/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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-c90d42b [2020-09-24 19:33:19,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:33:19,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:33:19,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:33:19,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:33:19,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:33:19,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:33:19,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:33:19,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:33:19,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:33:19,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:33:19,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:33:19,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:33:19,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:33:19,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:33:19,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:33:19,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:33:19,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:33:19,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:33:19,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:33:19,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:33:19,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:33:19,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:33:19,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:33:19,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:33:19,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:33:19,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:33:19,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:33:19,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:33:19,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:33:19,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:33:19,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:33:19,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:33:19,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:33:19,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:33:19,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:33:19,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:33:19,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:33:19,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:33:19,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:33:19,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:33:19,680 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 19:33:19,727 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:33:19,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:33:19,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:33:19,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:33:19,730 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:33:19,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:33:19,730 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:33:19,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:33:19,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:33:19,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:33:19,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:33:19,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:33:19,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:33:19,733 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:33:19,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:33:19,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:33:19,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:33:19,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:33:19,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:33:19,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:33:19,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:33:19,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:33:19,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:33:19,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:33:19,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:33:19,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:33:19,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:33:19,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:33:19,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:33:19,736 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:33:20,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:33:20,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:33:20,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:33:20,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:33:20,256 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:33:20,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res2of.c [2020-09-24 19:33:20,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d6226122/ff0ca6767a8b4eceb46a9260fd38f4a7/FLAGd9eeb2be8 [2020-09-24 19:33:20,884 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:33:20,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res2of.c [2020-09-24 19:33:20,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d6226122/ff0ca6767a8b4eceb46a9260fd38f4a7/FLAGd9eeb2be8 [2020-09-24 19:33:21,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d6226122/ff0ca6767a8b4eceb46a9260fd38f4a7 [2020-09-24 19:33:21,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:33:21,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:33:21,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:21,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:33:21,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:33:21,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:21" (1/1) ... [2020-09-24 19:33:21,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aa297b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21, skipping insertion in model container [2020-09-24 19:33:21,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:21" (1/1) ... [2020-09-24 19:33:21,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:33:21,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:33:21,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:21,573 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:33:21,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:21,626 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:33:21,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21 WrapperNode [2020-09-24 19:33:21,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:21,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:33:21,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:33:21,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:33:21,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21" (1/1) ... [2020-09-24 19:33:21,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21" (1/1) ... [2020-09-24 19:33:21,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21" (1/1) ... [2020-09-24 19:33:21,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21" (1/1) ... [2020-09-24 19:33:21,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21" (1/1) ... [2020-09-24 19:33:21,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21" (1/1) ... [2020-09-24 19:33:21,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21" (1/1) ... [2020-09-24 19:33:21,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:33:21,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:33:21,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:33:21,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:33:21,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21" (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 19:33:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:33:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:33:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 19:33:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 19:33:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:33:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:33:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 19:33:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 19:33:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 19:33:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:33:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:33:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:33:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:33:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:33:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:33:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:33:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:33:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:33:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:33:22,347 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:33:22,348 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-24 19:33:22,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:22 BoogieIcfgContainer [2020-09-24 19:33:22,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:33:22,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:33:22,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:33:22,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:33:22,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:33:21" (1/3) ... [2020-09-24 19:33:22,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c1017c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:22, skipping insertion in model container [2020-09-24 19:33:22,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:21" (2/3) ... [2020-09-24 19:33:22,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c1017c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:22, skipping insertion in model container [2020-09-24 19:33:22,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:22" (3/3) ... [2020-09-24 19:33:22,363 INFO L109 eAbstractionObserver]: Analyzing ICFG res2of.c [2020-09-24 19:33:22,375 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:33:22,385 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:33:22,406 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:33:22,439 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:33:22,439 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:33:22,439 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:33:22,440 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:33:22,440 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:33:22,440 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:33:22,440 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:33:22,440 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:33:22,478 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-09-24 19:33:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 19:33:22,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:22,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:22,495 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:22,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:22,504 INFO L82 PathProgramCache]: Analyzing trace with hash -386797637, now seen corresponding path program 1 times [2020-09-24 19:33:22,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:22,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476426897] [2020-09-24 