/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:11:31,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:11:31,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:11:31,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:11:31,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:11:31,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:11:31,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:11:31,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:11:31,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:11:31,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:11:31,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:11:31,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:11:31,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:11:31,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:11:31,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:11:31,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:11:31,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:11:31,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:11:31,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:11:31,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:11:31,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:11:31,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:11:31,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:11:31,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:11:31,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:11:31,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:11:31,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:11:31,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:11:31,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:11:31,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:11:31,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:11:31,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:11:31,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:11:31,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:11:31,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:11:31,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:11:31,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:11:31,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:11:31,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:11:31,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:11:31,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:11:31,404 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 [2020-09-25 01:11:31,451 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:11:31,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:11:31,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:11:31,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:11:31,454 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:11:31,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:11:31,454 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:11:31,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:11:31,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:11:31,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:11:31,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:11:31,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:11:31,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:11:31,457 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:11:31,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:11:31,458 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:11:31,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:11:31,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:11:31,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:11:31,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:11:31,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:11:31,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:11:31,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:11:31,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:11:31,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:11:31,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:11:31,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:11:31,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:11:31,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:11:31,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=true; [2020-09-25 01:11:31,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:11:31,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:11:31,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:11:31,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:11:31,998 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:11:31,999 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2020-09-25 01:11:32,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f3bff89d/fc3fce780d7e4de8a541838db71acf6e/FLAG24e64600a [2020-09-25 01:11:32,745 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:11:32,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2020-09-25 01:11:32,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f3bff89d/fc3fce780d7e4de8a541838db71acf6e/FLAG24e64600a [2020-09-25 01:11:33,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f3bff89d/fc3fce780d7e4de8a541838db71acf6e [2020-09-25 01:11:33,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:11:33,053 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:11:33,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:11:33,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:11:33,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:11:33,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:33" (1/1) ... [2020-09-25 01:11:33,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700715c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33, skipping insertion in model container [2020-09-25 01:11:33,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:11:33" (1/1) ... [2020-09-25 01:11:33,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:11:33,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:11:33,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:11:33,580 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:11:33,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:11:33,694 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:11:33,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33 WrapperNode [2020-09-25 