/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/indp5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 09:14:50,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 09:14:50,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 09:14:50,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 09:14:50,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 09:14:50,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 09:14:50,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 09:14:50,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 09:14:50,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 09:14:50,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 09:14:50,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 09:14:50,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 09:14:50,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 09:14:50,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 09:14:50,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 09:14:50,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 09:14:50,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 09:14:50,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 09:14:50,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 09:14:50,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 09:14:50,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 09:14:50,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 09:14:50,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 09:14:50,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 09:14:50,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 09:14:50,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 09:14:50,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 09:14:50,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 09:14:50,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 09:14:50,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 09:14:50,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 09:14:50,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 09:14:50,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 09:14:50,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 09:14:50,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 09:14:50,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 09:14:50,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 09:14:50,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 09:14:50,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 09:14:50,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 09:14:50,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 09:14:50,525 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 09:14:50,579 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 09:14:50,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 09:14:50,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 09:14:50,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 09:14:50,583 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 09:14:50,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 09:14:50,584 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 09:14:50,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 09:14:50,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 09:14:50,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 09:14:50,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 09:14:50,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 09:14:50,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 09:14:50,586 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 09:14:50,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 09:14:50,587 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 09:14:50,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 09:14:50,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 09:14:50,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 09:14:50,588 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 09:14:50,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 09:14:50,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 09:14:50,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 09:14:50,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 09:14:50,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 09:14:50,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 09:14:50,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 09:14:50,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 09:14:50,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 09:14:50,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 09:14:51,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 09:14:51,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 09:14:51,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 09:14:51,039 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 09:14:51,042 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 09:14:51,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5.c [2020-10-28 09:14:51,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aa4fab0c/2ef131143d8d43faa7bcf587f4450f4e/FLAG8e42809de [2020-10-28 09:14:51,757 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 09:14:51,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp5.c [2020-10-28 09:14:51,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aa4fab0c/2ef131143d8d43faa7bcf587f4450f4e/FLAG8e42809de [2020-10-28 09:14:51,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1aa4fab0c/2ef131143d8d43faa7bcf587f4450f4e [2020-10-28 09:14:51,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 09:14:51,797 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 09:14:51,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 09:14:51,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 09:14:51,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 09:14:51,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:14:51" (1/1) ... [2020-10-28 09:14:51,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4918ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:51, skipping insertion in model container [2020-10-28 09:14:51,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:14:51" (1/1) ... [2020-10-28 09:14:51,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 09:14:51,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 09:14:52,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:14:52,089 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 09:14:52,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 09:14:52,158 INFO L208 MainTranslator]: Completed translation [2020-10-28 09:14:52,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52 WrapperNode [2020-10-28 09:14:52,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 09:14:52,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 09:14:52,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 09:14:52,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 09:14:52,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52" (1/1) ... [2020-10-28 09:14:52,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52" (1/1) ... [2020-10-28 09:14:52,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52" (1/1) ... [2020-10-28 09:14:52,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52" (1/1) ... [2020-10-28 09:14:52,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52" (1/1) ... [2020-10-28 09:14:52,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52" (1/1) ... [2020-10-28 09:14:52,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52" (1/1) ... [2020-10-28 09:14:52,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 09:14:52,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 09:14:52,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 09:14:52,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 09:14:52,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52" (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 09:14:52,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 09:14:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 09:14:52,304 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 09:14:52,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 09:14:52,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 09:14:52,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 09:14:52,306 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 09:14:52,306 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 09:14:52,306 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 09:14:52,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 09:14:52,308 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 09:14:52,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 09:14:52,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 09:14:52,308 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 09:14:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 09:14:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 09:14:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 09:14:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 09:14:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 09:14:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 09:14:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 09:14:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 09:14:53,024 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 09:14:53,025 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-28 09:14:53,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:53 BoogieIcfgContainer [2020-10-28 09:14:53,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 09:14:53,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 09:14:53,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 09:14:53,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 09:14:53,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:14:51" (1/3) ... [2020-10-28 09:14:53,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236b66a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:14:53, skipping insertion in model container [2020-10-28 09:14:53,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:52" (2/3) ... [2020-10-28 09:14:53,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236b66a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:14:53, skipping insertion in model container [2020-10-28 09:14:53,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:53" (3/3) ... [2020-10-28 09:14:53,036 INFO L111 eAbstractionObserver]: Analyzing ICFG indp5.c [2020-10-28 09:14:53,049 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 09:14:53,054 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 09:14:53,068 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 09:14:53,096 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 09:14:53,096 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 09:14:53,096 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 09:14:53,096 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 09:14:53,096 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 09:14:53,097 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 09:14:53,097 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 09:14:53,097 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 09:14:53,115 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-28 09:14:53,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-28 09:14:53,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:14:53,123 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 09:14:53,123 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:14:53,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:14:53,130 INFO L82 PathProgramCache]: Analyzing trace with hash -462952442, now seen corresponding path program 1 times [2020-10-28 09:14:53,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:14:53,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430279666] [2020-10-28 09:14:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:14:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:53,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:53,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:53,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:53,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:53,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:53,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:55,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:55,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 