/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:46:14,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:46:14,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:46:14,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:46:14,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:46:14,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:46:14,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:46:14,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:46:14,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:46:14,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:46:14,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:46:14,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:46:14,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:46:14,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:46:14,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:46:14,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:46:14,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:46:14,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:46:14,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:46:14,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:46:14,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:46:14,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:46:14,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:46:14,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:46:14,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:46:14,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:46:14,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:46:14,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:46:14,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:46:14,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:46:14,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:46:14,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:46:14,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:46:14,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:46:14,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:46:14,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:46:14,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:46:14,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:46:14,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:46:14,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:46:14,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:46:14,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 17:46:14,374 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:46:14,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:46:14,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:46:14,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:46:14,380 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:46:14,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:46:14,380 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:46:14,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:46:14,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:46:14,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:46:14,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:46:14,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:46:14,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:46:14,383 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:46:14,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:46:14,384 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:46:14,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:46:14,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:46:14,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:46:14,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:46:14,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:46:14,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:46:14,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:46:14,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:46:14,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:46:14,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:46:14,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:46:14,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:46:14,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:46:14,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:46:14,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:46:14,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:46:14,813 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:46:14,814 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:46:14,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01-1.i [2021-02-19 17:46:14,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a956e8adb/79f3af2683094453b999f8199a287e08/FLAG52aa11d64 [2021-02-19 17:46:15,824 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:46:15,825 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-01-1.i [2021-02-19 17:46:15,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a956e8adb/79f3af2683094453b999f8199a287e08/FLAG52aa11d64 [2021-02-19 17:46:16,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a956e8adb/79f3af2683094453b999f8199a287e08 [2021-02-19 17:46:16,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:46:16,051 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:46:16,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:46:16,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:46:16,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:46:16,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:46:16" (1/1) ... [2021-02-19 17:46:16,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e6e51c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16, skipping insertion in model container [2021-02-19 17:46:16,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:46:16" (1/1) ... [2021-02-19 17:46:16,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:46:16,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:46:16,428 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-01-1.i[22080,22093] [2021-02-19 17:46:16,436 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-01-1.i[22353,22366] [2021-02-19 17:46:16,439 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-01-1.i[22587,22600] [2021-02-19 17:46:16,440 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-01-1.i[22657,22670] [2021-02-19 17:46:16,443 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-01-1.i[22924,22937] [2021-02-19 17:46:16,445 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-01-1.i[23032,23045] [2021-02-19 17:46:16,447 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-01-1.i[23263,23276] [2021-02-19 17:46:16,448 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-01-1.i[23343,23356] [2021-02-19 17:46:16,449 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-01-1.i[23422,23435] [2021-02-19 17:46:16,451 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-01-1.i[23512,23525] [2021-02-19 17:46:16,453 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-01-1.i[23690,23703] [2021-02-19 17:46:16,454 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-01-1.i[23768,23781] [2021-02-19 17:46:16,455 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-01-1.i[23845,23858] [2021-02-19 17:46:16,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:46:16,470 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:46:16,510 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-01-1.i[22080,22093] [2021-02-19 17:46:16,514 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-01-1.i[22353,22366] [2021-02-19 17:46:16,517 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-01-1.i[22587,22600] [2021-02-19 17:46:16,518 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-01-1.i[22657,22670] [2021-02-19 17:46:16,521 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-01-1.i[22924,22937] [2021-02-19 17:46:16,522 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-01-1.i[23032,23045] [2021-02-19 17:46:16,524 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-01-1.i[23263,23276] [2021-02-19 17:46:16,526 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-01-1.i[23343,23356] [2021-02-19 17:46:16,527 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-01-1.i[23422,23435] [2021-02-19 17:46:16,528 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-01-1.i[23512,23525] [2021-02-19 17:46:16,530 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-01-1.i[23690,23703] [2021-02-19 17:46:16,531 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-01-1.i[23768,23781] [2021-02-19 17:46:16,532 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-01-1.i[23845,23858] [2021-02-19 17:46:16,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:46:16,616 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:46:16,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16 WrapperNode [2021-02-19 17:46:16,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:46:16,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:46:16,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:46:16,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:46:16,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16" (1/1) ... [2021-02-19 