/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=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/ms1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:28:38,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:28:38,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:28:38,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:28:38,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:28:38,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:28:38,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:28:38,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:28:38,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:28:38,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:28:38,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:28:38,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:28:38,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:28:38,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:28:38,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:28:38,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:28:38,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:28:38,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:28:38,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:28:38,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:28:38,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:28:38,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:28:38,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:28:38,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:28:38,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:28:38,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:28:38,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:28:38,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:28:38,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:28:38,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:28:38,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:28:38,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:28:38,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:28:38,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:28:38,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:28:38,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:28:38,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:28:38,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:28:38,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:28:38,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:28:38,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:28:38,687 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 18:28:38,714 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:28:38,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:28:38,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:28:38,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:28:38,719 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:28:38,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:28:38,719 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:28:38,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:28:38,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:28:38,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:28:38,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:28:38,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:28:38,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:28:38,722 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:28:38,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:28:38,723 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:28:38,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:28:38,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:28:38,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:28:38,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:28:38,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:28:38,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:28:38,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:28:38,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:28:38,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:28:38,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:28:38,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:28:38,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:28:38,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:28:38,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=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=5000;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=5000;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=5000;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=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:28:39,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:28:39,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:28:39,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:28:39,261 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:28:39,262 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:28:39,263 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms1f.c [2020-09-24 18:28:39,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f4cc191d/c238d8d0825747da95d9512045d40509/FLAGfaaa6953b [2020-09-24 18:28:39,917 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:28:39,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/ms1f.c [2020-09-24 18:28:39,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f4cc191d/c238d8d0825747da95d9512045d40509/FLAGfaaa6953b [2020-09-24 18:28:40,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f4cc191d/c238d8d0825747da95d9512045d40509 [2020-09-24 18:28:40,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:28:40,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:28:40,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:28:40,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:28:40,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:28:40,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:28:40" (1/1) ... [2020-09-24 18:28:40,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434f45a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40, skipping insertion in model container [2020-09-24 18:28:40,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:28:40" (1/1) ... [2020-09-24 18:28:40,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:28:40,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:28:40,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:28:40,558 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:28:40,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:28:40,598 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:28:40,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40 WrapperNode [2020-09-24 18:28:40,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:28:40,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:28:40,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:28:40,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:28:40,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40" (1/1) ... [2020-09-24 18:28:40,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40" (1/1) ... [2020-09-24 18:28:40,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40" (1/1) ... [2020-09-24 18:28:40,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40" (1/1) ... [2020-09-24 18:28:40,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40" (1/1) ... [2020-09-24 18:28:40,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40" (1/1) ... [2020-09-24 18:28:40,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40" (1/1) ... [2020-09-24 18:28:40,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:28:40,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:28:40,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:28:40,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:28:40,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40" (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 18:28:40,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:28:40,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:28:40,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:28:40,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 18:28:40,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:28:40,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:28:40,844 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:28:40,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:28:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:28:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:28:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:28:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:28:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:28:40,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:28:40,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:28:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:28:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:28:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:28:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:28:41,210 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:28:41,211 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-24 18:28:41,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:28:41 BoogieIcfgContainer [2020-09-24 18:28:41,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:28:41,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:28:41,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:28:41,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:28:41,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:28:40" (1/3) ... [2020-09-24 18:28:41,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57afa0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:28:41, skipping insertion in model container [2020-09-24 18:28:41,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:28:40" (2/3) ... [2020-09-24 18:28:41,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57afa0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:28:41, skipping insertion in model container [2020-09-24 18:28:41,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:28:41" (3/3) ... [2020-09-24 18:28:41,226 INFO L109 eAbstractionObserver]: Analyzing ICFG ms1f.c [2020-09-24 18:28:41,239 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:28:41,249 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:28:41,273 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:28:41,304 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:28:41,305 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:28:41,305 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:28:41,305 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:28:41,305 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:28:41,305 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:28:41,305 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:28:41,305 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:28:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-09-24 18:28:41,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 18:28:41,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:28:41,338 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] [2020-09-24 18:28:41,338 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:28:41,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:28:41,344 INFO L82 PathProgramCache]: Analyzing trace with hash -845632023, now seen corresponding path program 1 times [2020-09-24 18:28:41,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:28:41,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090556202] [2020-09-24 18:28:41,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:28:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:41,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:41,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:41,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:41,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 