/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/s52if.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 03:57:47,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 03:57:47,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 03:57:47,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 03:57:47,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 03:57:47,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 03:57:47,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 03:57:47,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 03:57:47,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 03:57:47,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 03:57:47,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 03:57:47,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 03:57:47,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 03:57:47,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 03:57:47,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 03:57:47,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 03:57:47,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 03:57:47,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 03:57:47,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 03:57:47,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 03:57:47,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 03:57:47,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 03:57:47,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 03:57:47,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 03:57:47,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 03:57:47,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 03:57:47,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 03:57:47,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 03:57:47,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 03:57:47,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 03:57:47,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 03:57:47,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 03:57:47,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 03:57:47,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 03:57:47,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 03:57:47,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 03:57:47,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 03:57:47,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 03:57:47,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 03:57:47,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 03:57:47,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 03:57:47,393 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 [2020-10-29 03:57:47,452 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 03:57:47,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 03:57:47,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 03:57:47,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 03:57:47,459 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 03:57:47,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 03:57:47,459 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 03:57:47,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 03:57:47,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 03:57:47,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 03:57:47,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 03:57:47,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 03:57:47,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 03:57:47,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 03:57:47,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 03:57:47,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 03:57:47,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 03:57:47,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 03:57:47,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 03:57:47,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 03:57:47,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 03:57:47,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:57:47,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 03:57:47,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 03:57:47,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 03:57:47,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 03:57:47,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 03:57:47,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 03:57:47,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 03:57:47,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 03:57:47,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 03:57:47,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 03:57:47,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 03:57:47,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 03:57:47,952 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 03:57:47,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s52if.c [2020-10-29 03:57:48,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44d6b02b0/f72f00c3041f45f1ac34eb08c82e6975/FLAG6db4f5f48 [2020-10-29 03:57:48,678 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 03:57:48,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s52if.c [2020-10-29 03:57:48,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44d6b02b0/f72f00c3041f45f1ac34eb08c82e6975/FLAG6db4f5f48 [2020-10-29 03:57:49,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/44d6b02b0/f72f00c3041f45f1ac34eb08c82e6975 [2020-10-29 03:57:49,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 03:57:49,022 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 03:57:49,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 03:57:49,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 03:57:49,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 03:57:49,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:57:49" (1/1) ... [2020-10-29 03:57:49,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad0719d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49, skipping insertion in model container [2020-10-29 03:57:49,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:57:49" (1/1) ... [2020-10-29 03:57:49,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 03:57:49,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 03:57:49,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:57:49,247 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 03:57:49,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:57:49,295 INFO L208 MainTranslator]: Completed translation [2020-10-29 03:57:49,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49 WrapperNode [2020-10-29 03:57:49,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 03:57:49,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 03:57:49,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 03:57:49,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 03:57:49,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49" (1/1) ... [2020-10-29 03:57:49,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49" (1/1) ... [2020-10-29 03:57:49,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49" (1/1) ... [2020-10-29 03:57:49,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49" (1/1) ... [2020-10-29 03:57:49,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49" (1/1) ... [2020-10-29 03:57:49,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49" (1/1) ... [2020-10-29 03:57:49,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49" (1/1) ... [2020-10-29 03:57:49,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 03:57:49,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 03:57:49,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 03:57:49,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 03:57:49,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49" (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 [2020-10-29 03:57:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 03:57:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 03:57:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 03:57:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 03:57:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 03:57:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 03:57:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 03:57:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 03:57:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 03:57:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 03:57:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 03:57:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 03:57:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 03:57:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 03:57:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 03:57:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 03:57:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 03:57:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 03:57:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 03:57:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 03:57:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 03:57:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 03:57:49,780 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 03:57:49,780 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 03:57:49,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:57:49 BoogieIcfgContainer [2020-10-29 03:57:49,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 03:57:49,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 03:57:49,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 03:57:49,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 03:57:49,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:57:49" (1/3) ... [2020-10-29 03:57:49,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab34777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:57:49, skipping insertion in model container [2020-10-29 03:57:49,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:57:49" (2/3) ... [2020-10-29 03:57:49,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab34777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:57:49, skipping insertion in model container [2020-10-29 03:57:49,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:57:49" (3/3) ... [2020-10-29 03:57:49,792 INFO L111 eAbstractionObserver]: Analyzing ICFG s52if.c [2020-10-29 03:57:49,805 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 03:57:49,810 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 03:57:49,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 03:57:49,858 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 03:57:49,858 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 03:57:49,859 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 03:57:49,859 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 03:57:49,859 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 03:57:49,859 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 03:57:49,859 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 03:57:49,859 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 03:57:49,894 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-29 03:57:49,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-29 03:57:49,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:57:49,901 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] [2020-10-29 03:57:49,901 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:57:49,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:57:49,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1702539242, now seen corresponding path program 1 times [2020-10-29 03:57:49,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:57:49,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110267147] [2020-10-29 03:57:49,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:57:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:50,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:50,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:50,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:50,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:50,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:50,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 