17:46:16,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16" (1/1) ... [2021-02-19 17:46:16,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16" (1/1) ... [2021-02-19 17:46:16,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16" (1/1) ... [2021-02-19 17:46:16,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16" (1/1) ... [2021-02-19 17:46:16,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16" (1/1) ... [2021-02-19 17:46:16,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16" (1/1) ... [2021-02-19 17:46:16,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:46:16,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:46:16,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:46:16,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:46:16,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16" (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 [2021-02-19 17:46:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:46:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:46:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:46:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:46:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-19 17:46:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-19 17:46:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-19 17:46:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-19 17:46:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-19 17:46:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-19 17:46:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-19 17:46:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-19 17:46:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-19 17:46:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-19 17:46:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-19 17:46:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-19 17:46:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-19 17:46:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-19 17:46:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-19 17:46:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-19 17:46:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-19 17:46:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-19 17:46:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-19 17:46:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-19 17:46:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-19 17:46:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-19 17:46:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-19 17:46:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-19 17:46:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-19 17:46:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-19 17:46:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-19 17:46:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-19 17:46:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-19 17:46:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-19 17:46:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-19 17:46:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-19 17:46:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-19 17:46:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-19 17:46:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-19 17:46:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-19 17:46:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-19 17:46:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-19 17:46:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-19 17:46:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-19 17:46:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-19 17:46:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-19 17:46:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-19 17:46:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-19 17:46:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-19 17:46:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-19 17:46:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-19 17:46:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-19 17:46:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-19 17:46:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-19 17:46:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:46:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-19 17:46:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-19 17:46:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:46:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-19 17:46:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-19 17:46:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-19 17:46:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-19 17:46:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-19 17:46:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:46:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-19 17:46:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-19 17:46:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-19 17:46:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-19 17:46:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-19 17:46:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-19 17:46:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-19 17:46:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-19 17:46:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-19 17:46:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-19 17:46:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-19 17:46:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-19 17:46:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-19 17:46:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-19 17:46:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-19 17:46:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-19 17:46:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-19 17:46:16,847 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-19 17:46:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-19 17:46:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-19 17:46:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-19 17:46:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-19 17:46:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-19 17:46:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-19 17:46:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-19 17:46:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-19 17:46:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-19 17:46:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-19 17:46:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-19 17:46:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-19 17:46:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-19 17:46:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-19 17:46:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-19 17:46:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-19 17:46:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-19 17:46:16,851 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-19 17:46:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-19 17:46:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-19 17:46:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-19 17:46:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-19 17:46:16,852 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-19 17:46:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-19 17:46:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-19 17:46:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:46:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:46:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-19 17:46:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-19 17:46:16,853 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:46:16,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:46:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:46:16,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:46:16,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:46:16,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:46:16,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:46:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:46:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:46:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:46:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:46:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:46:17,810 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:46:17,811 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-02-19 17:46:17,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:46:17 BoogieIcfgContainer [2021-02-19 17:46:17,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:46:17,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:46:17,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:46:17,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:46:17,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:46:16" (1/3) ... [2021-02-19 17:46:17,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7151ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:46:17, skipping