/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=NARROWEST --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/ms4f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:18:21,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:18:21,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:18:21,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:18:21,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:18:21,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:18:21,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:18:21,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:18:21,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:18:21,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:18:21,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:18:21,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:18:21,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:18:21,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:18:21,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:18:21,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:18:21,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:18:21,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:18:21,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:18:21,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:18:21,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:18:21,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:18:21,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:18:21,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:18:21,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:18:21,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:18:21,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:18:21,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:18:21,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:18:21,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:18:21,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:18:21,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:18:21,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:18:21,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:18:21,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:18:21,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:18:21,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:18:21,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:18:21,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:18:21,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:18:21,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:18:21,752 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 02:18:21,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:18:21,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:18:21,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:18:21,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:18:21,803 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:18:21,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:18:21,803 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:18:21,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:18:21,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:18:21,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:18:21,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:18:21,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:18:21,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:18:21,807 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:18:21,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:18:21,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:18:21,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:18:21,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:18:21,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:18:21,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:18:21,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:18:21,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:18:21,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:18:21,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:18:21,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:18:21,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:18:21,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:18:21,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:18:21,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:18:21,810 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:18:22,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:18:22,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:18:22,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:18:22,321 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:18:22,322 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:18:22,323 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms4f.c [2020-09-25 02:18:22,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd8cb8c83/1ad52bca84a24e23bbc51a22184591af/FLAG5069cb87b [2020-09-25 02:18:22,935 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:18:22,936 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/ms4f.c [2020-09-25 02:18:22,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd8cb8c83/1ad52bca84a24e23bbc51a22184591af/FLAG5069cb87b [2020-09-25 02:18:23,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd8cb8c83/1ad52bca84a24e23bbc51a22184591af [2020-09-25 02:18:23,291 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:18:23,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:18:23,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:23,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:18:23,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:18:23,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:23" (1/1) ... [2020-09-25 02:18:23,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e164ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23, skipping insertion in model container [2020-09-25 02:18:23,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:23" (1/1) ... [2020-09-25 02:18:23,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:18:23,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:18:23,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:23,600 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:18:23,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:18:23,647 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:18:23,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23 WrapperNode [2020-09-25 02:18:23,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:18:23,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:18:23,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:18:23,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:18:23,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23" (1/1) ... [2020-09-25 02:18:23,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23" (1/1) ... [2020-09-25 02:18:23,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23" (1/1) ... [2020-09-25 02:18:23,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23" (1/1) ... [2020-09-25 02:18:23,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23" (1/1) ... [2020-09-25 02:18:23,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23" (1/1) ... [2020-09-25 02:18:23,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23" (1/1) ... [2020-09-25 02:18:23,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:18:23,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:18:23,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:18:23,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:18:23,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23" (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 02:18:23,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:18:23,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:18:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:18:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:18:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:18:23,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:18:23,941 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:18:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:18:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:18:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:18:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:18:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:18:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:18:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:18:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:18:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:18:23,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:18:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:18:23,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:18:24,299 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:18:24,300 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 02:18:24,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:24 BoogieIcfgContainer [2020-09-25 02:18:24,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:18:24,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:18:24,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:18:24,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:18:24,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:23" (1/3) ... [2020-09-25 02:18:24,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d206e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:24, skipping insertion in model container [2020-09-25 02:18:24,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:23" (2/3) ... [2020-09-25 02:18:24,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d206e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:24, skipping insertion in model container [2020-09-25 02:18:24,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:24" (3/3) ... [2020-09-25 02:18:24,315 INFO L109 eAbstractionObserver]: Analyzing ICFG ms4f.c [2020-09-25 02:18:24,326 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:18:24,336 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:18:24,358 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:18:24,387 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:18:24,387 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:18:24,387 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:18:24,387 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:18:24,387 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:18:24,388 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:18:24,388 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:18:24,388 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:18:24,411 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-09-25 02:18:24,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 02:18:24,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:24,421 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 02:18:24,421 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:24,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:24,428 INFO L82 PathProgramCache]: Analyzing trace with hash -845632023, now seen corresponding path program 1 times [2020-09-25 02:18:24,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:24,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936806264] [2020-09-25 02:18:24,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:24,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:24,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:24,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:24,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 