/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=NARROWEST --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_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:20:50,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:20:50,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:20:50,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:20:50,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:20:50,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:20:50,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:20:50,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:20:50,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:20:50,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:20:50,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:20:50,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:20:50,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:20:50,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:20:50,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:20:50,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:20:50,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:20:50,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:20:50,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:20:50,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:20:50,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:20:50,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:20:50,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:20:50,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:20:50,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:20:50,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:20:50,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:20:50,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:20:50,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:20:50,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:20:50,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:20:50,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:20:50,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:20:50,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:20:50,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:20:50,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:20:50,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:20:50,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:20:50,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:20:50,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:20:50,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:20:50,386 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 02:20:50,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:20:50,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:20:50,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:20:50,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:20:50,416 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:20:50,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:20:50,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:20:50,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:20:50,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:20:50,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:20:50,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:20:50,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:20:50,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:20:50,418 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:20:50,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:20:50,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:20:50,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:20:50,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:20:50,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:20:50,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:20:50,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:20:50,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:20:50,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:20:50,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:20:50,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:20:50,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:20:50,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:20:50,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:20:50,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:20:50,422 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:20:50,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:20:50,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:20:50,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:20:50,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:20:50,914 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:20:50,915 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c [2020-09-25 02:20:51,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef3bfe191/9be5a28099f04cbfb832d4a9b72a65c0/FLAG5cd098486 [2020-09-25 02:20:51,620 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:20:51,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c [2020-09-25 02:20:51,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef3bfe191/9be5a28099f04cbfb832d4a9b72a65c0/FLAG5cd098486 [2020-09-25 02:20:51,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ef3bfe191/9be5a28099f04cbfb832d4a9b72a65c0 [2020-09-25 02:20:51,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:20:51,912 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:20:51,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:20:51,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:20:51,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:20:51,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:20:51" (1/1) ... [2020-09-25 02:20:51,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1aa6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:51, skipping insertion in model container [2020-09-25 02:20:51,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:20:51" (1/1) ... [2020-09-25 02:20:51,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:20:51,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:20:52,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:20:52,436 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:20:52,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:20:52,576 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:20:52,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52 WrapperNode [2020-09-25 