/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_4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 03:33:36,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 03:33:36,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 03:33:36,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 03:33:36,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 03:33:36,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 03:33:36,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 03:33:36,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 03:33:36,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 03:33:36,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 03:33:36,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 03:33:36,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 03:33:36,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 03:33:36,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 03:33:36,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 03:33:36,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 03:33:36,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 03:33:36,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 03:33:36,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 03:33:36,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 03:33:36,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 03:33:36,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 03:33:36,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 03:33:36,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 03:33:36,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 03:33:36,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 03:33:36,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 03:33:36,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 03:33:36,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 03:33:36,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 03:33:36,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 03:33:36,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 03:33:36,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 03:33:36,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 03:33:36,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 03:33:36,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 03:33:36,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 03:33:36,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 03:33:36,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 03:33:36,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 03:33:36,304 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 03:33:36,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 03:33:36,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 03:33:36,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 03:33:36,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 03:33:36,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 03:33:36,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 03:33:36,306 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 03:33:36,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 03:33:36,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 03:33:36,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 03:33:36,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 03:33:36,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 03:33:36,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 03:33:36,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 03:33:36,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:33:36,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 03:33:36,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 03:33:36,308 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 03:33:36,308 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 03:33:36,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 03:33:36,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 03:33:36,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 03:33:36,590 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 03:33:36,592 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 03:33:36,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2021-05-01 03:33:36,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cfc91a35/35000785093e4ab19f12e97fec531708/FLAGb93ba40d7 [2021-05-01 03:33:36,985 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 03:33:36,986 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2021-05-01 03:33:36,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cfc91a35/35000785093e4ab19f12e97fec531708/FLAGb93ba40d7 [2021-05-01 03:33:37,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cfc91a35/35000785093e4ab19f12e97fec531708 [2021-05-01 03:33:37,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 03:33:37,385 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 03:33:37,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 03:33:37,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 03:33:37,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 03:33:37,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:33:37" (1/1) ... [2021-05-01 03:33:37,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68abc998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37, skipping insertion in model container [2021-05-01 03:33:37,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:33:37" (1/1) ... [2021-05-01 03:33:37,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 03:33:37,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 03:33:37,603 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_4.c[11358,11371] [2021-05-01 03:33:37,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:33:37,612 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 03:33:37,707 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_4.c[11358,11371] [2021-05-01 03:33:37,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:33:37,725 INFO L208 MainTranslator]: Completed translation [2021-05-01 03:33:37,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37 WrapperNode [2021-05-01 03:33:37,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 03:33:37,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 03:33:37,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 03:33:37,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 03:33:37,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37" (1/1) ... [2021-05-01 03:33:37,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37" (1/1) ... [2021-05-01 03:33:37,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37" (1/1) ... [2021-05-01 03:33:37,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37" (1/1) ... [2021-05-01 03:33:37,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37" (1/1) ... [2021-05-01 03:33:37,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37" (1/1) ... [2021-05-01 03:33:37,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37" (1/1) ... [2021-05-01 03:33:37,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 03:33:37,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 03:33:37,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 03:33:37,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 03:33:37,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37" (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 03:33:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 03:33:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 03:33:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 03:33:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 03:33:37,850 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-05-01 03:33:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-05-01 03:33:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-05-01 03:33:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-05-01 03:33:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-05-01 03:33:37,851 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-05-01 03:33:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-05-01 03:33:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-05-01 03:33:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 03:33:37,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 03:33:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 03:33:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 03:33:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 03:33:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 03:33:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-05-01 03:33:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-01 03:33:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 03:33:38,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 03:33:38,562 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-05-01 03:33:38,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:33:38 BoogieIcfgContainer [2021-05-01 03:33:38,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 03:33:38,563 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 03:33:38,563 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 03:33:38,564 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 03:33:38,566 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:33:38 BasicIcfg [2021-05-01 03:33:38,585 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 03:33:38,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 03:33:38,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 03:33:38,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 03:33:38,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 03:33:37" (1/4) ... [2021-05-01 03:33:38,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be765f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:33:38, skipping insertion in model container [2021-05-01 03:33:38,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:37" (2/4) ... [2021-05-01 03:33:38,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be765f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:33:38, skipping insertion in model container [2021-05-01 03:33:38,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:33:38" (3/4) ... [2021-05-01 03:33:38,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be765f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:33:38, skipping insertion in model container [2021-05-01 03:33:38,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:33:38" (4/4) ... [2021-05-01 03:33:38,590 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_4.cJordan [2021-05-01 03:33:38,594 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 03:33:38,597 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 03:33:38,607 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 03:33:38,620 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 03:33:38,620 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 03:33:38,620 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 03:33:38,620 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 03:33:38,620 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 03:33:38,621 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 03:33:38,621 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 03:33:38,621 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 03:33:38,630 