/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_5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 03:33:36,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 03:33:36,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 03:33:36,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-01 03:33:36,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-01 03:33:36,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-01 03:33:36,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-01 03:33:36,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-01 03:33:36,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-01 03:33:36,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-01 03:33:36,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-01 03:33:36,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-01 03:33:36,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 03:33:36,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 03:33:36,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 03:33:36,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 03:33:36,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 03:33:36,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 03:33:36,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 03:33:36,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 03:33:36,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 03:33:36,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 03:33:36,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 03:33:36,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 03:33:36,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-01 03:33:36,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-01 03:33:36,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-01 03:33:36,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-01 03:33:36,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-01 03:33:36,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-01 03:33:36,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-01 03:33:36,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-01 03:33:36,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-01 03:33:36,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-01 03:33:36,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-01 03:33:36,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-01 03:33:36,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-01 03:33:36,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-01 03:33:36,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 03:33:36,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 03:33:36,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 03:33:36,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-01 03:33:37,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 03:33:37,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 03:33:37,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 03:33:37,026 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 03:33:37,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 03:33:37,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 03:33:37,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 03:33:37,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 03:33:37,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 03:33:37,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 03:33:37,028 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 03:33:37,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 03:33:37,029 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 03:33:37,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 03:33:37,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 03:33:37,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 03:33:37,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 03:33:37,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 03:33:37,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 03:33:37,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 03:33:37,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-01 03:33:37,031 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-01 03:33:37,031 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 03:33:37,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 03:33:37,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 03:33:37,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 03:33:37,374 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 03:33:37,376 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 03:33:37,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2021-05-01 03:33:37,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bc23c2aa/cd5cbe9c316747669c7d360f26b077d4/FLAG2e7a47728 [2021-05-01 03:33:37,962 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 03:33:37,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2021-05-01 03:33:37,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bc23c2aa/cd5cbe9c316747669c7d360f26b077d4/FLAG2e7a47728 [2021-05-01 03:33:38,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bc23c2aa/cd5cbe9c316747669c7d360f26b077d4 [2021-05-01 03:33:38,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 03:33:38,269 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-01 03:33:38,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 03:33:38,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 03:33:38,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 03:33:38,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343804be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38, skipping insertion in model container [2021-05-01 03:33:38,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 03:33:38,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 03:33:38,544 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] [2021-05-01 03:33:38,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:33:38,596 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 03:33:38,652 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] [2021-05-01 03:33:38,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 03:33:38,669 INFO L208 MainTranslator]: Completed translation [2021-05-01 03:33:38,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38 WrapperNode [2021-05-01 03:33:38,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 03:33:38,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 03:33:38,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 03:33:38,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 03:33:38,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38" (1/1) ... [2021-05-01 03:33:38,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 03:33:38,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 03:33:38,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 03:33:38,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 03:33:38,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38" (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 03:33:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 03:33:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 03:33:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 03:33:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-01 03:33:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-05-01 03:33:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-05-01 03:33:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-05-01 03:33:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-05-01 03:33:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-05-01 03:33:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-05-01 03:33:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-05-01 03:33:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-05-01 03:33:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 03:33:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 03:33:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 03:33:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 03:33:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 03:33:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 03:33:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-01 03:33:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-05-01 03:33:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-01 03:33:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-05-01 03:33:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-05-01 03:33:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-05-01 03:33:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-05-01 03:33:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-05-01 03:33:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-05-01 03:33:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-05-01 03:33:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-05-01 03:33:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-05-01 03:33:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 03:33:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 03:33:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-05-01 03:33:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 03:33:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 03:33:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 03:33:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 03:33:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-05-01 03:33:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-01 03:33:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 03:33:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-05-01 03:33:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 03:33:39,496 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 03:33:39,497 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-05-01 03:33:39,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:33:39 BoogieIcfgContainer [2021-05-01 03:33:39,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 03:33:39,499 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-01 03:33:39,499 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-01 03:33:39,500 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-01 03:33:39,502 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:33:39" (1/1) ... [2021-05-01 03:33:39,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:33:39 BasicIcfg [2021-05-01 03:33:39,527 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-01 03:33:39,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 03:33:39,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 03:33:39,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 03:33:39,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 03:33:38" (1/4) ... [2021-05-01 03:33:39,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6a82e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:33:39, skipping insertion in model container [2021-05-01 03:33:39,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 03:33:38" (2/4) ... [2021-05-01 03:33:39,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6a82e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 03:33:39, skipping insertion in model container [2021-05-01 03:33:39,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 03:33:39" (3/4) ... [2021-05-01 03:33:39,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6a82e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:33:39, skipping insertion in model container [2021-05-01 03:33:39,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 01.05 03:33:39" (4/4) ... [2021-05-01 03:33:39,534 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_5.cJordan [2021-05-01 03:33:39,539 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-01 03:33:39,544 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 03:33:39,559 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 03:33:39,576 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 03:33:39,576 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-01 03:33:39,576 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-01 03:33:39,577 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 03:33:39,577 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 03:33:39,577 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 03:33:39,577 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 