/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/ldv-regression/test07.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:13:56,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:13:56,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:13:56,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:13:56,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:13:56,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:13:56,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:13:56,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:13:56,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:13:56,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:13:56,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:13:56,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:13:56,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:13:56,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:13:56,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:13:56,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:13:56,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:13:56,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:13:56,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:13:56,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:13:56,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:13:56,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:13:56,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:13:56,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:13:56,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:13:56,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:13:56,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:13:56,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:13:56,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:13:56,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:13:56,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:13:56,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:13:56,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:13:56,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:13:56,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:13:56,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:13:56,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:13:56,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:13:56,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:13:56,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:13:56,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:13:56,314 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 [2020-10-27 01:13:56,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:13:56,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:13:56,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:13:56,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:13:56,348 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:13:56,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:13:56,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:13:56,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:13:56,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:13:56,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:13:56,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:13:56,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:13:56,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:13:56,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:13:56,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:13:56,350 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:13:56,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:13:56,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:13:56,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:13:56,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:13:56,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:13:56,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:13:56,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:13:56,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:13:56,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:13:56,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:13:56,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:13:56,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:13:56,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:13:56,353 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:13:56,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:13:56,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:13:56,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:13:56,847 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:13:56,848 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:13:56,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test07.c [2020-10-27 01:13:56,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0698cedef/19ac3913fdb84b3d9d58bdb594c08a17/FLAGe03ffdd44 [2020-10-27 01:13:57,633 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:13:57,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test07.c [2020-10-27 01:13:57,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0698cedef/19ac3913fdb84b3d9d58bdb594c08a17/FLAGe03ffdd44 [2020-10-27 01:13:57,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0698cedef/19ac3913fdb84b3d9d58bdb594c08a17 [2020-10-27 01:13:57,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:13:57,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:13:57,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:13:57,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:13:57,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:13:58,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:13:57" (1/1) ... [2020-10-27 01:13:58,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad199fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58, skipping insertion in model container [2020-10-27 01:13:58,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:13:57" (1/1) ... [2020-10-27 01:13:58,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:13:58,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:13:58,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:13:58,318 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:13:58,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:13:58,368 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:13:58,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58 WrapperNode [2020-10-27 01:13:58,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:13:58,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:13:58,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:13:58,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:13:58,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58" (1/1) ... [2020-10-27 01:13:58,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58" (1/1) ... [2020-10-27 01:13:58,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58" (1/1) ... [2020-10-27 01:13:58,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58" (1/1) ... [2020-10-27 01:13:58,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58" (1/1) ... [2020-10-27 01:13:58,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58" (1/1) ... [2020-10-27 01:13:58,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58" (1/1) ... [2020-10-27 01:13:58,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:13:58,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:13:58,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:13:58,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:13:58,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58" (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 [2020-10-27 01:13:58,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:13:58,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:13:58,505 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:13:58,506 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-27 01:13:58,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:13:58,506 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:13:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:13:58,507 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:13:58,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:13:58,508 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-27 01:13:58,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:13:58,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:13:58,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:13:58,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:13:58,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:13:58,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:13:58,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:13:58,963 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:13:58,963 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 01:13:58,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:13:58 BoogieIcfgContainer [2020-10-27 01:13:58,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:13:58,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:13:58,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:13:58,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:13:58,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:13:57" (1/3) ... [2020-10-27 01:13:58,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607f1885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:13:58, skipping insertion in model container [2020-10-27 01:13:58,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:13:58" (2/3) ... [2020-10-27 01:13:58,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607f1885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:13:58, skipping insertion in model container [2020-10-27 01:13:58,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:13:58" (3/3) ... [2020-10-27 01:13:58,979 INFO L111 eAbstractionObserver]: Analyzing ICFG test07.c [2020-10-27 01:13:58,992 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:13:58,999 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:13:59,014 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:13:59,059 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:13:59,059 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:13:59,059 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:13:59,060 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:13:59,060 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:13:59,060 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:13:59,060 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:13:59,060 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:13:59,087 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-27 01:13:59,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 01:13:59,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:13:59,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:13:59,110 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:13:59,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:13:59,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1827250340, now seen corresponding path program 1 times [2020-10-27 01:13:59,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:13:59,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687974902] [2020-10-27 01:13:59,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:13:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:13:59,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:13:59,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:13:59,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 01:13:59,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:13:59,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-27 01:13:59,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:13:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:13:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:13:59,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:13:59,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:13:59,965 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-27 01:13:59,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:13:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:13:59,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:13:59,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:13:59,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:13:59,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:13:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 