/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ms1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:08:55,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:08:55,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:08:55,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:08:55,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:08:55,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:08:55,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:08:55,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:08:55,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:08:55,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:08:55,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:08:55,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:08:55,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:08:55,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:08:55,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:08:55,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:08:55,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:08:55,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:08:55,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:08:55,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:08:55,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:08:55,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:08:55,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:08:55,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:08:55,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:08:55,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:08:55,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:08:55,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:08:55,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:08:55,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:08:55,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:08:55,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:08:55,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:08:55,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:08:55,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:08:55,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:08:55,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:08:55,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:08:55,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:08:55,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:08:55,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:08:55,937 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 [2020-09-25 01:08:55,965 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:08:55,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:08:55,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:08:55,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:08:55,967 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:08:55,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:08:55,968 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:08:55,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:08:55,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:08:55,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:08:55,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:08:55,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:08:55,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:08:55,969 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:08:55,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:08:55,970 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:08:55,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:08:55,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:08:55,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:08:55,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:08:55,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:08:55,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:08:55,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:08:55,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:08:55,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:08:55,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:08:55,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:08:55,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:08:55,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:08:55,973 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 01:08:56,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:08:56,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:08:56,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:08:56,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:08:56,507 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:08:56,508 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms1f.c [2020-09-25 01:08:56,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8426036ff/f5e7f518c58f41d8846225a261543c62/FLAG3d9997a53 [2020-09-25 01:08:57,128 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:08:57,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/ms1f.c [2020-09-25 01:08:57,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8426036ff/f5e7f518c58f41d8846225a261543c62/FLAG3d9997a53 [2020-09-25 01:08:57,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8426036ff/f5e7f518c58f41d8846225a261543c62 [2020-09-25 01:08:57,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:08:57,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:08:57,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:08:57,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:08:57,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:08:57,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3add5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57, skipping insertion in model container [2020-09-25 01:08:57,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:08:57,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:08:57,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:08:57,827 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:08:57,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:08:57,875 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:08:57,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57 WrapperNode [2020-09-25 01:08:57,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:08:57,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:08:57,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:08:57,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:08:57,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:57,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:58,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:58,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (1/1) ... [2020-09-25 01:08:58,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:08:58,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:08:58,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:08:58,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:08:58,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (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 [2020-09-25 01:08:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:08:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:08:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 01:08:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 01:08:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:08:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:08:58,097 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 01:08:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 01:08:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 01:08:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:08:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:08:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:08:58,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:08:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:08:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:08:58,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:08:58,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:08:58,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:08:58,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:08:58,420 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:08:58,421 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 01:08:58,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:08:58 BoogieIcfgContainer [2020-09-25 01:08:58,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:08:58,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:08:58,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:08:58,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:08:58,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:08:57" (1/3) ... [2020-09-25 01:08:58,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c7f01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:08:58, skipping insertion in model container [2020-09-25 01:08:58,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:08:57" (2/3) ... [2020-09-25 01:08:58,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c7f01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:08:58, skipping insertion in model container [2020-09-25 01:08:58,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:08:58" (3/3) ... [2020-09-25 01:08:58,443 INFO L109 eAbstractionObserver]: Analyzing ICFG ms1f.c [2020-09-25 01:08:58,454 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:08:58,463 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:08:58,486 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:08:58,517 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:08:58,517 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:08:58,517 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:08:58,518 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:08:58,518 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:08:58,518 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:08:58,518 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:08:58,518 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:08:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-09-25 01:08:58,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 01:08:58,549 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:08:58,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:08:58,550 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:08:58,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:08:58,557 INFO L82 PathProgramCache]: Analyzing trace with hash -845632023, now seen corresponding path program 1 times [2020-09-25 01:08:58,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:08:58,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336354810] [2020-09-25 