/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/res2f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 03:54:40,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 03:54:40,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 03:54:40,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 03:54:40,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 03:54:40,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 03:54:40,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 03:54:40,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 03:54:40,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 03:54:40,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 03:54:40,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 03:54:40,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 03:54:40,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 03:54:40,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 03:54:40,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 03:54:40,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 03:54:40,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 03:54:40,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 03:54:40,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 03:54:40,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 03:54:40,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 03:54:40,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 03:54:40,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 03:54:40,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 03:54:40,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 03:54:40,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 03:54:40,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 03:54:40,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 03:54:40,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 03:54:40,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 03:54:40,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 03:54:40,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 03:54:40,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 03:54:40,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 03:54:40,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 03:54:40,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 03:54:40,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 03:54:40,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 03:54:40,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 03:54:40,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 03:54:40,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 03:54:40,147 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 03:54:40,192 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 03:54:40,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 03:54:40,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 03:54:40,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 03:54:40,196 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 03:54:40,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 03:54:40,196 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 03:54:40,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 03:54:40,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 03:54:40,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 03:54:40,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 03:54:40,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 03:54:40,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 03:54:40,198 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 03:54:40,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 03:54:40,199 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 03:54:40,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 03:54:40,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 03:54:40,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 03:54:40,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 03:54:40,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 03:54:40,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:54:40,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 03:54:40,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 03:54:40,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 03:54:40,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 03:54:40,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 03:54:40,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 03:54:40,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 03:54:40,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 03:54:40,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 03:54:40,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 03:54:40,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 03:54:40,606 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 03:54:40,607 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 03:54:40,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res2f.c [2020-10-29 03:54:40,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4aa7f1c9b/73de45ee3cd34023875b1cc73f56a1aa/FLAG29a48f06e [2020-10-29 03:54:41,332 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 03:54:41,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/res2f.c [2020-10-29 03:54:41,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4aa7f1c9b/73de45ee3cd34023875b1cc73f56a1aa/FLAG29a48f06e [2020-10-29 03:54:41,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4aa7f1c9b/73de45ee3cd34023875b1cc73f56a1aa [2020-10-29 03:54:41,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 03:54:41,716 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 03:54:41,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 03:54:41,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 03:54:41,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 03:54:41,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:54:41" (1/1) ... [2020-10-29 03:54:41,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344291fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41, skipping insertion in model container [2020-10-29 03:54:41,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:54:41" (1/1) ... [2020-10-29 03:54:41,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 03:54:41,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 03:54:41,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:54:41,942 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 03:54:41,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:54:41,991 INFO L208 MainTranslator]: Completed translation [2020-10-29 03:54:41,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41 WrapperNode [2020-10-29 03:54:41,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 03:54:41,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 03:54:41,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 03:54:41,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 03:54:42,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41" (1/1) ... [2020-10-29 03:54:42,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41" (1/1) ... [2020-10-29 03:54:42,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41" (1/1) ... [2020-10-29 03:54:42,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41" (1/1) ... [2020-10-29 03:54:42,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41" (1/1) ... [2020-10-29 03:54:42,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41" (1/1) ... [2020-10-29 03:54:42,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41" (1/1) ... [2020-10-29 03:54:42,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 03:54:42,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 03:54:42,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 03:54:42,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 03:54:42,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41" (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 03:54:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 03:54:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 03:54:42,124 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 03:54:42,124 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 03:54:42,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 03:54:42,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 03:54:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 03:54:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 03:54:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 03:54:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 03:54:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 03:54:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 03:54:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 03:54:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 03:54:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 03:54:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 03:54:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 03:54:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 03:54:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 03:54:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 03:54:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 03:54:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 03:54:42,741 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 03:54:42,741 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-29 03:54:42,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:54:42 BoogieIcfgContainer [2020-10-29 03:54:42,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 03:54:42,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 03:54:42,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 03:54:42,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 03:54:42,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:54:41" (1/3) ... [2020-10-29 03:54:42,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ea22b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:54:42, skipping insertion in model container [2020-10-29 03:54:42,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:54:41" (2/3) ... [2020-10-29 03:54:42,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ea22b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:54:42, skipping insertion in model container [2020-10-29 03:54:42,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:54:42" (3/3) ... [2020-10-29 03:54:42,754 INFO L111 eAbstractionObserver]: Analyzing ICFG res2f.c [2020-10-29 03:54:42,767 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 03:54:42,772 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 03:54:42,787 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 03:54:42,831 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 03:54:42,831 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 03:54:42,831 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 03:54:42,832 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 03:54:42,832 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 03:54:42,833 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 03:54:42,833 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 03:54:42,833 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 03:54:42,855 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-10-29 03:54:42,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-29 03:54:42,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:54:42,868 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] [2020-10-29 03:54:42,868 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:54:42,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:54:42,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1686177906, now seen corresponding path program 1 times [2020-10-29 03:54:42,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:54:42,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415755620] [2020-10-29 03:54:42,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:54:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:54:43,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:43,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:43,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:43,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:43,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:43,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:43,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:44,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:46,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:54:46,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 03:54:46,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 03:54:46,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2948 [2020-10-29 03:54:46,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:54:46,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:54:46,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 03:54:46,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:54:46,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 03:54:46,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 03:54:46,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:54:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:54:46,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:46,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:54:46,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:54:46,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:54:46,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:54:46,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:54:46,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:54:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:54:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:54:46,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:54:46,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:54:46,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 03:54:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:54:46,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:46,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:46,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:54:46,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:54:46,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:54:46,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:54:46,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:54:46,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:54:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:54:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:54:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:54:46,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:54:46,202 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 03:54:46,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415755620] [2020-10-29 03:54:46,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:54:46,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 03:54:46,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860515788] [2020-10-29 03:54:46,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 03:54:46,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:54:46,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 03:54:46,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:54:46,227 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 8 states. [2020-10-29 03:54:46,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:54:46,645 INFO L93 Difference]: Finished difference Result 103 states and 142 transitions. [2020-10-29 03:54:46,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 03:54:46,646 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-10-29 03:54:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:54:46,654 INFO L225 Difference]: With dead ends: 103 [2020-10-29 03:54:46,655 INFO L226 Difference]: Without dead ends: 48 [2020-10-29 03:54:46,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:54:46,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-29 03:54:46,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-29 03:54:46,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-29 03:54:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2020-10-29 03:54:46,701 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 30 [2020-10-29 03:54:46,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:54:46,701 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2020-10-29 03:54:46,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 03:54:46,702 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2020-10-29 03:54:46,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-29 03:54:46,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:54:46,703 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 03:54:46,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 03:54:46,704 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:54:46,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:54:46,705 INFO L82 PathProgramCache]: Analyzing trace with hash 755021574, now seen corresponding path program 1 times [2020-10-29 03:54:46,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:54:46,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708802525] [2020-10-29 03:54:46,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:54:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:54:46,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:46,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:46,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:46,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:46,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:46,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:47,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:47,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:47,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:50,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:54:50,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 03:54:50,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-29 03:54:50,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3284 [2020-10-29 03:54:50,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:54:50,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:54:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 03:54:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 03:54:50,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 03:54:50,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:54:50,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:54:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:54:50,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:50,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:54:50,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:54:50,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:54:50,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 03:54:50,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:54:50,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:54:50,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:54:50,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:54:50,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:54:50,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:54:50,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 03:54:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:54:50,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:54:50,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:54:50,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:54:50,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:54:50,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:54:50,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:54:50,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:54:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:54:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:54:50,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:54:50,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:54:50,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 03:54:50,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708802525] [2020-10-29 03:54:50,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:54:50,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 03:54:50,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51094653] [2020-10-29 03:54:50,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 03:54:50,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:54:50,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 03:54:50,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:54:50,104 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand 5 states. [2020-10-29 03:54:50,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:54:50,269 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2020-10-29 03:54:50,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:54:50,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-29 03:54:50,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:54:50,271 INFO L225 Difference]: With dead ends: 76 [2020-10-29 03:54:50,271 INFO L226 Difference]: Without dead ends: 43 [2020-10-29 03:54:50,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:54:50,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-29 03:54:50,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-10-29 03:54:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-29 03:54:50,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-29 03:54:50,282 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 32 [2020-10-29 03:54:50,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:54:50,282 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-29 03:54:50,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 03:54:50,283 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-29 03:54:50,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 03:54:50,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:54:50,284 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] [2020-10-29 03:54:50,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 03:54:50,285 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:54:50,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:54:50,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1706440668, now seen corresponding path program 1 times [2020-10-29 03:54:50,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:54:50,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624535611] [2020-10-29 03:54:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:54:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 03:54:50,315 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 03:54:50,316 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 03:54:50,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 03:54:50,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 03:54:50 BoogieIcfgContainer [2020-10-29 03:54:50,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 03:54:50,343 INFO L168 Benchmark]: Toolchain (without parser) took 8630.99 ms. Allocated memory was 168.8 MB in the beginning and 203.4 MB in the end (delta: 34.6 MB). Free memory was 144.8 MB in the beginning and 68.5 MB in the end (delta: 76.4 MB). Peak memory consumption was 112.5 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:50,344 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 106.2 MB in the beginning and 106.2 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 03:54:50,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.05 ms. Allocated memory is still 168.8 MB. Free memory was 144.2 MB in the beginning and 133.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:50,346 INFO L168 Benchmark]: Boogie Preprocessor took 45.06 ms. Allocated memory is still 168.8 MB. Free memory was 133.9 MB in the beginning and 132.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:50,346 INFO L168 Benchmark]: RCFGBuilder took 702.86 ms. Allocated memory is still 168.8 MB. Free memory was 132.2 MB in the beginning and 143.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:50,347 INFO L168 Benchmark]: TraceAbstraction took 7593.81 ms. Allocated memory was 168.8 MB in the beginning and 203.4 MB in the end (delta: 34.6 MB). Free memory was 142.5 MB in the beginning and 68.5 MB in the end (delta: 74.0 MB). Peak memory consumption was 109.7 MB. Max. memory is 8.0 GB. [2020-10-29 03:54:50,351 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 125.8 MB. Free memory was 106.2 MB in the beginning and 106.2 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 275.05 ms. Allocated memory is still 168.8 MB. Free memory was 144.2 MB in the beginning and 133.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.06 ms. Allocated memory is still 168.8 MB. Free memory was 133.9 MB in the beginning and 132.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 702.86 ms. Allocated memory is still 168.8 MB. Free memory was 132.2 MB in the beginning and 143.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7593.81 ms. Allocated memory was 168.8 MB in the beginning and 203.4 MB in the end (delta: 34.6 MB). Free memory was 142.5 MB in the beginning and 68.5 MB in the end (delta: 74.0 MB). Peak memory consumption was 109.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L31] int *c = malloc(sizeof(int)*N); [L33] sum[0] = 1 [L34] i=0 [L34] COND TRUE i