insertion in model container [2021-02-19 17:46:17,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:46:16" (2/3) ... [2021-02-19 17:46:17,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7151ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:46:17, skipping insertion in model container [2021-02-19 17:46:17,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:46:17" (3/3) ... [2021-02-19 17:46:17,842 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2021-02-19 17:46:17,850 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:46:17,857 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2021-02-19 17:46:17,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-02-19 17:46:17,940 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:46:17,941 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:46:17,941 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:46:17,941 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:46:17,942 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:46:17,942 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:46:17,942 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:46:17,942 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:46:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2021-02-19 17:46:17,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-02-19 17:46:17,988 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:17,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:46:17,991 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]=== [2021-02-19 17:46:18,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:18,004 INFO L82 PathProgramCache]: Analyzing trace with hash -422041064, now seen corresponding path program 1 times [2021-02-19 17:46:18,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:18,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641409973] [2021-02-19 17:46:18,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:18,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:18,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:18,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:18,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:46:18,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:18,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:18,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:18,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:18,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:18,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641409973] [2021-02-19 17:46:18,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:18,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:46:18,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104038364] [2021-02-19 17:46:18,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:46:18,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:18,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:46:18,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:46:18,358 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2021-02-19 17:46:18,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:18,621 INFO L93 Difference]: Finished difference Result 186 states and 302 transitions. [2021-02-19 17:46:18,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:46:18,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-02-19 17:46:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:18,633 INFO L225 Difference]: With dead ends: 186 [2021-02-19 17:46:18,633 INFO L226 Difference]: Without dead ends: 99 [2021-02-19 17:46:18,637 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 [2021-02-19 17:46:18,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-02-19 17:46:18,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2021-02-19 17:46:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2021-02-19 17:46:18,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2021-02-19 17:46:18,684 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 8 [2021-02-19 17:46:18,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:18,684 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2021-02-19 17:46:18,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:46:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2021-02-19 17:46:18,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-19 17:46:18,685 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:18,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:46:18,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:46:18,686 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]=== [2021-02-19 17:46:18,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:18,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1671475460, now seen corresponding path program 1 times [2021-02-19 17:46:18,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:18,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063066737] [2021-02-19 17:46:18,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:18,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:18,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:18,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:18,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:18,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:18,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:18,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:18,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:18,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:18,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:18,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063066737] [2021-02-19 17:46:18,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:18,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:46:18,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899519913] [2021-02-19 17:46:18,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:46:18,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:18,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:46:18,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:46:18,849 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand 4 states. [2021-02-19 17:46:19,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:19,016 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2021-02-19 17:46:19,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:46:19,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-02-19 17:46:19,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:19,018 INFO L225 Difference]: With dead ends: 84 [2021-02-19 17:46:19,018 INFO L226 Difference]: Without dead ends: 82 [2021-02-19 17:46:19,019 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 [2021-02-19 17:46:19,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-02-19 17:46:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-02-19 17:46:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2021-02-19 17:46:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2021-02-19 17:46:19,031 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 14 [2021-02-19 17:46:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:19,031 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2021-02-19 17:46:19,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:46:19,032 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2021-02-19 17:46:19,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-19 17:46:19,032 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:19,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:46:19,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:46:19,033 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]=== [2021-02-19 17:46:19,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:19,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1671477382, now seen corresponding path program 1 times [2021-02-19 17:46:19,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:19,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80162197] [2021-02-19 17:46:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:19,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:19,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-19 17:46:19,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:19,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:19,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:19,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:19,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:19,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80162197] [2021-02-19 17:46:19,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:19,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 17:46:19,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104771689] [2021-02-19 17:46:19,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 17:46:19,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:19,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 17:46:19,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:46:19,195 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2021-02-19 17:46:19,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:19,408 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2021-02-19 