/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 17:28:06,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 17:28:06,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 17:28:06,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 17:28:06,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 17:28:06,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 17:28:06,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 17:28:06,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 17:28:06,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 17:28:06,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 17:28:06,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 17:28:06,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 17:28:06,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 17:28:06,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 17:28:06,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 17:28:06,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 17:28:06,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 17:28:06,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 17:28:06,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 17:28:06,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 17:28:06,974 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 17:28:06,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 17:28:06,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 17:28:06,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 17:28:06,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 17:28:06,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 17:28:06,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 17:28:06,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 17:28:06,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 17:28:06,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 17:28:06,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 17:28:06,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 17:28:06,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 17:28:06,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 17:28:06,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 17:28:06,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 17:28:06,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 17:28:06,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 17:28:06,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 17:28:06,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 17:28:06,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 17:28:06,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 17:28:06,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 17:28:07,007 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 17:28:07,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 17:28:07,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 17:28:07,009 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 17:28:07,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 17:28:07,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 17:28:07,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 17:28:07,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 17:28:07,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 17:28:07,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 17:28:07,011 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 17:28:07,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 17:28:07,011 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 17:28:07,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 17:28:07,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 17:28:07,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 17:28:07,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 17:28:07,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 17:28:07,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 17:28:07,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 17:28:07,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 17:28:07,013 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 17:28:07,013 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 17:28:07,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 17:28:07,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 17:28:07,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 17:28:07,234 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 17:28:07,237 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 17:28:07,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2022-03-18 17:28:07,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c28b1c2c/50e4c0ad5827427498cdb14251babfda/FLAG9570f6988 [2022-03-18 17:28:07,657 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 17:28:07,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2022-03-18 17:28:07,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c28b1c2c/50e4c0ad5827427498cdb14251babfda/FLAG9570f6988 [2022-03-18 17:28:08,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c28b1c2c/50e4c0ad5827427498cdb14251babfda [2022-03-18 17:28:08,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 17:28:08,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 17:28:08,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 17:28:08,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 17:28:08,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 17:28:08,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1620b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08, skipping insertion in model container [2022-03-18 17:28:08,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 17:28:08,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 17:28:08,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c[11342,11355] [2022-03-18 17:28:08,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 17:28:08,269 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 17:28:08,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c[11342,11355] [2022-03-18 17:28:08,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 17:28:08,326 INFO L208 MainTranslator]: Completed translation [2022-03-18 17:28:08,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08 WrapperNode [2022-03-18 17:28:08,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 17:28:08,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 17:28:08,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 17:28:08,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 17:28:08,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 17:28:08,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 17:28:08,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 17:28:08,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 17:28:08,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08" (1/1) ... [2022-03-18 17:28:08,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 17:28:08,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 17:28:08,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 17:28:08,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 17:28:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 17:28:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2022-03-18 17:28:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 17:28:08,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-18 17:28:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 17:28:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 17:28:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 17:28:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 17:28:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-18 17:28:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2022-03-18 17:28:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2022-03-18 17:28:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2022-03-18 17:28:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2022-03-18 17:28:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2022-03-18 17:28:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2022-03-18 17:28:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2022-03-18 17:28:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 17:28:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2022-03-18 17:28:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2022-03-18 17:28:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-03-18 17:28:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 17:28:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-03-18 17:28:08,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 17:28:08,647 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 17:28:08,648 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 17:28:09,031 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 17:28:09,040 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 17:28:09,040 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-03-18 17:28:09,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 05:28:09 BoogieIcfgContainer [2022-03-18 17:28:09,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 17:28:09,043 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 17:28:09,043 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 17:28:09,044 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 17:28:09,046 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 05:28:09" (1/1) ... [2022-03-18 17:28:09,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 05:28:09 BasicIcfg [2022-03-18 17:28:09,083 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 17:28:09,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 17:28:09,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 17:28:09,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 17:28:09,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 05:28:08" (1/4) ... [2022-03-18 17:28:09,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ea9761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 05:28:09, skipping insertion in model container [2022-03-18 17:28:09,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 05:28:08" (2/4) ... [2022-03-18 17:28:09,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ea9761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 05:28:09, skipping insertion in model container [2022-03-18 17:28:09,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 05:28:09" (3/4) ... [2022-03-18 17:28:09,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ea9761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 05:28:09, skipping insertion in model container [2022-03-18 17:28:09,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 05:28:09" (4/4) ... [2022-03-18 17:28:09,089 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_2.cJordan [2022-03-18 17:28:09,092 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 17:28:09,092 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 17:28:09,123 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 17:28:09,127 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 17:28:09,127 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 17:28:09,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-03-18 17:28:09,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-18 17:28:09,146 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 