/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-token-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:09:33,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:09:33,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:09:34,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 18:09:34,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 18:09:34,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 18:09:34,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 18:09:34,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 18:09:34,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 18:09:34,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 18:09:34,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 18:09:34,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 18:09:34,088 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:09:34,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:09:34,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:09:34,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:09:34,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:09:34,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:09:34,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:09:34,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:09:34,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:09:34,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:09:34,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:09:34,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:09:34,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 18:09:34,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 18:09:34,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 18:09:34,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 18:09:34,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 18:09:34,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 18:09:34,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 18:09:34,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 18:09:34,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 18:09:34,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 18:09:34,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 18:09:34,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 18:09:34,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 18:09:34,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 18:09:34,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:09:34,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:09:34,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:09:34,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:09:34,173 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:09:34,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:09:34,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:09:34,178 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:09:34,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:09:34,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:09:34,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:09:34,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:09:34,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:09:34,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:09:34,181 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:09:34,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:09:34,181 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:09:34,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:09:34,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:09:34,182 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:09:34,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:09:34,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:09:34,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:09:34,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:09:34,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:09:34,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:09:34,184 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:09:34,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:09:34,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:09:34,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:09:34,634 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:09:34,638 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:09:34,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token-2.i [2021-02-23 18:09:34,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d30fea09/8fe8c4d57a724aa49e6260d628c5cfdf/FLAGc6927b4b6 [2021-02-23 18:09:35,644 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:09:35,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-2.i [2021-02-23 18:09:35,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d30fea09/8fe8c4d57a724aa49e6260d628c5cfdf/FLAGc6927b4b6 [2021-02-23 18:09:35,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d30fea09/8fe8c4d57a724aa49e6260d628c5cfdf [2021-02-23 18:09:35,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:09:35,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:09:35,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:09:35,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:09:35,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:09:35,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:09:35" (1/1) ... [2021-02-23 18:09:35,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40cee7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:35, skipping insertion in model container [2021-02-23 18:09:35,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:09:35" (1/1) ... [2021-02-23 18:09:35,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:09:35,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:09:36,323 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/dll-token-2.i[22229,22242] [2021-02-23 18:09:36,345 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/dll-token-2.i[22398,22411] [2021-02-23 18:09:36,347 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/dll-token-2.i[22489,22502] [2021-02-23 18:09:36,350 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/dll-token-2.i[22571,22584] [2021-02-23 18:09:36,351 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/dll-token-2.i[22649,22662] [2021-02-23 18:09:36,353 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/dll-token-2.i[22795,22808] [2021-02-23 18:09:36,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:09:36,374 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:09:36,414 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/dll-token-2.i[22229,22242] [2021-02-23 18:09:36,416 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/dll-token-2.i[22398,22411] [2021-02-23 18:09:36,418 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/dll-token-2.i[22489,22502] [2021-02-23 18:09:36,419 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/dll-token-2.i[22571,22584] [2021-02-23 18:09:36,421 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/dll-token-2.i[22649,22662] [2021-02-23 18:09:36,423 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/dll-token-2.i[22795,22808] [2021-02-23 18:09:36,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:09:36,486 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:09:36,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36 WrapperNode [2021-02-23 18:09:36,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:09:36,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:09:36,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:09:36,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:09:36,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36" (1/1) ... [2021-02-23 18:09:36,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36" (1/1) ... [2021-02-23 18:09:36,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36" (1/1) ... [2021-02-23 18:09:36,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36" (1/1) ... [2021-02-23 18:09:36,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36" (1/1) ... [2021-02-23 18:09:36,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36" (1/1) ... [2021-02-23 18:09:36,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36" (1/1) ... [2021-02-23 18:09:36,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:09:36,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:09:36,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:09:36,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:09:36,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:09:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:09:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:09:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:09:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:09:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-23 18:09:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-23 18:09:36,685 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-23 18:09:36,686 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-23 18:09:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-23 18:09:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-23 