/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/condgf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:40:51,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:40:51,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:40:51,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:40:51,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:40:51,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:40:51,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:40:51,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:40:51,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:40:51,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:40:51,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:40:51,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:40:51,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:40:51,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:40:51,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:40:51,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:40:51,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:40:51,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:40:51,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:40:51,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:40:51,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:40:51,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:40:51,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:40:51,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:40:51,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:40:51,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:40:51,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:40:51,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:40:51,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:40:51,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:40:51,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:40:51,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:40:51,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:40:51,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:40:51,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:40:51,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:40:51,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:40:51,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:40:51,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:40:51,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:40:51,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:40:51,179 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 20:40:51,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:40:51,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:40:51,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:40:51,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:40:51,237 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:40:51,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:40:51,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:40:51,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:40:51,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:40:51,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:40:51,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:40:51,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:40:51,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:40:51,240 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:40:51,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:40:51,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:40:51,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:40:51,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:40:51,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:40:51,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:40:51,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:40:51,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:40:51,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:40:51,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:40:51,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:40:51,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:40:51,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:40:51,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:40:51,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:40:51,244 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 20:40:51,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:40:51,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:40:51,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:40:51,737 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:40:51,737 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:40:51,738 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c [2020-09-24 20:40:51,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bf7e6381/14b049d0a8a64fdb99d623a36d9be0ac/FLAGd3e5f59b3 [2020-09-24 20:40:52,423 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:40:52,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/condgf.c [2020-09-24 20:40:52,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bf7e6381/14b049d0a8a64fdb99d623a36d9be0ac/FLAGd3e5f59b3 [2020-09-24 20:40:52,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bf7e6381/14b049d0a8a64fdb99d623a36d9be0ac [2020-09-24 20:40:52,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:40:52,773 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:40:52,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:40:52,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:40:52,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:40:52,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:40:52" (1/1) ... [2020-09-24 20:40:52,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fa4179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:52, skipping insertion in model container [2020-09-24 20:40:52,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:40:52" (1/1) ... [2020-09-24 20:40:52,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:40:52,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:40:53,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:40:53,081 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:40:53,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:40:53,126 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:40:53,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53 WrapperNode [2020-09-24 20:40:53,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:40:53,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:40:53,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:40:53,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:40:53,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53" (1/1) ... [2020-09-24 20:40:53,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53" (1/1) ... [2020-09-24 20:40:53,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53" (1/1) ... [2020-09-24 20:40:53,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53" (1/1) ... [2020-09-24 20:40:53,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53" (1/1) ... [2020-09-24 20:40:53,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53" (1/1) ... [2020-09-24 20:40:53,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53" (1/1) ... [2020-09-24 20:40:53,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:40:53,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:40:53,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:40:53,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:40:53,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53" (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 20:40:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:40:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:40:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:40:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 20:40:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:40:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:40:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:40:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:40:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:40:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:40:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:40:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:40:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:40:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:40:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:40:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:40:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:40:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:40:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:40:53,820 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:40:53,820 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 20:40:53,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:40:53 BoogieIcfgContainer [2020-09-24 20:40:53,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:40:53,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:40:53,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:40:53,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:40:53,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:40:52" (1/3) ... [2020-09-24 20:40:53,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6d5efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:40:53, skipping insertion in model container [2020-09-24 20:40:53,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:40:53" (2/3) ... [2020-09-24 20:40:53,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6d5efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:40:53, skipping insertion in model container [2020-09-24 20:40:53,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:40:53" (3/3) ... [2020-09-24 20:40:53,837 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c [2020-09-24 20:40:53,849 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:40:53,860 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:40:53,883 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:40:53,916 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:40:53,916 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:40:53,916 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:40:53,916 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:40:53,916 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:40:53,916 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:40:53,917 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:40:53,917 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:40:53,939 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-09-24 20:40:53,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 20:40:53,949 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:40:53,951 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] [2020-09-24 20:40:53,951 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:40:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:40:53,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1924334027, now seen corresponding path program 1 times [2020-09-24 20:40:53,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:40:53,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924065173] [2020-09-24 20:40:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:40:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:54,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:54,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:54,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:54,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:54,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:40:54,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 20:40:54,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:40:54,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 829 [2020-09-24 20:40:54,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:40:54,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:40:54,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 