/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_5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 06:08:34,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 06:08:34,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 06:08:34,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 06:08:34,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 06:08:34,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 06:08:34,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 06:08:34,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 06:08:34,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 06:08:34,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 06:08:34,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 06:08:34,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 06:08:34,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 06:08:34,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 06:08:34,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 06:08:34,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 06:08:34,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 06:08:34,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 06:08:34,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 06:08:34,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 06:08:34,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 06:08:34,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 06:08:34,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 06:08:34,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 06:08:34,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-06 06:08:34,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-06 06:08:34,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-06 06:08:34,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-06 06:08:34,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-06 06:08:34,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-06 06:08:34,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-06 06:08:34,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-06 06:08:34,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-06 06:08:34,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-06 06:08:34,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-06 06:08:34,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-06 06:08:34,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-06 06:08:34,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-06 06:08:34,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 06:08:34,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 06:08:34,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 06:08:34,305 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 06:08:34,321 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 06:08:34,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 06:08:34,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 06:08:34,322 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 06:08:34,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 06:08:34,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 06:08:34,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 06:08:34,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 06:08:34,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 06:08:34,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 06:08:34,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 06:08:34,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 06:08:34,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 06:08:34,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 06:08:34,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 06:08:34,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 06:08:34,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 06:08:34,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 06:08:34,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 06:08:34,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 06:08:34,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 06:08:34,335 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 06:08:34,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 06:08:34,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 06:08:34,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 06:08:34,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 06:08:34,715 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 06:08:34,716 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 06:08:34,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2021-05-06 06:08:34,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f337d8a/95a23ecfcafe49329202bcfe0c1252af/FLAG3303b719d [2021-05-06 06:08:35,179 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 06:08:35,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2021-05-06 06:08:35,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f337d8a/95a23ecfcafe49329202bcfe0c1252af/FLAG3303b719d [2021-05-06 06:08:35,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1f337d8a/95a23ecfcafe49329202bcfe0c1252af [2021-05-06 06:08:35,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 06:08:35,197 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 06:08:35,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 06:08:35,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 06:08:35,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 06:08:35,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 06:08:35" (1/1) ... [2021-05-06 06:08:35,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702dca70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35, skipping insertion in model container [2021-05-06 06:08:35,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 06:08:35" (1/1) ... [2021-05-06 06:08:35,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 06:08:35,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 06:08:35,463 WARN L224 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_5.c[11314,11327] [2021-05-06 06:08:35,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 06:08:35,471 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 06:08:35,512 WARN L224 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_5.c[11314,11327] [2021-05-06 06:08:35,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 06:08:35,527 INFO L208 MainTranslator]: Completed translation [2021-05-06 06:08:35,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35 WrapperNode [2021-05-06 06:08:35,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 06:08:35,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 06:08:35,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 06:08:35,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 06:08:35,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35" (1/1) ... [2021-05-06 06:08:35,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35" (1/1) ... [2021-05-06 06:08:35,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35" (1/1) ... [2021-05-06 06:08:35,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35" (1/1) ... [2021-05-06 06:08:35,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35" (1/1) ... [2021-05-06 06:08:35,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35" (1/1) ... [2021-05-06 06:08:35,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35" (1/1) ... [2021-05-06 06:08:35,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 06:08:35,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 06:08:35,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 06:08:35,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 06:08:35,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35" (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 [2021-05-06 06:08:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 06:08:35,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 06:08:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 06:08:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 06:08:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-05-06 06:08:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-05-06 06:08:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-05-06 06:08:35,660 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-05-06 06:08:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-05-06 06:08:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-05-06 06:08:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-05-06 06:08:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-05-06 06:08:35,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 06:08:35,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 06:08:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 06:08:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 06:08:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 06:08:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 06:08:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 06:08:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-05-06 06:08:35,662 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-06 06:08:35,663 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-06 06:08:35,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 06:08:36,378 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 06:08:36,378 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-05-06 06:08:36,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:08:36 BoogieIcfgContainer [2021-05-06 06:08:36,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 06:08:36,380 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 06:08:36,384 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 06:08:36,385 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 06:08:36,387 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:08:36" (1/1) ... [2021-05-06 06:08:36,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 06:08:36 BasicIcfg [2021-05-06 06:08:36,421 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 06:08:36,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 06:08:36,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 06:08:36,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 06:08:36,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 06:08:35" (1/4) ... [2021-05-06 06:08:36,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33eca586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 06:08:36, skipping insertion in model container [2021-05-06 06:08:36,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 06:08:35" (2/4) ... [2021-05-06 06:08:36,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33eca586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 06:08:36, skipping insertion in model container [2021-05-06 06:08:36,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 06:08:36" (3/4) ... [2021-05-06 06:08:36,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33eca586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 06:08:36, skipping insertion in model container [2021-05-06 06:08:36,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 06:08:36" (4/4) ... [2021-05-06 06:08:36,428 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_5.cJordan [2021-05-06 06:08:36,432 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 06:08:36,436 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 06:08:36,447 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 06:08:36,470 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 06:08:36,470 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 06:08:36,470 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 06:08:36,470 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 06:08:36,471 