/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 18:23:40,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 18:23:40,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 18:23:40,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 18:23:40,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 18:23:40,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 18:23:40,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 18:23:40,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 18:23:40,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 18:23:40,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 18:23:40,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 18:23:40,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 18:23:40,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 18:23:40,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 18:23:40,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 18:23:40,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 18:23:40,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 18:23:40,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 18:23:40,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 18:23:40,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 18:23:40,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 18:23:40,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 18:23:40,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 18:23:40,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 18:23:40,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 18:23:40,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-02 18:23:40,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-02 18:23:40,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-02 18:23:40,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-02 18:23:40,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-02 18:23:40,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-02 18:23:40,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-02 18:23:40,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-02 18:23:40,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 18:23:40,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 18:23:40,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 18:23:40,865 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-02 18:23:40,884 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 18:23:40,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 18:23:40,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 18:23:40,887 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 18:23:40,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 18:23:40,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 18:23:40,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 18:23:40,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 18:23:40,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 18:23:40,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 18:23:40,889 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 18:23:40,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 18:23:40,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 18:23:40,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 18:23:40,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 18:23:40,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 18:23:40,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-02 18:23:40,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 18:23:40,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 18:23:40,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 18:23:40,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 18:23:40,892 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-02 18:23:40,893 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 18:23:41,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 18:23:41,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 18:23:41,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 18:23:41,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 18:23:41,221 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 18:23:41,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2021-05-02 18:23:41,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0cab1257/1eadc0bd7caa4e93b96537ec56168ee0/FLAG755dab4c0 [2021-05-02 18:23:41,805 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 18:23:41,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2021-05-02 18:23:41,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0cab1257/1eadc0bd7caa4e93b96537ec56168ee0/FLAG755dab4c0 [2021-05-02 18:23:42,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0cab1257/1eadc0bd7caa4e93b96537ec56168ee0 [2021-05-02 18:23:42,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 18:23:42,299 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-02 18:23:42,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 18:23:42,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 18:23:42,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 18:23:42,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 06:23:42" (1/1) ... [2021-05-02 18:23:42,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc1c609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42, skipping insertion in model container [2021-05-02 18:23:42,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 06:23:42" (1/1) ... [2021-05-02 18:23:42,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 18:23:42,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 18:23:42,521 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c[11314,11327] [2021-05-02 18:23:42,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 18:23:42,531 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 18:23:42,619 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c[11314,11327] [2021-05-02 18:23:42,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 18:23:42,640 INFO L208 MainTranslator]: Completed translation [2021-05-02 18:23:42,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42 WrapperNode [2021-05-02 18:23:42,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 18:23:42,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 18:23:42,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 18:23:42,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 18:23:42,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42" (1/1) ... [2021-05-02 18:23:42,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42" (1/1) ... [2021-05-02 18:23:42,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42" (1/1) ... [2021-05-02 18:23:42,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42" (1/1) ... [2021-05-02 18:23:42,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42" (1/1) ... [2021-05-02 18:23:42,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42" (1/1) ... [2021-05-02 18:23:42,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42" (1/1) ... [2021-05-02 18:23:42,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 18:23:42,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 18:23:42,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 18:23:42,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 18:23:42,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42" (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 [2021-05-02 18:23:42,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 18:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 18:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 18:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-02 18:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-05-02 18:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-05-02 18:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-05-02 18:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-05-02 18:23:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-05-02 18:23:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-05-02 18:23:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-05-02 18:23:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-05-02 18:23:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 18:23:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 18:23:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 18:23:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 18:23:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 18:23:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 18:23:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-02 18:23:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-05-02 18:23:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-02 18:23:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-05-02 18:23:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-05-02 18:23:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-05-02 18:23:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-05-02 18:23:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-05-02 18:23:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-02 18:23:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-05-02 18:23:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-05-02 18:23:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-02 18:23:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 18:23:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 18:23:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-02 18:23:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 18:23:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 18:23:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 18:23:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 18:23:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-02 18:23:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-02 18:23:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 18:23:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-02 18:23:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 18:23:43,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 18:23:43,435 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-05-02 18:23:43,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:23:43 BoogieIcfgContainer [2021-05-02 18:23:43,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 18:23:43,438 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-02 18:23:43,438 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-02 18:23:43,438 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-02 18:23:43,441 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:23:43" (1/1) ... [2021-05-02 18:23:43,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 06:23:43 BasicIcfg [2021-05-02 18:23:43,468 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-02 18:23:43,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 18:23:43,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 18:23:43,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 18:23:43,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 06:23:42" (1/4) ... [2021-05-02 18:23:43,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225a0091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 06:23:43, skipping insertion in model container [2021-05-02 18:23:43,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 06:23:42" (2/4) ... [2021-05-02 18:23:43,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225a0091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 06:23:43, skipping insertion in model container [2021-05-02 18:23:43,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 06:23:43" (3/4) ... [2021-05-02 18:23:43,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225a0091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 06:23:43, skipping insertion in model container [2021-05-02 18:23:43,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 02.05 