17:28:09,146 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 17:28:09,146 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 17:28:09,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 17:28:09,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1557733986, now seen corresponding path program 1 times [2022-03-18 17:28:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 17:28:09,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170448819] [2022-03-18 17:28:09,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 17:28:09,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 17:28:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 17:28:09,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 17:28:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 17:28:09,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-03-18 17:28:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 17:28:09,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-03-18 17:28:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 17:28:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 17:28:09,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 17:28:09,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170448819] [2022-03-18 17:28:09,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170448819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 17:28:09,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 17:28:09,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 17:28:09,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73638535] [2022-03-18 17:28:09,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 17:28:09,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 17:28:09,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 17:28:09,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 17:28:09,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 17:28:09,548 INFO L87 Difference]: Start difference. First operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-18 17:28:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 17:28:09,899 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2022-03-18 17:28:09,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 17:28:09,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-03-18 17:28:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 17:28:09,908 INFO L225 Difference]: With dead ends: 130 [2022-03-18 17:28:09,908 INFO L226 Difference]: Without dead ends: 119 [2022-03-18 17:28:09,909 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-18 17:28:09,911 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 238 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-18 17:28:09,912 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 138 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-18 17:28:09,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-03-18 17:28:09,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-03-18 17:28:09,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.4574468085106382) internal successors, (137), 95 states have internal predecessors, (137), 16 states have call successors, (16), 11 states have call predecessors, (16), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-03-18 17:28:09,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2022-03-18 17:28:09,944 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2022-03-18 17:28:09,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 17:28:09,944 INFO L478 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2022-03-18 17:28:09,944 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-18 17:28:09,944 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2022-03-18 17:28:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-03-18 17:28:09,946 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 17:28:09,946 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 17:28:09,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 17:28:09,947 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 17:28:09,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 17:28:09,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1372227393, now seen corresponding path program 1 times [2022-03-18 17:28:09,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 17:28:09,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816240842] [2022-03-18 17:28:09,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 17:28:09,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 17:28:09,981 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-18 17:28:09,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1405884146] [2022-03-18 17:28:09,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 17:28:09,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 17:28:09,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 17:28:09,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 17:28:10,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 17:28:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 17:28:10,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-18 17:28:10,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 17:28:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 17:28:10,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-18 17:28:10,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 17:28:10,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816240842] [2022-03-18 17:28:10,229 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-18 17:28:10,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405884146] [2022-03-18 17:28:10,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405884146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 17:28:10,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 17:28:10,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 17:28:10,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175846152] [2022-03-18 17:28:10,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 17:28:10,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 17:28:10,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 17:28:10,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 17:28:10,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 17:28:10,232 INFO L87 Difference]: Start difference. First operand 119 states and 165 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-18 17:28:10,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 17:28:10,245 INFO L93 Difference]: Finished difference Result 117 states and 163 transitions. [2022-03-18 17:28:10,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 17:28:10,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-03-18 17:28:10,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 17:28:10,246 INFO L225 Difference]: With dead ends: 117 [2022-03-18 17:28:10,246 INFO L226 Difference]: Without dead ends: 0 [2022-03-18 17:28:10,246 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-18 17:28:10,247 INFO L912 BasicCegarLoop]: 160 mSDtfsCounter, 5 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 17:28:10,247 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 477 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 17:28:10,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-18 17:28:10,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-18 17:28:10,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-18 17:28:10,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-18 17:28:10,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-03-18 17:28:10,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 17:28:10,248 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-18 17:28:10,248 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-18 17:28:10,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-18 17:28:10,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-18 17:28:10,251 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-18 17:28:10,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-18 17:28:10,468 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 17:28:10,471 INFO L718 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-18 17:28:10,472 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-18 17:28:10,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 05:28:10 BasicIcfg [2022-03-18 17:28:10,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-18 17:28:10,474 INFO L158 Benchmark]: Toolchain (without parser) took 2433.58ms. Allocated memory is still 175.1MB. Free memory was 126.7MB in the beginning and 69.2MB in the end (delta: 57.5MB). Peak memory consumption was 58.6MB. Max. memory is 8.0GB. [2022-03-18 17:28:10,475 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 175.1MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 17:28:10,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.15ms. Allocated memory is still 175.1MB. Free memory was 126.5MB in the beginning and 147.3MB in the end (delta: -20.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-03-18 17:28:10,475 INFO L158 Benchmark]: Boogie Preprocessor took 55.51ms. Allocated memory is still 175.1MB. Free memory was 147.3MB in the beginning and 143.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-18 17:28:10,476 INFO L158 Benchmark]: RCFGBuilder took 658.92ms. Allocated memory is still 175.1MB. Free memory was 143.7MB in the beginning and 114.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-03-18 17:28:10,476 INFO L158 Benchmark]: IcfgTransformer took 40.26ms. Allocated memory is still 175.1MB. Free memory was 114.4MB in the beginning and 111.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-18 17:28:10,476 INFO L158 Benchmark]: TraceAbstraction took 1389.67ms. Allocated memory is still 175.1MB. Free memory was 110.6MB in the beginning and 69.2MB in the end (delta: 41.4MB). Peak memory consumption was 42.3MB. Max. memory is 8.0GB. [2022-03-18 17:28:10,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 175.1MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 284.15ms. Allocated memory is still 175.1MB. Free memory was 126.5MB in the beginning and 147.3MB in the end (delta: -20.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.51ms. Allocated memory is still 175.1MB. Free memory was 147.3MB in the beginning and 143.7MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 658.92ms. Allocated memory is still 175.1MB. Free memory was 143.7MB in the beginning and 114.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * IcfgTransformer took 40.26ms. Allocated memory is still 175.1MB. Free memory was 114.4MB in the beginning and 111.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1389.67ms. Allocated memory is still 175.1MB. Free memory was 110.6MB in the beginning and 69.2MB in the end (delta: 41.4MB). Peak memory consumption was 42.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 463]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 250 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 615 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 322 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 293 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 1 NumberOfNonLiveVariables, 546 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-18 17:28:10,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...