17:46:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:46:19,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2021-02-19 17:46:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:19,416 INFO L225 Difference]: With dead ends: 83 [2021-02-19 17:46:19,417 INFO L226 Difference]: Without dead ends: 81 [2021-02-19 17:46:19,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:46:19,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-02-19 17:46:19,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2021-02-19 17:46:19,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-02-19 17:46:19,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2021-02-19 17:46:19,460 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 14 [2021-02-19 17:46:19,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:19,460 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2021-02-19 17:46:19,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 17:46:19,461 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2021-02-19 17:46:19,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-19 17:46:19,461 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:19,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:46:19,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:46:19,462 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]=== [2021-02-19 17:46:19,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:19,470 INFO L82 PathProgramCache]: Analyzing trace with hash -740181574, now seen corresponding path program 1 times [2021-02-19 17:46:19,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:19,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554904358] [2021-02-19 17:46:19,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:19,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:19,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:46:19,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:46:19,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:46:19,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:46:19,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:19,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:19,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:19,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:19,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554904358] [2021-02-19 17:46:19,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:19,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 17:46:19,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502984188] [2021-02-19 17:46:19,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 17:46:19,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:19,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 17:46:19,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 17:46:19,676 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand 6 states. [2021-02-19 17:46:19,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:19,954 INFO L93 Difference]: Finished difference Result 124 states and 138 transitions. [2021-02-19 17:46:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 17:46:19,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2021-02-19 17:46:19,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:19,956 INFO L225 Difference]: With dead ends: 124 [2021-02-19 17:46:19,956 INFO L226 Difference]: Without dead ends: 120 [2021-02-19 17:46:19,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:46:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-02-19 17:46:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 75. [2021-02-19 17:46:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2021-02-19 17:46:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2021-02-19 17:46:19,966 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 19 [2021-02-19 17:46:19,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:19,966 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2021-02-19 17:46:19,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 17:46:19,967 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2021-02-19 17:46:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-19 17:46:19,968 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:19,968 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] [2021-02-19 17:46:19,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:46:19,968 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]=== [2021-02-19 17:46:19,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:19,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1470788107, now seen corresponding path program 1 times [2021-02-19 17:46:19,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:19,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423272796] [2021-02-19 17:46:19,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:20,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:46:20,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:46:20,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:20,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:20,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423272796] [2021-02-19 17:46:20,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:20,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 17:46:20,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910169856] [2021-02-19 17:46:20,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 17:46:20,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:20,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 17:46:20,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:46:20,047 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand 5 states. [2021-02-19 17:46:20,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:20,248 INFO L93 Difference]: Finished difference Result 134 states and 148 transitions. [2021-02-19 17:46:20,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:46:20,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2021-02-19 17:46:20,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:20,250 INFO L225 Difference]: With dead ends: 134 [2021-02-19 17:46:20,250 INFO L226 Difference]: Without dead ends: 114 [2021-02-19 17:46:20,251 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 [2021-02-19 17:46:20,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-02-19 17:46:20,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 74. [2021-02-19 17:46:20,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-02-19 17:46:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2021-02-19 17:46:20,260 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 20 [2021-02-19 17:46:20,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:20,260 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2021-02-19 17:46:20,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 17:46:20,260 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2021-02-19 17:46:20,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-19 17:46:20,261 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:20,261 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] [2021-02-19 17:46:20,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:46:20,262 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]=== [2021-02-19 17:46:20,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:20,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1304901536, now seen corresponding path program 1 times [2021-02-19 17:46:20,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:20,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360550766] [2021-02-19 17:46:20,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:20,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:46:20,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:20,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:20,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360550766] [2021-02-19 17:46:20,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:20,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:46:20,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653859156] [2021-02-19 17:46:20,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:46:20,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:20,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:46:20,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:46:20,332 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 4 states. [2021-02-19 17:46:20,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:20,508 INFO L93 Difference]: Finished difference Result 139 states and 157 transitions. [2021-02-19 17:46:20,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:46:20,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2021-02-19 17:46:20,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:20,509 INFO L225 Difference]: With dead ends: 139 [2021-02-19 17:46:20,510 INFO L226 Difference]: Without dead ends: 98 [2021-02-19 17:46:20,510 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 [2021-02-19 17:46:20,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-02-19 17:46:20,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 77. [2021-02-19 17:46:20,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-02-19 