/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 03:33:24,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 03:33:24,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 03:33:24,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 03:33:24,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 03:33:24,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 03:33:24,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 03:33:24,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 03:33:24,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 03:33:24,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 03:33:24,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 03:33:24,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 03:33:24,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 03:33:24,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 03:33:24,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 03:33:24,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 03:33:24,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 03:33:24,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 03:33:24,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 03:33:24,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 03:33:24,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 03:33:24,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 03:33:24,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 03:33:24,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 03:33:24,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 03:33:24,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 03:33:24,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 03:33:24,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 03:33:24,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 03:33:24,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 03:33:24,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 03:33:24,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 03:33:24,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 03:33:24,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 03:33:24,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 03:33:24,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 03:33:24,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 03:33:24,370 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 03:33:24,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 03:33:24,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 03:33:24,373 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 03:33:24,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 03:33:24,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 03:33:24,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 03:33:24,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 03:33:24,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 03:33:24,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 03:33:24,374 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 03:33:24,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 03:33:24,375 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 03:33:24,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 03:33:24,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 03:33:24,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 03:33:24,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 03:33:24,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 03:33:24,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:33:24,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 03:33:24,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 03:33:24,376 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 03:33:24,377 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 03:33:24,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 03:33:24,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 03:33:24,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 03:33:24,665 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 03:33:24,665 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 03:33:24,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c [2021-05-01 03:33:24,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d86cb40/2f26a0cb1c22464c867dfabe019c8aa7/FLAG3c16d30a7 [2021-05-01 03:33:25,184 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 03:33:25,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c [2021-05-01 03:33:25,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d86cb40/2f26a0cb1c22464c867dfabe019c8aa7/FLAG3c16d30a7 [2021-05-01 03:33:25,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d86cb40/2f26a0cb1c22464c867dfabe019c8aa7 [2021-05-01 03:33:25,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 03:33:25,204 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 03:33:25,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 03:33:25,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 03:33:25,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 03:33:25,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:33:25" (1/1) ... [2021-05-01 03:33:25,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be3a149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25, skipping insertion in model container [2021-05-01 03:33:25,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:33:25" (1/1) ... [2021-05-01 03:33:25,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 03:33:25,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 03:33:25,444 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_1.c[11890,11903] [2021-05-01 03:33:25,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:33:25,460 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 03:33:25,539 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_1.c[11890,11903] [2021-05-01 03:33:25,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:33:25,556 INFO L208 MainTranslator]: Completed translation [2021-05-01 03:33:25,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25 WrapperNode [2021-05-01 03:33:25,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 03:33:25,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 03:33:25,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 03:33:25,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 03:33:25,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25" (1/1) ... [2021-05-01 03:33:25,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25" (1/1) ... [2021-05-01 03:33:25,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25" (1/1) ... [2021-05-01 03:33:25,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25" (1/1) ... [2021-05-01 03:33:25,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25" (1/1) ... [2021-05-01 03:33:25,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25" (1/1) ... [2021-05-01 03:33:25,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25" (1/1) ... [2021-05-01 03:33:25,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 03:33:25,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 03:33:25,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 03:33:25,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 03:33:25,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25" (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 [2021-05-01 03:33:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 03:33:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 03:33:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 03:33:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 03:33:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-05-01 03:33:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_107 [2021-05-01 03:33:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_110 [2021-05-01 03:33:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_113 [2021-05-01 03:33:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_114 [2021-05-01 03:33:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_115 [2021-05-01 03:33:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_117 [2021-05-01 03:33:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_118 [2021-05-01 03:33:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 03:33:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 03:33:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 03:33:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 03:33:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 03:33:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 03:33:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 03:33:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-05-01 03:33:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-01 03:33:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_107 [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_110 [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_113 [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_114 [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_115 [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_117 [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_118 [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 03:33:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 03:33:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 03:33:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 03:33:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-01 03:33:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-01 03:33:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 03:33:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-01 03:33:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 03:33:26,346 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 03:33:26,347 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-05-01 03:33:26,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:33:26 BoogieIcfgContainer [2021-05-01 03:33:26,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 03:33:26,348 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 03:33:26,348 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 03:33:26,349 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 03:33:26,351 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:33:26" (1/1) ... [2021-05-01 03:33:26,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:33:26 BasicIcfg [2021-05-01 03:33:26,369 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 03:33:26,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 03:33:26,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 03:33:26,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 03:33:26,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 03:33:25" (1/4) ... [2021-05-01 03:33:26,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2523a16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:33:26, skipping insertion in model container [2021-05-01 03:33:26,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:25" (2/4) ... [2021-05-01 03:33:26,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2523a16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:33:26, skipping insertion in model container [2021-05-01 03:33:26,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:33:26" (3/4) ... [2021-05-01 03:33:26,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2523a16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:33:26, skipping insertion in model container [2021-05-01 03:33:26,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:33:26" (4/4) ... [2021-05-01 03:33:26,374 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_1.cJordan [2021-05-01 03:33:26,377 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 03:33:26,381 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 03:33:26,393 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 03:33:26,406 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 03:33:26,406 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 03:33:26,406 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 03:33:26,406 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 03:33:26,406 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 03:33:26,406 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 03:33:26,406 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 03:33:26,406 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 03:33:26,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 98 states have (on average 1.5408163265306123) internal successors, (151), 100 states have internal predecessors, (151), 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) [2021-05-01 