/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/modnf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:33:10,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:33:10,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:33:10,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:33:10,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:33:10,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:33:10,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:33:10,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:33:10,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:33:10,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:33:10,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:33:10,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:33:10,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:33:10,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:33:10,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:33:10,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:33:10,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:33:10,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:33:10,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:33:10,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:33:10,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:33:10,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:33:10,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:33:10,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:33:10,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:33:10,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:33:10,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:33:10,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:33:10,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:33:10,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:33:10,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:33:10,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:33:10,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:33:10,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:33:10,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:33:10,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:33:10,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:33:10,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:33:10,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:33:10,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:33:10,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:33:10,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:33:10,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:33:10,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:33:10,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:33:10,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:33:10,828 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:33:10,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:33:10,828 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:33:10,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:33:10,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:33:10,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:33:10,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:33:10,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:33:10,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:33:10,830 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:33:10,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:33:10,830 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:33:10,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:33:10,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:33:10,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:33:10,831 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:33:10,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:33:10,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:33:10,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:33:10,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:33:10,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:33:10,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:33:10,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:33:10,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:33:10,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:33:10,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:33:11,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:33:11,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:33:11,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:33:11,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:33:11,356 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:33:11,357 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/modnf.c [2020-09-24 19:33:11,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3eb593111/5c83e06ea6894eb194881d0fd839c4fc/FLAG88323cb4b [2020-09-24 19:33:12,006 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:33:12,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/modnf.c [2020-09-24 19:33:12,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3eb593111/5c83e06ea6894eb194881d0fd839c4fc/FLAG88323cb4b [2020-09-24 19:33:12,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3eb593111/5c83e06ea6894eb194881d0fd839c4fc [2020-09-24 19:33:12,356 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:33:12,361 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:33:12,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:12,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:33:12,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:33:12,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:12" (1/1) ... [2020-09-24 19:33:12,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434f45a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12, skipping insertion in model container [2020-09-24 19:33:12,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:33:12" (1/1) ... [2020-09-24 19:33:12,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:33:12,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:33:12,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:12,652 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:33:12,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:33:12,699 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:33:12,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12 WrapperNode [2020-09-24 19:33:12,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:33:12,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:33:12,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:33:12,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:33:12,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12" (1/1) ... [2020-09-24 19:33:12,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12" (1/1) ... [2020-09-24 19:33:12,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12" (1/1) ... [2020-09-24 19:33:12,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12" (1/1) ... [2020-09-24 19:33:12,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12" (1/1) ... [2020-09-24 19:33:12,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12" (1/1) ... [2020-09-24 19:33:12,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12" (1/1) ... [2020-09-24 19:33:12,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:33:12,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:33:12,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:33:12,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:33:12,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:33:12,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:33:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:33:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 19:33:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 19:33:12,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:33:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:33:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 19:33:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 19:33:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 19:33:12,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:33:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:33:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:33:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:33:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:33:12,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:33:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:33:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:33:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:33:12,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:33:13,305 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:33:13,312 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-24 19:33:13,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:13 BoogieIcfgContainer [2020-09-24 19:33:13,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:33:13,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:33:13,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:33:13,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:33:13,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:33:12" (1/3) ... [2020-09-24 19:33:13,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a41d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:13, skipping insertion in model container [2020-09-24 19:33:13,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:33:12" (2/3) ... [2020-09-24 19:33:13,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a41d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:33:13, skipping insertion in model container [2020-09-24 19:33:13,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:33:13" (3/3) ... [2020-09-24 19:33:13,327 INFO L109 eAbstractionObserver]: Analyzing ICFG modnf.c [2020-09-24 19:33:13,337 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:33:13,346 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:33:13,368 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:33:13,399 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:33:13,399 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:33:13,399 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:33:13,399 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:33:13,399 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:33:13,399 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:33:13,399 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:33:13,400 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:33:13,421 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-09-24 19:33:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 19:33:13,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:13,431 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 19:33:13,431 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:13,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:13,438 INFO L82 PathProgramCache]: Analyzing trace with hash 864246722, now seen corresponding path program 1 times [2020-09-24 19:33:13,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:13,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844602007] [2020-09-24 19:33:13,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:13,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:13,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:13,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:14,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:14,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:33:14,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:33:14,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 