56,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:56,623 INFO L82 PathProgramCache]: Analyzing trace with hash -963591574, now seen corresponding path program 1 times [2021-02-24 04:25:56,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:56,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959430442] [2021-02-24 04:25:56,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:56,627 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:25:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:56,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:56,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:56,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:56,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:56,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:56,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-24 04:25:56,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:56,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:25:56,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:56,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:25:56,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:56,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:56,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:56,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:56,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:56,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:56,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:56,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959430442] [2021-02-24 04:25:56,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:56,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:25:56,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681176252] [2021-02-24 04:25:56,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:25:56,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:56,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:25:56,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:25:56,727 INFO L87 Difference]: Start difference. First operand 199 states and 213 transitions. Second operand 8 states. [2021-02-24 04:25:57,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:25:57,239 INFO L93 Difference]: Finished difference Result 218 states and 234 transitions. [2021-02-24 04:25:57,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 04:25:57,240 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2021-02-24 04:25:57,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:25:57,241 INFO L225 Difference]: With dead ends: 218 [2021-02-24 04:25:57,241 INFO L226 Difference]: Without dead ends: 213 [2021-02-24 04:25:57,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:25:57,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-02-24 04:25:57,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 193. [2021-02-24 04:25:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2021-02-24 04:25:57,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 207 transitions. [2021-02-24 04:25:57,289 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 207 transitions. Word has length 58 [2021-02-24 04:25:57,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:25:57,289 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 207 transitions. [2021-02-24 04:25:57,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:25:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 207 transitions. [2021-02-24 04:25:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-24 04:25:57,290 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:25:57,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:25:57,291 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-24 04:25:57,291 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:25:57,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:25:57,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1600054653, now seen corresponding path program 1 times [2021-02-24 04:25:57,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:25:57,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428049818] [2021-02-24 04:25:57,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:25:57,298 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:57,301 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:57,303 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:57,306 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:57,314 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:25:57,316 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:25:57,320 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-24 04:25:57,321 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:57,323 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,323 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:25:57,328 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-24 04:25:57,329 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:57,333 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:57,335 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:57,338 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:57,347 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:25:57,349 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:25:57,352 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-24 04:25:57,353 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:57,355 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,355 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:25:57,359 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-24 04:25:57,361 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:57,364 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:57,366 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:57,369 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:57,377 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:25:57,379 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:25:57,382 WARN L141 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size [2021-02-24 04:25:57,383 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:57,385 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:25:57,389 WARN L147 QuantifierPusher]: treesize reduction 18, result has 77.5 percent of original size 62 [2021-02-24 04:25:57,391 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:57,393 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:57,395 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:25:57,397 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:25:57,405 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:25:57,407 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:25:57,409 WARN L141 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size [2021-02-24 04:25:57,410 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:25:57,412 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,412 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:25:57,417 WARN L147 QuantifierPusher]: treesize reduction 18, result has 78.6 percent of original size 66 [2021-02-24 04:25:57,417 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:25:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:57,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:57,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:57,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:57,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:57,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:57,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:57,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:57,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:25:57,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:57,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:25:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:25:57,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:25:57,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:25:57,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,498 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:25:57,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:57,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:25:57,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:57,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,506 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-24 04:25:57,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-24 04:25:57,533 WARN L141 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size [2021-02-24 04:25:57,533 WARN L147 QuantifierPusher]: treesize reduction 10, result has 28.6 percent of original size 4 [2021-02-24 04:25:57,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 04:25:57,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-24 04:25:57,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:25:57,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:25:57,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:25:57,653 WARN L141 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size [2021-02-24 04:25:57,653 WARN L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-02-24 04:25:57,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-24 04:25:57,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-24 04:25:57,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,698 