/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:20:02,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:20:02,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:20:02,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 00:20:02,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 00:20:02,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 00:20:02,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 00:20:02,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 00:20:02,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 00:20:02,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 00:20:02,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 00:20:02,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 00:20:02,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 00:20:02,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 00:20:02,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 00:20:02,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 00:20:02,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 00:20:02,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 00:20:02,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 00:20:02,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 00:20:02,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 00:20:02,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 00:20:02,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 00:20:02,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 00:20:02,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 00:20:02,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 00:20:02,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 00:20:02,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 00:20:02,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 00:20:02,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 00:20:02,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 00:20:02,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 00:20:02,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 00:20:02,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 00:20:02,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 00:20:02,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 00:20:02,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 00:20:02,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 00:20:02,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 00:20:02,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 00:20:02,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 00:20:02,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:20:02,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:20:02,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:20:02,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:20:02,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:20:02,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:20:02,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:20:02,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:20:02,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:20:02,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:20:02,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:20:02,398 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:20:02,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:20:02,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:20:02,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:20:02,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:20:02,400 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:20:02,400 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:20:02,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:20:02,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:20:02,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:20:02,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:20:02,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:20:02,401 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:20:02,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:20:02,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:20:02,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:20:02,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:20:02,813 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:20:02,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2021-02-24 00:20:02,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b39413d5/a8583a91b74f49cdb7cc81e46d0eb5fa/FLAGe7822c44b [2021-02-24 00:20:03,577 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:20:03,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2021-02-24 00:20:03,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b39413d5/a8583a91b74f49cdb7cc81e46d0eb5fa/FLAGe7822c44b [2021-02-24 00:20:03,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b39413d5/a8583a91b74f49cdb7cc81e46d0eb5fa [2021-02-24 00:20:03,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:20:03,933 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:20:03,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:20:03,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:20:03,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:20:03,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:20:03" (1/1) ... [2021-02-24 00:20:03,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3aec97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:03, skipping insertion in model container [2021-02-24 00:20:03,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:20:03" (1/1) ... [2021-02-24 00:20:03,951 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:20:03,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:20:04,135 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2021-02-24 00:20:04,141 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2021-02-24 00:20:04,144 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2021-02-24 00:20:04,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:20:04,159 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:20:04,180 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2021-02-24 00:20:04,182 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2021-02-24 00:20:04,184 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2021-02-24 00:20:04,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:20:04,204 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:20:04,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04 WrapperNode [2021-02-24 00:20:04,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:20:04,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:20:04,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:20:04,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:20:04,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04" (1/1) ... [2021-02-24 00:20:04,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04" (1/1) ... [2021-02-24 00:20:04,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04" (1/1) ... [2021-02-24 00:20:04,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04" (1/1) ... [2021-02-24 00:20:04,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04" (1/1) ... [2021-02-24 00:20:04,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04" (1/1) ... [2021-02-24 00:20:04,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04" (1/1) ... [2021-02-24 00:20:04,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:20:04,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:20:04,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:20:04,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:20:04,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-02-24 00:20:04,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:20:04,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:20:04,376 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:20:04,376 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 00:20:04,376 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:20:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:20:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:20:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:20:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:20:04,377 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 00:20:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:20:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 