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) [2021-05-01 03:33:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-01 03:33:38,641 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:33:38,641 INFO L519 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] [2021-05-01 03:33:38,641 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:33:38,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:33:38,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1746528498, now seen corresponding path program 1 times [2021-05-01 03:33:38,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:33:38,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599393318] [2021-05-01 03:33:38,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:33:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:38,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:38,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:38,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:38,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:38,945 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 03:33:38,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:33:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:38,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:38,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:38,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-01 03:33:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:39,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-01 03:33:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:39,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-01 03:33:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:39,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-05-01 03:33:39,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:33:39,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599393318] [2021-05-01 03:33:39,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599393318] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:33:39,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:33:39,020 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 03:33:39,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264556525] [2021-05-01 03:33:39,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 03:33:39,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:33:39,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 03:33:39,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 03:33:39,035 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) [2021-05-01 03:33:39,167 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 03:33:39,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:33:39,546 INFO L93 Difference]: Finished difference Result 131 states and 179 transitions. [2021-05-01 03:33:39,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 03:33:39,547 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 [2021-05-01 03:33:39,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:33:39,553 INFO L225 Difference]: With dead ends: 131 [2021-05-01 03:33:39,554 INFO L226 Difference]: Without dead ends: 120 [2021-05-01 03:33:39,555 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 263.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 03:33:39,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-05-01 03:33:39,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-05-01 03:33:39,579 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) [2021-05-01 03:33:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 167 transitions. [2021-05-01 03:33:39,582 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 167 transitions. Word has length 47 [2021-05-01 03:33:39,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:33:39,582 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 167 transitions. [2021-05-01 03:33:39,582 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) [2021-05-01 03:33:39,582 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 167 transitions. [2021-05-01 03:33:39,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-01 03:33:39,584 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:33:39,585 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, 1, 1, 1, 1, 1] [2021-05-01 03:33:39,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 03:33:39,585 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:33:39,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:33:39,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1478723201, now seen corresponding path program 1 times [2021-05-01 03:33:39,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:33:39,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129606169] [2021-05-01 03:33:39,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:33:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:39,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:33:39,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:33:39,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:33:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:39,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-01 03:33:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:39,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-01 03:33:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:39,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-01 03:33:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:39,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 03:33:39,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:33:39,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129606169] [2021-05-01 03:33:39,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129606169] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:33:39,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:33:39,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 03:33:39,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478067689] [2021-05-01 03:33:39,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 03:33:39,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:33:39,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 03:33:39,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-01 03:33:39,847 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) [2021-05-01 03:33:39,960 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 03:33:40,472 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 03:33:40,607 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 03:33:40,730 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-01 03:33:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:33:40,857 INFO L93 Difference]: Finished difference Result 118 states and 164 transitions. [2021-05-01 03:33:40,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 03:33:40,858 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 [2021-05-01 03:33:40,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:33:40,858 INFO L225 Difference]: With dead ends: 118 [2021-05-01 03:33:40,858 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 03:33:40,859 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 597.1ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-05-01 03:33:40,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 03:33:40,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 03:33:40,859 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 03:33:40,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 03:33:40,860 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2021-05-01 03:33:40,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:33:40,860 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 03:33:40,860 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) [2021-05-01 03:33:40,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 03:33:40,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 03:33:40,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 03:33:40,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:33:40 BasicIcfg [2021-05-01 03:33:40,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 03:33:40,864 INFO L168 Benchmark]: Toolchain (without parser) took 3478.95 ms. Allocated memory was 191.9 MB in the beginning and 251.7 MB in the end (delta: 59.8 MB). Free memory was 156.8 MB in the beginning and 171.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:40,865 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 191.9 MB. Free memory is still 174.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:33:40,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.45 ms. Allocated memory is still 191.9 MB. Free memory was 156.6 MB in the beginning and 169.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:40,866 INFO L168 Benchmark]: Boogie Preprocessor took 71.14 ms. Allocated memory is still 191.9 MB. Free memory was 169.8 MB in the beginning and 166.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:40,866 INFO L168 Benchmark]: RCFGBuilder took 764.90 ms. Allocated memory is still 191.9 MB. Free memory was 166.1 MB in the beginning and 103.7 MB in the end (delta: 62.4 MB). Peak memory consumption was 61.9 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:40,866 INFO L168 Benchmark]: IcfgTransformer took 21.77 ms. Allocated memory is still 191.9 MB. Free memory was 103.7 MB in the beginning and 100.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:40,867 INFO L168 Benchmark]: TraceAbstraction took 2277.51 ms. Allocated memory was 191.9 MB in the beginning and 251.7 MB in the end (delta: 59.8 MB). Free memory was 100.6 MB in the beginning and 171.4 MB in the end (delta: -70.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:33:40,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 191.9 MB. Free memory is still 174.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 337.45 ms. Allocated memory is still 191.9 MB. Free memory was 156.6 MB in the beginning and 169.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 71.14 ms. Allocated memory is still 191.9 MB. Free memory was 169.8 MB in the beginning and 166.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 764.90 ms. Allocated memory is still 191.9 MB. Free memory was 166.1 MB in the beginning and 103.7 MB in the end (delta: 62.4 MB). Peak memory consumption was 61.9 MB. Max. memory is 8.0 GB. * IcfgTransformer took 21.77 ms. Allocated memory is still 191.9 MB. Free memory was 103.7 MB in the beginning and 100.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2277.51 ms. Allocated memory was 191.9 MB in the beginning and 251.7 MB in the end (delta: 59.8 MB). Free memory was 100.6 MB in the beginning and 171.4 MB in the end (delta: -70.8 MB). There was no memory consumed. 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: 2242.1ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 14.8ms, AutomataDifference: 1543.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 275 SDtfs, 407 SDslu, 223 SDs, 0 SdLazy, 519 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 709.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 860.2ms 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: 19.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.3ms SsaConstructionTime, 80.0ms SatisfiabilityAnalysisTime, 487.8ms 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...