03:33:26,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-01 03:33:26,425 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:33:26,425 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:33:26,425 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:33:26,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:33:26,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1019923025, now seen corresponding path program 1 times [2021-05-01 03:33:26,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:33:26,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609074477] [2021-05-01 03:33:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:33:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:26,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:26,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:26,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:26,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:26,726 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 03:33:26,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:33:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:26,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:26,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:26,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-01 03:33:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:26,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:26,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:26,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:26,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:26,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-01 03:33:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:26,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:26,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:26,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:26,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:26,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 03:33:26,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:33:26,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609074477] [2021-05-01 03:33:26,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609074477] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:33:26,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:33:26,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 03:33:26,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378309537] [2021-05-01 03:33:26,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 03:33:26,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:33:26,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 03:33:26,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 03:33:26,803 INFO L87 Difference]: Start difference. First operand has 127 states, 98 states have (on average 1.5408163265306123) internal successors, (151), 100 states have internal predecessors, (151), 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 6.5) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-05-01 03:33:26,942 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 03:33:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:33:27,289 INFO L93 Difference]: Finished difference Result 129 states and 176 transitions. [2021-05-01 03:33:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 03:33:27,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 2 states have internal predecessors, (26), 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 38 [2021-05-01 03:33:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:33:27,299 INFO L225 Difference]: With dead ends: 129 [2021-05-01 03:33:27,300 INFO L226 Difference]: Without dead ends: 118 [2021-05-01 03:33:27,301 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 289.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 03:33:27,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-05-01 03:33:27,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-05-01 03:33:27,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 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) [2021-05-01 03:33:27,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 164 transitions. [2021-05-01 03:33:27,346 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 164 transitions. Word has length 38 [2021-05-01 03:33:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:33:27,347 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 164 transitions. [2021-05-01 03:33:27,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 2 states have internal predecessors, (26), 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) [2021-05-01 03:33:27,347 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 164 transitions. [2021-05-01 03:33:27,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-01 03:33:27,354 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:33:27,354 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 03:33:27,354 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 03:33:27,354 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:33:27,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:33:27,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1240866738, now seen corresponding path program 1 times [2021-05-01 03:33:27,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:33:27,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278382964] [2021-05-01 03:33:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:33:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:27,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:27,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:27,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:27,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:33:27,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:27,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 03:33:27,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:27,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:27,555 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 03:33:27,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:33:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:27,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:27,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:27,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-01 03:33:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:27,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:27,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:27,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-01 03:33:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:27,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:27,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 03:33:27,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:33:27,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278382964] [2021-05-01 03:33:27,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278382964] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:33:27,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:33:27,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-01 03:33:27,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885704920] [2021-05-01 03:33:27,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 03:33:27,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:33:27,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 03:33:27,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-01 03:33:27,614 INFO L87 Difference]: Start difference. First operand 118 states and 164 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-01 03:33:27,724 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 03:33:28,130 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-05-01 03:33:28,278 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-05-01 03:33:28,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:33:28,438 INFO L93 Difference]: Finished difference Result 116 states and 162 transitions. [2021-05-01 03:33:28,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 03:33:28,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (9), 4 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 38 [2021-05-01 03:33:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:33:28,438 INFO L225 Difference]: With dead ends: 116 [2021-05-01 03:33:28,439 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 03:33:28,439 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 482.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-05-01 03:33:28,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 03:33:28,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 03:33:28,439 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) [2021-05-01 03:33:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 03:33:28,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2021-05-01 03:33:28,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:33:28,440 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 03:33:28,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-01 03:33:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 03:33:28,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 03:33:28,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 03:33:28,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:33:28 BasicIcfg [2021-05-01 03:33:28,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 03:33:28,449 INFO L168 Benchmark]: Toolchain (without parser) took 3243.99 ms. Allocated memory was 204.5 MB in the beginning and 275.8 MB in the end (delta: 71.3 MB). Free memory was 168.6 MB in the beginning and 117.0 MB in the end (delta: 51.7 MB). Peak memory consumption was 123.8 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:28,450 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 204.5 MB. Free memory is still 186.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:33:28,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.47 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 179.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:28,452 INFO L168 Benchmark]: Boogie Preprocessor took 78.31 ms. Allocated memory is still 204.5 MB. Free memory was 179.1 MB in the beginning and 175.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:28,455 INFO L168 Benchmark]: RCFGBuilder took 711.73 ms. Allocated memory is still 204.5 MB. Free memory was 175.5 MB in the beginning and 161.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:28,455 INFO L168 Benchmark]: IcfgTransformer took 20.43 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:28,456 INFO L168 Benchmark]: TraceAbstraction took 2077.67 ms. Allocated memory was 204.5 MB in the beginning and 275.8 MB in the end (delta: 71.3 MB). Free memory was 158.5 MB in the beginning and 117.0 MB in the end (delta: 41.6 MB). Peak memory consumption was 112.4 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:28,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 204.5 MB. Free memory is still 186.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 351.47 ms. Allocated memory is still 204.5 MB. Free memory was 168.5 MB in the beginning and 179.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 78.31 ms. Allocated memory is still 204.5 MB. Free memory was 179.1 MB in the beginning and 175.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 711.73 ms. Allocated memory is still 204.5 MB. Free memory was 175.5 MB in the beginning and 161.7 MB in the end (delta: 13.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 8.0 GB. * IcfgTransformer took 20.43 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2077.67 ms. Allocated memory was 204.5 MB in the beginning and 275.8 MB in the end (delta: 71.3 MB). Free memory was 158.5 MB in the beginning and 117.0 MB in the end (delta: 41.6 MB). Peak memory consumption was 112.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 489]: 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, 127 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2036.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 16.8ms, AutomataDifference: 1333.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 274 SDtfs, 401 SDslu, 166 SDs, 0 SdLazy, 407 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 642.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 772.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 36.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.4ms SsaConstructionTime, 84.7ms SatisfiabilityAnalysisTime, 459.6ms InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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! Received shutdown request...