/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-fpi/res1of.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:15:23,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:15:23,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:15:23,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:15:23,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:15:23,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:15:23,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:15:23,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:15:23,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:15:23,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:15:23,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:15:23,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:15:23,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:15:23,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:15:23,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:15:23,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:15:23,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:15:23,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:15:23,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:15:23,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:15:23,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:15:23,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:15:23,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:15:23,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:15:23,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:15:23,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:15:23,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:15:23,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:15:23,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:15:23,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:15:23,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:15:23,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:15:23,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:15:23,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:15:23,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:15:23,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:15:23,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:15:23,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:15:23,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:15:23,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:15:23,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:15:23,750 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 [2020-10-28 09:15:23,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:15:23,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:15:23,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:15:23,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:15:23,780 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:15:23,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:15:23,780 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:15:23,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:15:23,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:15:23,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:15:23,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:15:23,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:15:23,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:15:23,782 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:15:23,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:15:23,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:15:23,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:15:23,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:15:23,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:15:23,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:15:23,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:15:23,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:15:23,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:15:23,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:15:23,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:15:23,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:15:23,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:15:23,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:15:23,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:15:23,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:15:24,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:15:24,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:15:24,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:15:24,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:15:24,205 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:15:24,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res1of.c [2020-10-28 09:15:24,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c45a64d7b/0250cf082332498a9103acc2d3af9c27/FLAG1fe64bd03 [2020-10-28 09:15:25,028 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:15:25,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res1of.c [2020-10-28 09:15:25,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c45a64d7b/0250cf082332498a9103acc2d3af9c27/FLAG1fe64bd03 [2020-10-28 09:15:25,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c45a64d7b/0250cf082332498a9103acc2d3af9c27 [2020-10-28 09:15:25,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:15:25,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:15:25,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:15:25,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:15:25,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:15:25,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:15:25" (1/1) ... [2020-10-28 09:15:25,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59dd5fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25, skipping insertion in model container [2020-10-28 09:15:25,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:15:25" (1/1) ... [2020-10-28 09:15:25,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:15:25,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:15:25,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:15:25,627 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:15:25,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:15:25,668 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:15:25,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25 WrapperNode [2020-10-28 09:15:25,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:15:25,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:15:25,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:15:25,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:15:25,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25" (1/1) ... [2020-10-28 09:15:25,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25" (1/1) ... [2020-10-28 09:15:25,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25" (1/1) ... [2020-10-28 09:15:25,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25" (1/1) ... [2020-10-28 09:15:25,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25" (1/1) ... [2020-10-28 09:15:25,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25" (1/1) ... [2020-10-28 09:15:25,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25" (1/1) ... [2020-10-28 09:15:25,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:15:25,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:15:25,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:15:25,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:15:25,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25" (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 [2020-10-28 09:15:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:15:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:15:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:15:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 09:15:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:15:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:15:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:15:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:15:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:15:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:15:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 09:15:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:15:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 09:15:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 09:15:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:15:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 09:15:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:15:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:15:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:15:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:15:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:15:25,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:15:26,342 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:15:26,342 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-28 09:15:26,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:15:26 BoogieIcfgContainer [2020-10-28 09:15:26,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:15:26,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:15:26,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:15:26,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:15:26,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:15:25" (1/3) ... [2020-10-28 09:15:26,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40bde298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:15:26, skipping insertion in model container [2020-10-28 09:15:26,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:25" (2/3) ... [2020-10-28 09:15:26,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40bde298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:15:26, skipping insertion in model container [2020-10-28 09:15:26,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:15:26" (3/3) ... [2020-10-28 09:15:26,355 INFO L111 eAbstractionObserver]: Analyzing ICFG res1of.c [2020-10-28 09:15:26,370 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:15:26,377 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:15:26,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:15:26,426 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:15:26,426 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:15:26,426 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:15:26,427 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:15:26,427 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:15:26,427 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:15:26,427 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:15:26,427 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:15:26,448 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2020-10-28 09:15:26,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-28 09:15:26,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:15:26,457 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] [2020-10-28 09:15:26,457 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:15:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:15:26,464 INFO L82 PathProgramCache]: Analyzing trace with hash -181434534, now seen corresponding path program 1 times [2020-10-28 09:15:26,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:15:26,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640869180] [2020-10-28 09:15:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:15:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:26,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:26,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:26,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:27,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:27,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:27,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:29,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:29,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-28 