18:09:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-23 18:09:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-23 18:09:36,695 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-23 18:09:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-23 18:09:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-23 18:09:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-23 18:09:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-23 18:09:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-23 18:09:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-23 18:09:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-23 18:09:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-23 18:09:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-23 18:09:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-23 18:09:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-23 18:09:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-23 18:09:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-23 18:09:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-23 18:09:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-23 18:09:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-23 18:09:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-23 18:09:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-23 18:09:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-23 18:09:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-23 18:09:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-23 18:09:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-23 18:09:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-23 18:09:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-23 18:09:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-23 18:09:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-23 18:09:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-23 18:09:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-23 18:09:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-23 18:09:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-23 18:09:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-23 18:09:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-23 18:09:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-23 18:09:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-23 18:09:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-23 18:09:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-23 18:09:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-23 18:09:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-23 18:09:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-23 18:09:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-23 18:09:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-23 18:09:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 18:09:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-23 18:09:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-23 18:09:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 18:09:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-23 18:09:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-23 18:09:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-23 18:09:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-23 18:09:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-23 18:09:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:09:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-23 18:09:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-23 18:09:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-23 18:09:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 18:09:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-23 18:09:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-23 18:09:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-23 18:09:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-23 18:09:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-23 18:09:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-23 18:09:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-23 18:09:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-23 18:09:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-23 18:09:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-23 18:09:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-23 18:09:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-23 18:09:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-23 18:09:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-23 18:09:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-23 18:09:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-23 18:09:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-23 18:09:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-23 18:09:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-23 18:09:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-23 18:09:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-23 18:09:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-23 18:09:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-23 18:09:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-23 18:09:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-23 18:09:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-23 18:09:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-23 18:09:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-23 18:09:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-23 18:09:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-23 18:09:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-23 18:09:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-23 18:09:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-23 18:09:36,733 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-23 18:09:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-23 18:09:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-23 18:09:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-23 18:09:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-23 18:09:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-23 18:09:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:09:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:09:36,734 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 18:09:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 18:09:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:09:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:09:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:09:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 18:09:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 18:09:36,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:09:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 18:09:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:09:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:09:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:09:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:09:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:09:37,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:09:37,360 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-02-23 18:09:37,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:09:37 BoogieIcfgContainer [2021-02-23 18:09:37,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:09:37,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:09:37,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:09:37,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:09:37,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:09:35" (1/3) ... [2021-02-23 18:09:37,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104925ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:09:37, skipping insertion in model container [2021-02-23 18:09:37,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:09:36" (2/3) ... [2021-02-23 18:09:37,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104925ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:09:37, skipping insertion in model container [2021-02-23 18:09:37,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:09:37" (3/3) ... [2021-02-23 18:09:37,373 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2021-02-23 18:09:37,381 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:09:37,387 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-02-23 18:09:37,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-02-23 18:09:37,437 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:09:37,437 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:09:37,437 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:09:37,438 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:09:37,438 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:09:37,438 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:09:37,438 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:09:37,438 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:09:37,459 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2021-02-23 18:09:37,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-23 18:09:37,470 