03:57:50,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 03:57:50,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 616 [2020-10-29 03:57:50,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:50,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 03:57:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:57:50,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 03:57:50,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 03:57:50,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:57:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:50,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:50,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:50,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:57:50,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:57:50,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 03:57:50,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:50,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:57:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:57:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:57:50,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:57:50,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 03:57:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:50,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:51,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:51,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:51,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:57:51,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:57:51,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 03:57:51,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:51,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:57:51,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:57:51,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:57:51,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 03:57:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:57:51,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110267147] [2020-10-29 03:57:51,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:57:51,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 03:57:51,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54849735] [2020-10-29 03:57:51,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 03:57:51,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:57:51,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 03:57:51,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:57:51,070 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 5 states. [2020-10-29 03:57:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:57:51,362 INFO L93 Difference]: Finished difference Result 79 states and 106 transitions. [2020-10-29 03:57:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:57:51,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-29 03:57:51,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:57:51,373 INFO L225 Difference]: With dead ends: 79 [2020-10-29 03:57:51,374 INFO L226 Difference]: Without dead ends: 38 [2020-10-29 03:57:51,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:57:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-29 03:57:51,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 33. [2020-10-29 03:57:51,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 03:57:51,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-29 03:57:51,449 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2020-10-29 03:57:51,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:57:51,450 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-29 03:57:51,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 03:57:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-29 03:57:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-29 03:57:51,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:57:51,452 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] [2020-10-29 03:57:51,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 03:57:51,453 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:57:51,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:57:51,454 INFO L82 PathProgramCache]: Analyzing trace with hash -856996485, now seen corresponding path program 1 times [2020-10-29 03:57:51,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:57:51,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944403200] [2020-10-29 03:57:51,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:57:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:51,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:51,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:51,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:52,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:52,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:53,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:53,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:53,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:54,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:56,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:56,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 03:57:56,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 03:57:56,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 03:57:56,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:56,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:56,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 03:57:56,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 03:57:56,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 03:57:56,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:57:56,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:57:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:56,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:56,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:56,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:57:56,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:57:56,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:57:56,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:56,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:56,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:57:56,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:57:56,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:57:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:57:56,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 03:57:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:57:56,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:57:56,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:57:56,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:57:56,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:57:56,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:57:56,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:57:56,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:57:56,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:57:56,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:57:56,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:57:56,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:57:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 03:57:56,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944403200] [2020-10-29 03:57:56,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:57:56,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:57:56,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394098483] [2020-10-29 03:57:56,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:57:56,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:57:56,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:57:56,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:57:56,946 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 12 states. [2020-10-29 03:57:57,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:57:57,735 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2020-10-29 03:57:57,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 03:57:57,736 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2020-10-29 03:57:57,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:57:57,740 INFO L225 Difference]: With dead ends: 62 [2020-10-29 03:57:57,740 INFO L226 Difference]: Without dead ends: 55 [2020-10-29 03:57:57,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2020-10-29 03:57:57,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-29 03:57:57,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2020-10-29 03:57:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-29 03:57:57,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2020-10-29 03:57:57,755 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 32 [2020-10-29 03:57:57,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:57:57,756 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2020-10-29 03:57:57,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:57:57,756 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2020-10-29 03:57:57,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-29 03:57:57,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:57:57,757 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] [2020-10-29 03:57:57,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 03:57:57,758 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:57:57,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:57:57,760 INFO L82 PathProgramCache]: Analyzing trace with hash -176938115, now seen corresponding path program 1 times [2020-10-29 03:57:57,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:57:57,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007226217] [2020-10-29 03:57:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:57:57,792 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-29 03:57:57,792 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-29 03:57:57,793 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 03:57:57,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 03:57:57,817 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-29 03:57:57,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 03:57:57 BoogieIcfgContainer [2020-10-29 03:57:57,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 03:57:57,821 INFO L168 Benchmark]: Toolchain (without parser) took 8802.46 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 126.1 MB in the beginning and 83.7 MB in the end (delta: 42.4 MB). Peak memory consumption was 115.4 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:57,822 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 03:57:57,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.64 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 115.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:57,824 INFO L168 Benchmark]: Boogie Preprocessor took 46.07 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 113.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:57,825 INFO L168 Benchmark]: RCFGBuilder took 439.11 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 130.7 MB in the end (delta: -17.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:57,826 INFO L168 Benchmark]: TraceAbstraction took 8032.94 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 130.1 MB in the beginning and 83.7 MB in the end (delta: 46.4 MB). Peak memory consumption was 118.8 MB. Max. memory is 8.0 GB. [2020-10-29 03:57:57,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 272.64 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 115.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.07 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 113.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 439.11 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 130.7 MB in the end (delta: -17.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8032.94 ms. Allocated memory was 151.0 MB in the beginning and 223.3 MB in the end (delta: 72.4 MB). Free memory was 130.1 MB in the beginning and 83.7 MB in the end (delta: 46.4 MB). Peak memory consumption was 118.8 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] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i