/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/s42iff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:49:34,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:49:34,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:49:34,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:49:34,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:49:34,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:49:34,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:49:34,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:49:34,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:49:34,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:49:34,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:49:34,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:49:34,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:49:34,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:49:34,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:49:34,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:49:34,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:49:34,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:49:34,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:49:34,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:49:34,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:49:34,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:49:34,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:49:34,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:49:34,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:49:34,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:49:34,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:49:34,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:49:34,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:49:34,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:49:34,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:49:34,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:49:34,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:49:34,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:49:34,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:49:34,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:49:34,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:49:34,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:49:34,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:49:34,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:49:34,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:49:34,411 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 21:49:34,439 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:49:34,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:49:34,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:49:34,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:49:34,441 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:49:34,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:49:34,441 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:49:34,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:49:34,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:49:34,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:49:34,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:49:34,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:49:34,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:49:34,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:49:34,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:49:34,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:49:34,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:49:34,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:49:34,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:49:34,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:49:34,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:49:34,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:34,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:49:34,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:49:34,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:49:34,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:49:34,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:49:34,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:49:34,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:49:34,446 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 21:49:34,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:49:34,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:49:34,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:49:34,961 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:49:34,964 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:49:34,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s42iff.c [2020-09-24 21:49:35,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57684cfc6/705a30dac1bb4f289a2b2cd037ad8557/FLAGde17e8cec [2020-09-24 21:49:35,656 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:49:35,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s42iff.c [2020-09-24 21:49:35,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57684cfc6/705a30dac1bb4f289a2b2cd037ad8557/FLAGde17e8cec [2020-09-24 21:49:36,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57684cfc6/705a30dac1bb4f289a2b2cd037ad8557 [2020-09-24 21:49:36,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:49:36,062 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:49:36,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:36,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:49:36,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:49:36,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:36" (1/1) ... [2020-09-24 21:49:36,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e1c24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36, skipping insertion in model container [2020-09-24 21:49:36,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:36" (1/1) ... [2020-09-24 21:49:36,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:49:36,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:49:36,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:36,398 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:49:36,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:36,444 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:49:36,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36 WrapperNode [2020-09-24 21:49:36,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:36,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:49:36,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:49:36,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:49:36,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36" (1/1) ... [2020-09-24 21:49:36,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36" (1/1) ... [2020-09-24 21:49:36,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36" (1/1) ... [2020-09-24 21:49:36,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36" (1/1) ... [2020-09-24 21:49:36,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36" (1/1) ... [2020-09-24 21:49:36,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36" (1/1) ... [2020-09-24 21:49:36,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36" (1/1) ... [2020-09-24 21:49:36,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:49:36,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:49:36,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:49:36,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:49:36,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36" (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 21:49:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:49:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:49:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:49:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:49:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:49:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:49:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:49:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:49:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:49:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:49:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:49:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:49:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:49:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:49:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:49:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:49:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:49:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:49:36,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:49:37,052 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:49:37,053 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-24 21:49:37,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:37 BoogieIcfgContainer [2020-09-24 21:49:37,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:49:37,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:49:37,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:49:37,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:49:37,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:49:36" (1/3) ... [2020-09-24 21:49:37,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e461368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:37, skipping insertion in model container [2020-09-24 21:49:37,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:36" (2/3) ... [2020-09-24 21:49:37,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e461368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:37, skipping insertion in model container [2020-09-24 21:49:37,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:37" (3/3) ... [2020-09-24 21:49:37,070 INFO L109 eAbstractionObserver]: Analyzing ICFG s42iff.c [2020-09-24 21:49:37,084 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:49:37,095 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:49:37,118 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:49:37,147 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:49:37,147 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:49:37,148 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:49:37,148 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:49:37,148 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:49:37,148 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:49:37,148 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:49:37,148 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:49:37,172 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-09-24 21:49:37,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 21:49:37,181 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:37,182 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] [2020-09-24 21:49:37,182 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:37,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:37,189 INFO L82 PathProgramCache]: Analyzing trace with hash 350973390, now seen corresponding path program 1 times [2020-09-24 