/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=SHALLOWEST --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/sina1f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 19:42:20,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 19:42:20,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 19:42:20,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 19:42:20,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 19:42:20,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 19:42:20,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 19:42:20,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 19:42:20,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 19:42:20,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 19:42:20,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 19:42:20,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 19:42:20,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 19:42:20,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 19:42:20,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 19:42:20,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 19:42:20,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 19:42:20,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 19:42:20,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 19:42:20,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 19:42:20,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 19:42:20,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 19:42:20,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 19:42:20,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 19:42:20,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 19:42:20,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 19:42:20,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 19:42:20,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 19:42:20,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 19:42:20,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 19:42:20,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 19:42:20,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 19:42:20,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 19:42:20,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 19:42:20,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 19:42:20,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 19:42:20,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 19:42:20,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 19:42:20,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 19:42:20,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 19:42:20,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 19:42:20,820 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 [2020-10-26 19:42:20,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 19:42:20,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 19:42:20,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 19:42:20,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 19:42:20,888 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 19:42:20,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 19:42:20,889 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 19:42:20,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 19:42:20,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 19:42:20,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 19:42:20,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 19:42:20,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 19:42:20,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 19:42:20,891 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 19:42:20,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 19:42:20,892 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 19:42:20,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 19:42:20,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 19:42:20,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 19:42:20,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 19:42:20,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 19:42:20,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 19:42:20,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 19:42:20,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 19:42:20,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 19:42:20,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 19:42:20,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 19:42:20,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 19:42:20,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 19:42:20,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 19:42:21,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 19:42:21,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 19:42:21,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 19:42:21,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 19:42:21,332 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 19:42:21,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina1f.c [2020-10-26 19:42:21,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a523ea783/c09b20942c0d4bb6b67266b323c4cdf8/FLAG4b128d2f1 [2020-10-26 19:42:22,038 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 19:42:22,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina1f.c [2020-10-26 19:42:22,048 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a523ea783/c09b20942c0d4bb6b67266b323c4cdf8/FLAG4b128d2f1 [2020-10-26 19:42:22,399 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a523ea783/c09b20942c0d4bb6b67266b323c4cdf8 [2020-10-26 19:42:22,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 19:42:22,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 19:42:22,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 19:42:22,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 19:42:22,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 19:42:22,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:42:22" (1/1) ... [2020-10-26 19:42:22,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a38319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22, skipping insertion in model container [2020-10-26 19:42:22,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:42:22" (1/1) ... [2020-10-26 19:42:22,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 19:42:22,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 19:42:22,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:42:22,635 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 19:42:22,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 19:42:22,700 INFO L208 MainTranslator]: Completed translation [2020-10-26 19:42:22,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22 WrapperNode [2020-10-26 19:42:22,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 19:42:22,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 19:42:22,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 19:42:22,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 19:42:22,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22" (1/1) ... [2020-10-26 19:42:22,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22" (1/1) ... [2020-10-26 19:42:22,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22" (1/1) ... [2020-10-26 19:42:22,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22" (1/1) ... [2020-10-26 19:42:22,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22" (1/1) ... [2020-10-26 19:42:22,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22" (1/1) ... [2020-10-26 19:42:22,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22" (1/1) ... [2020-10-26 19:42:22,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 19:42:22,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 19:42:22,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 19:42:22,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 19:42:22,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22" (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 [2020-10-26 19:42:22,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 19:42:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 19:42:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 19:42:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-26 19:42:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-26 19:42:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 19:42:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 19:42:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 19:42:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 19:42:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 19:42:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-26 19:42:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-26 19:42:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 19:42:22,835 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 19:42:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 19:42:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 19:42:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 19:42:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 19:42:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 19:42:22,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 19:42:22,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 19:42:22,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 19:42:23,394 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 19:42:23,394 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-26 19:42:23,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:42:23 BoogieIcfgContainer [2020-10-26 19:42:23,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 19:42:23,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 19:42:23,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 