/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --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/res2of.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:41:15,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:41:15,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:41:15,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:41:15,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:41:15,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:41:15,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:41:15,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:41:15,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:41:15,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:41:15,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:41:15,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:41:15,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:41:15,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:41:15,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:41:15,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:41:15,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:41:15,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:41:15,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:41:15,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:41:15,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:41:15,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:41:15,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:41:15,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:41:15,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:41:15,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:41:15,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:41:15,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:41:15,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:41:15,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:41:15,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:41:15,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:41:15,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:41:15,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:41:15,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:41:15,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:41:15,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:41:15,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:41:15,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:41:15,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:41:15,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:41:15,864 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 20:41:15,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:41:15,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:41:15,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:41:15,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:41:15,894 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:41:15,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:41:15,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:41:15,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:41:15,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:41:15,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:41:15,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:41:15,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:41:15,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:41:15,896 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:41:15,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:41:15,897 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:41:15,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:41:15,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:41:15,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:41:15,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:41:15,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:41:15,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:41:15,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:41:15,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:41:15,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:41:15,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:41:15,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:41:15,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:41:15,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:41:15,900 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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:41:16,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:41:16,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:41:16,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:41:16,360 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:41:16,360 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:41:16,361 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res2of.c [2020-09-24 20:41:16,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/380d767d4/d1d7c8a02d5e45ff86eac36adca955c3/FLAGbd45b9481 [2020-09-24 20:41:17,021 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:41:17,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res2of.c [2020-09-24 20:41:17,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/380d767d4/d1d7c8a02d5e45ff86eac36adca955c3/FLAGbd45b9481 [2020-09-24 20:41:17,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/380d767d4/d1d7c8a02d5e45ff86eac36adca955c3 [2020-09-24 20:41:17,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:41:17,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:41:17,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:17,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:41:17,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:41:17,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:17" (1/1) ... [2020-09-24 20:41:17,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544d7f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17, skipping insertion in model container [2020-09-24 20:41:17,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:17" (1/1) ... [2020-09-24 20:41:17,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:41:17,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:41:17,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:17,687 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:41:17,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:17,732 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:41:17,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17 WrapperNode [2020-09-24 20:41:17,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:17,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:41:17,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:41:17,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:41:17,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17" (1/1) ... [2020-09-24 20:41:17,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17" (1/1) ... [2020-09-24 20:41:17,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17" (1/1) ... [2020-09-24 20:41:17,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17" (1/1) ... [2020-09-24 20:41:17,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17" (1/1) ... [2020-09-24 20:41:17,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17" (1/1) ... [2020-09-24 20:41:17,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17" (1/1) ... [2020-09-24 20:41:17,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:41:17,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:41:17,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:41:17,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:41:17,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17" (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 20:41:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:41:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:41:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:41:17,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 20:41:17,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:41:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:41:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:41:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:41:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:41:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:41:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:41:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:41:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:41:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:41:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:41:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:41:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:41:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:41:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:41:18,349 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:41:18,349 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-24 20:41:18,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:18 BoogieIcfgContainer [2020-09-24 20:41:18,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:41:18,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:41:18,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:41:18,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:41:18,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:41:17" (1/3) ... [2020-09-24 20:41:18,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236583d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:18, skipping insertion in model container [2020-09-24 20:41:18,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:17" (2/3) ... [2020-09-24 20:41:18,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236583d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:18, skipping insertion in model container [2020-09-24 20:41:18,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:18" (3/3) ... [2020-09-24 20:41:18,370 INFO L109 eAbstractionObserver]: Analyzing ICFG res2of.c [2020-09-24 20:41:18,382 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:41:18,392 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:41:18,413 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:41:18,442 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:41:18,442 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:41:18,442 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:41:18,442 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:41:18,442 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:41:18,442 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:41:18,442 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:41:18,443 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:41:18,469 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-09-24 20:41:18,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 20:41:18,478 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:18,479 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] [2020-09-24 20:41:18,479 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:18,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:18,486 INFO L82 PathProgramCache]: Analyzing trace with hash -386797637, now seen corresponding path program 1 times [2020-09-24 