/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/indp3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:49:11,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:49:11,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:49:11,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:49:11,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:49:11,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:49:11,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:49:11,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:49:11,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:49:11,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:49:11,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:49:11,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:49:11,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:49:11,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:49:11,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:49:11,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:49:11,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:49:11,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:49:11,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:49:11,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:49:11,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:49:11,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:49:11,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:49:11,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:49:11,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:49:11,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:49:11,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:49:11,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:49:11,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:49:11,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:49:11,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:49:11,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:49:11,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:49:11,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:49:11,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:49:11,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:49:11,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:49:11,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:49:11,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:49:11,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:49:11,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:49:11,186 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 [2020-09-24 21:49:11,213 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:49:11,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:49:11,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:49:11,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:49:11,215 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:49:11,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:49:11,215 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:49:11,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:49:11,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:49:11,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:49:11,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:49:11,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:49:11,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:49:11,216 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:49:11,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:49:11,217 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:49:11,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:49:11,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:49:11,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:49:11,218 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:49:11,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:49:11,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:11,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:49:11,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:49:11,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:49:11,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:49:11,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:49:11,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:49:11,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:49:11,220 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:49:11,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:49:11,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:49:11,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:49:11,705 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:49:11,706 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:49:11,707 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp3f.c [2020-09-24 21:49:11,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09e8fba2a/88b27c1767e04398a31ed6ebfe07a307/FLAG2d84de8a0 [2020-09-24 21:49:12,316 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:49:12,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp3f.c [2020-09-24 21:49:12,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09e8fba2a/88b27c1767e04398a31ed6ebfe07a307/FLAG2d84de8a0 [2020-09-24 21:49:12,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09e8fba2a/88b27c1767e04398a31ed6ebfe07a307 [2020-09-24 21:49:12,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:49:12,692 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:49:12,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:12,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:49:12,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:49:12,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:12" (1/1) ... [2020-09-24 21:49:12,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba1d067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:12, skipping insertion in model container [2020-09-24 21:49:12,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:12" (1/1) ... [2020-09-24 21:49:12,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:49:12,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:49:13,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:13,037 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:49:13,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:13,077 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:49:13,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13 WrapperNode [2020-09-24 21:49:13,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:13,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:49:13,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:49:13,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:49:13,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13" (1/1) ... [2020-09-24 21:49:13,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13" (1/1) ... [2020-09-24 21:49:13,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13" (1/1) ... [2020-09-24 21:49:13,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13" (1/1) ... [2020-09-24 21:49:13,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13" (1/1) ... [2020-09-24 21:49:13,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13" (1/1) ... [2020-09-24 21:49:13,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13" (1/1) ... [2020-09-24 21:49:13,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:49:13,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:49:13,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:49:13,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:49:13,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13" (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 [2020-09-24 21:49:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:49:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:49:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:49:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:49:13,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:49:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:49:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:49:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:49:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:49:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:49:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:49:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:49:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:49:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:49:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:49:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:49:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:49:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:49:13,658 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:49:13,658 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:49:13,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:13 BoogieIcfgContainer [2020-09-24 21:49:13,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:49:13,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:49:13,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:49:13,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:49:13,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:49:12" (1/3) ... [2020-09-24 21:49:13,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7158c529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:13, skipping insertion in model container [2020-09-24 21:49:13,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:13" (2/3) ... [2020-09-24 21:49:13,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7158c529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:13, skipping insertion in model container [2020-09-24 21:49:13,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:13" (3/3) ... [2020-09-24 21:49:13,673 INFO L109 eAbstractionObserver]: Analyzing ICFG indp3f.c [2020-09-24 21:49:13,684 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:49:13,694 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:49:13,717 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:49:13,749 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:49:13,749 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:49:13,749 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:49:13,749 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:49:13,749 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:49:13,750 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:49:13,750 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:49:13,750 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:49:13,772 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-09-24 21:49:13,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 21:49:13,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:13,781 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] [2020-09-24 21:49:13,781 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:13,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:13,787 INFO L82 PathProgramCache]: Analyzing trace with hash 13261349, now seen corresponding path program 1 times [2020-09-24 21:49:13,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:13,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901976711] [2020-09-24 21:49:13,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:13,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:14,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:14,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:14,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:14,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901976711] [2020-09-24 21:49:14,322 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-09-24 21:49:14,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:14,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-09-24 21:49:14,323 ERROR L206 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-09-24 21:49:14,325 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:49:14,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:49:14,358 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-24 21:49:14,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:49:14 BoogieIcfgContainer [2020-09-24 21:49:14,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:49:14,364 INFO L168 Benchmark]: Toolchain (without parser) took 1674.06 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.8 MB in the beginning and 134.6 MB in the end (delta: -30.8 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:14,367 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-24 21:49:14,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.81 ms. Allocated memory is still 140.5 MB. Free memory was 103.4 MB in the beginning and 93.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:14,370 INFO L168 Benchmark]: Boogie Preprocessor took 132.61 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.0 MB in the beginning and 180.3 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:14,372 INFO L168 Benchmark]: RCFGBuilder took 452.50 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 160.5 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:14,374 INFO L168 Benchmark]: TraceAbstraction took 694.78 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 134.6 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:14,385 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 384.81 ms. Allocated memory is still 140.5 MB. Free memory was 103.4 MB in the beginning and 93.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.61 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 93.0 MB in the beginning and 180.3 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.50 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 160.5 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 694.78 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 134.6 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: 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: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L28] i=0 [L33] i=0 [L38] i=0 [L43] i=0 [L43] COND FALSE !(i