/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=LOWLEXORDER --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/res1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:49:22,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:49:22,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:49:22,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:49:22,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:49:22,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:49:22,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:49:22,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:49:22,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:49:22,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:49:23,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:49:23,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:49:23,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:49:23,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:49:23,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:49:23,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:49:23,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:49:23,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:49:23,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:49:23,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:49:23,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:49:23,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:49:23,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:49:23,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:49:23,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:49:23,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:49:23,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:49:23,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:49:23,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:49:23,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:49:23,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:49:23,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:49:23,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:49:23,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:49:23,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:49:23,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:49:23,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:49:23,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:49:23,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:49:23,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:49:23,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:49:23,028 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 21:49:23,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:49:23,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:49:23,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:49:23,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:49:23,057 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:49:23,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:49:23,057 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:49:23,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:49:23,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:49:23,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:49:23,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:49:23,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:49:23,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:49:23,059 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:49:23,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:49:23,059 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:49:23,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:49:23,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:49:23,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:49:23,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:49:23,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:49:23,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:23,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:49:23,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:49:23,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:49:23,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:49:23,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:49:23,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:49:23,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:49:23,062 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:49:23,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:49:23,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:49:23,585 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:49:23,587 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:49:23,587 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:49:23,588 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res1f.c [2020-09-24 21:49:23,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d2cf156a/928f69997ad74a31974bbd15a5e5fc75/FLAGa269b451e [2020-09-24 21:49:24,171 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:49:24,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res1f.c [2020-09-24 21:49:24,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d2cf156a/928f69997ad74a31974bbd15a5e5fc75/FLAGa269b451e [2020-09-24 21:49:24,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d2cf156a/928f69997ad74a31974bbd15a5e5fc75 [2020-09-24 21:49:24,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:49:24,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:49:24,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:24,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:49:24,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:49:24,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:24" (1/1) ... [2020-09-24 21:49:24,529 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 09:49:24, skipping insertion in model container [2020-09-24 21:49:24,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:24" (1/1) ... [2020-09-24 21:49:24,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:49:24,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:49:24,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:24,874 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:49:24,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:25,008 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:49:25,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25 WrapperNode [2020-09-24 21:49:25,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:25,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:49:25,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:49:25,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:49:25,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:25,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:25,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:25,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:25,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:25,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:25,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... [2020-09-24 21:49:25,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:49:25,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:49:25,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:49:25,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:49:25,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:49:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:49:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:49:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:49:25,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:49:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:49:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:49:25,150 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:49:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:49:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:49:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:49:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:49:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:49:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:49:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:49:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:49:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:49:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:49:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:49:25,503 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:49:25,504 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 21:49:25,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:25 BoogieIcfgContainer [2020-09-24 21:49:25,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:49:25,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:49:25,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:49:25,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:49:25,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:49:24" (1/3) ... [2020-09-24 21:49:25,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a82e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:25, skipping insertion in model container [2020-09-24 21:49:25,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:25" (2/3) ... [2020-09-24 21:49:25,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a82e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:25, skipping insertion in model container [2020-09-24 21:49:25,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:25" (3/3) ... [2020-09-24 21:49:25,520 INFO L109 eAbstractionObserver]: Analyzing ICFG res1f.c [2020-09-24 21:49:25,532 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:49:25,542 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:49:25,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:49:25,601 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:49:25,601 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:49:25,602 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:49:25,602 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:49:25,602 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:49:25,602 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:49:25,602 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:49:25,602 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:49:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-24 21:49:25,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 21:49:25,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:25,638 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 21:49:25,638 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:25,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:25,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1226656927, now seen corresponding path program 1 times [2020-09-24 21:49:25,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:25,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54042954] [2020-09-24 