02:20:52,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:20:52,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:20:52,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:20:52,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:20:52,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52" (1/1) ... [2020-09-25 02:20:52,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52" (1/1) ... [2020-09-25 02:20:52,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52" (1/1) ... [2020-09-25 02:20:52,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52" (1/1) ... [2020-09-25 02:20:52,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52" (1/1) ... [2020-09-25 02:20:52,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52" (1/1) ... [2020-09-25 02:20:52,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52" (1/1) ... [2020-09-25 02:20:52,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:20:52,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:20:52,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:20:52,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:20:52,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52" (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 02:20:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:20:52,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:20:52,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:20:52,811 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-09-25 02:20:52,811 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_107 [2020-09-25 02:20:52,812 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_110 [2020-09-25 02:20:52,812 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_113 [2020-09-25 02:20:52,812 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_114 [2020-09-25 02:20:52,813 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_115 [2020-09-25 02:20:52,813 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_117 [2020-09-25 02:20:52,814 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_118 [2020-09-25 02:20:52,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:20:52,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:20:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:20:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:20:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:20:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-09-25 02:20:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-09-25 02:20:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_107 [2020-09-25 02:20:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_110 [2020-09-25 02:20:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_113 [2020-09-25 02:20:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_114 [2020-09-25 02:20:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_115 [2020-09-25 02:20:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:20:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_117 [2020-09-25 02:20:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_118 [2020-09-25 02:20:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-09-25 02:20:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:20:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:20:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:20:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:20:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:20:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:20:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:20:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:20:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:20:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:20:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:20:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 02:20:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:20:54,048 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:20:54,048 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-09-25 02:20:54,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:20:54 BoogieIcfgContainer [2020-09-25 02:20:54,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:20:54,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:20:54,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:20:54,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:20:54,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:20:51" (1/3) ... [2020-09-25 02:20:54,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e5bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:20:54, skipping insertion in model container [2020-09-25 02:20:54,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:20:52" (2/3) ... [2020-09-25 02:20:54,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e5bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:20:54, skipping insertion in model container [2020-09-25 02:20:54,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:20:54" (3/3) ... [2020-09-25 02:20:54,068 INFO L109 eAbstractionObserver]: Analyzing ICFG ofuf_1.c [2020-09-25 02:20:54,078 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:20:54,090 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:20:54,114 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:20:54,147 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:20:54,147 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:20:54,147 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:20:54,147 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:20:54,147 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:20:54,147 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:20:54,148 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:20:54,148 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:20:54,182 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states. [2020-09-25 02:20:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-09-25 02:20:54,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:20:54,208 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] [2020-09-25 02:20:54,209 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:20:54,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:20:54,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1664563727, now seen corresponding path program 1 times [2020-09-25 02:20:54,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:20:54,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374121612] [2020-09-25 