/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 --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 interpolation-heuristic=FIRST --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/res2of.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:30:39,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:30:39,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:30:39,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:30:39,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:30:39,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:30:39,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:30:39,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:30:39,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:30:39,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:30:39,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:30:39,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:30:39,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:30:39,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:30:39,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:30:39,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:30:39,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:30:39,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:30:39,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:30:39,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:30:39,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:30:39,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:30:39,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:30:39,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:30:39,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:30:39,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:30:39,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:30:39,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:30:39,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:30:39,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:30:39,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:30:39,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:30:39,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:30:39,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:30:39,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:30:39,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:30:39,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:30:39,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:30:39,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:30:39,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:30:39,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:30:39,884 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 [2020-09-21 11:30:39,910 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:30:39,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:30:39,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:30:39,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:30:39,912 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:30:39,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:30:39,912 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:30:39,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:30:39,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:30:39,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:30:39,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:30:39,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:30:39,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:30:39,914 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:30:39,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:30:39,914 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:30:39,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:30:39,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:30:39,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:30:39,915 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:30:39,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:30:39,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:30:39,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:30:39,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:30:39,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:30:39,916 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:30:39,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:30:39,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:30:39,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:30:39,917 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:30:40,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:30:40,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:30:40,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:30:40,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:30:40,471 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:30:40,472 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res2of.c [2020-09-21 11:30:40,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ba673ef4/a4d96c496e3444dd879dab24d7ac70c4/FLAG4ac9ae0ef [2020-09-21 11:30:41,082 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:30:41,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res2of.c [2020-09-21 11:30:41,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ba673ef4/a4d96c496e3444dd879dab24d7ac70c4/FLAG4ac9ae0ef [2020-09-21 11:30:41,426 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ba673ef4/a4d96c496e3444dd879dab24d7ac70c4 [2020-09-21 11:30:41,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:30:41,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:30:41,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:30:41,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:30:41,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:30:41,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:30:41" (1/1) ... [2020-09-21 11:30:41,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25814f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41, skipping insertion in model container [2020-09-21 11:30:41,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:30:41" (1/1) ... [2020-09-21 11:30:41,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:30:41,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:30:41,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:30:41,749 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:30:41,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:30:41,797 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:30:41,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41 WrapperNode [2020-09-21 11:30:41,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:30:41,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:30:41,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:30:41,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:30:41,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41" (1/1) ... [2020-09-21 11:30:41,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41" (1/1) ... [2020-09-21 11:30:41,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41" (1/1) ... [2020-09-21 11:30:41,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41" (1/1) ... [2020-09-21 11:30:41,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41" (1/1) ... [2020-09-21 11:30:41,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41" (1/1) ... [2020-09-21 11:30:41,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41" (1/1) ... [2020-09-21 11:30:41,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:30:41,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:30:41,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:30:41,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:30:41,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41" (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 [2020-09-21 11:30:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:30:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:30:42,008 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 11:30:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-21 11:30:42,009 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:30:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:30:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 11:30:42,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 11:30:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-21 11:30:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:30:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:30:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:30:42,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:30:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:30:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:30:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:30:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:30:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:30:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:30:42,397 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:30:42,398 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-21 11:30:42,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:30:42 BoogieIcfgContainer [2020-09-21 11:30:42,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:30:42,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:30:42,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:30:42,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:30:42,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:30:41" (1/3) ... [2020-09-21 11:30:42,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c1a79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:30:42, skipping insertion in model container [2020-09-21 11:30:42,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:30:41" (2/3) ... [2020-09-21 11:30:42,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c1a79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:30:42, skipping insertion in model container [2020-09-21 11:30:42,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:30:42" (3/3) ... [2020-09-21 11:30:42,413 INFO L109 eAbstractionObserver]: Analyzing ICFG res2of.c [2020-09-21 11:30:42,424 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:30:42,434 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:30:42,455 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:30:42,483 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:30:42,483 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:30:42,483 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:30:42,484 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:30:42,484 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:30:42,484 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:30:42,484 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:30:42,485 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:30:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-09-21 11:30:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-21 11:30:42,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:30:42,516 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] [2020-09-21 11:30:42,517 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:30:42,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:30:42,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1797528887, now seen corresponding path program 1 times [2020-09-21 11:30:42,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:30:42,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704576519] [2020-09-21 11:30:42,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:30:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:42,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:42,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:42,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:42,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:42,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:30:42,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:42,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:30:42,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:30:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:30:42,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:30:42,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:30:42,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:30:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:42,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:42,787 