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:57,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-24 04:25:57,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:57,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-24 04:25:57,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,772 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:57,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-24 04:25:57,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,811 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:57,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-24 04:25:57,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,858 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:57,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-02-24 04:25:57,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,917 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:57,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-02-24 04:25:57,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:57,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:57,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:57,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-02-24 04:25:58,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,055 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:58,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:58,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-24 04:25:58,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,121 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:58,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:58,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-24 04:25:58,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,130 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:58,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:58,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-02-24 04:25:58,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,134 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:58,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:58,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-02-24 04:25:58,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,220 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:58,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:58,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-02-24 04:25:58,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,316 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:25:58,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:25:58,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-24 04:25:58,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 112 [2021-02-24 04:25:58,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428049818] [2021-02-24 04:25:58,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:25:58,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-24 04:25:58,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063243756] [2021-02-24 04:25:58,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-24 04:25:58,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:25:58,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-24 04:25:58,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2021-02-24 04:25:58,409 INFO L87 Difference]: Start difference. First operand 193 states and 207 transitions. Second operand 23 states. [2021-02-24 04:26:00,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:00,334 INFO L93 Difference]: Finished difference Result 302 states and 323 transitions. [2021-02-24 04:26:00,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 04:26:00,335 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 61 [2021-02-24 04:26:00,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:00,337 INFO L225 Difference]: With dead ends: 302 [2021-02-24 04:26:00,337 INFO L226 Difference]: Without dead ends: 299 [2021-02-24 04:26:00,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=256, Invalid=1466, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 04:26:00,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-02-24 04:26:00,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 213. [2021-02-24 04:26:00,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2021-02-24 04:26:00,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 230 transitions. [2021-02-24 04:26:00,419 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 230 transitions. Word has length 61 [2021-02-24 04:26:00,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:00,419 INFO L480 AbstractCegarLoop]: Abstraction has 213 states and 230 transitions. [2021-02-24 04:26:00,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-02-24 04:26:00,420 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 230 transitions. [2021-02-24 04:26:00,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-24 04:26:00,421 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:00,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:26:00,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-24 04:26:00,421 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:00,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:00,422 INFO L82 PathProgramCache]: Analyzing trace with hash 450193912, now seen corresponding path program 1 times [2021-02-24 04:26:00,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:00,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077674084] [2021-02-24 04:26:00,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:00,426 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:26:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:00,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:00,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:26:00,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:26:00,568 WARN L141 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size [2021-02-24 04:26:00,568 WARN L147 QuantifierPusher]: treesize reduction 9, result has 55.0 percent of original size 11 [2021-02-24 04:26:00,582 WARN L141 QuantifierPusher]: treesize reduction 15, result has 60.5 percent of original size [2021-02-24 04:26:00,583 WARN L147 QuantifierPusher]: treesize reduction 15, result has 60.5 percent of original size 23 [2021-02-24 04:26:00,595 WARN L141 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-02-24 04:26:00,595 WARN L147 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size 29 [2021-02-24 04:26:00,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-24 04:26:00,638 WARN L141 QuantifierPusher]: treesize reduction 27, result has 69.0 percent of original size [2021-02-24 04:26:00,639 WARN L147 QuantifierPusher]: treesize reduction 27, result has 69.0 percent of original size 60 [2021-02-24 04:26:00,690 WARN L141 QuantifierPusher]: treesize reduction 15, result has 72.2 percent of original size [2021-02-24 04:26:00,691 WARN L147 QuantifierPusher]: treesize reduction 15, result has 72.2 percent of original size 39 [2021-02-24 04:26:00,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-24 04:26:00,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:26:00,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-24 04:26:00,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:26:00,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:00,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:26:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:26:00,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:00,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:26:00,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:26:00,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077674084] [2021-02-24 04:26:00,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:26:00,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-24 04:26:00,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032113750] [2021-02-24 04:26:00,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-24 04:26:00,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:26:00,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-24 04:26:00,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:26:00,870 INFO L87 Difference]: Start difference. First operand 213 states and 230 transitions. Second operand 15 states. [2021-02-24 04:26:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:26:03,000 INFO L93 Difference]: Finished difference Result 583 states and 626 transitions. [2021-02-24 04:26:03,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-24 04:26:03,001 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 61 [2021-02-24 04:26:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:26:03,004 INFO L225 Difference]: With dead ends: 583 [2021-02-24 04:26:03,004 INFO L226 Difference]: Without dead ends: 580 [2021-02-24 04:26:03,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-02-24 04:26:03,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2021-02-24 04:26:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 217. [2021-02-24 04:26:03,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2021-02-24 04:26:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 234 transitions. [2021-02-24 04:26:03,071 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 234 transitions. Word has length 61 [2021-02-24 04:26:03,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:26:03,071 INFO L480 AbstractCegarLoop]: