/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/res1of.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:33:18,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:33:18,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:33:18,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:33:18,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:33:18,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:33:18,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:33:18,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:33:18,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:33:18,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:33:18,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:33:18,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:33:18,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:33:18,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:33:18,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:33:18,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:33:18,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:33:18,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:33:18,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:33:18,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:33:18,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:33:18,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:33:18,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:33:18,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:33:18,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:33:18,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:33:18,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:33:18,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:33:18,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:33:18,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:33:18,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:33:18,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:33:18,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:33:18,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:33:18,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:33:18,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:33:18,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:33:18,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:33:18,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:33:18,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:33:18,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:33:18,700 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 19:33:18,748 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:33:18,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:33:18,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:33:18,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:33:18,750 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:33:18,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:33:18,751 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:33:18,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:33:18,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:33:18,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:33:18,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:33:18,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:33:18,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:33:18,752 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:33:18,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:33:18,753 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:33:18,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:33:18,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:33:18,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:33:18,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:33:18,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:33:18,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:33:18,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:33:18,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:33:18,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:33:18,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:33:18,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:33:18,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:33:18,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:33:18,755 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 19:33:19,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:33:19,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:33:19,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:33:19,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:33:19,275 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:33:19,276 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res1of.c [2020-09-24 19:33:19,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0f5fce2c/25825648296347de86b09e5994c39a34/FLAGb863eb4e5 [2020-09-24 19:33:19,897 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:33:19,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res1of.c [2020-09-24 19:33:19,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0f5fce2c/25825648296347de86b09e5994c39a34/FLAGb863eb4e5 [2020-09-24 19:33:20,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b0f5fce2c/25825648296347de86b09e5994c39a34 [2020-09-24 19:33:20,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:33:20,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:33:20,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:20,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:33:20,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:33:20,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:20" (1/1) ... [2020-09-24 19:33:20,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3330734f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20, skipping insertion in model container [2020-09-24 19:33:20,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:20" (1/1) ... [2020-09-24 19:33:20,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:33:20,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:33:20,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:20,546 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:33:20,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:20,586 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:33:20,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20 WrapperNode [2020-09-24 19:33:20,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:20,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:33:20,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:33:20,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:33:20,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20" (1/1) ... [2020-09-24 19:33:20,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20" (1/1) ... [2020-09-24 19:33:20,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20" (1/1) ... [2020-09-24 19:33:20,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20" (1/1) ... [2020-09-24 19:33:20,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20" (1/1) ... [2020-09-24 19:33:20,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20" (1/1) ... [2020-09-24 19:33:20,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20" (1/1) ... [2020-09-24 19:33:20,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:33:20,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:33:20,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:33:20,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:33:20,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20" (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 19:33:20,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:33:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:33:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 19:33:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 19:33:20,796 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:33:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:33:20,796 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 19:33:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 19:33:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 19:33:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:33:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:33:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:33:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:33:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:33:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:33:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:33:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:33:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:33:20,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:33:21,119 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:33:21,120 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 19:33:21,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:21 BoogieIcfgContainer [2020-09-24 19:33:21,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:33:21,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:33:21,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:33:21,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:33:21,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:33:20" (1/3) ... [2020-09-24 19:33:21,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20aa07f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:21, skipping insertion in model container [2020-09-24 19:33:21,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:20" (2/3) ... [2020-09-24 19:33:21,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20aa07f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:21, skipping insertion in model container [2020-09-24 19:33:21,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:21" (3/3) ... [2020-09-24 19:33:21,135 INFO L109 eAbstractionObserver]: Analyzing ICFG res1of.c [2020-09-24 19:33:21,149 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:33:21,159 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:33:21,182 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:33:21,216 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:33:21,217 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:33:21,217 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:33:21,217 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:33:21,217 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:33:21,217 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:33:21,218 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:33:21,218 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:33:21,245 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-24 19:33:21,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 19:33:21,255 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:21,256 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] [2020-09-24 19:33:21,257 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:21,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:21,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1485233439, now seen corresponding path program 1 times [2020-09-24 