/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 03:47:29,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 03:47:29,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 03:47:29,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 03:47:29,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 03:47:29,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 03:47:29,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 03:47:29,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 03:47:29,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 03:47:29,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 03:47:29,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 03:47:29,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 03:47:29,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 03:47:29,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 03:47:29,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 03:47:29,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 03:47:29,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 03:47:29,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 03:47:29,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 03:47:29,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 03:47:29,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 03:47:29,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 03:47:29,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 03:47:29,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 03:47:29,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-16 03:47:29,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-16 03:47:29,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-16 03:47:29,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-16 03:47:29,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-16 03:47:29,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-16 03:47:29,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 03:47:29,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 03:47:29,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 03:47:29,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 03:47:29,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 03:47:29,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 03:47:29,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 03:47:29,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 03:47:29,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 03:47:29,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 03:47:29,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 03:47:29,403 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-04-16 03:47:29,416 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 03:47:29,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 03:47:29,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 03:47:29,420 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 03:47:29,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 03:47:29,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 03:47:29,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 03:47:29,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 03:47:29,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 03:47:29,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 03:47:29,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 03:47:29,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 03:47:29,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 03:47:29,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 03:47:29,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 03:47:29,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 03:47:29,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 03:47:29,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 03:47:29,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 03:47:29,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 03:47:29,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-16 03:47:29,423 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-04-16 03:47:29,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 03:47:29,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 03:47:29,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 03:47:29,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 03:47:29,705 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 03:47:29,709 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 03:47:29,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2021-04-16 03:47:29,772 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b958f6609/f3a9cfff45494409afec669b86c943bb/FLAG44d988ae6 [2021-04-16 03:47:30,138 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 03:47:30,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2021-04-16 03:47:30,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b958f6609/f3a9cfff45494409afec669b86c943bb/FLAG44d988ae6 [2021-04-16 03:47:30,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b958f6609/f3a9cfff45494409afec669b86c943bb [2021-04-16 03:47:30,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 03:47:30,157 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-16 03:47:30,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 03:47:30,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 03:47:30,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 03:47:30,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 03:47:30" (1/1) ... [2021-04-16 03:47:30,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f23aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30, skipping insertion in model container [2021-04-16 03:47:30,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 03:47:30" (1/1) ... [2021-04-16 03:47:30,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 03:47:30,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 03:47:30,361 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c[11358,11371] [2021-04-16 03:47:30,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 03:47:30,369 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 03:47:30,406 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c[11358,11371] [2021-04-16 03:47:30,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 03:47:30,423 INFO L208 MainTranslator]: Completed translation [2021-04-16 03:47:30,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30 WrapperNode [2021-04-16 03:47:30,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 03:47:30,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 03:47:30,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 03:47:30,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 03:47:30,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30" (1/1) ... [2021-04-16 03:47:30,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30" (1/1) ... [2021-04-16 03:47:30,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30" (1/1) ... [2021-04-16 03:47:30,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30" (1/1) ... [2021-04-16 03:47:30,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30" (1/1) ... [2021-04-16 03:47:30,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30" (1/1) ... [2021-04-16 03:47:30,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30" (1/1) ... [2021-04-16 03:47:30,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 03:47:30,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 03:47:30,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 03:47:30,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 03:47:30,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30" (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 [2021-04-16 03:47:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 03:47:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 03:47:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 03:47:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 03:47:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-04-16 03:47:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-04-16 03:47:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-04-16 03:47:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-04-16 03:47:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-04-16 03:47:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-04-16 03:47:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-04-16 03:47:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-04-16 