20:40:54,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:40:54,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 20:40:55,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:40:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:55,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:55,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:40:55,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:40:55,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:40:55,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:40:55,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:40:55,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:40:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:40:55,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:40:55,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:40:55,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:40:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:55,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:55,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:40:55,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:40:55,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:40:55,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:40:55,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:40:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:40:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:40:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:40:55,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:40:55,090 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 20:40:55,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924065173] [2020-09-24 20:40:55,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:40:55,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:40:55,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325361762] [2020-09-24 20:40:55,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:40:55,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:40:55,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:40:55,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:40:55,126 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 6 states. [2020-09-24 20:40:55,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:40:55,679 INFO L93 Difference]: Finished difference Result 181 states and 218 transitions. [2020-09-24 20:40:55,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:40:55,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 20:40:55,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:40:55,705 INFO L225 Difference]: With dead ends: 181 [2020-09-24 20:40:55,705 INFO L226 Difference]: Without dead ends: 98 [2020-09-24 20:40:55,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 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 20:40:55,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-24 20:40:55,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 70. [2020-09-24 20:40:55,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 20:40:55,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2020-09-24 20:40:55,820 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 35 [2020-09-24 20:40:55,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:40:55,821 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2020-09-24 20:40:55,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:40:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2020-09-24 20:40:55,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-24 20:40:55,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:40:55,827 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] [2020-09-24 20:40:55,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:40:55,828 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:40:55,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:40:55,829 INFO L82 PathProgramCache]: Analyzing trace with hash -269448694, now seen corresponding path program 1 times [2020-09-24 20:40:55,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:40:55,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1939997235] [2020-09-24 20:40:55,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:40:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:40:55,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:56,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:56,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:56,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:57,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:58,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:59,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:40:59,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:00,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:00,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:00,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:00,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:00,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 20:41:00,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 20:41:00,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 20:41:00,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:00,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 20:41:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-24 20:41:00,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 20:41:00,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:01,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:01,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:01,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:01,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:41:01,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:01,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:41:01,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:01,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:01,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:01,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:41:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:01,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:01,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:01,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:41:01,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:01,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:41:01,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:01,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:41:01,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:41:01,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1939997235] [2020-09-24 20:41:01,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:41:01,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-24 20:41:01,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091786182] [2020-09-24 20:41:01,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-24 20:41:01,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:01,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-24 20:41:01,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:41:01,615 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 20 states. [2020-09-24 20:41:02,043 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-09-24 20:41:02,590 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-09-24 20:41:02,775 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-09-24 20:41:03,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:03,834 INFO L93 Difference]: Finished difference Result 113 states and 120 transitions. [2020-09-24 20:41:03,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-24 20:41:03,834 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 59 [2020-09-24 20:41:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:03,837 INFO L225 Difference]: With dead ends: 113 [2020-09-24 20:41:03,837 INFO L226 Difference]: Without dead ends: 98 [2020-09-24 20:41:03,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=319, Invalid=1573, Unknown=0, NotChecked=0, Total=1892 [2020-09-24 20:41:03,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-24 20:41:03,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90. [2020-09-24 20:41:03,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-24 20:41:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions. [2020-09-24 20:41:03,864 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 59 [2020-09-24 20:41:03,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:03,865 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions. [2020-09-24 20:41:03,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-24 20:41:03,865 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions. [2020-09-24 20:41:03,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-24 20:41:03,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:03,873 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:41:03,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:41:03,874 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:03,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:03,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1693383620, now seen corresponding path program 1 times [2020-09-24 20:41:03,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:03,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647298664] [2020-09-24 20:41:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:41:03,904 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:41:03,904 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:41:03,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:41:03,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:41:03 BoogieIcfgContainer [2020-09-24 20:41:03,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:41:03,940 INFO L168 Benchmark]: Toolchain (without parser) took 11169.16 ms. Allocated memory was 140.5 MB in the beginning and 292.0 MB in the end (delta: 151.5 MB). Free memory was 104.2 MB in the beginning and 107.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 148.6 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:03,942 INFO L168 Benchmark]: CDTParser took 0.25 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: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 20:41:03,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.47 ms. Allocated memory is still 140.5 MB. Free memory was 103.6 MB in the beginning and 92.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:03,944 INFO L168 Benchmark]: Boogie Preprocessor took 174.07 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 92.9 MB in the beginning and 182.9 MB in the end (delta: -90.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:03,945 INFO L168 Benchmark]: RCFGBuilder took 524.89 ms. Allocated memory is still 205.5 MB. Free memory was 182.9 MB in the beginning and 161.8 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:03,948 INFO L168 Benchmark]: TraceAbstraction took 10107.45 ms. Allocated memory was 205.5 MB in the beginning and 292.0 MB in the end (delta: 86.5 MB). Free memory was 161.1 MB in the beginning and 107.1 MB in the end (delta: 54.0 MB). Peak memory consumption was 140.5 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:03,961 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 352.47 ms. Allocated memory is still 140.5 MB. Free memory was 103.6 MB in the beginning and 92.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.07 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 92.9 MB in the beginning and 182.9 MB in the end (delta: -90.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 524.89 ms. Allocated memory is still 205.5 MB. Free memory was 182.9 MB in the beginning and 161.8 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10107.45 ms. Allocated memory was 205.5 MB in the beginning and 292.0 MB in the end (delta: 86.5 MB). Free memory was 161.1 MB in the beginning and 107.1 MB in the end (delta: 54.0 MB). Peak memory consumption was 140.5 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); [L29] sum[0] = 0 [L30] i=0 [L30] COND TRUE i