20:41:18,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:18,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286522234] [2020-09-24 20:41:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:18,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:18,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:18,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:19,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:19,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:19,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:19,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:21,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:21,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 20:41:21,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 20:41:21,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2428 [2020-09-24 20:41:21,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:21,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:41:21,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:41:21,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 20:41:21,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:41:21,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:21,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:21,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:21,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:41:21,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:21,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:41:21,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:21,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:21,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:21,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:41:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:21,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:21,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:21,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:41:21,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:21,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:41:21,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:21,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:41:21,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:21,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:41:21,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:21,373 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 20:41:21,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286522234] [2020-09-24 20:41:21,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:41:21,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:41:21,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233508450] [2020-09-24 20:41:21,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:41:21,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:21,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:41:21,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:41:21,409 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 8 states. [2020-09-24 20:41:21,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:21,970 INFO L93 Difference]: Finished difference Result 204 states and 244 transitions. [2020-09-24 20:41:21,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:41:21,972 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-24 20:41:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:21,985 INFO L225 Difference]: With dead ends: 204 [2020-09-24 20:41:21,985 INFO L226 Difference]: Without dead ends: 103 [2020-09-24 20:41:21,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-09-24 20:41:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-24 20:41:22,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 91. [2020-09-24 20:41:22,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-24 20:41:22,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 101 transitions. [2020-09-24 20:41:22,056 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 101 transitions. Word has length 43 [2020-09-24 20:41:22,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:22,056 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 101 transitions. [2020-09-24 20:41:22,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:41:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 101 transitions. [2020-09-24 20:41:22,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-24 20:41:22,059 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:22,059 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, 1] [2020-09-24 20:41:22,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:41:22,060 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:22,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:22,061 INFO L82 PathProgramCache]: Analyzing trace with hash 73707488, now seen corresponding path program 1 times [2020-09-24 20:41:22,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:22,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567703219] [2020-09-24 20:41:22,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:22,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:22,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:23,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:24,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:27,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:27,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-24 20:41:27,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 20:41:27,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 20:41:27,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:41:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:41:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 20:41:27,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:27,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:27,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:27,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:27,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:41:27,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:41:27,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:27,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:27,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:27,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:41:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:27,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:27,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:27,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:41:27,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:27,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:41:27,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:27,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:27,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:27,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:27,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:41:27,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567703219] [2020-09-24 20:41:27,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:41:27,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 20:41:27,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040312955] [2020-09-24 20:41:27,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:41:27,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:27,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:41:27,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:41:27,327 INFO L87 Difference]: Start difference. First operand 91 states and 101 transitions. Second operand 10 states. [2020-09-24 20:41:27,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:27,854 INFO L93 Difference]: Finished difference Result 123 states and 135 transitions. [2020-09-24 20:41:27,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:41:27,854 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-24 20:41:27,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:27,856 INFO L225 Difference]: With dead ends: 123 [2020-09-24 20:41:27,857 INFO L226 Difference]: Without dead ends: 117 [2020-09-24 20:41:27,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:41:27,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-24 20:41:27,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 85. [2020-09-24 20:41:27,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-24 20:41:27,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2020-09-24 20:41:27,870 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 48 [2020-09-24 20:41:27,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:27,870 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2020-09-24 20:41:27,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:41:27,871 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2020-09-24 20:41:27,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 20:41:27,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:27,873 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, 1, 1, 1, 1, 1] [2020-09-24 20:41:27,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:41:27,873 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:27,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:27,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1495217621, now seen corresponding path program 1 times [2020-09-24 20:41:27,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:27,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013186087] [2020-09-24 20:41:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:27,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:27,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:27,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:27,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:28,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:28,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:28,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:28,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:28,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:29,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:32,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:32,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 20:41:32,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 20:41:32,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 20:41:32,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:41:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 20:41:32,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:41:32,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:32,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:32,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:32,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:32,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:41:32,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:41:32,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:32,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:32,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:32,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:41:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:32,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:32,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:32,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:41:32,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:41:32,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:41:32,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1013186087] [2020-09-24 