06:23:43" (4/4) ... [2021-05-02 18:23:43,475 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_5.cJordan [2021-05-02 18:23:43,480 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-02 18:23:43,484 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 18:23:43,500 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 18:23:43,526 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 18:23:43,526 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-02 18:23:43,526 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-02 18:23:43,526 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 18:23:43,527 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 18:23:43,527 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 18:23:43,527 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 18:23:43,527 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 18:23:43,543 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) [2021-05-02 18:23:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-02 18:23:43,567 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:23:43,568 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:23:43,569 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:23:43,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:23:43,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1746528498, now seen corresponding path program 1 times [2021-05-02 18:23:43,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:23:43,584 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780752592] [2021-05-02 18:23:43,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:23:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:43,971 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-02 18:23:43,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:23:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:44,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-02 18:23:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:44,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 18:23:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:44,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-02 18:23:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:44,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-05-02 18:23:44,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:23:44,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780752592] [2021-05-02 18:23:44,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780752592] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 18:23:44,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 18:23:44,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-02 18:23:44,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436210992] [2021-05-02 18:23:44,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-02 18:23:44,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:23:44,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-02 18:23:44,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-02 18:23:44,112 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) [2021-05-02 18:23:44,258 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-02 18:23:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:23:44,769 INFO L93 Difference]: Finished difference Result 131 states and 179 transitions. [2021-05-02 18:23:44,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 18:23:44,770 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 [2021-05-02 18:23:44,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:23:44,780 INFO L225 Difference]: With dead ends: 131 [2021-05-02 18:23:44,781 INFO L226 Difference]: Without dead ends: 120 [2021-05-02 18:23:44,782 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 312.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-02 18:23:44,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-05-02 18:23:44,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-05-02 18:23:44,827 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) [2021-05-02 18:23:44,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 167 transitions. [2021-05-02 18:23:44,834 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 167 transitions. Word has length 47 [2021-05-02 18:23:44,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:23:44,835 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 167 transitions. [2021-05-02 18:23:44,835 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) [2021-05-02 18:23:44,835 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 167 transitions. [2021-05-02 18:23:44,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-02 18:23:44,844 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 18:23:44,844 INFO L523 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-02 18:23:44,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 18:23:44,844 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 18:23:44,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 18:23:44,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1478723201, now seen corresponding path program 1 times [2021-05-02 18:23:44,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 18:23:44,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807484930] [2021-05-02 18:23:44,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 18:23:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:45,107 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-02 18:23:45,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 18:23:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:45,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-02 18:23:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:45,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-02 18:23:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:45,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-02 18:23:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 18:23:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 18:23:45,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 18:23:45,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807484930] [2021-05-02 18:23:45,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807484930] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 18:23:45,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 18:23:45,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-02 18:23:45,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609401064] [2021-05-02 18:23:45,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-02 18:23:45,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 18:23:45,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-02 18:23:45,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-02 18:23:45,176 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) [2021-05-02 18:23:45,307 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-02 18:23:45,913 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-02 18:23:46,101 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-02 18:23:46,269 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-02 18:23:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 18:23:46,436 INFO L93 Difference]: Finished difference Result 118 states and 164 transitions. [2021-05-02 18:23:46,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-02 18:23:46,436 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 [2021-05-02 18:23:46,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 18:23:46,437 INFO L225 Difference]: With dead ends: 118 [2021-05-02 18:23:46,437 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 18:23:46,438 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 760.1ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-05-02 18:23:46,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 18:23:46,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 18:23:46,438 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) [2021-05-02 18:23:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 18:23:46,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2021-05-02 18:23:46,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 18:23:46,438 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 18:23:46,438 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) [2021-05-02 18:23:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 18:23:46,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 18:23:46,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-02 18:23:46,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 06:23:46 BasicIcfg [2021-05-02 18:23:46,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 18:23:46,444 INFO L168 Benchmark]: Toolchain (without parser) took 4144.81 ms. Allocated memory was 187.7 MB in the beginning and 225.4 MB in the end (delta: 37.7 MB). Free memory was 151.8 MB in the beginning and 122.6 MB in the end (delta: 29.2 MB). Peak memory consumption was 68.1 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:46,444 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 187.7 MB. Free memory is still 169.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 18:23:46,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.13 ms. Allocated memory is still 187.7 MB. Free memory was 151.6 MB in the beginning and 165.5 MB in the end (delta: -13.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:46,445 INFO L168 Benchmark]: Boogie Preprocessor took 65.38 ms. Allocated memory is still 187.7 MB. Free memory was 165.5 MB in the beginning and 161.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:46,446 INFO L168 Benchmark]: RCFGBuilder took 729.42 ms. Allocated memory is still 187.7 MB. Free memory was 161.9 MB in the beginning and 99.0 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:46,446 INFO L168 Benchmark]: IcfgTransformer took 30.94 ms. Allocated memory is still 187.7 MB. Free memory was 99.0 MB in the beginning and 95.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:46,447 INFO L168 Benchmark]: TraceAbstraction took 2972.83 ms. Allocated memory was 187.7 MB in the beginning and 225.4 MB in the end (delta: 37.7 MB). Free memory was 95.9 MB in the beginning and 122.6 MB in the end (delta: -26.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-05-02 18:23:46,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 187.7 MB. Free memory is still 169.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 334.13 ms. Allocated memory is still 187.7 MB. Free memory was 151.6 MB in the beginning and 165.5 MB in the end (delta: -13.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.38 ms. Allocated memory is still 187.7 MB. Free memory was 165.5 MB in the beginning and 161.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 729.42 ms. Allocated memory is still 187.7 MB. Free memory was 161.9 MB in the beginning and 99.0 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. * IcfgTransformer took 30.94 ms. Allocated memory is still 187.7 MB. Free memory was 99.0 MB in the beginning and 95.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2972.83 ms. Allocated memory was 187.7 MB in the beginning and 225.4 MB in the end (delta: 37.7 MB). Free memory was 95.9 MB in the beginning and 122.6 MB in the end (delta: -26.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 463]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2915.6ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 36.8ms, AutomataDifference: 1946.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 275 SDtfs, 407 SDslu, 223 SDs, 0 SdLazy, 519 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 909.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1072.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 41.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.4ms SsaConstructionTime, 125.8ms SatisfiabilityAnalysisTime, 613.7ms 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...