/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 07:26:52,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 07:26:52,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 07:26:52,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 07:26:52,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 07:26:52,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 07:26:52,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 07:26:52,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 07:26:52,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 07:26:52,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 07:26:52,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 07:26:52,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 07:26:52,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 07:26:52,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 07:26:52,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 07:26:52,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 07:26:52,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 07:26:52,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 07:26:52,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 07:26:52,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 07:26:52,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 07:26:52,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 07:26:52,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 07:26:52,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 07:26:52,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 07:26:52,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-16 07:26:52,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-16 07:26:52,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-16 07:26:52,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-16 07:26:52,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-16 07:26:52,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-16 07:26:52,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-16 07:26:52,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-16 07:26:52,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 07:26:52,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 07:26:52,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 07:26:52,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 07:26:52,678 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 07:26:52,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 07:26:52,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 07:26:52,691 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 07:26:52,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 07:26:52,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 07:26:52,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 07:26:52,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 07:26:52,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 07:26:52,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 07:26:52,695 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 07:26:52,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 07:26:52,698 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 07:26:52,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 07:26:52,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 07:26:52,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 07:26:52,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 07:26:52,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 07:26:52,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:26:52,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 07:26:52,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 07:26:52,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 07:26:52,700 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 07:26:52,700 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 07:26:53,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 07:26:53,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 07:26:53,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 07:26:53,308 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 07:26:53,310 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 07:26:53,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2021-04-16 07:26:53,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98406d909/d7fb530526c24ccba26a70fc3e7841e7/FLAGee3fa875d [2021-04-16 07:26:54,559 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 07:26:54,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2021-04-16 07:26:54,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98406d909/d7fb530526c24ccba26a70fc3e7841e7/FLAGee3fa875d [2021-04-16 07:26:54,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98406d909/d7fb530526c24ccba26a70fc3e7841e7 [2021-04-16 07:26:54,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 07:26:54,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 07:26:54,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 07:26:54,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 07:26:54,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 07:26:54,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:26:54" (1/1) ... [2021-04-16 07:26:54,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6bd370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:54, skipping insertion in model container [2021-04-16 07:26:54,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:26:54" (1/1) ... [2021-04-16 07:26:54,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 07:26:54,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 07:26:55,529 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_2.c[11342,11355] [2021-04-16 07:26:55,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:26:55,568 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 07:26:55,731 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_2.c[11342,11355] [2021-04-16 07:26:55,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:26:55,761 INFO L208 MainTranslator]: Completed translation [2021-04-16 07:26:55,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55 WrapperNode [2021-04-16 07:26:55,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 07:26:55,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 07:26:55,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 07:26:55,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 07:26:55,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55" (1/1) ... [2021-04-16 07:26:55,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55" (1/1) ... [2021-04-16 07:26:55,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55" (1/1) ... [2021-04-16 07:26:55,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55" (1/1) ... [2021-04-16 07:26:55,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55" (1/1) ... [2021-04-16 07:26:55,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55" (1/1) ... [2021-04-16 07:26:55,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55" (1/1) ... [2021-04-16 07:26:55,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 07:26:55,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 07:26:55,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 07:26:55,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 07:26:55,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55" (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 07:26:56,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 07:26:56,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 07:26:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 07:26:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 07:26:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2021-04-16 07:26:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2021-04-16 07:26:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2021-04-16 07:26:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-04-16 07:26:56,060 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2021-04-16 07:26:56,062 