/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/condmf.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:14:09,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:14:09,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:14:09,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:14:09,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:14:09,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:14:09,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:14:09,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:14:09,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:14:09,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:14:09,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:14:09,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:14:09,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:14:09,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:14:09,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:14:09,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:14:09,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:14:09,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:14:09,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:14:09,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:14:09,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:14:09,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:14:09,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:14:09,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:14:09,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:14:09,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:14:09,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:14:09,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:14:09,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:14:09,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:14:09,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:14:09,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:14:09,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:14:09,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:14:09,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:14:09,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:14:09,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:14:09,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:14:09,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:14:09,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:14:09,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:14:09,617 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 09:14:09,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:14:09,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:14:09,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:14:09,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:14:09,662 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:14:09,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:14:09,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:14:09,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:14:09,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:14:09,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:14:09,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:14:09,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:14:09,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:14:09,664 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:14:09,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:14:09,665 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:14:09,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:14:09,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:14:09,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:14:09,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:14:09,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:14:09,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:14:09,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:14:09,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:14:09,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:14:09,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:14:09,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:14:09,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:14:09,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:14:09,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:14:10,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:14:10,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:14:10,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:14:10,109 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:14:10,110 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:14:10,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condmf.c [2020-10-28 09:14:10,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c681a328f/3ddeefe552634317bf79cf78581c072b/FLAG0a9c2ef6c [2020-10-28 09:14:10,896 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:14:10,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/condmf.c [2020-10-28 09:14:10,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c681a328f/3ddeefe552634317bf79cf78581c072b/FLAG0a9c2ef6c [2020-10-28 09:14:11,269 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c681a328f/3ddeefe552634317bf79cf78581c072b [2020-10-28 09:14:11,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:14:11,282 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:14:11,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:14:11,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:14:11,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:14:11,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:14:11" (1/1) ... [2020-10-28 09:14:11,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a20cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11, skipping insertion in model container [2020-10-28 09:14:11,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:14:11" (1/1) ... [2020-10-28 09:14:11,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:14:11,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:14:11,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:14:11,591 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:14:11,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:14:11,651 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:14:11,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11 WrapperNode [2020-10-28 09:14:11,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:14:11,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:14:11,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:14:11,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:14:11,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11" (1/1) ... [2020-10-28 09:14:11,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11" (1/1) ... [2020-10-28 09:14:11,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11" (1/1) ... [2020-10-28 09:14:11,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11" (1/1) ... [2020-10-28 09:14:11,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11" (1/1) ... [2020-10-28 09:14:11,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11" (1/1) ... [2020-10-28 09:14:11,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11" (1/1) ... [2020-10-28 09:14:11,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:14:11,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:14:11,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:14:11,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:14:11,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11" (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 09:14:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:14:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:14:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:14:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 09:14:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:14:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:14:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:14:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:14:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:14:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:14:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 09:14:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:14:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 09:14:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 09:14:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:14:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 09:14:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:14:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:14:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:14:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:14:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:14:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:14:12,151 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:14:12,151 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-28 09:14:12,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:12 BoogieIcfgContainer [2020-10-28 09:14:12,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:14:12,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:14:12,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:14:12,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:14:12,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:14:11" (1/3) ... [2020-10-28 09:14:12,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5353e872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:14:12, skipping insertion in model container [2020-10-28 09:14:12,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:11" (2/3) ... [2020-10-28 09:14:12,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5353e872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:14:12, skipping insertion in model container [2020-10-28 09:14:12,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:12" (3/3) ... [2020-10-28 09:14:12,164 INFO L111 eAbstractionObserver]: Analyzing ICFG condmf.c [2020-10-28 09:14:12,179 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:14:12,185 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:14:12,200 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:14:12,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:14:12,232 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:14:12,232 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:14:12,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:14:12,232 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:14:12,232 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:14:12,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:14:12,233 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:14:12,258 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-28 09:14:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-28 09:14:12,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:14:12,269 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] [2020-10-28 09:14:12,270 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:14:12,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:14:12,277 INFO L82 PathProgramCache]: Analyzing trace with hash -603566119, now seen corresponding path program 1 times [2020-10-28 09:14:12,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:14:12,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745354365] [2020-10-28 09:14:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:14:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:12,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:12,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:12,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:12,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:13,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:13,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 09:14:13,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:14:13,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 948 [2020-10-28 09:14:13,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:13,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:13,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:14:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-28 