19:33:22,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:22,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:22,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:22,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:23,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 19:33:23,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:33:23,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:33:23,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:23,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-24 19:33:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:33:23,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:23,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:23,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:33:23,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:23,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:33:23,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:23,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:23,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:23,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:23,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-24 19:33:23,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 19:33:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:23,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:23,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:23,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:33:23,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:23,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:23,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:23,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:23,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:23,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:33:23,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476426897] [2020-09-24 19:33:23,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:23,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:33:23,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145662060] [2020-09-24 19:33:23,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:33:23,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:23,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:33:23,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:33:23,961 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 3 states. [2020-09-24 19:33:24,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:24,230 INFO L93 Difference]: Finished difference Result 167 states and 194 transitions. [2020-09-24 19:33:24,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:33:24,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-09-24 19:33:24,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:24,253 INFO L225 Difference]: With dead ends: 167 [2020-09-24 19:33:24,254 INFO L226 Difference]: Without dead ends: 80 [2020-09-24 19:33:24,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:33:24,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-24 19:33:24,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-24 19:33:24,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-24 19:33:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2020-09-24 19:33:24,355 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 43 [2020-09-24 19:33:24,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:24,357 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2020-09-24 19:33:24,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:33:24,357 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2020-09-24 19:33:24,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 19:33:24,364 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:24,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:24,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:33:24,366 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:24,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:24,367 INFO L82 PathProgramCache]: Analyzing trace with hash 614001090, now seen corresponding path program 1 times [2020-09-24 19:33:24,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:24,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844365366] [2020-09-24 19:33:24,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:24,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:24,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:24,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:24,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:24,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:25,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:25,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:25,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 19:33:25,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 19:33:25,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-24 19:33:25,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:25,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:33:25,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 19:33:25,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 19:33:25,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-24 19:33:25,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:25,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:25,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:25,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:33:25,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:25,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:33:25,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:25,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:25,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:25,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:25,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 19:33:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:25,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:25,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:25,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:25,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 19:33:25,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:33:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:33:25,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:33:25,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:33:25,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844365366] [2020-09-24 19:33:25,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:25,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:33:25,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371404856] [2020-09-24 19:33:25,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:33:25,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:25,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:33:25,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:33:25,614 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand 5 states. [2020-09-24 19:33:26,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:26,007 INFO L93 Difference]: Finished difference Result 134 states and 149 transitions. [2020-09-24 19:33:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:33:26,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2020-09-24 19:33:26,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:26,010 INFO L225 Difference]: With dead ends: 134 [2020-09-24 19:33:26,010 INFO L226 Difference]: Without dead ends: 86 [2020-09-24 19:33:26,012 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 [2020-09-24 19:33:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-24 19:33:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-09-24 19:33:26,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-24 19:33:26,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2020-09-24 19:33:26,025 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 43 [2020-09-24 19:33:26,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:26,026 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2020-09-24 19:33:26,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:33:26,026 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2020-09-24 19:33:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 19:33:26,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:26,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:33:26,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:33:26,030 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:26,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:26,030 INFO L82 PathProgramCache]: Analyzing trace with hash -849907375, now seen corresponding path program 1 times [2020-09-24 19:33:26,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:26,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687402457] [2020-09-24 19:33:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:33:26,093 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:33:26,094 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:33:26,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:33:26,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:33:26 BoogieIcfgContainer [2020-09-24 19:33:26,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:33:26,134 INFO L168 Benchmark]: Toolchain (without parser) took 4882.49 ms. Allocated memory was 137.9 MB in the beginning and 250.1 MB in the end (delta: 112.2 MB). Free memory was 101.0 MB in the beginning and 192.4 MB in the end (delta: -91.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:26,135 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 19:33:26,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.56 ms. Allocated memory is still 137.9 MB. Free memory was 100.3 MB in the beginning and 89.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:26,138 INFO L168 Benchmark]: Boogie Preprocessor took 177.97 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 89.4 MB in the beginning and 177.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:26,139 INFO L168 Benchmark]: RCFGBuilder took 547.78 ms. Allocated memory is still 199.8 MB. Free memory was 177.0 MB in the beginning and 152.2 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:26,140 INFO L168 Benchmark]: TraceAbstraction took 3775.29 ms. Allocated memory was 199.8 MB in the beginning and 250.1 MB in the end (delta: 50.3 MB). Free memory was 152.2 MB in the beginning and 192.4 MB in the end (delta: -40.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:26,144 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 371.56 ms. Allocated memory is still 137.9 MB. Free memory was 100.3 MB in the beginning and 89.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 177.97 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 89.4 MB in the beginning and 177.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 547.78 ms. Allocated memory is still 199.8 MB. Free memory was 177.0 MB in the beginning and 152.2 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3775.29 ms. Allocated memory was 199.8 MB in the beginning and 250.1 MB in the end (delta: 50.3 MB). Free memory was 152.2 MB in the beginning and 192.4 MB in the end (delta: -40.2 MB). Peak memory consumption was 10.1 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); [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