01:11:33,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:11:33,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:11:33,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:11:33,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:11:33,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 01:11:33,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 01:11:33,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 01:11:33,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 01:11:33,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 01:11:33,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 01:11:33,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (1/1) ... [2020-09-25 01:11:33,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:11:33,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:11:33,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:11:33,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:11:33,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (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 [2020-09-25 01:11:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:11:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:11:33,895 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:11:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-09-25 01:11:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2020-09-25 01:11:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2020-09-25 01:11:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2020-09-25 01:11:33,896 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2020-09-25 01:11:33,898 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2020-09-25 01:11:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2020-09-25 01:11:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2020-09-25 01:11:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:11:33,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 01:11:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:11:33,900 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:11:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:11:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-09-25 01:11:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-25 01:11:33,901 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-09-25 01:11:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2020-09-25 01:11:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2020-09-25 01:11:33,902 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2020-09-25 01:11:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2020-09-25 01:11:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:11:33,903 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2020-09-25 01:11:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2020-09-25 01:11:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 01:11:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:11:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 01:11:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:11:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:11:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:11:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:11:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:11:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:11:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:11:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:11:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:11:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 01:11:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:11:37,219 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:11:37,220 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-09-25 01:11:37,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:37 BoogieIcfgContainer [2020-09-25 01:11:37,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:11:37,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:11:37,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:11:37,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:11:37,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:11:33" (1/3) ... [2020-09-25 01:11:37,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366cabe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:37, skipping insertion in model container [2020-09-25 01:11:37,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:11:33" (2/3) ... [2020-09-25 01:11:37,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@366cabe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:11:37, skipping insertion in model container [2020-09-25 01:11:37,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:11:37" (3/3) ... [2020-09-25 01:11:37,239 INFO L109 eAbstractionObserver]: Analyzing ICFG ofuf_4.c [2020-09-25 01:11:37,249 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:11:37,260 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:11:37,283 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:11:37,316 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:11:37,316 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:11:37,316 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:11:37,316 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:11:37,316 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:11:37,317 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:11:37,317 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:11:37,317 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:11:37,350 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states. [2020-09-25 01:11:37,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 01:11:37,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:11:37,376 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:11:37,377 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:11:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:11:37,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1624982731, now seen corresponding path program 1 times [2020-09-25 01:11:37,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:11:37,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749177878] [2020-09-25 01:11:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:11:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:11:37,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:38,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:38,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:11:39,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749177878] [2020-09-25 01:11:39,629 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-09-25 01:11:39,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:11:39,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-09-25 01:11:39,630 ERROR L206 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-09-25 01:11:39,631 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:11:39,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:11:39,671 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-25 01:11:39,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:11:39 BoogieIcfgContainer [2020-09-25 01:11:39,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:11:39,676 INFO L168 Benchmark]: Toolchain (without parser) took 6624.85 ms. Allocated memory was 138.9 MB in the beginning and 247.5 MB in the end (delta: 108.5 MB). Free memory was 100.6 MB in the beginning and 108.