707 [2020-09-24 19:33:14,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:14,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:14,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-09-24 19:33:14,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:14,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:33:14,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:14,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:14,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:14,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:33:14,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:33:14,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:14,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:14,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:14,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 19:33:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:14,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:14,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:14,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:14,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:14,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:33:14,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:14,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:14,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:14,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:33:14,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:33:14,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844602007] [2020-09-24 19:33:14,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:14,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:33:14,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278962890] [2020-09-24 19:33:14,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:33:14,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:14,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:33:14,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:33:14,455 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 3 states. [2020-09-24 19:33:14,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:14,631 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2020-09-24 19:33:14,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:33:14,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-09-24 19:33:14,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:14,655 INFO L225 Difference]: With dead ends: 105 [2020-09-24 19:33:14,655 INFO L226 Difference]: Without dead ends: 52 [2020-09-24 19:33:14,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:33:14,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-24 19:33:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-09-24 19:33:14,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-24 19:33:14,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-09-24 19:33:14,732 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 33 [2020-09-24 19:33:14,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:14,733 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-09-24 19:33:14,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:33:14,733 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-09-24 19:33:14,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 19:33:14,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:14,738 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 19:33:14,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:33:14,739 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:14,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:14,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1269072019, now seen corresponding path program 1 times [2020-09-24 19:33:14,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:14,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244394271] [2020-09-24 19:33:14,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:14,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:14,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:14,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:15,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:15,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:15,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:33:15,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 19:33:15,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 621 [2020-09-24 19:33:15,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:15,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:33:15,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 19:33:15,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 19:33:15,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:15,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:33:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:15,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:15,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:15,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:33:15,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:15,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:33:15,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:15,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:33:15,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:15,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:33:15,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:15,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 19:33:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:33:15,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:33:15,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:33:15,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:33:15,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:33:15,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:33:15,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:33:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:33:15,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:33:15,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:33:15,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:33:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:33:15,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244394271] [2020-09-24 19:33:15,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:33:15,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:33:15,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483708391] [2020-09-24 19:33:15,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:33:15,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:33:15,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:33:15,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:33:15,491 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 5 states. [2020-09-24 19:33:15,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:33:15,671 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-09-24 19:33:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:33:15,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-09-24 19:33:15,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:33:15,673 INFO L225 Difference]: With dead ends: 77 [2020-09-24 19:33:15,673 INFO L226 Difference]: Without dead ends: 55 [2020-09-24 19:33:15,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:33:15,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-24 19:33:15,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2020-09-24 19:33:15,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 19:33:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-09-24 19:33:15,685 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 33 [2020-09-24 19:33:15,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:33:15,686 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-09-24 19:33:15,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:33:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-09-24 19:33:15,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-24 19:33:15,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:33:15,688 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] [2020-09-24 19:33:15,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:33:15,689 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:33:15,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:33:15,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1661969402, now seen corresponding path program 1 times [2020-09-24 19:33:15,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:33:15,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562040174] [2020-09-24 19:33:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:33:15,706 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-24 19:33:15,706 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-24 19:33:15,707 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:33:15,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:33:15,734 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-24 19:33:15,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:33:15 BoogieIcfgContainer [2020-09-24 19:33:15,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:33:15,738 INFO L168 Benchmark]: Toolchain (without parser) took 3378.86 ms. Allocated memory was 136.8 MB in the beginning and 226.5 MB in the end (delta: 89.7 MB). Free memory was 99.7 MB in the beginning and 117.6 MB in the end (delta: -17.9 MB). Peak memory consumption was 71.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:15,739 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 136.8 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 19:33:15,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.92 ms. Allocated memory is still 136.8 MB. Free memory was 99.1 MB in the beginning and 88.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:15,741 INFO L168 Benchmark]: Boogie Preprocessor took 150.65 ms. Allocated memory was 136.8 MB in the beginning and 199.2 MB in the end (delta: 62.4 MB). Free memory was 88.6 MB in the beginning and 176.4 MB in the end (delta: -87.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:15,742 INFO L168 Benchmark]: RCFGBuilder took 466.81 ms. Allocated memory is still 199.2 MB. Free memory was 176.4 MB in the beginning and 157.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:15,743 INFO L168 Benchmark]: TraceAbstraction took 2415.46 ms. Allocated memory was 199.2 MB in the beginning and 226.5 MB in the end (delta: 27.3 MB). Free memory was 156.3 MB in the beginning and 117.6 MB in the end (delta: 38.6 MB). Peak memory consumption was 65.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:33:15,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 136.8 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 337.92 ms. Allocated memory is still 136.8 MB. Free memory was 99.1 MB in the beginning and 88.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.65 ms. Allocated memory was 136.8 MB in the beginning and 199.2 MB in the end (delta: 62.4 MB). Free memory was 88.6 MB in the beginning and 176.4 MB in the end (delta: -87.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 466.81 ms. Allocated memory is still 199.2 MB. Free memory was 176.4 MB in the beginning and 157.0 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2415.46 ms. Allocated memory was 199.2 MB in the beginning and 226.5 MB in the end (delta: 27.3 MB). Free memory was 156.3 MB in the beginning and 117.6 MB in the end (delta: 38.6 MB). Peak memory consumption was 65.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible 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] sum[0] = 0 [L30] i=0 [L30] COND TRUE i