/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-cav19/array_tiling_poly6.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 18:58:27,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 18:58:27,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 18:58:27,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 18:58:27,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 18:58:27,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 18:58:27,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 18:58:27,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 18:58:27,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 18:58:27,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 18:58:27,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 18:58:27,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 18:58:27,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 18:58:27,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 18:58:27,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 18:58:27,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 18:58:27,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 18:58:27,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 18:58:27,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 18:58:27,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 18:58:27,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 18:58:27,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 18:58:27,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 18:58:27,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 18:58:27,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 18:58:27,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 18:58:27,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 18:58:27,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 18:58:27,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 18:58:27,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 18:58:27,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 18:58:27,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 18:58:27,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 18:58:27,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 18:58:27,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 18:58:27,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 18:58:27,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 18:58:27,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 18:58:27,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 18:58:27,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 18:58:27,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 18:58:27,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 18:58:27,256 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 18:58:27,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 18:58:27,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 18:58:27,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 18:58:27,258 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 18:58:27,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 18:58:27,258 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 18:58:27,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 18:58:27,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 18:58:27,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 18:58:27,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 18:58:27,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 18:58:27,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 18:58:27,260 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 18:58:27,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 18:58:27,260 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 18:58:27,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 18:58:27,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 18:58:27,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 18:58:27,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 18:58:27,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 18:58:27,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 18:58:27,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 18:58:27,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 18:58:27,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 18:58:27,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 18:58:27,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 18:58:27,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 18:58:27,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 18:58:27,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 18:58:27,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 18:58:27,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 18:58:27,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 18:58:27,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 18:58:27,678 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 18:58:27,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-cav19/array_tiling_poly6.c [2020-10-26 18:58:27,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddd715ea3/f0b996e59bcf4a429d371e3ac79ad835/FLAGd7fde52f0 [2020-10-26 18:58:28,510 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 18:58:28,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-cav19/array_tiling_poly6.c [2020-10-26 18:58:28,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddd715ea3/f0b996e59bcf4a429d371e3ac79ad835/FLAGd7fde52f0 [2020-10-26 18:58:28,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddd715ea3/f0b996e59bcf4a429d371e3ac79ad835 [2020-10-26 18:58:28,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 18:58:28,949 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 18:58:28,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 18:58:28,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 18:58:28,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 18:58:28,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:58:28" (1/1) ... [2020-10-26 18:58:28,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5b3d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:28, skipping insertion in model container [2020-10-26 18:58:28,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:58:28" (1/1) ... [2020-10-26 18:58:28,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 18:58:28,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 18:58:29,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 18:58:29,164 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 18:58:29,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 18:58:29,202 INFO L208 MainTranslator]: Completed translation [2020-10-26 18:58:29,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29 WrapperNode [2020-10-26 18:58:29,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 18:58:29,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 18:58:29,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 18:58:29,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 18:58:29,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... [2020-10-26 18:58:29,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 18:58:29,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 18:58:29,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 18:58:29,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 18:58:29,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 18:58:29,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 18:58:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 18:58:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 18:58:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-26 18:58:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-26 18:58:29,399 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 18:58:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 18:58:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 18:58:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 18:58:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 18:58:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-26 18:58:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-26 18:58:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 18:58:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 18:58:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 18:58:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 18:58:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 18:58:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 18:58:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 18:58:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 18:58:29,753 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 18:58:29,753 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-26 18:58:29,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:58:29 BoogieIcfgContainer [2020-10-26 18:58:29,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 18:58:29,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 18:58:29,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 18:58:29,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 18:58:29,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 06:58:28" (1/3) ... [2020-10-26 18:58:29,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbbf51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:58:29, skipping insertion in model container [2020-10-26 18:58:29,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:58:29" (2/3) ... [2020-10-26 18:58:29,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dbbf51c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 06:58:29, skipping insertion in model container [2020-10-26 18:58:29,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:58:29" (3/3) ... [2020-10-26 18:58:29,773 INFO L111 eAbstractionObserver]: Analyzing ICFG array_tiling_poly6.c [2020-10-26 18:58:29,794 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 18:58:29,800 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 18:58:29,820 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 18:58:29,868 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 18:58:29,868 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 18:58:29,869 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 18:58:29,869 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 18:58:29,869 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 18:58:29,869 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 18:58:29,869 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 18:58:29,870 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 18:58:29,896 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-26 18:58:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 18:58:29,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:29,908 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] [2020-10-26 18:58:29,908 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:29,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:29,920 INFO L82 PathProgramCache]: Analyzing trace with hash 2128351604, now seen corresponding path program 1 times [2020-10-26 18:58:29,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:29,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146957288] [2020-10-26 18:58:29,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:30,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:30,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:30,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:30,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:30,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:30,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 