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:11:39,677 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 01:11:39,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.95 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 172.2 MB in the end (delta: -72.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:11:39,679 INFO L168 Benchmark]: Boogie Preprocessor took 99.14 ms. Allocated memory is still 201.9 MB. Free memory was 172.2 MB in the beginning and 167.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:11:39,680 INFO L168 Benchmark]: RCFGBuilder took 3434.51 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 167.9 MB in the beginning and 191.6 MB in the end (delta: -23.7 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2020-09-25 01:11:39,681 INFO L168 Benchmark]: TraceAbstraction took 2441.66 ms. Allocated memory was 233.8 MB in the beginning and 247.5 MB in the end (delta: 13.6 MB). Free memory was 191.6 MB in the beginning and 108.6 MB in the end (delta: 83.0 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. [2020-09-25 01:11:39,686 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.95 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 172.2 MB in the end (delta: -72.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.14 ms. Allocated memory is still 201.9 MB. Free memory was 172.2 MB in the beginning and 167.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3434.51 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 167.9 MB in the beginning and 191.6 MB in the end (delta: -23.7 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2441.66 ms. Allocated memory was 233.8 MB in the beginning and 247.5 MB in the end (delta: 13.6 MB). Free memory was 191.6 MB in the beginning and 108.6 MB in the end (delta: 83.0 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 461]: 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: [L179] unsigned int Id_MCDC_104; [L180] UINT16 Id_MCDC_105; [L181] UINT16 Id_MCDC_106; [L182] Od_IndexTable* Id_MCDC_107; [L183] Od_IndexTable* Id_MCDC_108; [L184] Od_IndexTable* Id_MCDC_109; [L185] Od_IndexTable* Id_MCDC_110; [L186] Od_IndexTable* Id_MCDC_111; [L187] UINT32 Id_MCDC_112 [4]; [L188] CanOpenNode Id_MCDC_113; [L189] UINT32 Id_MCDC_114=0; [L427] void * Id_MCDC_143; [L428] void * Id_MCDC_144; [L429] void * Id_MCDC_145; [L430] void * Id_MCDC_146; [L431] void * Id_MCDC_147; [L432] void * Id_MCDC_148; [L433] int Id_MCDC_149; [L434] int Id_MCDC_150; [L435] int Id_MCDC_151; [L436] int Id_MCDC_152; [L437] int Id_MCDC_153; [L438] int Id_MCDC_154; [L439] int Id_MCDC_155; [L440] short Id_MCDC_156; [L441] short Id_MCDC_157; [L442] FILE* Id_MCDC_158; [L443] unsigned short Id_MCDC_159; [L444] unsigned short Id_MCDC_160; [L445] unsigned short Id_MCDC_161=0; [L446] unsigned short Id_MCDC_162=0; [L447] char Id_MCDC_163; [L448] char Id_MCDC_164; [L449] Id_MCDC_158 = fopen("in.eds", "r") [L450] COND FALSE !(Id_MCDC_158 == (( void * ) 0)) [L455] CALL Id_MCDC_100() [L420] int Id_MCDC_141; [L421] void * Id_MCDC_142; [L422] CALL Id_MCDC_99() [L400] CHAR Id_MCDC_139 [4]={0, 0, 0, 0}; [L401] UINT32 Id_MCDC_140=0; [L402] Id_MCDC_113.Id_MCDC_66 = ( PDO_Buffer* ) malloc(372) [L403] CALL Id_MCDC_97() [L331] UINT32 Id_MCDC_123; [L332] UINT32 Id_MCDC_124; [L333] UINT32 Id_MCDC_125; [L334] UINT32 Id_MCDC_126; [L335] UINT32 Id_MCDC_127; [L336] UINT32 Id_MCDC_128=0x00; [L337] UINT16 Id_MCDC_129; [L338] UINT32 Id_MCDC_130=0x00; [L339] UINT32 Id_MCDC_131=0x00; [L340] UINT8 Id_MCDC_35=0; [L341] UINT8 Id_MCDC_132=0; [L342] UINT8 Id_MCDC_36=0; [L343] UINT8 Id_MCDC_133=0; [L344] UINT8 Id_MCDC_134=0x00; [L345] INT32 Id_MCDC_135; [L346] void * Id_MCDC_136; [L347] UINT32* Id_MCDC_137; [L348] UINT16 Id_MCDC_138; [L349] Id_MCDC_123 = 0x1800 [L350] Id_MCDC_132 = 0 [L354] COND FALSE !(Id_MCDC_123 <= 0x1803) [L396] return 0x00; [L336] UINT32 Id_MCDC_128=0x00; [L396] return 0x00; [L338] UINT32 Id_MCDC_130=0x00; [L396] return 0x00; [L339] UINT32 Id_MCDC_131=0x00; [L396] return 0x00; [L396] return 0x00; [L396] return 0x00; [L403] RET Id_MCDC_97() [L404] Id_MCDC_140 = 0 [L415] CALL Id_MCDC_95(4, Id_MCDC_139) [L280] UINT32 Id_MCDC_121=0; [L281] UINT32 Id_MCDC_122=0; [L282] COND FALSE !(Id_MCDC_93 < 2) [L286] COND FALSE !(Id_MCDC_93 != 2) [L292] EXPR Id_MCDC_94[1] [L292] Id_MCDC_122 = Id_MCDC_94[1] [L294] EXPR Id_MCDC_94[0] [L294] CALL, EXPR Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L249] UINT32 Id_MCDC_117=0; [L250] UINT32 Id_MCDC_118=0; [L251] UINT32 Id_MCDC_119=1; [L252] UINT32 Id_MCDC_120=0; [L253] COND FALSE !(Id_MCDC_90 > Id_MCDC_91) [L259] COND FALSE !(Id_MCDC_90 < Id_MCDC_91) [L266] return Id_MCDC_90; [L294] RET, EXPR Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L294] Id_MCDC_121 = Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L295] CALL avoid_zero(Id_MCDC_121 != 0) [L9] COND FALSE !(!y) [L295] RET avoid_zero(Id_MCDC_121 != 0) [L296] EXPR Id_MCDC_94[0] [L296] EXPR ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) >= 0 && ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) <= 4294967295 [L296] CALL __VERIFIER_assert(( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) >= 0 && ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) <= 4294967295) [L459] COND TRUE ! (Id_MCDC_103) [L461] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 517 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2.3s, 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=512occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 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...