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:37,471 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] [2021-02-23 18:09:37,472 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:37,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:37,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1971644664, now seen corresponding path program 1 times [2021-02-23 18:09:37,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:37,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394105612] [2021-02-23 18:09:37,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:37,588 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:37,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:37,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:37,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:37,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:37,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:37,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:37,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:37,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394105612] [2021-02-23 18:09:37,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:37,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 18:09:37,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538878951] [2021-02-23 18:09:37,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 18:09:37,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:37,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 18:09:37,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:09:37,886 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2021-02-23 18:09:38,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:38,164 INFO L93 Difference]: Finished difference Result 199 states and 245 transitions. [2021-02-23 18:09:38,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 18:09:38,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-02-23 18:09:38,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:38,176 INFO L225 Difference]: With dead ends: 199 [2021-02-23 18:09:38,177 INFO L226 Difference]: Without dead ends: 94 [2021-02-23 18:09:38,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:09:38,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-02-23 18:09:38,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-02-23 18:09:38,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2021-02-23 18:09:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 96 transitions. [2021-02-23 18:09:38,235 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 96 transitions. Word has length 30 [2021-02-23 18:09:38,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:38,235 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 96 transitions. [2021-02-23 18:09:38,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 18:09:38,236 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 96 transitions. [2021-02-23 18:09:38,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-23 18:09:38,237 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:38,237 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] [2021-02-23 18:09:38,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:09:38,238 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:38,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:38,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1651111878, now seen corresponding path program 1 times [2021-02-23 18:09:38,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:38,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33945590] [2021-02-23 18:09:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:38,245 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:38,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:38,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:09:38,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:09:38,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:09:38,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:09:38,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:09:38,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:09:38,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:09:38,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:38,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:38,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:38,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:38,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:38,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:38,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:38,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33945590] [2021-02-23 18:09:38,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:38,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 18:09:38,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682837391] [2021-02-23 18:09:38,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 18:09:38,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:38,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 18:09:38,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-02-23 18:09:38,693 INFO L87 Difference]: Start difference. First operand 94 states and 96 transitions. Second operand 12 states. [2021-02-23 18:09:39,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:39,488 INFO L93 Difference]: Finished difference Result 178 states and 183 transitions. [2021-02-23 18:09:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 18:09:39,489 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2021-02-23 18:09:39,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:39,492 INFO L225 Difference]: With dead ends: 178 [2021-02-23 18:09:39,492 INFO L226 Difference]: Without dead ends: 176 [2021-02-23 18:09:39,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2021-02-23 18:09:39,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-02-23 18:09:39,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 107. [2021-02-23 18:09:39,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-02-23 18:09:39,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 110 transitions. [2021-02-23 18:09:39,518 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 110 transitions. Word has length 31 [2021-02-23 18:09:39,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:39,518 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 110 transitions. [2021-02-23 18:09:39,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 18:09:39,519 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 110 transitions. [2021-02-23 18:09:39,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-23 18:09:39,520 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:39,520 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] [2021-02-23 18:09:39,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:09:39,521 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:39,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:39,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1446677332, now seen corresponding path program 1 times [2021-02-23 18:09:39,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:39,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312223505] [2021-02-23 18:09:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:39,527 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:39,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:39,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:39,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,601 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:39,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:39,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:39,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:39,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:39,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312223505] [2021-02-23 18:09:39,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:39,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 18:09:39,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489835094] [2021-02-23 18:09:39,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 18:09:39,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:39,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 18:09:39,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 18:09:39,649 INFO L87 Difference]: Start difference. First operand 107 states and 110 transitions. Second operand 6 states. [2021-02-23 18:09:39,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:39,912 INFO L93 Difference]: Finished difference Result 164 states and 168 transitions. [2021-02-23 18:09:39,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 18:09:39,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-02-23 18:09:39,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:39,915 INFO L225 Difference]: With dead ends: 164 [2021-02-23 18:09:39,915 INFO L226 Difference]: Without dead ends: 162 [2021-02-23 18:09:39,916 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 [2021-02-23 18:09:39,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-02-23 18:09:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 