09:14:55,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-28 09:14:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2207 [2020-10-28 09:14:55,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:55,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:14:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 09:14:55,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:14:55,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 09:14:55,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:14:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:55,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:55,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:55,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:14:55,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:14:55,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 09:14:55,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:55,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:14:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:14:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:14:55,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 09:14:55,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:14:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:55,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:55,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:55,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:55,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:14:55,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 09:14:55,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 09:14:55,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:55,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:14:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 09:14:55,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:14:55,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:14:55,650 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 09:14:55,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430279666] [2020-10-28 09:14:55,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:14:55,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 09:14:55,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354818121] [2020-10-28 09:14:55,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 09:14:55,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:14:55,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 09:14:55,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 09:14:55,676 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-28 09:14:55,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:14:55,820 INFO L93 Difference]: Finished difference Result 75 states and 99 transitions. [2020-10-28 09:14:55,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 09:14:55,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-10-28 09:14:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:14:55,830 INFO L225 Difference]: With dead ends: 75 [2020-10-28 09:14:55,830 INFO L226 Difference]: Without dead ends: 34 [2020-10-28 09:14:55,833 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 09:14:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-28 09:14:55,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-28 09:14:55,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-28 09:14:55,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-10-28 09:14:55,876 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 28 [2020-10-28 09:14:55,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:14:55,876 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-10-28 09:14:55,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 09:14:55,876 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-10-28 09:14:55,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-28 09:14:55,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:14:55,878 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 09:14:55,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 09:14:55,878 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:14:55,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:14:55,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1113016322, now seen corresponding path program 1 times [2020-10-28 09:14:55,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:14:55,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435529357] [2020-10-28 09:14:55,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:14:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:55,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:55,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:55,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:55,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:55,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:57,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:57,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-28 09:14:57,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 09:14:57,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1285 [2020-10-28 09:14:57,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:57,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:57,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 09:14:57,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 09:14:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 09:14:57,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:14:57,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 09:14:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:57,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:57,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:57,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 09:14:57,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:14:57,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 09:14:57,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:57,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 09:14:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:14:57,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 09:14:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 09:14:57,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 09:14:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 09:14:57,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 09:14:57,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 09:14:57,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 09:14:57,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 09:14:57,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 09:14:57,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 09:14:57,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 09:14:57,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 09:14:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 09:14:57,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 09:14:57,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 09:14:57,322 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 09:14:57,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435529357] [2020-10-28 09:14:57,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 09:14:57,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 09:14:57,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172369999] [2020-10-28 09:14:57,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 09:14:57,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 09:14:57,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 09:14:57,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 09:14:57,326 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 5 states. [2020-10-28 09:14:57,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 09:14:57,514 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2020-10-28 09:14:57,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 09:14:57,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-28 09:14:57,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 09:14:57,516 INFO L225 Difference]: With dead ends: 58 [2020-10-28 09:14:57,516 INFO L226 Difference]: Without dead ends: 39 [2020-10-28 09:14:57,517 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 09:14:57,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-28 09:14:57,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-28 09:14:57,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-28 09:14:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-10-28 09:14:57,527 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 28 [2020-10-28 09:14:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 09:14:57,528 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-10-28 09:14:57,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 09:14:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-10-28 09:14:57,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-28 09:14:57,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 09:14:57,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 09:14:57,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 09:14:57,531 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 09:14:57,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 09:14:57,532 INFO L82 PathProgramCache]: Analyzing trace with hash 849595736, now seen corresponding path program 1 times [2020-10-28 09:14:57,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 09:14:57,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792820613] [2020-10-28 09:14:57,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 09:14:57,559 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-28 09:14:57,559 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-28 09:14:57,559 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 09:14:57,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 09:14:57,586 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-28 09:14:57,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:14:57 BoogieIcfgContainer [2020-10-28 09:14:57,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 09:14:57,591 INFO L168 Benchmark]: Toolchain (without parser) took 5796.28 ms. Allocated memory was 158.3 MB in the beginning and 248.5 MB in the end (delta: 90.2 MB). Free memory was 132.4 MB in the beginning and 145.4 MB in the end (delta: -13.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 8.0 GB. [2020-10-28 09:14:57,592 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 158.3 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 09:14:57,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.20 ms. Allocated memory is still 158.3 MB. Free memory was 131.8 MB in the beginning and 121.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-28 09:14:57,595 INFO L168 Benchmark]: Boogie Preprocessor took 60.29 ms. Allocated memory is still 158.3 MB. Free memory was 121.7 MB in the beginning and 120.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 09:14:57,597 INFO L168 Benchmark]: RCFGBuilder took 804.29 ms. Allocated memory is still 158.3 MB. Free memory was 120.0 MB in the beginning and 138.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. [2020-10-28 09:14:57,599 INFO L168 Benchmark]: TraceAbstraction took 4558.46 ms. Allocated memory was 158.3 MB in the beginning and 248.5 MB in the end (delta: 90.2 MB). Free memory was 137.7 MB in the beginning and 145.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 83.5 MB. Max. memory is 8.0 GB. [2020-10-28 09:14:57,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 158.3 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 355.20 ms. Allocated memory is still 158.3 MB. Free memory was 131.8 MB in the beginning and 121.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 60.29 ms. Allocated memory is still 158.3 MB. Free memory was 121.7 MB in the beginning and 120.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 804.29 ms. Allocated memory is still 158.3 MB. Free memory was 120.0 MB in the beginning and 138.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4558.46 ms. Allocated memory was 158.3 MB in the beginning and 248.5 MB in the end (delta: 90.2 MB). Free memory was 137.7 MB in the beginning and 145.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 83.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [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] long long i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long sum[1]; [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i