20:41:32,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:41:32,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:41:32,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956508721] [2020-09-24 20:41:32,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:41:32,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:32,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:41:32,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:41:32,975 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand 6 states. [2020-09-24 20:41:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:33,282 INFO L93 Difference]: Finished difference Result 186 states and 207 transitions. [2020-09-24 20:41:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:41:33,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-09-24 20:41:33,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:33,285 INFO L225 Difference]: With dead ends: 186 [2020-09-24 20:41:33,285 INFO L226 Difference]: Without dead ends: 124 [2020-09-24 20:41:33,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 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 20:41:33,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-24 20:41:33,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 87. [2020-09-24 20:41:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-24 20:41:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2020-09-24 20:41:33,296 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 52 [2020-09-24 20:41:33,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:33,296 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2020-09-24 20:41:33,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:41:33,297 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2020-09-24 20:41:33,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-24 20:41:33,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:33,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:41:33,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:41:33,299 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:33,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:33,300 INFO L82 PathProgramCache]: Analyzing trace with hash -875948998, now seen corresponding path program 1 times [2020-09-24 20:41:33,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:33,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338974385] [2020-09-24 20:41:33,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:33,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:33,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:33,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:33,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:33,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:33,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:35,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:35,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:35,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:35,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:36,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:37,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:38,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:38,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:38,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-24 20:41:38,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 20:41:38,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-09-24 20:41:38,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:38,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 20:41:38,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 20:41:38,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 20:41:38,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:38,855 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-09-24 20:41:39,217 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-09-24 20:41:39,497 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 30 [2020-09-24 20:41:40,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:40,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:40,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:40,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:41:40,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:40,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:41:40,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:40,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:40,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:41:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:40,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:40,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:40,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:41:40,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:40,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:41:40,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:41:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:40,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:41:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:40,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 20:41:40,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338974385] [2020-09-24 20:41:40,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:41:40,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-24 20:41:40,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371363837] [2020-09-24 20:41:40,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-24 20:41:40,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:40,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-24 20:41:40,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2020-09-24 20:41:40,165 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 22 states. [2020-09-24 20:41:40,659 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-09-24 20:41:41,161 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-09-24 20:41:41,394 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-09-24 20:41:41,816 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-09-24 20:41:42,911 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-09-24 20:41:43,253 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-09-24 20:41:43,620 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2020-09-24 20:41:43,842 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-09-24 20:41:44,188 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2020-09-24 20:41:44,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:44,420 INFO L93 Difference]: Finished difference Result 139 states and 150 transitions. [2020-09-24 20:41:44,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-24 20:41:44,421 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 67 [2020-09-24 20:41:44,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:44,423 INFO L225 Difference]: With dead ends: 139 [2020-09-24 20:41:44,423 INFO L226 Difference]: Without dead ends: 127 [2020-09-24 20:41:44,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=355, Invalid=1715, Unknown=0, NotChecked=0, Total=2070 [2020-09-24 20:41:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-09-24 20:41:44,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 86. [2020-09-24 20:41:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-24 20:41:44,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2020-09-24 20:41:44,435 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 67 [2020-09-24 20:41:44,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:44,436 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2020-09-24 20:41:44,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-24 20:41:44,436 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2020-09-24 20:41:44,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-24 20:41:44,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:44,438 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, 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 20:41:44,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:41:44,438 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:44,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:44,438 INFO L82 PathProgramCache]: Analyzing trace with hash -849907375, now seen corresponding path program 1 times [2020-09-24 20:41:44,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:44,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358039079] [2020-09-24 20:41:44,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:41:44,467 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:41:44,467 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:41:44,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 20:41:44,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:41:44 BoogieIcfgContainer [2020-09-24 20:41:44,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:41:44,499 INFO L168 Benchmark]: Toolchain (without parser) took 27124.01 ms. Allocated memory was 140.5 MB in the beginning and 396.9 MB in the end (delta: 256.4 MB). Free memory was 103.9 MB in the beginning and 294.2 MB in the end (delta: -190.3 MB). Peak memory consumption was 66.0 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:44,500 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 20:41:44,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.38 ms. Allocated memory is still 140.5 MB. Free memory was 103.3 MB in the beginning and 92.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:44,501 INFO L168 Benchmark]: Boogie Preprocessor took 132.11 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 92.4 MB in the beginning and 181.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:44,502 INFO L168 Benchmark]: RCFGBuilder took 494.45 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 157.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:44,503 INFO L168 Benchmark]: TraceAbstraction took 26134.68 ms. Allocated memory was 203.9 MB in the beginning and 396.9 MB in the end (delta: 192.9 MB). Free memory was 157.3 MB in the beginning and 294.2 MB in the end (delta: -137.0 MB). Peak memory consumption was 56.0 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:44,508 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 353.38 ms. Allocated memory is still 140.5 MB. Free memory was 103.3 MB in the beginning and 92.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.11 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 92.4 MB in the beginning and 181.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 494.45 ms. Allocated memory is still 203.9 MB. Free memory was 181.2 MB in the beginning and 157.3 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26134.68 ms. Allocated memory was 203.9 MB in the beginning and 396.9 MB in the end (delta: 192.9 MB). Free memory was 157.3 MB in the beginning and 294.2 MB in the end (delta: -137.0 MB). Peak memory consumption was 56.0 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] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L28] int *b = malloc(sizeof(int)*N); [L29] int *c = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 [L32] COND TRUE i