02:18:24,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:18:24,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 02:18:24,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 02:18:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:24,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 02:18:24,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:18:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:24,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:24,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:24,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:18:24,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:24,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 02:18:24,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:24,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:24,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:24,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:24,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:18:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:24,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:24,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:24,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:18:24,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:24,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:18:24,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:24,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:24,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:24,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:24,993 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 02:18:24,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936806264] [2020-09-25 02:18:24,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:18:24,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:18:24,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875956848] [2020-09-25 02:18:25,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:18:25,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:18:25,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:18:25,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:18:25,033 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 3 states. [2020-09-25 02:18:25,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:18:25,209 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2020-09-25 02:18:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:18:25,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-25 02:18:25,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:18:25,223 INFO L225 Difference]: With dead ends: 97 [2020-09-25 02:18:25,223 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 02:18:25,227 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 02:18:25,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 02:18:25,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 02:18:25,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 02:18:25,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2020-09-25 02:18:25,275 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 30 [2020-09-25 02:18:25,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:18:25,275 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2020-09-25 02:18:25,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:18:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2020-09-25 02:18:25,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 02:18:25,277 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:25,277 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 02:18:25,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:18:25,278 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:25,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:25,278 INFO L82 PathProgramCache]: Analyzing trace with hash 104990277, now seen corresponding path program 1 times [2020-09-25 02:18:25,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:25,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131066155] [2020-09-25 02:18:25,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:25,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:25,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:25,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:25,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 02:18:25,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:18:25,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-09-25 02:18:25,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:25,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:18:25,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:18:25,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 02:18:25,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:25,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:18:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:25,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:25,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:25,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:18:25,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:25,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 02:18:25,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:18:25,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:18:25,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:25,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 02:18:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:18:25,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:18:25,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:18:25,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:18:25,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:18:25,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 02:18:25,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:18:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:18:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:18:25,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:18:25,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:18:25,876 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 02:18:25,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131066155] [2020-09-25 02:18:25,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:18:25,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:18:25,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950995211] [2020-09-25 02:18:25,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:18:25,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:18:25,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:18:25,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:18:25,882 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 5 states. [2020-09-25 02:18:26,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:18:26,041 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2020-09-25 02:18:26,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:18:26,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-09-25 02:18:26,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:18:26,044 INFO L225 Difference]: With dead ends: 65 [2020-09-25 02:18:26,044 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 02:18:26,045 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 02:18:26,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 02:18:26,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 02:18:26,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 02:18:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-09-25 02:18:26,055 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 30 [2020-09-25 02:18:26,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:18:26,056 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-09-25 02:18:26,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:18:26,056 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-09-25 02:18:26,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-25 02:18:26,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:18:26,058 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 02:18:26,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:18:26,058 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:18:26,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:18:26,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1687643347, now seen corresponding path program 1 times [2020-09-25 02:18:26,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:18:26,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159966041] [2020-09-25 02:18:26,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:18:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:18:26,084 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:18:26,084 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:18:26,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:18:26,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:26 BoogieIcfgContainer [2020-09-25 02:18:26,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:18:26,116 INFO L168 Benchmark]: Toolchain (without parser) took 2821.66 ms. Allocated memory was 138.4 MB in the beginning and 236.5 MB in the end (delta: 98.0 MB). Free memory was 101.6 MB in the beginning and 178.2 MB in the end (delta: -76.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:26,117 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 02:18:26,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.51 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 90.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:26,119 INFO L168 Benchmark]: Boogie Preprocessor took 214.80 ms. Allocated memory was 138.4 MB in the beginning and 206.0 MB in the end (delta: 67.6 MB). Free memory was 90.2 MB in the beginning and 183.3 MB in the end (delta: -93.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:26,120 INFO L168 Benchmark]: RCFGBuilder took 441.74 ms. Allocated memory is still 206.0 MB. Free memory was 183.3 MB in the beginning and 165.1 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:26,121 INFO L168 Benchmark]: TraceAbstraction took 1805.60 ms. Allocated memory was 206.0 MB in the beginning and 236.5 MB in the end (delta: 30.4 MB). Free memory was 164.4 MB in the beginning and 179.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:18:26,125 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 344.51 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 90.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 214.80 ms. Allocated memory was 138.4 MB in the beginning and 206.0 MB in the end (delta: 67.6 MB). Free memory was 90.2 MB in the beginning and 183.3 MB in the end (delta: -93.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.74 ms. Allocated memory is still 206.0 MB. Free memory was 183.3 MB in the beginning and 165.1 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1805.60 ms. Allocated memory was 206.0 MB in the beginning and 236.5 MB in the end (delta: 30.4 MB). Free memory was 164.4 MB in the beginning and 179.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 15.2 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] i=0 [L29] COND TRUE i 3*N) [L13] COND TRUE !(cond) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 62 SDslu, 29 SDs, 0 SdLazy, 108 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2842 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...