21:49:37,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:37,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138555361] [2020-09-24 21:49:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:37,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:37,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:37,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:37,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:37,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:49:37,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:49:37,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-24 21:49:37,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:37,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:37,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 21:49:37,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:37,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:49:37,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:37,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:37,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:37,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:37,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:37,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:49:37,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:37,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:37,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:37,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:37,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:37,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:37,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:37,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:37,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:37,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:37,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:49:37,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:37,893 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 21:49:37,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138555361] [2020-09-24 21:49:37,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:37,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:49:37,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451409255] [2020-09-24 21:49:37,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:49:37,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:37,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:49:37,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:49:37,926 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2020-09-24 21:49:38,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:38,127 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2020-09-24 21:49:38,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:49:38,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-09-24 21:49:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:38,142 INFO L225 Difference]: With dead ends: 143 [2020-09-24 21:49:38,142 INFO L226 Difference]: Without dead ends: 68 [2020-09-24 21:49:38,147 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 21:49:38,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-24 21:49:38,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-24 21:49:38,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-24 21:49:38,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-09-24 21:49:38,204 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 33 [2020-09-24 21:49:38,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:38,205 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-09-24 21:49:38,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:49:38,205 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-09-24 21:49:38,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 21:49:38,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:38,207 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] [2020-09-24 21:49:38,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:49:38,208 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:38,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:38,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1688115303, now seen corresponding path program 1 times [2020-09-24 21:49:38,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:38,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196463281] [2020-09-24 21:49:38,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:38,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:38,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:38,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:38,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:38,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:49:38,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:49:38,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-09-24 21:49:38,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:38,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:49:38,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:49:38,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:49:38,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:38,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:38,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:38,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:38,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:38,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:38,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:49:38,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:38,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:38,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:38,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:38,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:38,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:38,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:39,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:39,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:39,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:39,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:49:39,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:49:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:39,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:49:39,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:49:39,013 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 21:49:39,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196463281] [2020-09-24 21:49:39,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:39,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:49:39,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758987763] [2020-09-24 21:49:39,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:49:39,018 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:39,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:49:39,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:49:39,018 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 5 states. [2020-09-24 21:49:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:39,241 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2020-09-24 21:49:39,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:49:39,242 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-09-24 21:49:39,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:39,245 INFO L225 Difference]: With dead ends: 111 [2020-09-24 21:49:39,245 INFO L226 Difference]: Without dead ends: 71 [2020-09-24 21:49:39,246 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 21:49:39,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-24 21:49:39,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-24 21:49:39,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-24 21:49:39,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-09-24 21:49:39,272 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 33 [2020-09-24 21:49:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:39,273 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-09-24 21:49:39,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:49:39,273 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-09-24 21:49:39,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 21:49:39,276 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:39,276 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] [2020-09-24 21:49:39,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:49:39,277 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:39,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:39,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1790069826, now seen corresponding path program 1 times [2020-09-24 21:49:39,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:39,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185185249] [2020-09-24 21:49:39,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:49:39,321 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:49:39,321 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:49:39,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:49:39,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:49:39 BoogieIcfgContainer [2020-09-24 21:49:39,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:49:39,372 INFO L168 Benchmark]: Toolchain (without parser) took 3311.37 ms. Allocated memory was 140.0 MB in the beginning and 235.4 MB in the end (delta: 95.4 MB). Free memory was 103.0 MB in the beginning and 135.4 MB in the end (delta: -32.4 MB). Peak memory consumption was 63.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:39,374 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 21:49:39,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.55 ms. Allocated memory is still 140.0 MB. Free memory was 102.4 MB in the beginning and 91.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:39,376 INFO L168 Benchmark]: Boogie Preprocessor took 136.57 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 179.0 MB in the end (delta: -87.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:39,378 INFO L168 Benchmark]: RCFGBuilder took 476.70 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 157.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:39,380 INFO L168 Benchmark]: TraceAbstraction took 2304.10 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 157.1 MB in the beginning and 135.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:39,391 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 377.55 ms. Allocated memory is still 140.0 MB. Free memory was 102.4 MB in the beginning and 91.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.57 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 179.0 MB in the end (delta: -87.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 476.70 ms. Allocated memory is still 201.9 MB. Free memory was 179.0 MB in the beginning and 157.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2304.10 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 157.1 MB in the beginning and 135.4 MB in the end (delta: 21.6 MB). Peak memory consumption was 55.2 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); [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i