03:33:39,577 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 03:33:39,591 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 03:33:39,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-01 03:33:39,601 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:33:39,602 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 03:33:39,602 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:33:39,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:33:39,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1746528498, now seen corresponding path program 1 times [2021-05-01 03:33:39,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:33:39,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430350036] [2021-05-01 03:33:39,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:33:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:39,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:39,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:39,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:40,007 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 03:33:40,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:33:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:40,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:40,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-01 03:33:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:40,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:40,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:40,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-01 03:33:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:40,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:40,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-05-01 03:33:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:40,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:40,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:40,132 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 03:33:40,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:33:40,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430350036] [2021-05-01 03:33:40,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430350036] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:33:40,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:33:40,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 03:33:40,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033914861] [2021-05-01 03:33:40,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 03:33:40,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:33:40,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 03:33:40,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 03:33:40,153 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 03:33:40,342 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 03:33:40,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:33:40,800 INFO L93 Difference]: Finished difference Result 131 states and 179 transitions. [2021-05-01 03:33:40,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 03:33:40,802 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 03:33:40,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:33:40,810 INFO L225 Difference]: With dead ends: 131 [2021-05-01 03:33:40,810 INFO L226 Difference]: Without dead ends: 120 [2021-05-01 03:33:40,811 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 318.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-01 03:33:40,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-05-01 03:33:40,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-05-01 03:33:40,853 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 03:33:40,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 167 transitions. [2021-05-01 03:33:40,856 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 167 transitions. Word has length 47 [2021-05-01 03:33:40,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:33:40,857 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 167 transitions. [2021-05-01 03:33:40,857 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 03:33:40,857 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 167 transitions. [2021-05-01 03:33:40,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-01 03:33:40,860 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 03:33:40,860 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 03:33:40,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 03:33:40,860 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 03:33:40,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 03:33:40,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1478723201, now seen corresponding path program 1 times [2021-05-01 03:33:40,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-01 03:33:40,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3976694] [2021-05-01 03:33:40,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 03:33:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:40,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:40,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:40,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:33:40,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-05-01 03:33:40,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:40,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:41,108 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-05-01 03:33:41,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 03:33:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:41,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:41,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:41,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-01 03:33:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:41,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:41,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:41,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-05-01 03:33:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:41,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:41,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:41,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-05-01 03:33:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 03:33:41,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 03:33:41,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 03:33:41,155 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 03:33:41,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-01 03:33:41,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3976694] [2021-05-01 03:33:41,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3976694] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 03:33:41,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 03:33:41,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 03:33:41,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883118972] [2021-05-01 03:33:41,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 03:33:41,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-01 03:33:41,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 03:33:41,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-05-01 03:33:41,158 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 03:33:41,301 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-05-01 03:33:41,967 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-05-01 03:33:42,124 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-05-01 03:33:42,266 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-05-01 03:33:42,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 03:33:42,436 INFO L93 Difference]: Finished difference Result 118 states and 164 transitions. [2021-05-01 03:33:42,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 03:33:42,437 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 03:33:42,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 03:33:42,438 INFO L225 Difference]: With dead ends: 118 [2021-05-01 03:33:42,438 INFO L226 Difference]: Without dead ends: 0 [2021-05-01 03:33:42,438 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 741.3ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-05-01 03:33:42,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-01 03:33:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-01 03:33:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-01 03:33:42,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-01 03:33:42,439 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2021-05-01 03:33:42,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 03:33:42,439 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-01 03:33:42,440 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 03:33:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-01 03:33:42,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-01 03:33:42,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 03:33:42,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 03:33:42 BasicIcfg [2021-05-01 03:33:42,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-01 03:33:42,446 INFO L168 Benchmark]: Toolchain (without parser) took 4177.09 ms. Allocated memory was 208.7 MB in the beginning and 281.0 MB in the end (delta: 72.4 MB). Free memory was 173.9 MB in the beginning and 250.2 MB in the end (delta: -76.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:33:42,446 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 208.7 MB. Free memory is still 191.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:33:42,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.58 ms. Allocated memory is still 208.7 MB. Free memory was 173.6 MB in the beginning and 186.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:42,447 INFO L168 Benchmark]: Boogie Preprocessor took 60.66 ms. Allocated memory is still 208.7 MB. Free memory was 186.8 MB in the beginning and 182.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:42,448 INFO L168 Benchmark]: RCFGBuilder took 765.89 ms. Allocated memory is still 208.7 MB. Free memory was 182.8 MB in the beginning and 175.7 MB in the end (delta: 7.2 MB). Peak memory consumption was 52.5 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:42,448 INFO L168 Benchmark]: IcfgTransformer took 28.17 ms. Allocated memory is still 208.7 MB. Free memory was 175.7 MB in the beginning and 172.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-01 03:33:42,448 INFO L168 Benchmark]: TraceAbstraction took 2916.03 ms. Allocated memory was 208.7 MB in the beginning and 281.0 MB in the end (delta: 72.4 MB). Free memory was 172.0 MB in the beginning and 250.2 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-05-01 03:33:42,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 208.7 MB. Free memory is still 191.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 397.58 ms. Allocated memory is still 208.7 MB. Free memory was 173.6 MB in the beginning and 186.8 MB in the end (delta: -13.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 60.66 ms. Allocated memory is still 208.7 MB. Free memory was 186.8 MB in the beginning and 182.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 765.89 ms. Allocated memory is still 208.7 MB. Free memory was 182.8 MB in the beginning and 175.7 MB in the end (delta: 7.2 MB). Peak memory consumption was 52.5 MB. Max. memory is 8.0 GB. * IcfgTransformer took 28.17 ms. Allocated memory is still 208.7 MB. Free memory was 175.7 MB in the beginning and 172.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2916.03 ms. Allocated memory was 208.7 MB in the beginning and 281.0 MB in the end (delta: 72.4 MB). Free memory was 172.0 MB in the beginning and 250.2 MB in the end (delta: -78.2 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: 2866.8ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 16.8ms, AutomataDifference: 1953.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 275 SDtfs, 407 SDslu, 223 SDs, 0 SdLazy, 519 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 912.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1060.0ms 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: 26.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.8ms SsaConstructionTime, 114.4ms SatisfiabilityAnalysisTime, 607.2ms 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...