02:20:54,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:20:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:20:54,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:54,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:55,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:55,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:20:57,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374121612] [2020-09-25 02:20:57,260 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-09-25 02:20:57,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:20:57,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-09-25 02:20:57,262 ERROR L206 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-09-25 02:20:57,264 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:20:57,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:20:57,324 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-25 02:20:57,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:20:57 BoogieIcfgContainer [2020-09-25 02:20:57,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:20:57,331 INFO L168 Benchmark]: Toolchain (without parser) took 5419.52 ms. Allocated memory was 140.0 MB in the beginning and 248.0 MB in the end (delta: 108.0 MB). Free memory was 102.5 MB in the beginning and 197.8 MB in the end (delta: -95.2 MB). Peak memory consumption was 123.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:57,333 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 02:20:57,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.59 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 173.4 MB in the end (delta: -71.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:57,338 INFO L168 Benchmark]: Boogie Preprocessor took 129.14 ms. Allocated memory is still 203.4 MB. Free memory was 173.4 MB in the beginning and 169.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:57,339 INFO L168 Benchmark]: RCFGBuilder took 1350.40 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 169.4 MB in the beginning and 194.6 MB in the end (delta: -25.2 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:57,341 INFO L168 Benchmark]: TraceAbstraction took 3266.82 ms. Allocated memory was 237.0 MB in the beginning and 248.0 MB in the end (delta: 11.0 MB). Free memory was 193.2 MB in the beginning and 197.8 MB in the end (delta: -4.6 MB). Peak memory consumption was 116.7 MB. Max. memory is 7.1 GB. [2020-09-25 02:20:57,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.59 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 173.4 MB in the end (delta: -71.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.14 ms. Allocated memory is still 203.4 MB. Free memory was 173.4 MB in the beginning and 169.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1350.40 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 169.4 MB in the beginning and 194.6 MB in the end (delta: -25.2 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3266.82 ms. Allocated memory was 237.0 MB in the beginning and 248.0 MB in the end (delta: 11.0 MB). Free memory was 193.2 MB in the beginning and 197.8 MB in the end (delta: -4.6 MB). Peak memory consumption was 116.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 487]: 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: [L204] unsigned int Id_MCDC_122; [L205] UINT16 Id_MCDC_123; [L206] UINT16 Id_MCDC_124; [L207] Od_IndexTable* Id_MCDC_125; [L208] Od_IndexTable* Id_MCDC_126; [L209] Od_IndexTable* Id_MCDC_127; [L210] Od_IndexTable* Id_MCDC_128; [L211] Od_IndexTable* Id_MCDC_129; [L212] UINT32 Id_MCDC_130 [4]; [L213] CanOpenNode Id_MCDC_131; [L214] UINT32 Id_MCDC_132=0; [L452] void * Id_MCDC_161; [L453] void * Id_MCDC_162; [L454] void * Id_MCDC_163; [L455] void * Id_MCDC_164; [L456] void * Id_MCDC_165; [L457] void * Id_MCDC_166; [L458] int Id_MCDC_167; [L459] int Id_MCDC_168; [L460] int Id_MCDC_169; [L461] int Id_MCDC_170; [L462] int Id_MCDC_171; [L463] int Id_MCDC_172; [L464] int Id_MCDC_173; [L465] short Id_MCDC_174; [L466] short Id_MCDC_175; [L467] FILE* Id_MCDC_176; [L468] unsigned short Id_MCDC_177; [L469] unsigned short Id_MCDC_178; [L470] unsigned short Id_MCDC_179=0; [L471] unsigned short Id_MCDC_180=0; [L472] char Id_MCDC_181; [L473] char Id_MCDC_182; [L474] POS_CTRL_MODE Id_MCDC_183; [L475] Id_MCDC_176 = fopen("in.eds", "r") [L476] COND FALSE !(Id_MCDC_176 == (( void * ) 0)) [L481] CALL Id_MCDC_118() [L445] int Id_MCDC_159; [L446] void * Id_MCDC_160; [L447] CALL Id_MCDC_117() [L425] CHAR Id_MCDC_157 [4]={0, 0, 0, 0}; [L426] UINT32 Id_MCDC_158=0; [L427] Id_MCDC_131.Id_MCDC_66 = ( PDO_Buffer* ) malloc(372) [L428] CALL Id_MCDC_115() [L356] UINT32 Id_MCDC_141; [L357] UINT32 Id_MCDC_142; [L358] UINT32 Id_MCDC_143; [L359] UINT32 Id_MCDC_144; [L360] UINT32 Id_MCDC_145; [L361] UINT32 Id_MCDC_146=0x00; [L362] UINT16 Id_MCDC_147; [L363] UINT32 Id_MCDC_148=0x00; [L364] UINT32 Id_MCDC_149=0x00; [L365] UINT8 Id_MCDC_35=0; [L366] UINT8 Id_MCDC_150=0; [L367] UINT8 Id_MCDC_36=0; [L368] UINT8 Id_MCDC_151=0; [L369] UINT8 Id_MCDC_152=0x00; [L370] INT32 Id_MCDC_153; [L371] void * Id_MCDC_154; [L372] UINT32* Id_MCDC_155; [L373] UINT16 Id_MCDC_156; [L374] Id_MCDC_141 = 0x1800 [L375] Id_MCDC_150 = 0 [L379] COND FALSE !(Id_MCDC_141 <= 0x1803) [L421] return 0x00; [L361] UINT32 Id_MCDC_146=0x00; [L421] return 0x00; [L363] UINT32 Id_MCDC_148=0x00; [L421] return 0x00; [L364] UINT32 Id_MCDC_149=0x00; [L421] return 0x00; [L421] return 0x00; [L421] return 0x00; [L428] RET Id_MCDC_115() [L429] Id_MCDC_158 = 0 [L429] COND FALSE !(Id_MCDC_158 < 4) [L440] CALL Id_MCDC_113(4, Id_MCDC_157) [L305] UINT32 Id_MCDC_139=0; [L306] UINT32 Id_MCDC_140=0; [L307] COND FALSE !(Id_MCDC_111 < 2) [L311] COND FALSE !(Id_MCDC_111 != 2) [L317] EXPR Id_MCDC_112[1] [L317] Id_MCDC_140 = Id_MCDC_112[1] [L319] EXPR Id_MCDC_112[0] [L319] CALL Id_MCDC_110(Id_MCDC_112[0], Id_MCDC_140) [L274] UINT32 Id_MCDC_135=0; [L275] UINT32 Id_MCDC_136=0; [L276] UINT32 Id_MCDC_137=1; [L277] UINT32 Id_MCDC_138=0; [L278] COND TRUE Id_MCDC_108 > Id_MCDC_109 [L280] Id_MCDC_135 = Id_MCDC_108 [L281] Id_MCDC_136 = Id_MCDC_109 [L293] COND TRUE Id_MCDC_137 != 0 [L295] CALL avoid_zero(Id_MCDC_136 != 0) [L9] COND FALSE !(!y) [L295] RET avoid_zero(Id_MCDC_136 != 0) [L296] CALL __VERIFIER_assert(( long long ) (Id_MCDC_135 / Id_MCDC_136) >= 0 && ( long long ) (Id_MCDC_135 / Id_MCDC_136) <= 4294967295) [L485] COND TRUE ! (Id_MCDC_121) [L487] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 510 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 3.1s, 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=505occurred 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, 2.7s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 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...