/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/sina1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:20:08,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:20:08,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:20:08,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:20:08,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:20:08,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:20:08,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:20:08,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:20:08,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:20:08,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:20:08,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:20:08,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:20:08,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:20:08,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:20:08,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:20:08,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:20:08,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:20:08,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:20:08,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:20:08,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:20:08,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:20:08,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:20:08,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:20:08,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:20:08,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:20:08,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:20:08,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:20:08,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:20:08,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:20:08,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:20:08,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:20:08,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:20:08,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:20:08,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:20:08,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:20:08,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:20:08,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:20:08,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:20:08,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:20:08,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:20:08,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:20:08,379 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 17:20:08,429 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:20:08,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:20:08,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:20:08,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:20:08,431 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:20:08,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:20:08,434 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:20:08,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:20:08,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:20:08,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:20:08,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:20:08,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:20:08,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:20:08,435 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:20:08,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:20:08,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:20:08,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:20:08,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:20:08,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:20:08,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:20:08,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:20:08,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:20:08,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:20:08,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:20:08,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:20:08,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:20:08,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:20:08,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:20:08,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:20:08,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true; [2020-09-24 17:20:08,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:20:08,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:20:08,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:20:08,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:20:08,923 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:20:08,924 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina1f.c [2020-09-24 17:20:09,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2daef59ea/4253562b73a84257b0f87b7f0e306fb9/FLAG48302a023 [2020-09-24 17:20:09,592 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:20:09,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina1f.c [2020-09-24 17:20:09,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2daef59ea/4253562b73a84257b0f87b7f0e306fb9/FLAG48302a023 [2020-09-24 17:20:09,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2daef59ea/4253562b73a84257b0f87b7f0e306fb9 [2020-09-24 17:20:09,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:20:09,922 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:20:09,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:20:09,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:20:09,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:20:09,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:20:09" (1/1) ... [2020-09-24 17:20:09,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bc88a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:09, skipping insertion in model container [2020-09-24 17:20:09,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:20:09" (1/1) ... [2020-09-24 17:20:09,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:20:09,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:20:10,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:20:10,229 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:20:10,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:20:10,269 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:20:10,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10 WrapperNode [2020-09-24 17:20:10,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:20:10,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:20:10,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:20:10,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:20:10,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10" (1/1) ... [2020-09-24 17:20:10,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10" (1/1) ... [2020-09-24 17:20:10,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10" (1/1) ... [2020-09-24 17:20:10,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10" (1/1) ... [2020-09-24 17:20:10,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10" (1/1) ... [2020-09-24 17:20:10,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10" (1/1) ... [2020-09-24 17:20:10,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10" (1/1) ... [2020-09-24 17:20:10,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:20:10,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:20:10,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:20:10,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:20:10,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:20:10,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:20:10,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:20:10,477 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 17:20:10,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 17:20:10,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:20:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:20:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 17:20:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 17:20:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 17:20:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:20:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 17:20:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:20:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:20:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 17:20:10,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:20:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:20:10,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:20:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:20:10,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:20:10,849 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:20:10,849 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-24 17:20:10,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:20:10 BoogieIcfgContainer [2020-09-24 17:20:10,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:20:10,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:20:10,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:20:10,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:20:10,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:20:09" (1/3) ... [2020-09-24 17:20:10,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0a51dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:20:10, skipping insertion in model container [2020-09-24 17:20:10,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:20:10" (2/3) ... [2020-09-24 17:20:10,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0a51dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:20:10, skipping insertion in model container [2020-09-24 17:20:10,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:20:10" (3/3) ... [2020-09-24 17:20:10,864 INFO L109 eAbstractionObserver]: Analyzing ICFG sina1f.c [2020-09-24 17:20:10,877 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:20:10,887 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:20:10,910 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:20:10,939 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:20:10,939 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:20:10,940 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:20:10,940 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:20:10,940 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:20:10,940 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:20:10,940 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:20:10,940 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:20:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-09-24 17:20:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 17:20:10,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:20:10,972 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] [2020-09-24 17:20:10,972 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:20:10,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:20:10,979 INFO L82 PathProgramCache]: Analyzing trace with hash 864246722, now seen corresponding path program 1 times [2020-09-24 17:20:10,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:20:10,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708522797] [2020-09-24 17:20:10,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:20:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:11,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:11,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:11,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:11,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:11,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 17:20:11,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:20:11,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 737 [2020-09-24 17:20:11,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:20:11,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 17:20:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 17:20:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:20:11,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:20:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:11,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:11,999 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:11,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 17:20:12,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:20:12,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 17:20:12,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:12,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:20:12,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:20:12,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:20:12,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:20:12,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 17:20:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:20:12,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:20:12,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:20:12,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 17:20:12,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:20:12,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 17:20:12,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:20:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:20:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:20:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:20:12,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:20:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:20:12,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708522797] [2020-09-24 17:20:12,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:20:12,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 17:20:12,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862093874] [2020-09-24 17:20:12,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 17:20:12,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:20:12,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 17:20:12,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 17:20:12,092 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 6 states. [2020-09-24 17:20:12,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:20:12,477 INFO L93 Difference]: Finished difference Result 136 states and 162 transitions. [2020-09-24 17:20:12,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 17:20:12,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-24 17:20:12,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:20:12,493 INFO L225 Difference]: With dead ends: 136 [2020-09-24 17:20:12,493 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 17:20:12,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 17:20:12,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 17:20:12,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 54. [2020-09-24 17:20:12,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 17:20:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2020-09-24 17:20:12,562 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 33 [2020-09-24 17:20:12,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:20:12,562 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2020-09-24 17:20:12,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 17:20:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2020-09-24 17:20:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-24 17:20:12,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:20:12,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:20:12,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:20:12,566 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:20:12,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:20:12,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1661969402, now seen corresponding path program 1 times [2020-09-24 17:20:12,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:20:12,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487454822] [2020-09-24 17:20:12,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:20:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 17:20:12,594 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 17:20:12,594 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 17:20:12,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:20:12,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:20:12 BoogieIcfgContainer [2020-09-24 17:20:12,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:20:12,628 INFO L168 Benchmark]: Toolchain (without parser) took 2707.89 ms. Allocated memory was 140.0 MB in the beginning and 235.9 MB in the end (delta: 95.9 MB). Free memory was 103.2 MB in the beginning and 184.9 MB in the end (delta: -81.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:12,629 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 17:20:12,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.11 ms. Allocated memory is still 140.0 MB. Free memory was 102.6 MB in the beginning and 92.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:12,631 INFO L168 Benchmark]: Boogie Preprocessor took 124.36 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.2 MB in the beginning and 180.2 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:12,632 INFO L168 Benchmark]: RCFGBuilder took 459.25 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 161.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:12,633 INFO L168 Benchmark]: TraceAbstraction took 1767.97 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 161.4 MB in the beginning and 184.9 MB in the end (delta: -23.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-24 17:20:12,637 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 347.11 ms. Allocated memory is still 140.0 MB. Free memory was 102.6 MB in the beginning and 92.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.36 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.2 MB in the beginning and 180.2 MB in the end (delta: -88.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 459.25 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 161.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1767.97 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 161.4 MB in the beginning and 184.9 MB in the end (delta: -23.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] int sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i