00:20:04,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:20:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:20:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:20:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:20:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:20:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:20:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:20:04,706 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:20:04,707 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 00:20:04,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:20:04 BoogieIcfgContainer [2021-02-24 00:20:04,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:20:04,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:20:04,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:20:04,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:20:04,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:20:03" (1/3) ... [2021-02-24 00:20:04,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b0daaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:20:04, skipping insertion in model container [2021-02-24 00:20:04,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:20:04" (2/3) ... [2021-02-24 00:20:04,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b0daaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:20:04, skipping insertion in model container [2021-02-24 00:20:04,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:20:04" (3/3) ... [2021-02-24 00:20:04,740 INFO L111 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2021-02-24 00:20:04,756 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:20:04,763 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-02-24 00:20:04,785 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-02-24 00:20:04,830 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:20:04,831 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:20:04,831 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:20:04,831 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:20:04,831 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:20:04,831 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:20:04,832 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:20:04,832 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:20:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2021-02-24 00:20:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 00:20:04,883 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:20:04,884 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] [2021-02-24 00:20:04,884 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:20:04,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:20:04,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1800337945, now seen corresponding path program 1 times [2021-02-24 00:20:04,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:20:04,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288450673] [2021-02-24 00:20:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:20:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:20:05,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:05,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:05,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:05,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:05,258 WARN L141 QuantifierPusher]: treesize reduction 14, result has 17.6 percent of original size [2021-02-24 00:20:05,259 WARN L147 QuantifierPusher]: treesize reduction 14, result has 17.6 percent of original size 3 [2021-02-24 00:20:05,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:05,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:20:05,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:05,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:20:05,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:05,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:05,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:20:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:20:05,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:05,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:20:05,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288450673] [2021-02-24 00:20:05,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:20:05,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 00:20:05,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270181479] [2021-02-24 00:20:05,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:20:05,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:20:05,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:20:05,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:20:05,470 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 6 states. [2021-02-24 00:20:05,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:20:05,927 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-02-24 00:20:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 00:20:05,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-02-24 00:20:05,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:20:05,954 INFO L225 Difference]: With dead ends: 69 [2021-02-24 00:20:05,954 INFO L226 Difference]: Without dead ends: 51 [2021-02-24 00:20:05,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-02-24 00:20:05,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-02-24 00:20:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-02-24 00:20:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-02-24 00:20:06,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2021-02-24 00:20:06,010 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 32 [2021-02-24 00:20:06,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:20:06,011 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2021-02-24 00:20:06,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:20:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2021-02-24 00:20:06,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-24 00:20:06,013 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:20:06,013 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] [2021-02-24 00:20:06,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:20:06,014 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:20:06,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:20:06,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1563411197, now seen corresponding path program 1 times [2021-02-24 00:20:06,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:20:06,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157005671] [2021-02-24 00:20:06,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:20:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:20:06,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:06,099 WARN L141 QuantifierPusher]: treesize reduction 5, result has 50.0 percent of original size [2021-02-24 00:20:06,100 WARN L147 QuantifierPusher]: treesize reduction 5, result has 50.0 percent of original size 5 [2021-02-24 00:20:06,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:20:06,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:20:06,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:06,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:20:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:20:06,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:06,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:20:06,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157005671] [2021-02-24 00:20:06,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:20:06,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 00:20:06,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360908470] [2021-02-24 00:20:06,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 00:20:06,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:20:06,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 00:20:06,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 00:20:06,195 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 6 states. [2021-02-24 00:20:06,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:20:06,513 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2021-02-24 00:20:06,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 00:20:06,514 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2021-02-24 00:20:06,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:20:06,520 INFO L225 Difference]: With dead ends: 54 [2021-02-24 00:20:06,523 INFO L226 Difference]: Without dead ends: 52 [2021-02-24 00:20:06,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:20:06,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-02-24 00:20:06,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2021-02-24 