/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/ms4f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:15:06,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:15:06,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:15:06,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:15:06,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:15:06,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:15:06,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:15:06,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:15:06,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:15:06,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:15:06,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:15:06,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:15:06,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:15:06,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:15:06,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:15:06,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:15:06,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:15:06,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:15:06,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:15:06,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:15:06,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:15:06,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:15:06,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:15:06,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:15:06,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:15:06,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:15:06,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:15:06,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:15:06,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:15:06,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:15:06,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:15:06,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:15:06,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:15:06,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:15:06,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:15:06,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:15:06,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:15:06,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:15:06,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:15:06,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:15:06,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:15:06,364 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 09:15:06,420 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:15:06,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:15:06,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:15:06,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:15:06,423 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:15:06,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:15:06,423 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:15:06,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:15:06,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:15:06,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:15:06,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:15:06,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:15:06,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:15:06,424 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:15:06,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:15:06,425 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:15:06,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:15:06,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:15:06,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:15:06,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:15:06,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:15:06,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:15:06,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:15:06,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:15:06,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:15:06,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:15:06,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:15:06,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:15:06,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:15:06,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:15:06,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:15:06,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:15:06,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:15:06,882 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:15:06,883 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:15:06,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms4f.c [2020-10-28 09:15:06,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64bebad93/562a0f35d8274621b1d76934ac90a4e0/FLAG33c43265f [2020-10-28 09:15:07,684 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:15:07,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/ms4f.c [2020-10-28 09:15:07,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64bebad93/562a0f35d8274621b1d76934ac90a4e0/FLAG33c43265f [2020-10-28 09:15:08,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64bebad93/562a0f35d8274621b1d76934ac90a4e0 [2020-10-28 09:15:08,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:15:08,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:15:08,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:15:08,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:15:08,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:15:08,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:15:08" (1/1) ... [2020-10-28 09:15:08,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e11acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08, skipping insertion in model container [2020-10-28 09:15:08,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:15:08" (1/1) ... [2020-10-28 09:15:08,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:15:08,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:15:08,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:15:08,309 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:15:08,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:15:08,381 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:15:08,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08 WrapperNode [2020-10-28 09:15:08,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:15:08,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:15:08,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:15:08,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:15:08,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08" (1/1) ... [2020-10-28 09:15:08,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08" (1/1) ... [2020-10-28 09:15:08,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08" (1/1) ... [2020-10-28 09:15:08,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08" (1/1) ... [2020-10-28 09:15:08,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08" (1/1) ... [2020-10-28 09:15:08,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08" (1/1) ... [2020-10-28 09:15:08,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08" (1/1) ... [2020-10-28 09:15:08,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:15:08,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:15:08,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:15:08,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:15:08,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08" (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 09:15:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:15:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:15:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:15:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 09:15:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:15:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:15:08,582 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:15:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:15:08,583 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:15:08,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:15:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 09:15:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:15:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 09:15:08,585 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 09:15:08,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:15:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 09:15:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:15:08,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:15:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:15:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:15:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:15:08,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:15:09,217 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:15:09,217 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-28 09:15:09,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:15:09 BoogieIcfgContainer [2020-10-28 09:15:09,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:15:09,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:15:09,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:15:09,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:15:09,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:15:08" (1/3) ... [2020-10-28 09:15:09,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a861c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:15:09, skipping insertion in model container [2020-10-28 09:15:09,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:15:08" (2/3) ... [2020-10-28 09:15:09,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a861c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:15:09, skipping insertion in model container [2020-10-28 09:15:09,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:15:09" (3/3) ... [2020-10-28 09:15:09,263 INFO L111 eAbstractionObserver]: Analyzing ICFG ms4f.c [2020-10-28 09:15:09,278 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:15:09,284 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:15:09,300 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:15:09,345 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:15:09,346 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:15:09,346 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:15:09,346 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:15:09,346 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:15:09,346 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:15:09,346 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:15:09,346 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:15:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-10-28 09:15:09,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 09:15:09,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:15:09,380 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] [2020-10-28 09:15:09,380 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:15:09,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:15:09,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1361575079, now seen corresponding path program 1 times [2020-10-28 09:15:09,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:15:09,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970178048] [2020-10-28 09:15:09,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:15:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:09,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:09,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:09,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:10,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:10,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 