09:15:29,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:15:29,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2869 [2020-10-28 09:15:29,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:29,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:15:29,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 09:15:29,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:15:29,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 09:15:29,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:15:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:29,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:29,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:29,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:15:29,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:15:29,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 09:15:29,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:29,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:29,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:15:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:15:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:15:29,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:15:29,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:15:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:29,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:29,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:29,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:15:29,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:15:29,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:15:29,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:29,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:15:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 09:15:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:15:29,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:15:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:15:29,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640869180] [2020-10-28 09:15:29,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:15:29,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 09:15:29,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477402830] [2020-10-28 09:15:29,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 09:15:29,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:15:29,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 09:15:29,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:15:29,656 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2020-10-28 09:15:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:15:29,781 INFO L93 Difference]: Finished difference Result 69 states and 89 transitions. [2020-10-28 09:15:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 09:15:29,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-28 09:15:29,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:15:29,793 INFO L225 Difference]: With dead ends: 69 [2020-10-28 09:15:29,794 INFO L226 Difference]: Without dead ends: 31 [2020-10-28 09:15:29,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:15:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-28 09:15:29,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-28 09:15:29,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-28 09:15:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-10-28 09:15:29,845 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 26 [2020-10-28 09:15:29,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:15:29,846 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-10-28 09:15:29,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 09:15:29,846 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-10-28 09:15:29,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-28 09:15:29,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:15:29,848 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] [2020-10-28 09:15:29,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:15:29,849 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:15:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:15:29,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1769782436, now seen corresponding path program 1 times [2020-10-28 09:15:29,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:15:29,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419917862] [2020-10-28 09:15:29,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:15:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:29,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:29,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:29,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:29,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:30,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:31,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:31,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-28 09:15:31,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:15:31,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1582 [2020-10-28 09:15:31,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:31,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:31,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:15:31,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 09:15:31,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 09:15:31,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:15:31,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:15:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:31,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:31,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:31,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:15:31,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:15:31,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 09:15:31,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:31,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:15:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:15:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:15:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:15:31,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:15:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:31,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:31,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:31,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:15:31,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:15:31,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:15:31,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:31,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:31,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:15:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:15:31,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:15:31,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:15:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 09:15:31,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419917862] [2020-10-28 09:15:31,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:15:31,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:15:31,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769475861] [2020-10-28 09:15:31,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:15:31,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:15:31,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:15:31,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:15:31,557 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 5 states. [2020-10-28 09:15:31,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:15:31,742 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2020-10-28 09:15:31,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:15:31,743 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-28 09:15:31,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:15:31,744 INFO L225 Difference]: With dead ends: 51 [2020-10-28 09:15:31,744 INFO L226 Difference]: Without dead ends: 35 [2020-10-28 09:15:31,746 INFO L677 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 [2020-10-28 09:15:31,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-28 09:15:31,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-28 09:15:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-28 09:15:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-10-28 09:15:31,756 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 26 [2020-10-28 09:15:31,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:15:31,756 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-10-28 09:15:31,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:15:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-10-28 09:15:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-28 09:15:31,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:15:31,758 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] [2020-10-28 09:15:31,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:15:31,759 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:15:31,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:15:31,760 INFO L82 PathProgramCache]: Analyzing trace with hash -697842092, now seen corresponding path program 1 times [2020-10-28 09:15:31,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:15:31,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226631803] [2020-10-28 09:15:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:15:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 09:15:31,789 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 09:15:31,789 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:15:31,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:15:31,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:15:31 BoogieIcfgContainer [2020-10-28 09:15:31,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:15:31,816 INFO L168 Benchmark]: Toolchain (without parser) took 6459.56 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 132.2 MB in the beginning and 112.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 50.2 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:31,817 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 123.4 MB in the end (delta: 74.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:15:31,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.74 ms. Allocated memory is still 151.0 MB. Free memory was 131.6 MB in the beginning and 121.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:31,820 INFO L168 Benchmark]: Boogie Preprocessor took 53.17 ms. Allocated memory is still 151.0 MB. Free memory was 121.7 MB in the beginning and 134.5 MB in the end (delta: -12.8 MB). Peak memory consumption was 3.9 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:31,821 INFO L168 Benchmark]: RCFGBuilder took 619.84 ms. Allocated memory is still 151.0 MB. Free memory was 134.2 MB in the beginning and 116.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:31,824 INFO L168 Benchmark]: TraceAbstraction took 5466.60 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 115.6 MB in the beginning and 112.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 34.7 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:31,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 123.5 MB in the beginning and 123.4 MB in the end (delta: 74.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 307.74 ms. Allocated memory is still 151.0 MB. Free memory was 131.6 MB in the beginning and 121.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.17 ms. Allocated memory is still 151.0 MB. Free memory was 121.7 MB in the beginning and 134.5 MB in the end (delta: -12.8 MB). Peak memory consumption was 3.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 619.84 ms. Allocated memory is still 151.0 MB. Free memory was 134.2 MB in the beginning and 116.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5466.60 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 115.6 MB in the beginning and 112.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 34.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L32] sum[0] = 0 [L33] i=0 [L33] COND TRUE i