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2021-04-16 07:26:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2021-04-16 07:26:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2021-04-16 07:26:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 07:26:56,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 07:26:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 07:26:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 07:26:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 07:26:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 07:26:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 07:26:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2021-04-16 07:26:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-04-16 07:26:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2021-04-16 07:26:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2021-04-16 07:26:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-04-16 07:26:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2021-04-16 07:26:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2021-04-16 07:26:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-04-16 07:26:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2021-04-16 07:26:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2021-04-16 07:26:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-04-16 07:26:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 07:26:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 07:26:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-04-16 07:26:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 07:26:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 07:26:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 07:26:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 07:26:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-04-16 07:26:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-04-16 07:26:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 07:26:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-04-16 07:26:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 07:26:57,899 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 07:26:57,900 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-04-16 07:26:57,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:26:57 BoogieIcfgContainer [2021-04-16 07:26:57,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 07:26:57,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 07:26:57,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 07:26:57,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 07:26:57,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 07:26:54" (1/3) ... [2021-04-16 07:26:57,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532aea45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:26:57, skipping insertion in model container [2021-04-16 07:26:57,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:26:55" (2/3) ... [2021-04-16 07:26:57,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532aea45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 07:26:57, skipping insertion in model container [2021-04-16 07:26:57,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 07:26:57" (3/3) ... [2021-04-16 07:26:57,920 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_2.c [2021-04-16 07:26:57,930 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 07:26:57,939 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 07:26:57,970 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 07:26:58,007 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 07:26:58,008 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 07:26:58,008 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 07:26:58,009 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 07:26:58,009 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 07:26:58,009 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 07:26:58,010 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 07:26:58,010 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 07:26:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 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 07:26:58,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-04-16 07:26:58,062 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:26:58,065 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] [2021-04-16 07:26:58,066 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:26:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:26:58,079 INFO L82 PathProgramCache]: Analyzing trace with hash -540283313, now seen corresponding path program 1 times [2021-04-16 07:26:58,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:26:58,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273257128] [2021-04-16 07:26:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:26:58,201 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:26:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:26:58,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:58,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:58,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:58,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:58,978 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-04-16 07:26:58,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 07:26:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:26:59,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:59,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:59,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-04-16 07:26:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:26:59,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:59,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:59,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-04-16 07:26:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 07:26:59,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:59,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:59,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 07:26:59,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 07:26:59,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 07:26:59,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273257128] [2021-04-16 07:26:59,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 07:26:59,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 07:26:59,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852244325] [2021-04-16 07:26:59,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-16 07:26:59,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 07:26:59,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-16 07:26:59,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 07:26:59,202 INFO L87 Difference]: Start difference. First operand has 128 states, 99 states have (on average 1.5353535353535352) internal successors, (152), 101 states have internal predecessors, (152), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-04-16 07:26:59,544 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2021-04-16 07:27:00,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 07:27:00,779 INFO L93 Difference]: Finished difference Result 243 states and 363 transitions. [2021-04-16 07:27:00,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 07:27:00,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-04-16 07:27:00,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 07:27:00,813 INFO L225 Difference]: With dead ends: 243 [2021-04-16 07:27:00,814 INFO L226 Difference]: Without dead ends: 119 [2021-04-16 07:27:00,829 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 671.