01:13:59,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:13:59,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:13:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:13:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:13:59,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:00,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:14:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:00,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:00,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:00,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:14:00,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:00,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 01:14:00,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:14:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:14:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:14:00,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:14:00,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:14:00,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687974902] [2020-10-27 01:14:00,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:14:00,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 01:14:00,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231728803] [2020-10-27 01:14:00,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:14:00,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:14:00,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:14:00,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:14:00,120 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 7 states. [2020-10-27 01:14:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:14:00,329 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-10-27 01:14:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:14:00,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-27 01:14:00,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:14:00,341 INFO L225 Difference]: With dead ends: 34 [2020-10-27 01:14:00,342 INFO L226 Difference]: Without dead ends: 16 [2020-10-27 01:14:00,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:14:00,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-27 01:14:00,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-27 01:14:00,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-27 01:14:00,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-27 01:14:00,390 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-10-27 01:14:00,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:14:00,391 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-27 01:14:00,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:14:00,391 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-27 01:14:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 01:14:00,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:14:00,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:14:00,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:14:00,393 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:14:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:14:00,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1580213275, now seen corresponding path program 1 times [2020-10-27 01:14:00,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:14:00,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783915765] [2020-10-27 01:14:00,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:14:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:00,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:00,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:00,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 01:14:00,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:00,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-27 01:14:00,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:00,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:14:00,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 01:14:00,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 01:14:00,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:14:00,926 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-27 01:14:00,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:14:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:00,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:00,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:00,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:14:00,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 01:14:00,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:14:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:14:00,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:14:00,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:01,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:14:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:01,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:01,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:01,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:14:01,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:01,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 01:14:01,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:01,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:14:01,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 01:14:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 01:14:01,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:14:01,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783915765] [2020-10-27 01:14:01,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:14:01,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 01:14:01,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921891932] [2020-10-27 01:14:01,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:14:01,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:14:01,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:14:01,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:14:01,268 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 8 states. [2020-10-27 01:14:01,518 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-27 01:14:01,777 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-27 01:14:02,128 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2020-10-27 01:14:02,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:14:02,145 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-27 01:14:02,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:14:02,147 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-27 01:14:02,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:14:02,148 INFO L225 Difference]: With dead ends: 16 [2020-10-27 01:14:02,148 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 01:14:02,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:14:02,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 01:14:02,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 01:14:02,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 01:14:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 01:14:02,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-27 01:14:02,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:14:02,151 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 01:14:02,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:14:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 01:14:02,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 01:14:02,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:14:02,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 01:14:02,445 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 01:14:02,445 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 01:14:02,446 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 01:14:02,446 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 01:14:02,446 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:14:02,446 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~p2~0.offset |old(~p2~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= ~p1~0.offset |old(~p1~0.offset)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~p2~0.base |old(~p2~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= ~p1~0.base |old(~p1~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-27 01:14:02,447 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:14:02,447 INFO L274 CegarLoopResult]: For program point L11(lines 11 16) no Hoare annotation was computed. [2020-10-27 01:14:02,447 INFO L274 CegarLoopResult]: For program point fEXIT(lines 9 17) no Hoare annotation was computed. [2020-10-27 01:14:02,449 INFO L270 CegarLoopResult]: At program point fENTRY(lines 9 17) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) 4)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1)) (and (= ~p1~0.offset |~#a~0.offset|) (= |old(~p1~0.base)| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-27 01:14:02,449 INFO L274 CegarLoopResult]: For program point fFINAL(lines 9 17) no Hoare annotation was computed. [2020-10-27 01:14:02,449 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:14:02,450 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (not (= |~#b~0.base| |~#a~0.base|)) [2020-10-27 01:14:02,450 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 01:14:02,450 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:14:02,450 INFO L270 CegarLoopResult]: At program point L32(lines 19 39) the Hoare annotation is: (= |~#a~0.base| |~#b~0.base|) [2020-10-27 01:14:02,450 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-10-27 01:14:02,450 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 19 39) the Hoare annotation is: (or (and (= ~p2~0.base |old(~p2~0.base)|) (= |old(~p2~0.offset)| ~p2~0.offset) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-27 01:14:02,451 INFO L270 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (or (and (= |~#a~0.base| ~p1~0.base) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) 4) (= ~p1~0.offset |~#a~0.offset|) (= (select (select |#memory_int| ~p2~0.base) ~p2~0.offset) 1)) (= |~#b~0.base| |~#a~0.base|)) [2020-10-27 01:14:02,451 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 19 39) no Hoare annotation was computed. [2020-10-27 01:14:02,451 INFO L274 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-10-27 01:14:02,451 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 19 39) no Hoare annotation was computed. [2020-10-27 01:14:02,451 INFO L274 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-27 01:14:02,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:14:02 BoogieIcfgContainer [2020-10-27 01:14:02,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:14:02,479 INFO L168 Benchmark]: Toolchain (without parser) took 4488.13 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.8 MB in the beginning and 120.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 37.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:02,480 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 123.0 MB in the end (delta: 105.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:14:02,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.63 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:02,483 INFO L168 Benchmark]: Boogie Preprocessor took 40.08 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 115.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:02,485 INFO L168 Benchmark]: RCFGBuilder took 554.90 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 100.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:02,486 INFO L168 Benchmark]: TraceAbstraction took 3503.92 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.4 MB in the beginning and 120.4 MB in the end (delta: -20.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:02,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 123.0 MB in the end (delta: 105.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 375.63 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.08 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 115.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 554.90 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 100.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3503.92 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.4 MB in the beginning and 120.4 MB in the end (delta: -20.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: a == b - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 7 SDslu, 47 SDs, 0 SdLazy, 82 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 141 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 122 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 4074 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...