03:47:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 03:47:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 03:47:30,526 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 03:47:30,526 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 03:47:30,527 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 03:47:30,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 03:47:30,527 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 03:47:30,527 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-04-16 03:47:30,532 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-04-16 03:47:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-04-16 03:47:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-04-16 03:47:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-04-16 03:47:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-04-16 03:47:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-04-16 03:47:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-04-16 03:47:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-04-16 03:47:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-04-16 03:47:30,533 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-04-16 03:47:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 03:47:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-04-16 03:47:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 03:47:31,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 03:47:31,157 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-04-16 03:47:31,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 03:47:31 BoogieIcfgContainer [2021-04-16 03:47:31,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 03:47:31,159 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-04-16 03:47:31,159 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-04-16 03:47:31,160 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-04-16 03:47:31,161 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 03:47:31" (1/1) ... [2021-04-16 03:47:31,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 03:47:31 BasicIcfg [2021-04-16 03:47:31,180 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-04-16 03:47:31,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 03:47:31,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 03:47:31,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 03:47:31,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 03:47:30" (1/4) ... [2021-04-16 03:47:31,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2388bf81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 03:47:31, skipping insertion in model container [2021-04-16 03:47:31,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 03:47:30" (2/4) ... [2021-04-16 03:47:31,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2388bf81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 03:47:31, skipping insertion in model container [2021-04-16 03:47:31,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 03:47:31" (3/4) ... [2021-04-16 03:47:31,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2388bf81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 03:47:31, skipping insertion in model container [2021-04-16 03:47:31,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 03:47:31" (4/4) ... [2021-04-16 03:47:31,185 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_4.cJordan [2021-04-16 03:47:31,189 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-04-16 03:47:31,192 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 03:47:31,203 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 03:47:31,217 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 03:47:31,218 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-16 03:47:31,218 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-04-16 03:47:31,218 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 03:47:31,218 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 03:47:31,218 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 03:47:31,218 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 03:47:31,218 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 03:47:31,233 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) [2021-04-16 03:47:31,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-04-16 03:47:31,240 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 03:47:31,241 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] [2021-04-16 03:47:31,241 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 03:47:31,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 03:47:31,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1746528498, now seen corresponding path program 1 times [2021-04-16 03:47:31,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 03:47:31,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472936887] [2021-04-16 03:47:31,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 03:47:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:31,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:31,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:31,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:31,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:31,542 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-04-16 03:47:31,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 03:47:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:31,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:31,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:31,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-04-16 03:47:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:31,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:31,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:31,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:31,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:31,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-04-16 03:47:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:31,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:31,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:31,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-04-16 03:47:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:31,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:31,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:31,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:31,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:31,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-04-16 03:47:31,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472936887] [2021-04-16 03:47:31,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 03:47:31,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 03:47:31,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333755015] [2021-04-16 03:47:31,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-16 03:47:31,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 03:47:31,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-16 03:47:31,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 03:47:31,660 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) [2021-04-16 03:47:31,780 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-04-16 03:47:32,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 03:47:32,133 INFO L93 Difference]: Finished difference Result 131 states and 179 transitions. [2021-04-16 03:47:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 03:47:32,134 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 [2021-04-16 03:47:32,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 03:47:32,143 INFO L225 Difference]: With dead ends: 131 [2021-04-16 03:47:32,143 INFO L226 Difference]: Without dead ends: 120 [2021-04-16 03:47:32,144 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 254.