/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/s22iff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:49:25,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:49:25,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:49:26,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:49:26,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:49:26,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:49:26,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:49:26,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:49:26,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:49:26,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:49:26,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:49:26,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:49:26,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:49:26,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:49:26,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:49:26,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:49:26,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:49:26,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:49:26,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:49:26,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:49:26,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:49:26,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:49:26,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:49:26,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:49:26,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:49:26,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:49:26,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:49:26,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:49:26,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:49:26,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:49:26,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:49:26,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:49:26,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:49:26,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:49:26,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:49:26,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:49:26,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:49:26,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:49:26,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:49:26,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:49:26,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:49:26,117 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 21:49:26,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:49:26,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:49:26,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:49:26,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:49:26,168 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:49:26,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:49:26,169 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:49:26,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:49:26,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:49:26,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:49:26,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:49:26,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:49:26,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:49:26,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:49:26,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:49:26,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:49:26,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:49:26,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:49:26,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:49:26,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:49:26,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:49:26,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:49:26,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:49:26,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:49:26,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:49:26,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:49:26,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:49:26,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:49:26,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:49:26,174 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 21:49:26,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:49:26,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:49:26,667 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:49:26,669 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:49:26,670 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:49:26,671 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s22iff.c [2020-09-24 21:49:26,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62f56d44f/75a339341465420aae8c27d35df257b9/FLAG4b2422bf8 [2020-09-24 21:49:27,264 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:49:27,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s22iff.c [2020-09-24 21:49:27,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62f56d44f/75a339341465420aae8c27d35df257b9/FLAG4b2422bf8 [2020-09-24 21:49:27,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62f56d44f/75a339341465420aae8c27d35df257b9 [2020-09-24 21:49:27,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:49:27,635 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:49:27,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:27,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:49:27,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:49:27,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:27" (1/1) ... [2020-09-24 21:49:27,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb7919e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:27, skipping insertion in model container [2020-09-24 21:49:27,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:49:27" (1/1) ... [2020-09-24 21:49:27,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:49:27,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:49:27,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:27,940 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:49:27,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:49:28,077 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:49:28,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28 WrapperNode [2020-09-24 21:49:28,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:49:28,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:49:28,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:49:28,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:49:28,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28" (1/1) ... [2020-09-24 21:49:28,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28" (1/1) ... [2020-09-24 21:49:28,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28" (1/1) ... [2020-09-24 21:49:28,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28" (1/1) ... [2020-09-24 21:49:28,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28" (1/1) ... [2020-09-24 21:49:28,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28" (1/1) ... [2020-09-24 21:49:28,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28" (1/1) ... [2020-09-24 21:49:28,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:49:28,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:49:28,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:49:28,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:49:28,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28" (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 21:49:28,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:49:28,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:49:28,227 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:49:28,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:49:28,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:49:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:49:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:49:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:49:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:49:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:49:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:49:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:49:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:49:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:49:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:49:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:49:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:49:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:49:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:49:28,615 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:49:28,615 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-24 21:49:28,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:28 BoogieIcfgContainer [2020-09-24 21:49:28,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:49:28,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:49:28,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:49:28,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:49:28,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:49:27" (1/3) ... [2020-09-24 21:49:28,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a59b01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:28, skipping insertion in model container [2020-09-24 21:49:28,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:49:28" (2/3) ... [2020-09-24 21:49:28,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a59b01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:49:28, skipping insertion in model container [2020-09-24 21:49:28,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:49:28" (3/3) ... [2020-09-24 21:49:28,633 INFO L109 eAbstractionObserver]: Analyzing ICFG s22iff.c [2020-09-24 21:49:28,647 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:49:28,658 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:49:28,681 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:49:28,717 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:49:28,717 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:49:28,717 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:49:28,718 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:49:28,718 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:49:28,718 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:49:28,718 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:49:28,718 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:49:28,749 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-09-24 21:49:28,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 21:49:28,758 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:28,760 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 21:49:28,760 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:28,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:28,767 INFO L82 PathProgramCache]: Analyzing trace with hash 350973390, now seen corresponding path program 1 times [2020-09-24 