18:58:30,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 18:58:30,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 824 [2020-10-26 18:58:30,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-26 18:58:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:30,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 18:58:31,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:31,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:31,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:31,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:31,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:31,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 18:58:31,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:31,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:31,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:31,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-26 18:58:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:31,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:31,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:31,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:31,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:31,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 18:58:31,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-26 18:58:31,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:31,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 18:58:31,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146957288] [2020-10-26 18:58:31,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 18:58:31,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 18:58:31,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274151091] [2020-10-26 18:58:31,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 18:58:31,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:31,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 18:58:31,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 18:58:31,133 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-10-26 18:58:31,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:31,269 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2020-10-26 18:58:31,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 18:58:31,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-26 18:58:31,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:31,290 INFO L225 Difference]: With dead ends: 62 [2020-10-26 18:58:31,290 INFO L226 Difference]: Without dead ends: 29 [2020-10-26 18:58:31,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 18:58:31,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-26 18:58:31,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-26 18:58:31,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-26 18:58:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-10-26 18:58:31,363 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2020-10-26 18:58:31,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:31,365 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-10-26 18:58:31,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 18:58:31,365 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-10-26 18:58:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 18:58:31,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:31,369 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] [2020-10-26 18:58:31,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 18:58:31,370 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:31,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:31,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1117234354, now seen corresponding path program 1 times [2020-10-26 18:58:31,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:31,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093512881] [2020-10-26 18:58:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:31,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:31,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:31,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:31,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:32,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:32,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 18:58:32,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 18:58:32,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 649 [2020-10-26 18:58:32,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:32,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 18:58:32,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 18:58:32,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 18:58:32,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:32,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 18:58:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:32,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:32,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:32,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 18:58:32,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:32,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 18:58:32,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:32,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 18:58:32,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:32,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 18:58:32,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:32,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-26 18:58:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 18:58:32,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 18:58:32,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 18:58:32,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 18:58:32,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 18:58:32,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 18:58:32,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 18:58:32,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 18:58:32,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 18:58:32,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-26 18:58:32,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 18:58:32,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 18:58:32,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093512881] [2020-10-26 18:58:32,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 18:58:32,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 18:58:32,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242357528] [2020-10-26 18:58:32,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 18:58:32,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 18:58:32,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 18:58:32,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-26 18:58:32,226 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 7 states. [2020-10-26 18:58:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 18:58:32,802 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2020-10-26 18:58:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 18:58:32,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-26 18:58:32,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 18:58:32,805 INFO L225 Difference]: With dead ends: 52 [2020-10-26 18:58:32,805 INFO L226 Difference]: Without dead ends: 37 [2020-10-26 18:58:32,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-26 18:58:32,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-26 18:58:32,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2020-10-26 18:58:32,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-26 18:58:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-10-26 18:58:32,820 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 22 [2020-10-26 18:58:32,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 18:58:32,820 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-10-26 18:58:32,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 18:58:32,821 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-10-26 18:58:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-26 18:58:32,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 18:58:32,822 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] [2020-10-26 18:58:32,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 18:58:32,822 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 18:58:32,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 18:58:32,823 INFO L82 PathProgramCache]: Analyzing trace with hash -110947914, now seen corresponding path program 1 times [2020-10-26 18:58:32,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 18:58:32,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875202857] [2020-10-26 18:58:32,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 18:58:32,836 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-26 18:58:32,837 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-26 18:58:32,837 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 18:58:32,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 18:58:32,856 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-26 18:58:32,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 06:58:32 BoogieIcfgContainer [2020-10-26 18:58:32,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 18:58:32,860 INFO L168 Benchmark]: Toolchain (without parser) took 3948.94 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 106.1 MB in the beginning and 116.6 MB in the end (delta: -10.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 8.0 GB. [2020-10-26 18:58:32,861 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 18:58:32,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.96 ms. Allocated memory is still 151.0 MB. Free memory was 105.5 MB in the beginning and 96.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-26 18:58:32,863 INFO L168 Benchmark]: Boogie Preprocessor took 39.87 ms. Allocated memory is still 151.0 MB. Free memory was 96.0 MB in the beginning and 94.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-26 18:58:32,864 INFO L168 Benchmark]: RCFGBuilder took 510.70 ms. Allocated memory is still 151.0 MB. Free memory was 94.3 MB in the beginning and 118.9 MB in the end (delta: -24.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. [2020-10-26 18:58:32,865 INFO L168 Benchmark]: TraceAbstraction took 3100.06 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 118.6 MB in the beginning and 116.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 8.0 GB. [2020-10-26 18:58:32,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 151.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 251.96 ms. Allocated memory is still 151.0 MB. Free memory was 105.5 MB in the beginning and 96.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.87 ms. Allocated memory is still 151.0 MB. Free memory was 96.0 MB in the beginning and 94.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 510.70 ms. Allocated memory is still 151.0 MB. Free memory was 94.3 MB in the beginning and 118.9 MB in the end (delta: -24.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3100.06 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 118.6 MB in the beginning and 116.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 33.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L12] int S=__VERIFIER_nondet_int(); [L13] CALL assume_abort_if_not(S>1) [L6] COND FALSE !(!cond) [L13] RET assume_abort_if_not(S>1) [L14] int i; [L15] int a[S]; [L17] i=0 [L17] COND TRUE i