Abstraction has 217 states and 234 transitions. [2021-02-24 04:26:03,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-24 04:26:03,072 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 234 transitions. [2021-02-24 04:26:03,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-24 04:26:03,073 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:26:03,073 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:26:03,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-24 04:26:03,074 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:26:03,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:26:03,074 INFO L82 PathProgramCache]: Analyzing trace with hash -23328119, now seen corresponding path program 1 times [2021-02-24 04:26:03,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:26:03,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136067496] [2021-02-24 04:26:03,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:26:03,082 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:26:03,091 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:26:03,093 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:26:03,096 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:26:03,103 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:26:03,105 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:26:03,107 WARN L141 QuantifierPusher]: treesize reduction 21, result has 73.8 percent of original size [2021-02-24 04:26:03,108 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:03,110 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:03,110 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:03,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:03,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:26:03,115 WARN L147 QuantifierPusher]: treesize reduction 21, result has 73.8 percent of original size 59 [2021-02-24 04:26:03,116 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:26:03,118 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:26:03,120 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:26:03,124 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:26:03,132 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:26:03,134 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:26:03,138 WARN L141 QuantifierPusher]: treesize reduction 21, result has 75.0 percent of original size [2021-02-24 04:26:03,141 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:03,142 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:03,142 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:03,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:03,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:26:03,149 WARN L147 QuantifierPusher]: treesize reduction 21, result has 75.0 percent of original size 63 [2021-02-24 04:26:03,150 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:26:03,153 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:26:03,157 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:26:03,160 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:26:03,168 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size [2021-02-24 04:26:03,170 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.0 percent of original size 38 [2021-02-24 04:26:03,175 WARN L141 QuantifierPusher]: treesize reduction 21, result has 73.8 percent of original size [2021-02-24 04:26:03,176 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:03,178 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:03,178 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:03,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:03,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-24 04:26:03,181 WARN L147 QuantifierPusher]: treesize reduction 21, result has 73.8 percent of original size 59 [2021-02-24 04:26:03,182 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:26:03,187 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:26:03,188 WARN L141 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size [2021-02-24 04:26:03,191 WARN L147 QuantifierPusher]: treesize reduction 3, result has 93.9 percent of original size 46 [2021-02-24 04:26:03,205 WARN L141 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-02-24 04:26:03,206 WARN L147 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size 42 [2021-02-24 04:26:03,210 WARN L141 QuantifierPusher]: treesize reduction 21, result has 75.0 percent of original size [2021-02-24 04:26:03,212 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-24 04:26:03,214 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:03,214 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:26:03,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:26:03,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-24 04:26:03,219 WARN L147 QuantifierPusher]: treesize reduction 21, result has 75.0 percent of original size 63 [2021-02-24 04:26:03,220 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:26:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:26:03,251 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:26:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:26:03,285 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:26:03,339 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:26:03,340 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:26:03,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-02-24 04:26:03,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:26:03 BoogieIcfgContainer [2021-02-24 04:26:03,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:26:03,365 INFO L168 Benchmark]: Toolchain (without parser) took 18609.30 ms. Allocated memory was 151.0 MB in the beginning and 380.6 MB in the end (delta: 229.6 MB). Free memory was 127.1 MB in the beginning and 243.7 MB in the end (delta: -116.5 MB). Peak memory consumption was 113.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,365 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:26:03,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.45 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 131.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 27.9 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,366 INFO L168 Benchmark]: Boogie Preprocessor took 153.28 ms. Allocated memory is still 151.0 MB. Free memory was 131.8 MB in the beginning and 128.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,366 INFO L168 Benchmark]: RCFGBuilder took 1048.47 ms. Allocated memory is still 151.0 MB. Free memory was 128.4 MB in the beginning and 112.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,366 INFO L168 Benchmark]: TraceAbstraction took 16676.35 ms. Allocated memory was 151.0 MB in the beginning and 380.6 MB in the end (delta: 229.6 MB). Free memory was 112.3 MB in the beginning and 243.7 MB in the end (delta: -131.4 MB). Peak memory consumption was 98.3 MB. Max. memory is 8.0 GB. [2021-02-24 04:26:03,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 693.45 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 131.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 27.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 153.28 ms. Allocated memory is still 151.0 MB. Free memory was 131.8 MB in the beginning and 128.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1048.47 ms. Allocated memory is still 151.0 MB. Free memory was 128.4 MB in the beginning and 112.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 48.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16676.35 ms. Allocated memory was 151.0 MB in the beginning and 380.6 MB in the end (delta: 229.6 MB). Free memory was 112.3 MB in the beginning and 243.7 MB in the end (delta: -131.4 MB). Peak memory consumption was 98.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1036]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1002] SLL* list = malloc(sizeof(SLL)); [L1003] list->next = ((void*)0) [L1004] COND FALSE !(!(list != ((void*)0))) [L1004] COND TRUE __VERIFIER_nondet_int() [L1004] list->inner = ((void*)0) [L1004] EXPR list->inner [L1004] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L1004] EXPR list->inner [L1004] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L1004] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1006] SLL* end = list; [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1019] end = ((void*)0) [L1020] end = list [L1023] COND FALSE !(!(((void*)0) != end)) [L1025] COND TRUE ((void*)0) != end [L1027] int len = 0; [L1028] EXPR end->inner [L1028] SLL* inner = end->inner; [L1029] COND FALSE !(((void*)0) != inner) [L1042] COND FALSE !(!(len <= 1)) [L1044] EXPR end->next [L1044] end = end->next [L1025] COND TRUE ((void*)0) != end [L1027] int len = 0; [L1028] EXPR end->inner [L1028] SLL* inner = end->inner; [L1029] COND TRUE ((void*)0) != inner [L1031] COND TRUE len == 0 [L1032] len = 1 [L1035] COND FALSE !(!(((void*)0) != inner)) [L1036] EXPR inner->inner [L1036] COND TRUE !(((void*)0) == inner->inner) [L1036] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 193 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.5s, OverallIterations: 16, TraceHistogramMax: 2, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2587 SDtfs, 4610 SDslu, 7959 SDs, 0 SdLazy, 5671 SolverSat, 153 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 1369 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...