21:49:28,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:28,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898439985] [2020-09-24 21:49:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:28,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:29,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:49:29,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:49:29,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-09-24 21:49:29,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:29,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:29,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 21:49:29,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:29,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:49:29,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:29,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:29,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:29,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:49:29,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:29,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:29,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:29,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:29,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:29,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:29,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:29,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:49:29,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:29,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:29,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:29,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:29,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:49:29,443 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 21:49:29,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898439985] [2020-09-24 21:49:29,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:29,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 21:49:29,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500186881] [2020-09-24 21:49:29,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 21:49:29,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:29,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 21:49:29,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 21:49:29,482 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2020-09-24 21:49:29,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:29,690 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2020-09-24 21:49:29,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 21:49:29,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-09-24 21:49:29,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:29,706 INFO L225 Difference]: With dead ends: 143 [2020-09-24 21:49:29,706 INFO L226 Difference]: Without dead ends: 68 [2020-09-24 21:49:29,711 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 21:49:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-24 21:49:29,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-24 21:49:29,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-24 21:49:29,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-09-24 21:49:29,773 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 33 [2020-09-24 21:49:29,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:29,774 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-09-24 21:49:29,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 21:49:29,774 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-09-24 21:49:29,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 21:49:29,776 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:29,776 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 21:49:29,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:49:29,777 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:29,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:29,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1688115303, now seen corresponding path program 1 times [2020-09-24 21:49:29,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:29,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294962733] [2020-09-24 21:49:29,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:29,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:29,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:30,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:30,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:49:30,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:49:30,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 625 [2020-09-24 21:49:30,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:49:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:49:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:49:30,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:49:30,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:49:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:30,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:30,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:30,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:49:30,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:30,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:49:30,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:49:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:30,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:49:30,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:49:30,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 21:49:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:49:30,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:49:30,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:49:30,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:49:30,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:49:30,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:49:30,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:49:30,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:49:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:49:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:49:30,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:49:30,522 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 21:49:30,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294962733] [2020-09-24 21:49:30,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:49:30,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:49:30,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566851942] [2020-09-24 21:49:30,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:49:30,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:49:30,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:49:30,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:49:30,527 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 5 states. [2020-09-24 21:49:30,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:49:30,731 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2020-09-24 21:49:30,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 21:49:30,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-09-24 21:49:30,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:49:30,734 INFO L225 Difference]: With dead ends: 111 [2020-09-24 21:49:30,734 INFO L226 Difference]: Without dead ends: 71 [2020-09-24 21:49:30,736 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 21:49:30,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-24 21:49:30,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-09-24 21:49:30,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-24 21:49:30,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2020-09-24 21:49:30,753 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 33 [2020-09-24 21:49:30,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:49:30,754 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2020-09-24 21:49:30,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:49:30,754 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2020-09-24 21:49:30,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-24 21:49:30,756 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:49:30,756 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 21:49:30,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:49:30,757 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:49:30,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:49:30,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1790069826, now seen corresponding path program 1 times [2020-09-24 21:49:30,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:49:30,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128987400] [2020-09-24 21:49:30,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:49:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 21:49:30,788 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 21:49:30,788 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 21:49:30,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:49:30,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:49:30 BoogieIcfgContainer [2020-09-24 21:49:30,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:49:30,820 INFO L168 Benchmark]: Toolchain (without parser) took 3187.40 ms. Allocated memory was 147.8 MB in the beginning and 233.3 MB in the end (delta: 85.5 MB). Free memory was 102.4 MB in the beginning and 129.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:30,821 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-24 21:49:30,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.79 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 101.7 MB in the beginning and 183.3 MB in the end (delta: -81.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:30,823 INFO L168 Benchmark]: Boogie Preprocessor took 59.06 ms. Allocated memory is still 204.5 MB. Free memory was 183.3 MB in the beginning and 181.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:30,824 INFO L168 Benchmark]: RCFGBuilder took 483.77 ms. Allocated memory is still 204.5 MB. Free memory was 181.1 MB in the beginning and 159.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:30,825 INFO L168 Benchmark]: TraceAbstraction took 2193.27 ms. Allocated memory was 204.5 MB in the beginning and 233.3 MB in the end (delta: 28.8 MB). Free memory was 158.9 MB in the beginning and 129.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:49:30,829 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 442.79 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 101.7 MB in the beginning and 183.3 MB in the end (delta: -81.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.06 ms. Allocated memory is still 204.5 MB. Free memory was 183.3 MB in the beginning and 181.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 483.77 ms. Allocated memory is still 204.5 MB. Free memory was 181.1 MB in the beginning and 159.5 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2193.27 ms. Allocated memory was 204.5 MB in the beginning and 233.3 MB in the end (delta: 28.8 MB). Free memory was 158.9 MB in the beginning and 129.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 58.2 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