17:46:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2021-02-19 17:46:20,518 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 24 [2021-02-19 17:46:20,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:20,518 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2021-02-19 17:46:20,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:46:20,518 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2021-02-19 17:46:20,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-19 17:46:20,519 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:20,519 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] [2021-02-19 17:46:20,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 17:46:20,520 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]=== [2021-02-19 17:46:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:20,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1797237457, now seen corresponding path program 1 times [2021-02-19 17:46:20,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:20,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646949249] [2021-02-19 17:46:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:20,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:46:20,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:20,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:20,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646949249] [2021-02-19 17:46:20,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:20,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:46:20,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009214774] [2021-02-19 17:46:20,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:46:20,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:20,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:46:20,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:46:20,589 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand 4 states. [2021-02-19 17:46:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:20,735 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2021-02-19 17:46:20,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:46:20,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-02-19 17:46:20,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:20,737 INFO L225 Difference]: With dead ends: 77 [2021-02-19 17:46:20,737 INFO L226 Difference]: Without dead ends: 75 [2021-02-19 17:46:20,738 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 [2021-02-19 17:46:20,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-02-19 17:46:20,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-02-19 17:46:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2021-02-19 17:46:20,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2021-02-19 17:46:20,745 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 25 [2021-02-19 17:46:20,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:20,745 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2021-02-19 17:46:20,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:46:20,745 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2021-02-19 17:46:20,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-19 17:46:20,746 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:20,746 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] [2021-02-19 17:46:20,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-19 17:46:20,747 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]=== [2021-02-19 17:46:20,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:20,748 INFO L82 PathProgramCache]: Analyzing trace with hash -947223864, now seen corresponding path program 1 times [2021-02-19 17:46:20,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:20,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125610855] [2021-02-19 17:46:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:20,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:20,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:20,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:20,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125610855] [2021-02-19 17:46:20,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:20,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:46:20,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098933969] [2021-02-19 17:46:20,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:46:20,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:20,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:46:20,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:46:20,812 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 4 states. [2021-02-19 17:46:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:20,965 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2021-02-19 17:46:20,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:46:20,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2021-02-19 17:46:20,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:20,966 INFO L225 Difference]: With dead ends: 78 [2021-02-19 17:46:20,966 INFO L226 Difference]: Without dead ends: 76 [2021-02-19 17:46:20,967 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 [2021-02-19 17:46:20,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-02-19 17:46:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-02-19 17:46:20,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-02-19 17:46:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2021-02-19 17:46:20,973 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 27 [2021-02-19 17:46:20,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:20,973 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2021-02-19 17:46:20,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:46:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2021-02-19 17:46:20,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-19 17:46:20,975 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:20,975 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] [2021-02-19 17:46:20,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-19 17:46:20,975 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]=== [2021-02-19 17:46:20,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:20,976 INFO L82 PathProgramCache]: Analyzing trace with hash -947221942, now seen corresponding path program 1 times [2021-02-19 17:46:20,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:20,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047986033] [2021-02-19 17:46:20,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:21,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:21,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-19 17:46:21,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:21,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:21,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:21,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:21,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047986033] [2021-02-19 17:46:21,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:21,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 17:46:21,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652755968] [2021-02-19 17:46:21,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 17:46:21,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:21,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 17:46:21,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:46:21,058 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 5 states. [2021-02-19 17:46:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:21,251 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2021-02-19 17:46:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:46:21,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-02-19 17:46:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:21,252 INFO L225 Difference]: With dead ends: 77 [2021-02-19 17:46:21,252 INFO L226 Difference]: Without dead ends: 75 [2021-02-19 17:46:21,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:46:21,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-02-19 17:46:21,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2021-02-19 17:46:21,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-02-19 17:46:21,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2021-02-19 17:46:21,258 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 27 [2021-02-19 17:46:21,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:21,258 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2021-02-19 17:46:21,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 17:46:21,259 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2021-02-19 17:46:21,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-19 17:46:21,260 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:21,260 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] [2021-02-19 17:46:21,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-19 17:46:21,260 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]=== [2021-02-19 17:46:21,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:21,261 INFO L82 PathProgramCache]: Analyzing trace with hash 442870869, now seen corresponding path program 1 times [2021-02-19 