18:28:41,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:28:41,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 18:28:41,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:41,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 18:28:41,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:41,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 18:28:41,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:28:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:41,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:41,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:41,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:28:41,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:41,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 18:28:41,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:41,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:41,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:41,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:41,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:41,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 18:28:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:41,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:41,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:41,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:28:41,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:41,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:28:41,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:41,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:41,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:41,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:41,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:41,937 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 18:28:41,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090556202] [2020-09-24 18:28:41,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:28:41,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:28:41,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762640947] [2020-09-24 18:28:41,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:28:41,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:28:41,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:28:41,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:28:41,972 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 3 states. [2020-09-24 18:28:42,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:28:42,149 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2020-09-24 18:28:42,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:28:42,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-24 18:28:42,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:28:42,165 INFO L225 Difference]: With dead ends: 97 [2020-09-24 18:28:42,165 INFO L226 Difference]: Without dead ends: 45 [2020-09-24 18:28:42,170 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 18:28:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-24 18:28:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-24 18:28:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-24 18:28:42,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2020-09-24 18:28:42,229 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 30 [2020-09-24 18:28:42,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:28:42,230 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2020-09-24 18:28:42,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:28:42,230 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2020-09-24 18:28:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 18:28:42,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:28:42,232 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] [2020-09-24 18:28:42,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:28:42,233 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:28:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:28:42,233 INFO L82 PathProgramCache]: Analyzing trace with hash 104990277, now seen corresponding path program 1 times [2020-09-24 18:28:42,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:28:42,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097843212] [2020-09-24 18:28:42,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:28:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:42,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:42,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:42,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:42,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 18:28:42,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:28:42,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-09-24 18:28:42,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:42,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 18:28:42,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 18:28:42,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 18:28:42,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:28:42,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:28:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:42,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:42,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:42,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:28:42,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:42,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 18:28:42,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:42,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:28:42,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:42,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:28:42,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:42,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 18:28:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:28:42,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:28:42,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:28:42,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:28:42,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:28:42,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 18:28:42,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:28:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:28:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:28:42,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:28:42,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:28:42,838 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 18:28:42,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097843212] [2020-09-24 18:28:42,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:28:42,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:28:42,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432776071] [2020-09-24 18:28:42,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:28:42,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:28:42,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:28:42,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:28:42,842 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 5 states. [2020-09-24 18:28:42,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:28:42,999 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2020-09-24 18:28:43,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:28:43,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-24 18:28:43,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:28:43,002 INFO L225 Difference]: With dead ends: 65 [2020-09-24 18:28:43,002 INFO L226 Difference]: Without dead ends: 47 [2020-09-24 18:28:43,003 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 18:28:43,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-24 18:28:43,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-24 18:28:43,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-24 18:28:43,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-09-24 18:28:43,013 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 30 [2020-09-24 18:28:43,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:28:43,014 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-09-24 18:28:43,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:28:43,014 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-09-24 18:28:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-24 18:28:43,016 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:28:43,016 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] [2020-09-24 18:28:43,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:28:43,017 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:28:43,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:28:43,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1687643347, now seen corresponding path program 1 times [2020-09-24 18:28:43,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:28:43,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438521584] [2020-09-24 18:28:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:28:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:28:43,040 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:28:43,040 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:28:43,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:28:43,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:28:43 BoogieIcfgContainer [2020-09-24 18:28:43,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:28:43,072 INFO L168 Benchmark]: Toolchain (without parser) took 2799.19 ms. Allocated memory was 144.7 MB in the beginning and 229.6 MB in the end (delta: 84.9 MB). Free memory was 101.0 MB in the beginning and 174.4 MB in the end (delta: -73.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:43,073 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory was 119.3 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 18:28:43,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.97 ms. Allocated memory is still 144.7 MB. Free memory was 100.3 MB in the beginning and 89.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:43,075 INFO L168 Benchmark]: Boogie Preprocessor took 141.83 ms. Allocated memory was 144.7 MB in the beginning and 199.8 MB in the end (delta: 55.1 MB). Free memory was 89.9 MB in the beginning and 176.9 MB in the end (delta: -87.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:43,076 INFO L168 Benchmark]: RCFGBuilder took 474.58 ms. Allocated memory is still 199.8 MB. Free memory was 176.9 MB in the beginning and 159.2 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:43,077 INFO L168 Benchmark]: TraceAbstraction took 1850.20 ms. Allocated memory was 199.8 MB in the beginning and 229.6 MB in the end (delta: 29.9 MB). Free memory was 158.5 MB in the beginning and 174.4 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:28:43,081 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory was 119.3 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 321.97 ms. Allocated memory is still 144.7 MB. Free memory was 100.3 MB in the beginning and 89.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.83 ms. Allocated memory was 144.7 MB in the beginning and 199.8 MB in the end (delta: 55.1 MB). Free memory was 89.9 MB in the beginning and 176.9 MB in the end (delta: -87.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 474.58 ms. Allocated memory is still 199.8 MB. Free memory was 176.9 MB in the beginning and 159.2 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1850.20 ms. Allocated memory was 199.8 MB in the beginning and 229.6 MB in the end (delta: 29.9 MB). Free memory was 158.5 MB in the beginning and 174.4 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.0 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] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 [L29] COND TRUE i