09:15:10,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 09:15:10,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-10-28 09:15:10,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:10,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:10,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:15:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-28 09:15:10,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:15:10,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 09:15:10,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:15:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:10,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:10,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:10,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:15:10,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:15:10,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 09:15:10,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:10,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:10,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:15:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:15:10,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:15:10,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:15:10,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:15:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:10,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:10,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:10,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:15:10,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:15:10,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:15:10,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:10,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:15:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 09:15:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:15:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:15:10,280 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 09:15:10,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970178048] [2020-10-28 09:15:10,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:15:10,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 09:15:10,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722017400] [2020-10-28 09:15:10,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 09:15:10,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:15:10,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 09:15:10,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:15:10,308 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2020-10-28 09:15:10,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:15:10,420 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2020-10-28 09:15:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 09:15:10,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-28 09:15:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:15:10,430 INFO L225 Difference]: With dead ends: 59 [2020-10-28 09:15:10,431 INFO L226 Difference]: Without dead ends: 26 [2020-10-28 09:15:10,435 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 09:15:10,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-28 09:15:10,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-28 09:15:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-28 09:15:10,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-10-28 09:15:10,482 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 22 [2020-10-28 09:15:10,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:15:10,482 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-10-28 09:15:10,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 09:15:10,483 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-10-28 09:15:10,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 09:15:10,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:15:10,484 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] [2020-10-28 09:15:10,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:15:10,485 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:15:10,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:15:10,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1173980304, now seen corresponding path program 1 times [2020-10-28 09:15:10,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:15:10,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48429165] [2020-10-28 09:15:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:15:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:10,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:10,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:10,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:10,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 09:15:10,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:15:10,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-28 09:15:10,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:10,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:10,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:15:10,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 09:15:10,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 09:15:10,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-28 09:15:11,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:15:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:11,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:11,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:11,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:15:11,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:15:11,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 09:15:11,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:11,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:11,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:15:11,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:15:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:15:11,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:15:11,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:15:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:15:11,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:15:11,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:15:11,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:15:11,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:15:11,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 09:15:11,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:15:11,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:15:11,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:15:11,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:15:11,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:15:11,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:15:11,116 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 09:15:11,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48429165] [2020-10-28 09:15:11,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:15:11,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:15:11,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750644305] [2020-10-28 09:15:11,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:15:11,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:15:11,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:15:11,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:15:11,123 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 5 states. [2020-10-28 09:15:11,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:15:11,292 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-10-28 09:15:11,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:15:11,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-28 09:15:11,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:15:11,294 INFO L225 Difference]: With dead ends: 39 [2020-10-28 09:15:11,294 INFO L226 Difference]: Without dead ends: 28 [2020-10-28 09:15:11,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 09:15:11,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-28 09:15:11,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-28 09:15:11,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-28 09:15:11,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-10-28 09:15:11,304 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 22 [2020-10-28 09:15:11,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:15:11,305 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-10-28 09:15:11,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:15:11,305 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-10-28 09:15:11,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 09:15:11,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:15:11,306 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] [2020-10-28 09:15:11,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:15:11,307 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:15:11,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:15:11,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1619095335, now seen corresponding path program 1 times [2020-10-28 09:15:11,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:15:11,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825755679] [2020-10-28 09:15:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:15:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 09:15:11,336 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 09:15:11,336 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:15:11,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:15:11,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:15:11 BoogieIcfgContainer [2020-10-28 09:15:11,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:15:11,361 INFO L168 Benchmark]: Toolchain (without parser) took 3297.63 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 126.9 MB in the beginning and 121.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 43.9 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:11,362 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:15:11,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:11,364 INFO L168 Benchmark]: Boogie Preprocessor took 86.62 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 114.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:11,364 INFO L168 Benchmark]: RCFGBuilder took 750.95 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 98.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:11,365 INFO L168 Benchmark]: TraceAbstraction took 2106.56 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 134.5 MB in the beginning and 121.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 8.0 GB. [2020-10-28 09:15:11,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 308.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 86.62 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 114.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 750.95 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 98.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2106.56 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 134.5 MB in the beginning and 121.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 50.3 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); [L31] i=0 [L31] COND TRUE i 3*N) [L15] COND TRUE !(cond) [L15] CALL reach_error() [L10] __assert_fail("0", "ms4f.c", 10, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 35 SDslu, 15 SDs, 0 SdLazy, 65 SolverSat, 15 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, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 1.3s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 2520 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...