17:46:21,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:21,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961691425] [2021-02-19 17:46:21,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:21,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:21,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:46:21,363 WARN L141 QuantifierPusher]: treesize reduction 10, result has 81.1 percent of original size [2021-02-19 17:46:21,364 WARN L147 QuantifierPusher]: treesize reduction 10, result has 81.1 percent of original size 43 [2021-02-19 17:46:21,380 WARN L141 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-02-19 17:46:21,381 WARN L147 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size 39 [2021-02-19 17:46:21,396 WARN L141 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-02-19 17:46:21,397 WARN L147 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size 22 [2021-02-19 17:46:21,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:46:21,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:21,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:21,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:21,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:21,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961691425] [2021-02-19 17:46:21,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:21,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:46:21,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177757543] [2021-02-19 17:46:21,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:46:21,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:21,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:46:21,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:46:21,474 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand 8 states. [2021-02-19 17:46:22,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:22,177 INFO L93 Difference]: Finished difference Result 227 states and 252 transitions. [2021-02-19 17:46:22,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 17:46:22,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2021-02-19 17:46:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:22,181 INFO L225 Difference]: With dead ends: 227 [2021-02-19 17:46:22,181 INFO L226 Difference]: Without dead ends: 225 [2021-02-19 17:46:22,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-02-19 17:46:22,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-02-19 17:46:22,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 90. [2021-02-19 17:46:22,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-02-19 17:46:22,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 103 transitions. [2021-02-19 17:46:22,190 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 103 transitions. Word has length 28 [2021-02-19 17:46:22,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:22,191 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 103 transitions. [2021-02-19 17:46:22,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:46:22,191 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 103 transitions. [2021-02-19 17:46:22,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-19 17:46:22,192 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:22,192 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] [2021-02-19 17:46:22,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-19 17:46:22,193 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]=== [2021-02-19 17:46:22,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:22,193 INFO L82 PathProgramCache]: Analyzing trace with hash 2131814611, now seen corresponding path program 1 times [2021-02-19 17:46:22,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:22,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393048570] [2021-02-19 17:46:22,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:22,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:22,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-19 17:46:22,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-19 17:46:22,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:22,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:22,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:22,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:22,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393048570] [2021-02-19 17:46:22,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:22,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 17:46:22,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992632370] [2021-02-19 17:46:22,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 17:46:22,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:22,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 17:46:22,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:46:22,294 INFO L87 Difference]: Start difference. First operand 90 states and 103 transitions. Second operand 5 states. [2021-02-19 17:46:22,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:22,585 INFO L93 Difference]: Finished difference Result 199 states and 226 transitions. [2021-02-19 17:46:22,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:46:22,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2021-02-19 17:46:22,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:22,589 INFO L225 Difference]: With dead ends: 199 [2021-02-19 17:46:22,589 INFO L226 Difference]: Without dead ends: 138 [2021-02-19 17:46:22,590 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 [2021-02-19 17:46:22,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-02-19 17:46:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 90. [2021-02-19 17:46:22,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-02-19 17:46:22,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2021-02-19 17:46:22,600 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 28 [2021-02-19 17:46:22,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:22,603 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2021-02-19 17:46:22,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 17:46:22,603 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2021-02-19 17:46:22,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-02-19 17:46:22,612 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:22,612 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] [2021-02-19 17:46:22,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-19 17:46:22,613 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]=== [2021-02-19 17:46:22,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:22,613 INFO L82 PathProgramCache]: Analyzing trace with hash 543466709, now seen corresponding path program 1 times [2021-02-19 17:46:22,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:22,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740747174] [2021-02-19 17:46:22,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:22,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:22,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-19 17:46:22,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-19 17:46:22,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-19 17:46:22,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:46:22,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:22,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:22,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:22,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:46:22,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740747174] [2021-02-19 17:46:22,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:22,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-19 17:46:22,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61344565] [2021-02-19 17:46:22,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 17:46:22,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:22,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 17:46:22,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-19 17:46:22,760 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand 7 states. [2021-02-19 17:46:23,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:23,221 INFO L93 Difference]: Finished difference Result 206 states and 234 transitions. [2021-02-19 17:46:23,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 17:46:23,222 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2021-02-19 17:46:23,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:23,223 INFO L225 Difference]: With dead ends: 206 [2021-02-19 17:46:23,224 INFO L226 Difference]: Without dead ends: 159 [2021-02-19 17:46:23,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-02-19 17:46:23,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-02-19 17:46:23,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 97. [2021-02-19 17:46:23,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-02-19 17:46:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2021-02-19 17:46:23,234 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 28 [2021-02-19 17:46:23,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:23,234 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2021-02-19 17:46:23,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-19 