09:14:13,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:14:13,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 09:14:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:14:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:13,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:13,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:13,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:14:13,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:14:13,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 09:14:13,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:13,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:13,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:14:13,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:14:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:14:13,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:14:13,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:14:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:13,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:13,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:13,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:13,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:14:13,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:14:13,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:14:13,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:13,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:13,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:14:13,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 09:14:13,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:14:13,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:14:13,591 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 09:14:13,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745354365] [2020-10-28 09:14:13,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:14:13,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 09:14:13,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997304860] [2020-10-28 09:14:13,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 09:14:13,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:14:13,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 09:14:13,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:14:13,627 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 3 states. [2020-10-28 09:14:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:14:13,774 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2020-10-28 09:14:13,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 09:14:13,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-28 09:14:13,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:14:13,787 INFO L225 Difference]: With dead ends: 65 [2020-10-28 09:14:13,787 INFO L226 Difference]: Without dead ends: 31 [2020-10-28 09:14:13,792 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 09:14:13,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-28 09:14:13,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-28 09:14:13,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-28 09:14:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-10-28 09:14:13,878 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 23 [2020-10-28 09:14:13,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:14:13,879 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-10-28 09:14:13,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 09:14:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-10-28 09:14:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-28 09:14:13,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:14:13,881 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] [2020-10-28 09:14:13,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:14:13,882 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:14:13,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:14:13,883 INFO L82 PathProgramCache]: Analyzing trace with hash 689239426, now seen corresponding path program 1 times [2020-10-28 09:14:13,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:14:13,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1339264968] [2020-10-28 09:14:13,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:14:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:13,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:13,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:14,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:14,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:14,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:14,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 09:14:14,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 09:14:14,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-10-28 09:14:14,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:14,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:14:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 09:14:14,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 09:14:14,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:14:14,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:14:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:14,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:14,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:14,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:14:14,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:14:14,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 09:14:14,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:14,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:14:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:14:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:14:14,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:14:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:14:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:14,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:14,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:14:14,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:14:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 09:14:14,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:14,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:14:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:14:14,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:14:14,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 25 [2020-10-28 09:14:14,774 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 09:14:14,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1339264968] [2020-10-28 09:14:14,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:14:14,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:14:14,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979506110] [2020-10-28 09:14:14,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:14:14,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:14:14,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:14:14,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:14:14,786 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 5 states. [2020-10-28 09:14:14,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:14:14,971 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-10-28 09:14:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:14:14,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-28 09:14:14,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:14:14,973 INFO L225 Difference]: With dead ends: 50 [2020-10-28 09:14:14,973 INFO L226 Difference]: Without dead ends: 34 [2020-10-28 09:14:14,975 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 09:14:14,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-28 09:14:14,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2020-10-28 09:14:14,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-28 09:14:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2020-10-28 09:14:14,986 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 23 [2020-10-28 09:14:14,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:14:14,986 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2020-10-28 09:14:14,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:14:14,987 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2020-10-28 09:14:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-28 09:14:14,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:14:14,988 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] [2020-10-28 09:14:14,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:14:14,989 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:14:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:14:14,990 INFO L82 PathProgramCache]: Analyzing trace with hash 493588519, now seen corresponding path program 1 times [2020-10-28 09:14:14,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:14:14,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1569379734] [2020-10-28 09:14:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:14:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 09:14:15,018 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 09:14:15,019 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:14:15,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:14:15,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:14:15 BoogieIcfgContainer [2020-10-28 09:14:15,047 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:14:15,051 INFO L168 Benchmark]: Toolchain (without parser) took 3771.62 ms. Allocated memory was 157.3 MB in the beginning and 195.0 MB in the end (delta: 37.7 MB). Free memory was 133.7 MB in the beginning and 150.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 8.0 GB. [2020-10-28 09:14:15,052 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 157.3 MB. Free memory is still 131.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:14:15,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.46 ms. Allocated memory is still 157.3 MB. Free memory was 133.0 MB in the beginning and 123.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 09:14:15,054 INFO L168 Benchmark]: Boogie Preprocessor took 78.19 ms. Allocated memory is still 157.3 MB. Free memory was 123.3 MB in the beginning and 121.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:14:15,055 INFO L168 Benchmark]: RCFGBuilder took 420.80 ms. Allocated memory is still 157.3 MB. Free memory was 121.5 MB in the beginning and 104.9 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-28 09:14:15,056 INFO L168 Benchmark]: TraceAbstraction took 2891.66 ms. Allocated memory was 157.3 MB in the beginning and 195.0 MB in the end (delta: 37.7 MB). Free memory was 104.5 MB in the beginning and 150.2 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:14:15,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 157.3 MB. Free memory is still 131.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 369.46 ms. Allocated memory is still 157.3 MB. Free memory was 133.0 MB in the beginning and 123.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 78.19 ms. Allocated memory is still 157.3 MB. Free memory was 123.3 MB in the beginning and 121.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 420.80 ms. Allocated memory is still 157.3 MB. Free memory was 121.5 MB in the beginning and 104.9 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2891.66 ms. Allocated memory was 157.3 MB in the beginning and 195.0 MB in the end (delta: 37.7 MB). Free memory was 104.5 MB in the beginning and 150.2 MB in the end (delta: -45.7 MB). There was no memory consumed. 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] int *a = malloc(sizeof(int)*N); [L30] i = 0 [L30] COND TRUE i < N [L32] a[i] = 0 [L30] i++ [L30] COND FALSE !(i < N) [L35] i = 0 [L35] COND TRUE i < N [L37] COND TRUE N%2 == 1 [L39] EXPR a[i] [L39] a[i] = a[i] + 2 [L35] i++ [L35] COND FALSE !(i < N) [L47] i = 0 [L47] COND TRUE i < N [L49] EXPR a[i] [L49] CALL __VERIFIER_assert(a[i] % 2 == N % 2) [L15] COND TRUE !(cond) [L15] CALL reach_error() [L10] __assert_fail("0", "condmf.c", 10, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 43 SDslu, 14 SDs, 0 SdLazy, 79 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 2684 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...