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 06:08:36,471 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 06:08:36,471 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 06:08:36,471 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 06:08:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 100 states have (on average 1.54) internal successors, (154), 102 states have internal predecessors, (154), 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) [2021-05-06 06:08:36,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-06 06:08:36,504 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:08:36,505 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:08:36,505 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:08:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:08:36,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1746528498, now seen corresponding path program 1 times [2021-05-06 06:08:36,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:08:36,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406193030] [2021-05-06 06:08:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:08:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:36,938 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-06 06:08:36,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:08:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:36,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-06 06:08:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:37,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-06 06:08:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:37,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-06 06:08:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-05-06 06:08:37,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:08:37,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406193030] [2021-05-06 06:08:37,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406193030] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:08:37,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 06:08:37,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 06:08:37,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782532334] [2021-05-06 06:08:37,018 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 06:08:37,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:08:37,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 06:08:37,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 06:08:37,028 INFO L87 Difference]: Start difference. First operand has 129 states, 100 states have (on average 1.54) internal successors, (154), 102 states have internal predecessors, (154), 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 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-06 06:08:37,169 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-06 06:08:37,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:08:37,523 INFO L93 Difference]: Finished difference Result 131 states and 179 transitions. [2021-05-06 06:08:37,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 06:08:37,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2021-05-06 06:08:37,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:08:37,530 INFO L225 Difference]: With dead ends: 131 [2021-05-06 06:08:37,531 INFO L226 Difference]: Without dead ends: 120 [2021-05-06 06:08:37,531 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 292.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-06 06:08:37,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-05-06 06:08:37,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-05-06 06:08:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 96 states have internal predecessors, (139), 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) [2021-05-06 06:08:37,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 167 transitions. [2021-05-06 06:08:37,560 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 167 transitions. Word has length 47 [2021-05-06 06:08:37,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:08:37,560 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 167 transitions. [2021-05-06 06:08:37,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-05-06 06:08:37,560 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 167 transitions. [2021-05-06 06:08:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-06 06:08:37,562 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 06:08:37,563 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 06:08:37,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 06:08:37,563 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 06:08:37,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 06:08:37,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1478723201, now seen corresponding path program 1 times [2021-05-06 06:08:37,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 06:08:37,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543288913] [2021-05-06 06:08:37,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 06:08:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:37,796 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-06 06:08:37,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 06:08:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:37,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-06 06:08:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:37,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-06 06:08:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:37,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-06 06:08:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 06:08:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 06:08:37,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 06:08:37,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543288913] [2021-05-06 06:08:37,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543288913] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 06:08:37,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 06:08:37,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-06 06:08:37,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309275452] [2021-05-06 06:08:37,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-06 06:08:37,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 06:08:37,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-06 06:08:37,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-06 06:08:37,845 INFO L87 Difference]: Start difference. First operand 120 states and 167 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-05-06 06:08:38,009 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-06 06:08:38,556 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-06 06:08:38,730 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-06 06:08:38,863 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-06 06:08:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 06:08:39,000 INFO L93 Difference]: Finished difference Result 118 states and 164 transitions. [2021-05-06 06:08:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 06:08:39,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2021-05-06 06:08:39,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 06:08:39,001 INFO L225 Difference]: With dead ends: 118 [2021-05-06 06:08:39,001 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 06:08:39,002 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 767.6ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-05-06 06:08:39,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 06:08:39,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 06:08:39,002 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) [2021-05-06 06:08:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 06:08:39,003 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2021-05-06 06:08:39,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 06:08:39,004 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 06:08:39,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-05-06 06:08:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 06:08:39,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 06:08:39,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 06:08:39,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 06:08:39 BasicIcfg [2021-05-06 06:08:39,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 06:08:39,011 INFO L168 Benchmark]: Toolchain (without parser) took 3812.63 ms. Allocated memory was 184.5 MB in the beginning and 271.6 MB in the end (delta: 87.0 MB). Free memory was 149.2 MB in the beginning and 151.2 MB in the end (delta: -2.0 MB). Peak memory consumption was 85.2 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:39,012 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 184.5 MB. Free memory is still 166.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 06:08:39,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.94 ms. Allocated memory is still 184.5 MB. Free memory was 149.0 MB in the beginning and 160.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:39,017 INFO L168 Benchmark]: Boogie Preprocessor took 63.10 ms. Allocated memory is still 184.5 MB. Free memory was 160.0 MB in the beginning and 156.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:39,018 INFO L168 Benchmark]: RCFGBuilder took 787.01 ms. Allocated memory is still 184.5 MB. Free memory was 156.3 MB in the beginning and 93.4 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:39,018 INFO L168 Benchmark]: IcfgTransformer took 40.80 ms. Allocated memory is still 184.5 MB. Free memory was 93.4 MB in the beginning and 90.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:39,019 INFO L168 Benchmark]: TraceAbstraction took 2586.98 ms. Allocated memory was 184.5 MB in the beginning and 271.6 MB in the end (delta: 87.0 MB). Free memory was 90.3 MB in the beginning and 151.2 MB in the end (delta: -61.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. [2021-05-06 06:08:39,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 184.5 MB. Free memory is still 166.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 329.94 ms. Allocated memory is still 184.5 MB. Free memory was 149.0 MB in the beginning and 160.0 MB in the end (delta: -11.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.10 ms. Allocated memory is still 184.5 MB. Free memory was 160.0 MB in the beginning and 156.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 787.01 ms. Allocated memory is still 184.5 MB. Free memory was 156.3 MB in the beginning and 93.4 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. * IcfgTransformer took 40.80 ms. Allocated memory is still 184.5 MB. Free memory was 93.4 MB in the beginning and 90.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2586.98 ms. Allocated memory was 184.5 MB in the beginning and 271.6 MB in the end (delta: 87.0 MB). Free memory was 90.3 MB in the beginning and 151.2 MB in the end (delta: -61.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2536.5ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 24.6ms, AutomataDifference: 1670.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 275 SDtfs, 407 SDslu, 223 SDs, 0 SdLazy, 519 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 722.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1060.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 20.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.1ms SsaConstructionTime, 117.4ms SatisfiabilityAnalysisTime, 572.4ms InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 3/3 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! Received shutdown request...