105. [2021-02-23 18:09:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2021-02-23 18:09:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 108 transitions. [2021-02-23 18:09:39,938 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 108 transitions. Word has length 32 [2021-02-23 18:09:39,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:39,939 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 108 transitions. [2021-02-23 18:09:39,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 18:09:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 108 transitions. [2021-02-23 18:09:39,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-02-23 18:09:39,941 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:39,941 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] [2021-02-23 18:09:39,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:09:39,941 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:39,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:39,942 INFO L82 PathProgramCache]: Analyzing trace with hash -2072063760, now seen corresponding path program 1 times [2021-02-23 18:09:39,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:39,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298518182] [2021-02-23 18:09:39,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:39,947 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:39,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:39,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:09:39,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:09:39,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:39,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:09:40,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:40,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:40,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:40,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:40,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:40,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:40,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298518182] [2021-02-23 18:09:40,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:40,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 18:09:40,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300679976] [2021-02-23 18:09:40,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 18:09:40,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:40,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 18:09:40,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 18:09:40,047 INFO L87 Difference]: Start difference. First operand 105 states and 108 transitions. Second operand 6 states. [2021-02-23 18:09:40,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:40,261 INFO L93 Difference]: Finished difference Result 105 states and 108 transitions. [2021-02-23 18:09:40,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 18:09:40,262 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2021-02-23 18:09:40,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:40,264 INFO L225 Difference]: With dead ends: 105 [2021-02-23 18:09:40,264 INFO L226 Difference]: Without dead ends: 102 [2021-02-23 18:09:40,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 18:09:40,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-02-23 18:09:40,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-02-23 18:09:40,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-23 18:09:40,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2021-02-23 18:09:40,284 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 39 [2021-02-23 18:09:40,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:40,285 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2021-02-23 18:09:40,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 18:09:40,285 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2021-02-23 18:09:40,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-02-23 18:09:40,286 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:40,287 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] [2021-02-23 18:09:40,287 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:09:40,287 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:40,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:40,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1984236912, now seen corresponding path program 1 times [2021-02-23 18:09:40,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:40,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514777246] [2021-02-23 18:09:40,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:40,293 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:40,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:40,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:40,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:40,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:09:40,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:40,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:09:40,451 WARN L141 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-02-23 18:09:40,452 WARN L147 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size 15 [2021-02-23 18:09:40,472 WARN L141 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-02-23 18:09:40,474 WARN L147 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size 29 [2021-02-23 18:09:40,504 WARN L141 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size [2021-02-23 18:09:40,506 WARN L147 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size 28 [2021-02-23 18:09:40,538 WARN L141 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-02-23 18:09:40,541 WARN L147 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size 32 [2021-02-23 18:09:40,572 WARN L141 QuantifierPusher]: treesize reduction 21, result has 71.2 percent of original size [2021-02-23 18:09:40,573 WARN L147 QuantifierPusher]: treesize reduction 21, result has 71.2 percent of original size 52 [2021-02-23 18:09:40,612 WARN L141 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-02-23 18:09:40,617 WARN L147 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size 32 [2021-02-23 18:09:40,619 WARN L141 QuantifierPusher]: treesize reduction 9, result has 71.9 percent of original size [2021-02-23 18:09:40,620 WARN L147 QuantifierPusher]: treesize reduction 9, result has 71.9 percent of original size 23 [2021-02-23 18:09:40,639 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-23 18:09:40,640 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-23 18:09:40,655 WARN L141 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-02-23 18:09:40,656 WARN L147 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size 13 [2021-02-23 18:09:40,671 WARN L141 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-02-23 18:09:40,672 WARN L147 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size 7 [2021-02-23 18:09:40,687 WARN L141 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-02-23 18:09:40,688 WARN L147 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size 1 [2021-02-23 18:09:40,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:40,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:40,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:40,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:40,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:40,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514777246] [2021-02-23 18:09:40,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:40,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-23 18:09:40,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574439255] [2021-02-23 18:09:40,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 18:09:40,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:40,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 18:09:40,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-02-23 18:09:40,738 INFO L87 Difference]: Start difference. First operand 102 states and 105 transitions. Second operand 14 states. [2021-02-23 18:09:41,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:41,566 INFO L93 Difference]: Finished difference Result 233 states and 239 transitions. [2021-02-23 18:09:41,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 18:09:41,575 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2021-02-23 18:09:41,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:41,579 INFO L225 Difference]: With dead ends: 233 [2021-02-23 18:09:41,579 INFO L226 Difference]: Without dead ends: 190 [2021-02-23 18:09:41,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2021-02-23 18:09:41,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-02-23 18:09:41,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 117. [2021-02-23 18:09:41,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2021-02-23 18:09:41,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 120 transitions. [2021-02-23 18:09:41,629 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 120 transitions. Word has length 39 [2021-02-23 18:09:41,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:41,629 