01:08:58,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:08:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:58,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:58,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:58,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:58,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 01:08:58,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:08:58,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 01:08:58,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 01:08:58,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:58,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:08:59,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:08:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:59,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:59,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:08:59,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:08:59,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:08:59,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:59,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:08:59,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:59,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:08:59,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 01:08:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:59,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:59,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:08:59,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:08:59,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:08:59,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:59,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:08:59,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:08:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:08:59,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336354810] [2020-09-25 01:08:59,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:08:59,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:08:59,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505665647] [2020-09-25 01:08:59,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:08:59,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:08:59,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:08:59,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:08:59,142 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 3 states. [2020-09-25 01:08:59,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:08:59,313 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2020-09-25 01:08:59,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:08:59,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-25 01:08:59,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:08:59,329 INFO L225 Difference]: With dead ends: 97 [2020-09-25 01:08:59,329 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 01:08:59,334 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 [2020-09-25 01:08:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 01:08:59,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 01:08:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 01:08:59,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2020-09-25 01:08:59,399 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 30 [2020-09-25 01:08:59,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:08:59,400 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2020-09-25 01:08:59,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:08:59,401 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2020-09-25 01:08:59,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 01:08:59,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:08:59,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:08:59,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:08:59,408 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:08:59,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:08:59,409 INFO L82 PathProgramCache]: Analyzing trace with hash 104990277, now seen corresponding path program 1 times [2020-09-25 01:08:59,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:08:59,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301109522] [2020-09-25 01:08:59,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:08:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:59,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:59,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 01:08:59,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:08:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-09-25 01:08:59,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 01:08:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 01:08:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:08:59,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:08:59,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:08:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:08:59,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:08:59,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:08:59,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:08:59,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:08:59,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 01:08:59,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:08:59,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:08:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:08:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:08:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:08:59,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 01:08:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:09:00,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:09:00,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:09:00,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:09:00,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:09:00,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 01:09:00,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 01:09:00,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:09:00,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:09:00,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:09:00,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:09:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:09:00,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301109522] [2020-09-25 01:09:00,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:09:00,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:09:00,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005131541] [2020-09-25 01:09:00,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:09:00,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:09:00,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:09:00,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:09:00,037 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 5 states. [2020-09-25 01:09:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:09:00,248 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2020-09-25 01:09:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 01:09:00,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-25 01:09:00,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:09:00,250 INFO L225 Difference]: With dead ends: 65 [2020-09-25 01:09:00,250 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 01:09:00,254 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 [2020-09-25 01:09:00,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 01:09:00,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 01:09:00,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 01:09:00,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-09-25 01:09:00,274 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 30 [2020-09-25 01:09:00,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:09:00,274 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-09-25 01:09:00,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:09:00,274 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-09-25 01:09:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-25 01:09:00,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:09:00,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:09:00,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:09:00,279 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:09:00,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:09:00,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1687643347, now seen corresponding path program 1 times [2020-09-25 01:09:00,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:09:00,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551816987] [2020-09-25 01:09:00,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:09:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:09:00,312 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:09:00,312 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:09:00,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:09:00,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:09:00 BoogieIcfgContainer [2020-09-25 01:09:00,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:09:00,345 INFO L168 Benchmark]: Toolchain (without parser) took 2872.76 ms. Allocated memory was 147.3 MB in the beginning and 235.4 MB in the end (delta: 88.1 MB). Free memory was 103.9 MB in the beginning and 174.4 MB in the end (delta: -70.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:00,347 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 01:09:00,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.38 ms. Allocated memory is still 147.3 MB. Free memory was 103.2 MB in the beginning and 92.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:00,349 INFO L168 Benchmark]: Boogie Preprocessor took 133.82 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 92.9 MB in the beginning and 180.6 MB in the end (delta: -87.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:00,350 INFO L168 Benchmark]: RCFGBuilder took 422.71 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 161.9 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:00,351 INFO L168 Benchmark]: TraceAbstraction took 1907.24 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 161.2 MB in the beginning and 174.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2020-09-25 01:09:00,355 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 399.38 ms. Allocated memory is still 147.3 MB. Free memory was 103.2 MB in the beginning and 92.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.82 ms. Allocated memory was 147.3 MB in the beginning and 202.9 MB in the end (delta: 55.6 MB). Free memory was 92.9 MB in the beginning and 180.6 MB in the end (delta: -87.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.71 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 161.9 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1907.24 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 161.2 MB in the beginning and 174.4 MB in the end (delta: -13.2 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 [L29] COND TRUE i