/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/s3liff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:54:23,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:54:23,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:54:23,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:54:23,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:54:23,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:54:23,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:54:23,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:54:23,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:54:23,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:54:23,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:54:23,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:54:23,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:54:23,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:54:23,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:54:23,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:54:23,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:54:23,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:54:23,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:54:23,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:54:23,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:54:23,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:54:23,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:54:23,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:54:23,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:54:23,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:54:23,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:54:23,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:54:23,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:54:23,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:54:23,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:54:23,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:54:23,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:54:23,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:54:23,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:54:23,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:54:23,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:54:23,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:54:23,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:54:23,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:54:23,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:54:23,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 23:54:23,536 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:54:23,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:54:23,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:54:23,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:54:23,538 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:54:23,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:54:23,539 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 23:54:23,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:54:23,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 23:54:23,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:54:23,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:54:23,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:54:23,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:54:23,541 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 23:54:23,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:54:23,542 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:54:23,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:54:23,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:54:23,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:54:23,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:54:23,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:54:23,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:54:23,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:54:23,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:54:23,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:54:23,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:54:23,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:54:23,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:54:23,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:54:23,544 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-13 23:54:23,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:54:23,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:54:23,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:54:23,880 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:54:23,880 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:54:23,881 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s3liff.c [2020-10-13 23:54:23,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/213257dda/357a8d1555a840e6997f1213fee90717/FLAGe8dc025e0 [2020-10-13 23:54:24,424 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:54:24,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s3liff.c [2020-10-13 23:54:24,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/213257dda/357a8d1555a840e6997f1213fee90717/FLAGe8dc025e0 [2020-10-13 23:54:24,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/213257dda/357a8d1555a840e6997f1213fee90717 [2020-10-13 23:54:24,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:54:24,813 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:54:24,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:54:24,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:54:24,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:54:24,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:54:24" (1/1) ... [2020-10-13 23:54:24,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9c96c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:24, skipping insertion in model container [2020-10-13 23:54:24,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:54:24" (1/1) ... [2020-10-13 23:54:24,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:54:24,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:54:25,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:54:25,037 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:54:25,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:54:25,162 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:54:25,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25 WrapperNode [2020-10-13 23:54:25,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:54:25,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:54:25,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:54:25,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:54:25,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25" (1/1) ... [2020-10-13 23:54:25,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25" (1/1) ... [2020-10-13 23:54:25,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25" (1/1) ... [2020-10-13 23:54:25,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25" (1/1) ... [2020-10-13 23:54:25,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25" (1/1) ... [2020-10-13 23:54:25,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25" (1/1) ... [2020-10-13 23:54:25,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25" (1/1) ... [2020-10-13 23:54:25,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:54:25,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:54:25,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:54:25,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:54:25,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:54:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:54:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:54:25,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 23:54:25,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 23:54:25,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:54:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:54:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 23:54:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 23:54:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 23:54:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:54:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 23:54:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:54:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 23:54:25,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 23:54:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:54:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:54:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:54:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:54:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:54:25,591 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:54:25,591 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-13 23:54:25,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:54:25 BoogieIcfgContainer [2020-10-13 23:54:25,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:54:25,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:54:25,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:54:25,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:54:25,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:54:24" (1/3) ... [2020-10-13 23:54:25,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d3a31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:54:25, skipping insertion in model container [2020-10-13 23:54:25,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:54:25" (2/3) ... [2020-10-13 23:54:25,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d3a31c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:54:25, skipping insertion in model container [2020-10-13 23:54:25,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:54:25" (3/3) ... [2020-10-13 23:54:25,605 INFO L109 eAbstractionObserver]: Analyzing ICFG s3liff.c [2020-10-13 23:54:25,616 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:54:25,624 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:54:25,640 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:54:25,665 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:54:25,665 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:54:25,665 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:54:25,666 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:54:25,666 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:54:25,666 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:54:25,666 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:54:25,666 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:54:25,689 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-10-13 23:54:25,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-13 23:54:25,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:54:25,702 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] [2020-10-13 23:54:25,703 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:54:25,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:54:25,710 INFO L82 PathProgramCache]: Analyzing trace with hash -88121349, now seen corresponding path program 1 times [2020-10-13 23:54:25,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:54:25,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255788214] [2020-10-13 23:54:25,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:54:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:54:25,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:25,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:25,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:26,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:26,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:54:26,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 23:54:26,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:54:26,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 941 [2020-10-13 23:54:26,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:54:26,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:54:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:54:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 