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-16 03:47:32,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-04-16 03:47:32,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-04-16 03:47:32,181 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) [2021-04-16 03:47:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 167 transitions. [2021-04-16 03:47:32,187 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 167 transitions. Word has length 47 [2021-04-16 03:47:32,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 03:47:32,188 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 167 transitions. [2021-04-16 03:47:32,188 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) [2021-04-16 03:47:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 167 transitions. [2021-04-16 03:47:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-04-16 03:47:32,194 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 03:47:32,195 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] [2021-04-16 03:47:32,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 03:47:32,200 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 03:47:32,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 03:47:32,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1478723201, now seen corresponding path program 1 times [2021-04-16 03:47:32,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 03:47:32,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150618145] [2021-04-16 03:47:32,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 03:47:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:32,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:32,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:32,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:32,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:32,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:32,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 03:47:32,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:32,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 03:47:32,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:32,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:32,423 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-04-16 03:47:32,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 03:47:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:32,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:32,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:32,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-04-16 03:47:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:32,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:32,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-04-16 03:47:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:32,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:32,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:32,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-04-16 03:47:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 03:47:32,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 03:47:32,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 03:47:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 03:47:32,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150618145] [2021-04-16 03:47:32,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 03:47:32,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-16 03:47:32,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150035624] [2021-04-16 03:47:32,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-16 03:47:32,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 03:47:32,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-16 03:47:32,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-04-16 03:47:32,489 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) [2021-04-16 03:47:33,102 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-04-16 03:47:33,235 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-04-16 03:47:33,354 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-04-16 03:47:33,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 03:47:33,488 INFO L93 Difference]: Finished difference Result 118 states and 164 transitions. [2021-04-16 03:47:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-16 03:47:33,489 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 [2021-04-16 03:47:33,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 03:47:33,489 INFO L225 Difference]: With dead ends: 118 [2021-04-16 03:47:33,489 INFO L226 Difference]: Without dead ends: 0 [2021-04-16 03:47:33,491 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 621.6ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-04-16 03:47:33,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-04-16 03:47:33,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-04-16 03:47:33,492 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) [2021-04-16 03:47:33,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-04-16 03:47:33,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2021-04-16 03:47:33,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 03:47:33,492 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-04-16 03:47:33,492 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) [2021-04-16 03:47:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-04-16 03:47:33,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-04-16 03:47:33,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 03:47:33,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 03:47:33 BasicIcfg [2021-04-16 03:47:33,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 03:47:33,496 INFO L168 Benchmark]: Toolchain (without parser) took 3339.59 ms. Allocated memory was 205.5 MB in the beginning and 247.5 MB in the end (delta: 41.9 MB). Free memory was 170.3 MB in the beginning and 174.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 38.6 MB. Max. memory is 8.0 GB. [2021-04-16 03:47:33,497 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 205.5 MB. Free memory was 187.7 MB in the beginning and 187.6 MB in the end (delta: 115.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 03:47:33,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.17 ms. Allocated memory is still 205.5 MB. Free memory was 170.1 MB in the beginning and 182.4 MB in the end (delta: -12.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. [2021-04-16 03:47:33,499 INFO L168 Benchmark]: Boogie Preprocessor took 46.34 ms. Allocated memory is still 205.5 MB. Free memory was 182.4 MB in the beginning and 178.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-04-16 03:47:33,502 INFO L168 Benchmark]: RCFGBuilder took 687.69 ms. Allocated memory is still 205.5 MB. Free memory was 178.8 MB in the beginning and 116.4 MB in the end (delta: 62.4 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2021-04-16 03:47:33,502 INFO L168 Benchmark]: IcfgTransformer took 21.57 ms. Allocated memory is still 205.5 MB. Free memory was 116.4 MB in the beginning and 113.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-04-16 03:47:33,503 INFO L168 Benchmark]: TraceAbstraction took 2314.19 ms. Allocated memory was 205.5 MB in the beginning and 247.5 MB in the end (delta: 41.9 MB). Free memory was 112.7 MB in the beginning and 174.7 MB in the end (delta: -62.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 03:47:33,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 205.5 MB. Free memory was 187.7 MB in the beginning and 187.6 MB in the end (delta: 115.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 265.17 ms. Allocated memory is still 205.5 MB. Free memory was 170.1 MB in the beginning and 182.4 MB in the end (delta: -12.3 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.34 ms. Allocated memory is still 205.5 MB. Free memory was 182.4 MB in the beginning and 178.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 687.69 ms. Allocated memory is still 205.5 MB. Free memory was 178.8 MB in the beginning and 116.4 MB in the end (delta: 62.4 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. * IcfgTransformer took 21.57 ms. Allocated memory is still 205.5 MB. Free memory was 116.4 MB in the beginning and 113.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2314.19 ms. Allocated memory was 205.5 MB in the beginning and 247.5 MB in the end (delta: 41.9 MB). Free memory was 112.7 MB in the beginning and 174.7 MB in the end (delta: -62.0 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: 2279.7ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 16.9ms, AutomataDifference: 1497.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 275 SDtfs, 407 SDslu, 223 SDs, 0 SdLazy, 519 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 671.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 876.1ms 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: 34.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.5ms SsaConstructionTime, 95.4ms SatisfiabilityAnalysisTime, 517.7ms 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...