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:42,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:42,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:42,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:30:42,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:42,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:30:42,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:30:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:30:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:30:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:30:42,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 11:30:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:42,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:42,824 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:42,824 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:42,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:42,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:30:42,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:42,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:30:42,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:30:42,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:30:42,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:30:42,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:30:42,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:30:42,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704576519] [2020-09-21 11:30:42,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:30:42,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:30:42,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557603915] [2020-09-21 11:30:42,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:30:42,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:30:42,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:30:42,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:30:42,886 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2020-09-21 11:30:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:30:43,054 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2020-09-21 11:30:43,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:30:43,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-09-21 11:30:43,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:30:43,068 INFO L225 Difference]: With dead ends: 76 [2020-09-21 11:30:43,068 INFO L226 Difference]: Without dead ends: 36 [2020-09-21 11:30:43,073 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 [2020-09-21 11:30:43,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-21 11:30:43,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-21 11:30:43,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-21 11:30:43,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-09-21 11:30:43,125 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 29 [2020-09-21 11:30:43,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:30:43,126 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-09-21 11:30:43,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:30:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2020-09-21 11:30:43,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-21 11:30:43,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:30:43,128 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] [2020-09-21 11:30:43,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:30:43,129 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:30:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:30:43,129 INFO L82 PathProgramCache]: Analyzing trace with hash 120259143, now seen corresponding path program 1 times [2020-09-21 11:30:43,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:30:43,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382120532] [2020-09-21 11:30:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:30:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:43,208 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:43,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:43,210 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:43,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:43,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:30:43,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:43,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:30:43,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:30:43,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:30:43,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:30:43,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-21 11:30:43,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:30:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:43,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:43,322 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:43,322 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:43,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:43,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:30:43,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:43,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:30:43,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:43,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:30:43,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:30:43,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:30:43,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:30:43,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 11:30:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:30:43,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:30:43,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:30:43,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:30:43,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:30:43,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:30:43,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:30:43,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:30:43,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:30:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:30:43,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:30:43,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:30:43,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:30:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:30:43,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382120532] [2020-09-21 11:30:43,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:30:43,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:30:43,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072159512] [2020-09-21 11:30:43,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:30:43,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:30:43,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:30:43,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:30:43,348 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 5 states. [2020-09-21 11:30:43,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:30:43,531 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2020-09-21 11:30:43,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:30:43,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-09-21 11:30:43,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:30:43,534 INFO L225 Difference]: With dead ends: 69 [2020-09-21 11:30:43,534 INFO L226 Difference]: Without dead ends: 48 [2020-09-21 11:30:43,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:30:43,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-21 11:30:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2020-09-21 11:30:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-21 11:30:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-09-21 11:30:43,547 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 29 [2020-09-21 11:30:43,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:30:43,547 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-09-21 11:30:43,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:30:43,565 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-09-21 11:30:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 11:30:43,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:30:43,567 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] [2020-09-21 11:30:43,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:30:43,568 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:30:43,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:30:43,568 INFO L82 PathProgramCache]: Analyzing trace with hash -774790125, now seen corresponding path program 1 times [2020-09-21 11:30:43,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:30:43,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370730524] [2020-09-21 11:30:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:30:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:30:43,684 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:30:43,685 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:30:43,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:30:43,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:30:43 BoogieIcfgContainer [2020-09-21 11:30:43,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:30:43,716 INFO L168 Benchmark]: Toolchain (without parser) took 2273.99 ms. Allocated memory was 137.9 MB in the beginning and 229.6 MB in the end (delta: 91.8 MB). Free memory was 101.6 MB in the beginning and 193.5 MB in the end (delta: -91.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:30:43,717 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:30:43,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.92 ms. Allocated memory is still 137.9 MB. Free memory was 101.0 MB in the beginning and 90.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:30:43,719 INFO L168 Benchmark]: Boogie Preprocessor took 132.18 ms. Allocated memory was 137.9 MB in the beginning and 198.7 MB in the end (delta: 60.8 MB). Free memory was 90.0 MB in the beginning and 175.9 MB in the end (delta: -85.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:30:43,720 INFO L168 Benchmark]: RCFGBuilder took 471.86 ms. Allocated memory is still 198.7 MB. Free memory was 175.9 MB in the beginning and 155.6 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:30:43,721 INFO L168 Benchmark]: TraceAbstraction took 1308.33 ms. Allocated memory was 198.7 MB in the beginning and 229.6 MB in the end (delta: 30.9 MB). Free memory was 154.9 MB in the beginning and 193.5 MB in the end (delta: -38.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:30:43,724 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 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 352.92 ms. Allocated memory is still 137.9 MB. Free memory was 101.0 MB in the beginning and 90.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.18 ms. Allocated memory was 137.9 MB in the beginning and 198.7 MB in the end (delta: 60.8 MB). Free memory was 90.0 MB in the beginning and 175.9 MB in the end (delta: -85.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 471.86 ms. Allocated memory is still 198.7 MB. Free memory was 175.9 MB in the beginning and 155.6 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1308.33 ms. Allocated memory was 198.7 MB in the beginning and 229.6 MB in the end (delta: 30.9 MB). Free memory was 154.9 MB in the beginning and 193.5 MB in the end (delta: -38.7 MB). There was no memory consumed. 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); [L28] int *b = malloc(sizeof(int)*N); [L29] int *c = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i