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-16 07:27:00,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-04-16 07:27:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-04-16 07:27:01,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.4574468085106382) internal successors, (137), 95 states have internal predecessors, (137), 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 07:27:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2021-04-16 07:27:01,049 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2021-04-16 07:27:01,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 07:27:01,050 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2021-04-16 07:27:01,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-04-16 07:27:01,053 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2021-04-16 07:27:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-04-16 07:27:01,065 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 07:27:01,065 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] [2021-04-16 07:27:01,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 07:27:01,066 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 07:27:01,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 07:27:01,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1349629939, now seen corresponding path program 1 times [2021-04-16 07:27:01,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 07:27:01,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323405427] [2021-04-16 07:27:01,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 07:27:01,074 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 07:27:01,179 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-04-16 07:27:01,180 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 07:27:01,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 07:27:01,252 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-04-16 07:27:01,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 07:27:01 BoogieIcfgContainer [2021-04-16 07:27:01,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 07:27:01,261 INFO L168 Benchmark]: Toolchain (without parser) took 6501.03 ms. Allocated memory was 211.8 MB in the beginning and 274.7 MB in the end (delta: 62.9 MB). Free memory was 176.6 MB in the beginning and 215.0 MB in the end (delta: -38.4 MB). Peak memory consumption was 24.7 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:01,268 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 211.8 MB. Free memory was 194.1 MB in the beginning and 194.0 MB in the end (delta: 82.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 07:27:01,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1001.79 ms. Allocated memory is still 211.8 MB. Free memory was 176.4 MB in the beginning and 188.3 MB in the end (delta: -11.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:01,274 INFO L168 Benchmark]: Boogie Preprocessor took 145.58 ms. Allocated memory is still 211.8 MB. Free memory was 188.3 MB in the beginning and 184.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:01,277 INFO L168 Benchmark]: RCFGBuilder took 1991.12 ms. Allocated memory is still 211.8 MB. Free memory was 184.1 MB in the beginning and 167.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:01,286 INFO L168 Benchmark]: TraceAbstraction took 3349.46 ms. Allocated memory was 211.8 MB in the beginning and 274.7 MB in the end (delta: 62.9 MB). Free memory was 167.6 MB in the beginning and 215.0 MB in the end (delta: -47.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. [2021-04-16 07:27:01,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 211.8 MB. Free memory was 194.1 MB in the beginning and 194.0 MB in the end (delta: 82.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1001.79 ms. Allocated memory is still 211.8 MB. Free memory was 176.4 MB in the beginning and 188.3 MB in the end (delta: -11.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 145.58 ms. Allocated memory is still 211.8 MB. Free memory was 188.3 MB in the beginning and 184.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1991.12 ms. Allocated memory is still 211.8 MB. Free memory was 184.1 MB in the beginning and 167.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 41.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3349.46 ms. Allocated memory was 211.8 MB in the beginning and 274.7 MB in the end (delta: 62.9 MB). Free memory was 167.6 MB in the beginning and 215.0 MB in the end (delta: -47.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 463]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L181] unsigned int Id_MCDC_104; [L182] UINT16 Id_MCDC_105; [L183] UINT16 Id_MCDC_106; [L184] Od_IndexTable* Id_MCDC_107; [L185] Od_IndexTable* Id_MCDC_108; [L186] Od_IndexTable* Id_MCDC_109; [L187] Od_IndexTable* Id_MCDC_110; [L188] Od_IndexTable* Id_MCDC_111; [L189] UINT32 Id_MCDC_112 [4]; [L190] CanOpenNode Id_MCDC_113; [L191] UINT32 Id_MCDC_114=0; [L429] void * Id_MCDC_143; [L430] void * Id_MCDC_144; [L431] void * Id_MCDC_145; [L432] void * Id_MCDC_146; [L433] void * Id_MCDC_147; [L434] void * Id_MCDC_148; [L435] int Id_MCDC_149; [L436] int Id_MCDC_150; [L437] int Id_MCDC_151; [L438] int Id_MCDC_152; [L439] int Id_MCDC_153; [L440] int Id_MCDC_154; [L441] int Id_MCDC_155; [L442] short Id_MCDC_156; [L443] short Id_MCDC_157; [L444] FILE* Id_MCDC_158; [L445] unsigned short Id_MCDC_159; [L446] unsigned short Id_MCDC_160; [L447] unsigned short Id_MCDC_161=0; [L448] unsigned short Id_MCDC_162=0; [L449] char Id_MCDC_163; [L450] char Id_MCDC_164; [L451] Id_MCDC_158 = fopen("in.eds", "r") [L452] COND FALSE !(Id_MCDC_158 == (( void * ) 0)) [L457] CALL Id_MCDC_100() [L422] int Id_MCDC_141; [L423] void * Id_MCDC_142; [L424] CALL Id_MCDC_99() [L402] CHAR Id_MCDC_139 [4]={0, 0, 0, 0}; [L403] UINT32 Id_MCDC_140=0; [L404] Id_MCDC_113.Id_MCDC_66 = ( PDO_Buffer* ) malloc(372) [L405] CALL Id_MCDC_97() [L333] UINT32 Id_MCDC_123; [L334] UINT32 Id_MCDC_124; [L335] UINT32 Id_MCDC_125; [L336] UINT32 Id_MCDC_126; [L337] UINT32 Id_MCDC_127; [L338] UINT32 Id_MCDC_128=0x00; [L339] UINT16 Id_MCDC_129; [L340] UINT32 Id_MCDC_130=0x00; [L341] UINT32 Id_MCDC_131=0x00; [L342] UINT8 Id_MCDC_35=0; [L343] UINT8 Id_MCDC_132=0; [L344] UINT8 Id_MCDC_36=0; [L345] UINT8 Id_MCDC_133=0; [L346] UINT8 Id_MCDC_134=0x00; [L347] INT32 Id_MCDC_135; [L348] void * Id_MCDC_136; [L349] UINT32* Id_MCDC_137; [L350] UINT16 Id_MCDC_138; [L351] Id_MCDC_123 = 0x1800 [L352] Id_MCDC_132 = 0 [L352] COND FALSE !(Id_MCDC_132 < 4) [L356] COND FALSE !(Id_MCDC_123 <= 0x1803) [L398] return 0x00; [L338] UINT32 Id_MCDC_128=0x00; [L398] return 0x00; [L340] UINT32 Id_MCDC_130=0x00; [L398] return 0x00; [L341] UINT32 Id_MCDC_131=0x00; [L398] return 0x00; [L398] return 0x00; [L398] return 0x00; [L405] RET Id_MCDC_97() [L406] Id_MCDC_140 = 0 [L406] COND FALSE !(Id_MCDC_140 < 4) [L417] CALL Id_MCDC_95(4, Id_MCDC_139) [L282] UINT32 Id_MCDC_121=0; [L283] UINT32 Id_MCDC_122=0; [L284] COND FALSE !(Id_MCDC_93 < 2) [L288] COND FALSE !(Id_MCDC_93 != 2) [L294] EXPR Id_MCDC_94[1] [L294] Id_MCDC_122 = Id_MCDC_94[1] [L296] EXPR Id_MCDC_94[0] [L296] CALL Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L251] UINT32 Id_MCDC_117=0; [L252] UINT32 Id_MCDC_118=0; [L253] UINT32 Id_MCDC_119=1; [L254] UINT32 Id_MCDC_120=0; [L255] COND TRUE Id_MCDC_90 > Id_MCDC_91 [L257] Id_MCDC_117 = Id_MCDC_90 [L258] Id_MCDC_118 = Id_MCDC_91 [L270] COND TRUE Id_MCDC_119 != 0 [L272] CALL avoid_zero(Id_MCDC_118 != 0) [L11] COND FALSE !(!y) [L272] RET avoid_zero(Id_MCDC_118 != 0) [L273] Id_MCDC_120 = ( UINT32 ) (Id_MCDC_117 / Id_MCDC_118) [L274] CALL __VERIFIER_assert(( long long ) (Id_MCDC_117 - (Id_MCDC_120 * Id_MCDC_118)) >= 0 && ( long long ) (Id_MCDC_117 - (Id_MCDC_120 * Id_MCDC_118)) <= 4294967295) [L461] COND TRUE ! (Id_MCDC_103) [L463] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 135 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 3186.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 41.4ms, AutomataDifference: 1653.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 22.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 145 SDtfs, 204 SDslu, 29 SDs, 0 SdLazy, 107 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 701.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 671.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 195.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...