INFO L480 AbstractCegarLoop]: Abstraction has 117 states and 120 transitions. [2021-02-23 18:09:41,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 18:09:41,629 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 120 transitions. [2021-02-23 18:09:41,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-02-23 18:09:41,633 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:41,634 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:09:41,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 18:09:41,634 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:41,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:41,635 INFO L82 PathProgramCache]: Analyzing trace with hash 138822313, now seen corresponding path program 1 times [2021-02-23 18:09:41,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:41,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776829724] [2021-02-23 18:09:41,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:41,708 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:09:41,712 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:41,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:41,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:09:41,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:09:41,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:09:41,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 18:09:41,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 18:09:41,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 18:09:41,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:09:41,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:09:41,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 18:09:41,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 18:09:41,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-23 18:09:41,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 18:09:41,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 18:09:41,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:41,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:09:41,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:41,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:42,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:09:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:09:42,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:09:42,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:09:42,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:09:42,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776829724] [2021-02-23 18:09:42,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:09:42,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-23 18:09:42,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198375068] [2021-02-23 18:09:42,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-23 18:09:42,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:09:42,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-23 18:09:42,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-02-23 18:09:42,037 INFO L87 Difference]: Start difference. First operand 117 states and 120 transitions. Second operand 17 states. [2021-02-23 18:09:42,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:09:42,976 INFO L93 Difference]: Finished difference Result 150 states and 154 transitions. [2021-02-23 18:09:42,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 18:09:42,977 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 45 [2021-02-23 18:09:42,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:09:42,978 INFO L225 Difference]: With dead ends: 150 [2021-02-23 18:09:42,978 INFO L226 Difference]: Without dead ends: 148 [2021-02-23 18:09:42,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2021-02-23 18:09:42,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-02-23 18:09:43,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 104. [2021-02-23 18:09:43,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-23 18:09:43,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 107 transitions. [2021-02-23 18:09:43,001 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 107 transitions. Word has length 45 [2021-02-23 18:09:43,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:09:43,002 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 107 transitions. [2021-02-23 18:09:43,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-23 18:09:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 107 transitions. [2021-02-23 18:09:43,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-23 18:09:43,003 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:09:43,003 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] [2021-02-23 18:09:43,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 18:09:43,004 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:09:43,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:09:43,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1578700039, now seen corresponding path program 1 times [2021-02-23 18:09:43,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:09:43,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407528260] [2021-02-23 18:09:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:09:43,009 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:09:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 18:09:43,035 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 18:09:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 18:09:43,056 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 18:09:43,091 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 18:09:43,092 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 18:09:43,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 18:09:43,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:09:43 BoogieIcfgContainer [2021-02-23 18:09:43,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:09:43,114 INFO L168 Benchmark]: Toolchain (without parser) took 7258.41 ms. Allocated memory was 152.0 MB in the beginning and 186.6 MB in the end (delta: 34.6 MB). Free memory was 126.5 MB in the beginning and 63.7 MB in the end (delta: 62.8 MB). Peak memory consumption was 98.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:43,114 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 125.8 MB. Free memory is still 82.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:09:43,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.29 ms. Allocated memory is still 152.0 MB. Free memory was 125.3 MB in the beginning and 102.6 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:43,115 INFO L168 Benchmark]: Boogie Preprocessor took 83.97 ms. Allocated memory is still 152.0 MB. Free memory was 102.6 MB in the beginning and 99.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:43,116 INFO L168 Benchmark]: RCFGBuilder took 785.77 ms. Allocated memory is still 152.0 MB. Free memory was 99.8 MB in the beginning and 89.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:43,117 INFO L168 Benchmark]: TraceAbstraction took 5747.73 ms. Allocated memory was 152.0 MB in the beginning and 186.6 MB in the end (delta: 34.6 MB). Free memory was 88.7 MB in the beginning and 63.7 MB in the end (delta: 25.1 MB). Peak memory consumption was 60.7 MB. Max. memory is 8.0 GB. [2021-02-23 18:09:43,119 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 125.8 MB. Free memory is still 82.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 617.29 ms. Allocated memory is still 152.0 MB. Free memory was 125.3 MB in the beginning and 102.6 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 83.97 ms. Allocated memory is still 152.0 MB. Free memory was 102.6 MB in the beginning and 99.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 785.77 ms. Allocated memory is still 152.0 MB. Free memory was 99.8 MB in the beginning and 89.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5747.73 ms. Allocated memory was 152.0 MB in the beginning and 186.6 MB in the end (delta: 34.6 MB). Free memory was 88.7 MB in the beginning and 63.7 MB in the end (delta: 25.1 MB). Peak memory consumption was 60.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1037]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); [L1005] head->next = ((void*)0) [L1006] head->prev = ((void*)0) [L1007] head->data = 0 [L1009] SLL* x = head; [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 [L1022] x->next = malloc(sizeof(SLL)) [L1023] EXPR x->next [L1023] x->next->prev = x [L1024] EXPR x->next [L1024] x->next->data = 2 [L1026] x = head [L1028] COND FALSE !(!(((void*)0) != x)) [L1030] EXPR x->data [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next [L1036] x = x->next [L1037] EXPR x->data [L1037] COND TRUE !(2 != x->data) [L1037] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 116 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.6s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 449 SDtfs, 1333 SDslu, 1879 SDs, 0 SdLazy, 2023 SolverSat, 131 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 243 StatesRemovedByMinimization, 4 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...