23:54:26,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:54:26,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 23:54:26,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:54:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:54:26,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:26,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:54:26,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:54:26,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:54:26,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:54:26,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:54:26,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:54:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:54:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:54:26,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:54:26,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 23:54:26,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:54:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:54:26,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:26,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:54:26,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:54:26,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:54:26,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:54:26,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:54:26,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:54:26,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:54:26,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 23:54:26,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:54:26,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:54:26,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:54:26,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255788214] [2020-10-13 23:54:26,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:54:26,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 23:54:26,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183182638] [2020-10-13 23:54:26,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 23:54:26,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:54:26,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 23:54:26,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:54:26,952 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-10-13 23:54:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:54:27,095 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2020-10-13 23:54:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 23:54:27,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-13 23:54:27,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:54:27,110 INFO L225 Difference]: With dead ends: 60 [2020-10-13 23:54:27,110 INFO L226 Difference]: Without dead ends: 28 [2020-10-13 23:54:27,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 23:54:27,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-13 23:54:27,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-13 23:54:27,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-13 23:54:27,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2020-10-13 23:54:27,170 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 23 [2020-10-13 23:54:27,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:54:27,171 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-10-13 23:54:27,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 23:54:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2020-10-13 23:54:27,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-13 23:54:27,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:54:27,174 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] [2020-10-13 23:54:27,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:54:27,175 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:54:27,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:54:27,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1099238599, now seen corresponding path program 1 times [2020-10-13 23:54:27,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:54:27,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493721981] [2020-10-13 23:54:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:54:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:54:27,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:27,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:27,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:27,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:54:27,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-13 23:54:27,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:54:27,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-13 23:54:27,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:54:27,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:54:27,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:54:27,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 23:54:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 23:54:27,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-13 23:54:27,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:54:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:54:27,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:27,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:54:27,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:54:27,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:54:27,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:54:27,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:54:27,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:54:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:54:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:54:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:54:27,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:54:27,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 23:54:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:54:27,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:54:27,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:54:27,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:54:27,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:54:27,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:54:27,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:54:27,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:54:27,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:54:27,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:54:27,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:54:27,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:54:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:54:27,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493721981] [2020-10-13 23:54:27,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:54:27,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 23:54:27,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876865234] [2020-10-13 23:54:27,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:54:27,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:54:27,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:54:27,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:54:27,511 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 5 states. [2020-10-13 23:54:27,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:54:27,636 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2020-10-13 23:54:27,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:54:27,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-13 23:54:27,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:54:27,638 INFO L225 Difference]: With dead ends: 44 [2020-10-13 23:54:27,638 INFO L226 Difference]: Without dead ends: 31 [2020-10-13 23:54:27,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:54:27,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-13 23:54:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-13 23:54:27,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-13 23:54:27,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-10-13 23:54:27,649 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 23 [2020-10-13 23:54:27,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:54:27,649 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-10-13 23:54:27,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:54:27,650 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-10-13 23:54:27,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-13 23:54:27,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:54:27,651 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] [2020-10-13 23:54:27,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:54:27,652 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:54:27,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:54:27,652 INFO L82 PathProgramCache]: Analyzing trace with hash 188437731, now seen corresponding path program 1 times [2020-10-13 23:54:27,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:54:27,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652422751] [2020-10-13 23:54:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:54:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 23:54:27,677 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 23:54:27,677 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 23:54:27,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:54:27,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:54:27 BoogieIcfgContainer [2020-10-13 23:54:27,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 23:54:27,705 INFO L168 Benchmark]: Toolchain (without parser) took 2891.84 ms. Allocated memory was 149.4 MB in the beginning and 231.2 MB in the end (delta: 81.8 MB). Free memory was 104.6 MB in the beginning and 110.1 MB in the end (delta: -5.6 MB). Peak memory consumption was 76.2 MB. Max. memory is 7.1 GB. [2020-10-13 23:54:27,706 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 149.4 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 23:54:27,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.47 ms. Allocated memory was 149.4 MB in the beginning and 204.5 MB in the end (delta: 55.1 MB). Free memory was 104.4 MB in the beginning and 183.4 MB in the end (delta: -79.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-10-13 23:54:27,708 INFO L168 Benchmark]: Boogie Preprocessor took 59.99 ms. Allocated memory is still 204.5 MB. Free memory was 183.4 MB in the beginning and 181.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-13 23:54:27,709 INFO L168 Benchmark]: RCFGBuilder took 372.38 ms. Allocated memory is still 204.5 MB. Free memory was 181.2 MB in the beginning and 163.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2020-10-13 23:54:27,710 INFO L168 Benchmark]: TraceAbstraction took 2104.85 ms. Allocated memory was 204.5 MB in the beginning and 231.2 MB in the end (delta: 26.7 MB). Free memory was 163.1 MB in the beginning and 110.1 MB in the end (delta: 53.0 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-10-13 23:54:27,714 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 149.4 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 346.47 ms. Allocated memory was 149.4 MB in the beginning and 204.5 MB in the end (delta: 55.1 MB). Free memory was 104.4 MB in the beginning and 183.4 MB in the end (delta: -79.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.99 ms. Allocated memory is still 204.5 MB. Free memory was 183.4 MB in the beginning and 181.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.38 ms. Allocated memory is still 204.5 MB. Free memory was 181.2 MB in the beginning and 163.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2104.85 ms. Allocated memory was 204.5 MB in the beginning and 231.2 MB in the end (delta: 26.7 MB). Free memory was 163.1 MB in the beginning and 110.1 MB in the end (delta: 53.0 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a 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 sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = N [L30] i=0 [L30] COND TRUE i