19:42:23,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 19:42:23,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:42:22" (1/3) ... [2020-10-26 19:42:23,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35306858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:42:23, skipping insertion in model container [2020-10-26 19:42:23,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:42:22" (2/3) ... [2020-10-26 19:42:23,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35306858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:42:23, skipping insertion in model container [2020-10-26 19:42:23,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:42:23" (3/3) ... [2020-10-26 19:42:23,409 INFO L111 eAbstractionObserver]: Analyzing ICFG sina1f.c [2020-10-26 19:42:23,422 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 19:42:23,427 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 19:42:23,443 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 19:42:23,473 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 19:42:23,474 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 19:42:23,474 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 19:42:23,474 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 19:42:23,474 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 19:42:23,474 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 19:42:23,474 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 19:42:23,474 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 19:42:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-26 19:42:23,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-26 19:42:23,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:42:23,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 19:42:23,502 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:42:23,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:42:23,509 INFO L82 PathProgramCache]: Analyzing trace with hash -391571351, now seen corresponding path program 1 times [2020-10-26 19:42:23,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:42:23,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228504187] [2020-10-26 19:42:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:42:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:42:23,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:42:23,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:42:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:42:24,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:42:24,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:42:24,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:42:24,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 19:42:24,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 19:42:24,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1200 [2020-10-26 19:42:24,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:42:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-26 19:42:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-26 19:42:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 19:42:24,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 19:42:24,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 19:42:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:42:25,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:42:25,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:42:25,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 19:42:25,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 19:42:25,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 19:42:25,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:42:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 19:42:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:42:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 19:42:25,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:42:25,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-26 19:42:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 19:42:25,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:42:25,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 19:42:25,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 19:42:25,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 19:42:25,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 19:42:25,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 19:42:25,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 19:42:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 19:42:25,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 19:42:25,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 19:42:25,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 19:42:25,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 19:42:25,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228504187] [2020-10-26 19:42:25,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 19:42:25,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 19:42:25,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665060825] [2020-10-26 19:42:25,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 19:42:25,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 19:42:25,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 19:42:25,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 19:42:25,066 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-10-26 19:42:25,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 19:42:25,295 INFO L93 Difference]: Finished difference Result 70 states and 91 transitions. [2020-10-26 19:42:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 19:42:25,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-26 19:42:25,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 19:42:25,305 INFO L225 Difference]: With dead ends: 70 [2020-10-26 19:42:25,306 INFO L226 Difference]: Without dead ends: 33 [2020-10-26 19:42:25,309 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 [2020-10-26 19:42:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-26 19:42:25,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-26 19:42:25,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-26 19:42:25,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2020-10-26 19:42:25,355 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 23 [2020-10-26 19:42:25,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 19:42:25,355 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2020-10-26 19:42:25,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 19:42:25,355 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2020-10-26 19:42:25,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-26 19:42:25,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 19:42:25,357 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] [2020-10-26 19:42:25,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 19:42:25,357 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 19:42:25,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 19:42:25,358 INFO L82 PathProgramCache]: Analyzing trace with hash 385078571, now seen corresponding path program 1 times [2020-10-26 19:42:25,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 19:42:25,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046875556] [2020-10-26 19:42:25,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 19:42:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 19:42:25,381 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-26 19:42:25,381 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 19:42:25,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 19:42:25,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:42:25 BoogieIcfgContainer [2020-10-26 19:42:25,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 19:42:25,405 INFO L168 Benchmark]: Toolchain (without parser) took 2999.75 ms. Allocated memory is still 152.0 MB. Free memory was 127.6 MB in the beginning and 85.7 MB in the end (delta: 41.8 MB). Peak memory consumption was 42.5 MB. Max. memory is 8.0 GB. [2020-10-26 19:42:25,406 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 152.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 19:42:25,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.18 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 117.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-26 19:42:25,407 INFO L168 Benchmark]: Boogie Preprocessor took 41.92 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 115.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-26 19:42:25,408 INFO L168 Benchmark]: RCFGBuilder took 652.78 ms. Allocated memory is still 152.0 MB. Free memory was 115.4 MB in the beginning and 132.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. [2020-10-26 19:42:25,409 INFO L168 Benchmark]: TraceAbstraction took 2001.25 ms. Allocated memory is still 152.0 MB. Free memory was 132.4 MB in the beginning and 85.7 MB in the end (delta: 46.7 MB). Peak memory consumption was 47.2 MB. Max. memory is 8.0 GB. [2020-10-26 19:42:25,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 152.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 293.18 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 117.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.92 ms. Allocated memory is still 152.0 MB. Free memory was 117.2 MB in the beginning and 115.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 652.78 ms. Allocated memory is still 152.0 MB. Free memory was 115.4 MB in the beginning and 132.9 MB in the end (delta: -17.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2001.25 ms. Allocated memory is still 152.0 MB. Free memory was 132.4 MB in the beginning and 85.7 MB in the end (delta: 46.7 MB). Peak memory consumption was 47.2 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] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 [L32] COND TRUE i