/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:40:30,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:40:30,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:40:30,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:40:30,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:40:30,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:40:30,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:40:30,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:40:30,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:40:30,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:40:30,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:40:30,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:40:30,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:40:30,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:40:30,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:40:30,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:40:30,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:40:30,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:40:30,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:40:30,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:40:30,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:40:30,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:40:30,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:40:30,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:40:30,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:40:30,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:40:30,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:40:30,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:40:30,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:40:30,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:40:30,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:40:30,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:40:30,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:40:30,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:40:30,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:40:30,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:40:30,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:40:30,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:40:30,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:40:30,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:40:30,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:40:30,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 09:40:30,922 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:40:30,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:40:30,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:40:30,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:40:30,924 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:40:30,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:40:30,925 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:40:30,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:40:30,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:40:30,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:40:30,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:40:30,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:40:30,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:40:30,927 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:40:30,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:40:30,928 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:40:30,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:40:30,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:40:30,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:40:30,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:40:30,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:40:30,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:40:30,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:40:30,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:40:30,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:40:30,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:40:30,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:40:30,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:40:30,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:40:30,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:40:31,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:40:31,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:40:31,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:40:31,440 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:40:31,441 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:40:31,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c [2020-10-29 09:40:31,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab9dec891/3e9e3e51f18d48b695cf98a63d7d1510/FLAGc9f4d21b7 [2020-10-29 09:40:32,201 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:40:32,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/ofuf_3.c [2020-10-29 09:40:32,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab9dec891/3e9e3e51f18d48b695cf98a63d7d1510/FLAGc9f4d21b7 [2020-10-29 09:40:32,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab9dec891/3e9e3e51f18d48b695cf98a63d7d1510 [2020-10-29 09:40:32,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:40:32,541 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:40:32,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:40:32,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:40:32,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:40:32,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:40:32" (1/1) ... [2020-10-29 09:40:32,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff2d4e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:32, skipping insertion in model container [2020-10-29 09:40:32,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:40:32" (1/1) ... [2020-10-29 09:40:32,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:40:32,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:40:32,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:40:32,967 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:40:33,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:40:33,084 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:40:33,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33 WrapperNode [2020-10-29 09:40:33,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:40:33,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:40:33,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:40:33,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:40:33,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33" (1/1) ... [2020-10-29 09:40:33,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33" (1/1) ... [2020-10-29 09:40:33,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33" (1/1) ... [2020-10-29 09:40:33,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33" (1/1) ... [2020-10-29 09:40:33,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33" (1/1) ... [2020-10-29 09:40:33,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33" (1/1) ... [2020-10-29 09:40:33,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33" (1/1) ... [2020-10-29 09:40:33,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:40:33,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:40:33,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:40:33,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:40:33,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-29 09:40:33,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:40:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:40:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:40:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 09:40:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-10-29 09:40:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2020-10-29 09:40:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2020-10-29 09:40:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2020-10-29 09:40:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2020-10-29 09:40:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2020-10-29 09:40:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2020-10-29 09:40:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2020-10-29 09:40:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:40:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 09:40:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:40:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:40:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:40:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:40:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 09:40:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-10-29 09:40:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-29 09:40:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-10-29 09:40:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2020-10-29 09:40:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2020-10-29 09:40:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2020-10-29 09:40:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2020-10-29 09:40:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 09:40:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2020-10-29 09:40:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2020-10-29 09:40:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-29 09:40:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:40:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 09:40:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 09:40:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:40:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:40:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:40:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:40:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 09:40:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 09:40:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:40:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-29 09:40:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:40:34,400 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:40:34,400 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-29 09:40:34,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:40:34 BoogieIcfgContainer [2020-10-29 09:40:34,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:40:34,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:40:34,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:40:34,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:40:34,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:40:32" (1/3) ... [2020-10-29 09:40:34,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2b1b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:40:34, skipping insertion in model container [2020-10-29 09:40:34,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:40:33" (2/3) ... [2020-10-29 09:40:34,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2b1b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:40:34, skipping insertion in model container [2020-10-29 09:40:34,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:40:34" (3/3) ... [2020-10-29 09:40:34,411 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_3.c [2020-10-29 09:40:34,424 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:40:34,430 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:40:34,444 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:40:34,472 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:40:34,473 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:40:34,473 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:40:34,473 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:40:34,473 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:40:34,473 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:40:34,473 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:40:34,473 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:40:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-10-29 09:40:34,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-29 09:40:34,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:40:34,506 INFO L422 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] [2020-10-29 09:40:34,507 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:40:34,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:40:34,513 INFO L82 PathProgramCache]: Analyzing trace with hash 796062378, now seen corresponding path program 1 times [2020-10-29 09:40:34,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:40:34,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083888284] [2020-10-29 09:40:34,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:40:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:40:34,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:40:35,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083888284] [2020-10-29 09:40:35,042 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-10-29 09:40:35,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:40:35,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-29 09:40:35,043 ERROR L205 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-10-29 09:40:35,044 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:40:35,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:40:35,071 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-29 09:40:35,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:40:35 BoogieIcfgContainer [2020-10-29 09:40:35,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:40:35,074 INFO L168 Benchmark]: Toolchain (without parser) took 2537.37 ms. Allocated memory is still 160.4 MB. Free memory was 136.1 MB in the beginning and 96.8 MB in the end (delta: 39.3 MB). Peak memory consumption was 40.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:35,075 INFO L168 Benchmark]: CDTParser took 1.62 ms. Allocated memory is still 125.8 MB. Free memory is still 102.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:40:35,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.18 ms. Allocated memory is still 160.4 MB. Free memory was 135.4 MB in the beginning and 118.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:35,077 INFO L168 Benchmark]: Boogie Preprocessor took 133.20 ms. Allocated memory is still 160.4 MB. Free memory was 118.3 MB in the beginning and 114.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:35,078 INFO L168 Benchmark]: RCFGBuilder took 1182.93 ms. Allocated memory is still 160.4 MB. Free memory was 114.6 MB in the beginning and 132.5 MB in the end (delta: -17.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:35,078 INFO L168 Benchmark]: TraceAbstraction took 667.06 ms. Allocated memory is still 160.4 MB. Free memory was 132.0 MB in the beginning and 96.8 MB in the end (delta: 35.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:40:35,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.62 ms. Allocated memory is still 125.8 MB. Free memory is still 102.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 539.18 ms. Allocated memory is still 160.4 MB. Free memory was 135.4 MB in the beginning and 118.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 133.20 ms. Allocated memory is still 160.4 MB. Free memory was 118.3 MB in the beginning and 114.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1182.93 ms. Allocated memory is still 160.4 MB. Free memory was 114.6 MB in the beginning and 132.5 MB in the end (delta: -17.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 667.06 ms. Allocated memory is still 160.4 MB. Free memory was 132.0 MB in the beginning and 96.8 MB in the end (delta: 35.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() 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 TRUE !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_120 * Id_MCDC_118) >= 0 && ( long long ) (Id_MCDC_120 * Id_MCDC_118) <= 4294967295) [L461] COND TRUE ! (Id_MCDC_103) [L463] CALL reach_error() [L3] __assert_fail("0", "ofuf_3.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...