21:49:25,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:25,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:25,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:25,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:26,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:26,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:27,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:27,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 21:49:27,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:49:27,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1418 [2020-09-24 21:49:27,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:27,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:49:27,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:49:27,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 21:49:27,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:49:27,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:27,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:27,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:27,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:27,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:27,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:49:27,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:27,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:27,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:27,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:27,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:27,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:27,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:27,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:49:27,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:49:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:27,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:49:27,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:49:27,511 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 21:49:27,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54042954] [2020-09-24 21:49:27,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:27,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:49:27,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029067750] [2020-09-24 21:49:27,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:49:27,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:27,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:49:27,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:49:27,545 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 8 states. [2020-09-24 21:49:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:28,041 INFO L93 Difference]: Finished difference Result 154 states and 178 transitions. [2020-09-24 21:49:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 21:49:28,043 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2020-09-24 21:49:28,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:28,056 INFO L225 Difference]: With dead ends: 154 [2020-09-24 21:49:28,056 INFO L226 Difference]: Without dead ends: 71 [2020-09-24 21:49:28,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:49:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-24 21:49:28,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2020-09-24 21:49:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-24 21:49:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-09-24 21:49:28,125 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 37 [2020-09-24 21:49:28,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:28,126 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-09-24 21:49:28,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:49:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-09-24 21:49:28,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-24 21:49:28,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:28,129 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] [2020-09-24 21:49:28,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:49:28,130 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:28,130 INFO L82 PathProgramCache]: Analyzing trace with hash 138375278, now seen corresponding path program 1 times [2020-09-24 21:49:28,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:28,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467527309] [2020-09-24 21:49:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:28,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:28,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:28,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:28,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:28,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:29,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 21:49:29,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:49:29,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1390 [2020-09-24 21:49:29,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:29,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:49:29,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:49:29,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 21:49:29,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:29,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:29,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:29,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:29,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:29,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:49:29,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:29,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:49:29,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:29,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:29,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:29,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:29,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:49:29,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:29,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:49:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:29,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:49:29,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 21:49:29,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1467527309] [2020-09-24 21:49:29,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:29,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:49:29,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301103839] [2020-09-24 21:49:29,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:49:29,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:29,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:49:29,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:49:29,628 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 5 states. [2020-09-24 21:49:29,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:29,833 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2020-09-24 21:49:29,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:49:29,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-09-24 21:49:29,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:29,846 INFO L225 Difference]: With dead ends: 101 [2020-09-24 21:49:29,846 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 21:49:29,847 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 21:49:29,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 21:49:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 21:49:29,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 21:49:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2020-09-24 21:49:29,859 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 46 [2020-09-24 21:49:29,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:29,860 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2020-09-24 21:49:29,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:49:29,860 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2020-09-24 21:49:29,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 21:49:29,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:29,862 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 21:49:29,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:49:29,863 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:29,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:29,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1623654441, now seen corresponding path program 1 times [2020-09-24 21:49:29,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:29,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406648705] [2020-09-24 21:49:29,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:49:29,900 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:49:29,900 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:49:29,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:49:29,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:49:29 BoogieIcfgContainer [2020-09-24 21:49:29,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:49:29,935 INFO L168 Benchmark]: Toolchain (without parser) took 5420.50 ms. Allocated memory was 139.5 MB in the beginning and 245.9 MB in the end (delta: 106.4 MB). Free memory was 102.6 MB in the beginning and 213.4 MB in the end (delta: -110.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:49:29,936 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:49:29,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.41 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 181.3 MB in the end (delta: -79.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:29,938 INFO L168 Benchmark]: Boogie Preprocessor took 48.38 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 179.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:29,939 INFO L168 Benchmark]: RCFGBuilder took 452.27 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 157.8 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:29,940 INFO L168 Benchmark]: TraceAbstraction took 4420.03 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 157.2 MB in the beginning and 213.4 MB in the end (delta: -56.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:49:29,944 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 490.41 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 181.3 MB in the end (delta: -79.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.38 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 179.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 452.27 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 157.8 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4420.03 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 157.2 MB in the beginning and 213.4 MB in the end (delta: -56.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L28] int *b = malloc(sizeof(int)*N); [L30] sum[0] = 1 [L31] i=0 [L31] COND TRUE i