19:33:21,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:21,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049924871] [2020-09-24 19:33:21,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:21,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:21,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:21,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:21,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:22,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:22,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:22,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 19:33:22,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:33:22,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:33:22,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:22,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:22,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:33:22,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:22,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:33:22,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:22,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:22,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:22,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:33:22,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:22,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:33:22,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:22,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:22,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:33:22,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 19:33:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:22,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:22,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:22,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:22,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:22,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:33:22,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:22,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:22,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:22,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:22,612 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 19:33:22,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049924871] [2020-09-24 19:33:22,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:22,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:33:22,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139615528] [2020-09-24 19:33:22,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:33:22,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:22,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:33:22,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:33:22,649 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-09-24 19:33:22,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:22,869 INFO L93 Difference]: Finished difference Result 131 states and 150 transitions. [2020-09-24 19:33:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:33:22,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-09-24 19:33:22,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:22,890 INFO L225 Difference]: With dead ends: 131 [2020-09-24 19:33:22,890 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 19:33:22,896 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 19:33:22,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 19:33:22,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-24 19:33:22,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 19:33:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2020-09-24 19:33:22,947 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 37 [2020-09-24 19:33:22,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:22,947 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2020-09-24 19:33:22,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:33:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2020-09-24 19:33:22,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 19:33:22,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:22,950 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] [2020-09-24 19:33:22,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:33:22,950 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:22,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:22,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1275810423, now seen corresponding path program 1 times [2020-09-24 19:33:22,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:22,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805546853] [2020-09-24 19:33:22,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:22,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:23,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:23,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 19:33:23,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 19:33:23,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-24 19:33:23,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:33:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 19:33:23,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 19:33:23,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 19:33:24,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:24,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:24,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:24,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:33:24,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:24,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:33:24,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:24,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:24,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:24,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:24,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:24,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 19:33:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:24,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:24,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:24,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:24,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:24,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:33:24,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:33:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:33:24,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:24,099 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 19:33:24,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805546853] [2020-09-24 19:33:24,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:24,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:33:24,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799204217] [2020-09-24 19:33:24,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:33:24,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:24,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:33:24,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:33:24,106 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 5 states. [2020-09-24 19:33:24,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:24,336 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2020-09-24 19:33:24,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:33:24,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-09-24 19:33:24,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:24,338 INFO L225 Difference]: With dead ends: 98 [2020-09-24 19:33:24,338 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 19:33:24,340 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 19:33:24,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 19:33:24,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 19:33:24,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 19:33:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2020-09-24 19:33:24,351 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 37 [2020-09-24 19:33:24,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:24,352 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2020-09-24 19:33:24,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:33:24,352 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2020-09-24 19:33:24,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 19:33:24,354 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:24,355 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] [2020-09-24 19:33:24,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:33:24,355 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:24,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:24,356 INFO L82 PathProgramCache]: Analyzing trace with hash 499886001, now seen corresponding path program 1 times [2020-09-24 19:33:24,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:24,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410483220] [2020-09-24 19:33:24,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:33:24,400 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:33:24,402 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:33:24,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:33:24,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:33:24 BoogieIcfgContainer [2020-09-24 19:33:24,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:33:24,449 INFO L168 Benchmark]: Toolchain (without parser) took 4189.23 ms. Allocated memory was 140.5 MB in the beginning and 244.8 MB in the end (delta: 104.3 MB). Free memory was 102.8 MB in the beginning and 175.8 MB in the end (delta: -73.0 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:24,451 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:33:24,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.72 ms. Allocated memory is still 140.5 MB. Free memory was 102.1 MB in the beginning and 91.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:24,453 INFO L168 Benchmark]: Boogie Preprocessor took 127.06 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 179.8 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:24,454 INFO L168 Benchmark]: RCFGBuilder took 410.29 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 158.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:24,456 INFO L168 Benchmark]: TraceAbstraction took 3317.37 ms. Allocated memory was 202.4 MB in the beginning and 244.8 MB in the end (delta: 42.5 MB). Free memory was 158.0 MB in the beginning and 175.8 MB in the end (delta: -17.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:24,466 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 321.72 ms. Allocated memory is still 140.5 MB. Free memory was 102.1 MB in the beginning and 91.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.06 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 179.8 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.29 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 158.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3317.37 ms. Allocated memory was 202.4 MB in the beginning and 244.8 MB in the end (delta: 42.5 MB). Free memory was 158.0 MB in the beginning and 175.8 MB in the end (delta: -17.9 MB). Peak memory consumption was 24.6 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); [L30] sum[0] = 0 [L31] i=0 [L31] COND TRUE i