17:46:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2021-02-19 17:46:23,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-19 17:46:23,236 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:23,236 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] [2021-02-19 17:46:23,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-19 17:46:23,236 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]=== [2021-02-19 17:46:23,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:23,237 INFO L82 PathProgramCache]: Analyzing trace with hash -242151861, now seen corresponding path program 1 times [2021-02-19 17:46:23,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:23,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665259601] [2021-02-19 17:46:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:23,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:23,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:23,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:23,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-19 17:46:23,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:23,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:23,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:46:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:46:23,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:46:23,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:46:23,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 17:46:23,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665259601] [2021-02-19 17:46:23,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:46:23,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:46:23,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857068176] [2021-02-19 17:46:23,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:46:23,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:46:23,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:46:23,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:46:23,304 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand 4 states. [2021-02-19 17:46:23,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:46:23,482 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2021-02-19 17:46:23,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 17:46:23,482 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-02-19 17:46:23,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:46:23,483 INFO L225 Difference]: With dead ends: 97 [2021-02-19 17:46:23,483 INFO L226 Difference]: Without dead ends: 95 [2021-02-19 17:46:23,484 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 [2021-02-19 17:46:23,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-02-19 17:46:23,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-02-19 17:46:23,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2021-02-19 17:46:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 108 transitions. [2021-02-19 17:46:23,491 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 108 transitions. Word has length 30 [2021-02-19 17:46:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:46:23,492 INFO L480 AbstractCegarLoop]: Abstraction has 95 states and 108 transitions. [2021-02-19 17:46:23,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:46:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 108 transitions. [2021-02-19 17:46:23,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-19 17:46:23,493 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:46:23,493 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] [2021-02-19 17:46:23,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-19 17:46:23,493 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]=== [2021-02-19 17:46:23,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:46:23,494 INFO L82 PathProgramCache]: Analyzing trace with hash -569355741, now seen corresponding path program 1 times [2021-02-19 17:46:23,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:46:23,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565813196] [2021-02-19 17:46:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:46:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:46:23,512 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:46:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:46:23,528 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:46:23,561 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:46:23,562 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:46:23,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-19 17:46:23,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:46:23 BoogieIcfgContainer [2021-02-19 17:46:23,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:46:23,621 INFO L168 Benchmark]: Toolchain (without parser) took 7580.15 ms. Allocated memory was 157.3 MB in the beginning and 226.5 MB in the end (delta: 69.2 MB). Free memory was 130.8 MB in the beginning and 150.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 49.5 MB. Max. memory is 8.0 GB. [2021-02-19 17:46:23,622 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory is still 129.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:46:23,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.06 ms. Allocated memory is still 157.3 MB. Free memory was 129.7 MB in the beginning and 137.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 8.0 GB. [2021-02-19 17:46:23,628 INFO L168 Benchmark]: Boogie Preprocessor took 85.08 ms. Allocated memory is still 157.3 MB. Free memory was 137.5 MB in the beginning and 134.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:46:23,629 INFO L168 Benchmark]: RCFGBuilder took 1111.36 ms. Allocated memory is still 157.3 MB. Free memory was 134.4 MB in the beginning and 78.8 MB in the end (delta: 55.6 MB). Peak memory consumption was 55.6 MB. Max. memory is 8.0 GB. [2021-02-19 17:46:23,629 INFO L168 Benchmark]: TraceAbstraction took 5796.21 ms. Allocated memory was 157.3 MB in the beginning and 226.5 MB in the end (delta: 69.2 MB). Free memory was 78.3 MB in the beginning and 150.8 MB in the end (delta: -72.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:46:23,633 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory is still 129.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 564.06 ms. Allocated memory is still 157.3 MB. Free memory was 129.7 MB in the beginning and 137.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 85.08 ms. Allocated memory is still 157.3 MB. Free memory was 137.5 MB in the beginning and 134.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1111.36 ms. Allocated memory is still 157.3 MB. Free memory was 134.4 MB in the beginning and 78.8 MB in the end (delta: 55.6 MB). Peak memory consumption was 55.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5796.21 ms. Allocated memory was 157.3 MB in the beginning and 226.5 MB in the end (delta: 69.2 MB). Free memory was 78.3 MB in the beginning and 150.8 MB in the end (delta: -72.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1040]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1003] SLL* list = malloc(sizeof(SLL)); [L1004] list->next = ((void*)0) [L1005] list->prev = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(!(list != ((void*)0))) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1006] list->inner = malloc(sizeof(SLL)) [L1006] EXPR list->inner [L1006] list->inner->next = ((void*)0) [L1006] EXPR list->inner [L1006] list->inner->inner = ((void*)0) [L1006] EXPR list->inner [L1006] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, list->inner != ((void*)0) || list->inner == ((void*)0)=1, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1006] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1008] SLL* end = list; VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1022] end = ((void*)0) [L1023] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1026] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1028] COND TRUE ((void*)0) != end [L1030] int len = 0; [L1031] EXPR end->inner [L1031] SLL* inner = end->inner; [L1032] COND TRUE ((void*)0) != inner VAL [end={-1:0}, inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1034] COND TRUE len == 0 [L1035] len = 1 VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1038] COND FALSE !(!(((void*)0) != inner)) VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1039] EXPR inner->inner VAL [end={-1:0}, inner={-2:0}, inner->inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1039] COND FALSE !(!(((void*)0) == inner->inner)) [L1040] EXPR inner->next VAL [end={-1:0}, inner={-2:0}, inner->next={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] [L1040] COND TRUE !(((void*)0) != inner->next) [L1040] reach_error() VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.6s, OverallIterations: 14, TraceHistogramMax: 1, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1023 SDtfs, 922 SDslu, 1282 SDs, 0 SdLazy, 1763 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=12, 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, 13 MinimizatonAttempts, 373 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 37949 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, 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...