00:20:06,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-02-24 00:20:06,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2021-02-24 00:20:06,563 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 37 [2021-02-24 00:20:06,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:20:06,564 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2021-02-24 00:20:06,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 00:20:06,564 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2021-02-24 00:20:06,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-24 00:20:06,570 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:20:06,570 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] [2021-02-24 00:20:06,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:20:06,570 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:20:06,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:20:06,571 INFO L82 PathProgramCache]: Analyzing trace with hash 593474903, now seen corresponding path program 1 times [2021-02-24 00:20:06,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:20:06,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784698309] [2021-02-24 00:20:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:20:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:20:06,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:06,640 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-24 00:20:06,641 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-24 00:20:06,654 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-02-24 00:20:06,655 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size 19 [2021-02-24 00:20:06,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 00:20:06,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:20:06,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:20:06,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:06,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:20:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:20:06,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:20:06,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:20:06,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:20:06,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784698309] [2021-02-24 00:20:06,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:20:06,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 00:20:06,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991409704] [2021-02-24 00:20:06,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 00:20:06,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:20:06,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 00:20:06,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-24 00:20:06,769 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 8 states. [2021-02-24 00:20:07,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:20:07,563 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2021-02-24 00:20:07,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 00:20:07,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2021-02-24 00:20:07,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:20:07,564 INFO L225 Difference]: With dead ends: 80 [2021-02-24 00:20:07,564 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:20:07,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-02-24 00:20:07,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:20:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:20:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:20:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:20:07,566 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2021-02-24 00:20:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:20:07,567 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:20:07,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 00:20:07,567 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:20:07,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:20:07,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 00:20:07,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:20:09,048 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 33 [2021-02-24 00:20:09,253 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 33 [2021-02-24 00:20:09,461 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2021-02-24 00:20:09,461 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2021-02-24 00:20:09,462 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2021-02-24 00:20:09,462 INFO L192 CegarLoopUtils]: At program point L4-3(line 4) the Hoare annotation is: true [2021-02-24 00:20:09,462 INFO L192 CegarLoopUtils]: At program point L4-4(line 4) the Hoare annotation is: true [2021-02-24 00:20:09,462 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:20:09,462 INFO L192 CegarLoopUtils]: At program point L4-5(line 4) the Hoare annotation is: true [2021-02-24 00:20:09,462 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:20:09,462 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:20:09,462 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-24 00:20:09,463 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~__return_100~0 |old(~__return_100~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-24 00:20:09,463 INFO L192 CegarLoopUtils]: At program point L4(line 4) the Hoare annotation is: true [2021-02-24 00:20:09,463 INFO L192 CegarLoopUtils]: At program point L4-1(line 4) the Hoare annotation is: true [2021-02-24 00:20:09,463 INFO L192 CegarLoopUtils]: At program point L4-2(line 4) the Hoare annotation is: true [2021-02-24 00:20:09,463 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:20:09,463 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:20:09,463 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:20:09,463 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:20:09,463 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:20:09,464 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2021-02-24 00:20:09,464 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-02-24 00:20:09,464 INFO L189 CegarLoopUtils]: For program point L7-1(line 7) no Hoare annotation was computed. [2021-02-24 00:20:09,464 INFO L189 CegarLoopUtils]: For program point L7-3(lines 6 8) no Hoare annotation was computed. [2021-02-24 00:20:09,464 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2021-02-24 00:20:09,464 INFO L185 CegarLoopUtils]: At program point L64(line 64) the Hoare annotation is: false [2021-02-24 00:20:09,464 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (= main_~__tmp_1~0 1)) [2021-02-24 00:20:09,465 INFO L185 CegarLoopUtils]: At program point L60(line 60) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__tmp_2~0 0)) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (not (= main_~__tmp_3~0 0)) (not (= main_~__VERIFIER_assert__cond~1 0))) [2021-02-24 00:20:09,465 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 13 102) the Hoare annotation is: (or (= |old(~__return_100~0)| ~__return_100~0) (and (not (= main_~__tmp_1~0 0)) (not (= main_~__VERIFIER_assert__cond~0 0)))) [2021-02-24 00:20:09,465 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,465 INFO L185 CegarLoopUtils]: At program point L48(line 48) the Hoare annotation is: false [2021-02-24 00:20:09,466 INFO L185 CegarLoopUtils]: At program point L44(line 44) the Hoare annotation is: (let ((.cse0 (= |old(~__return_100~0)| ~__return_100~0)) (.cse1 (not (= main_~__tmp_2~0 0))) (.cse2 (< 0 (+ main_~main__i~0 1))) (.cse3 (< main_~main__i~0 main_~main__nlen~0))) (or (and (not (= main_~__tmp_1~0 0)) .cse0 (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__VERIFIER_assert__cond~2 0)) .cse1 .cse2 .cse3 (not (= main_~__tmp_3~0 0))) (and .cse0 .cse1 .cse2 .cse3 (= main_~__VERIFIER_assert__cond~0 1) (= main_~__tmp_1~0 1)))) [2021-02-24 00:20:09,466 INFO L185 CegarLoopUtils]: At program point L69(lines 39 89) the Hoare annotation is: (let ((.cse0 (= |old(~__return_100~0)| ~__return_100~0)) (.cse1 (< 0 (+ main_~main__i~0 1))) (.cse2 (< main_~main__i~0 main_~main__nlen~0))) (or (and (not (= main_~__tmp_1~0 0)) .cse0 (not (= main_~__VERIFIER_assert__cond~2 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) .cse1 .cse2 (not (= main_~__tmp_3~0 0))) (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~0 1) (= main_~__tmp_1~0 1)))) [2021-02-24 00:20:09,466 INFO L185 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: false [2021-02-24 00:20:09,466 INFO L185 CegarLoopUtils]: At program point L65(line 65) the Hoare annotation is: false [2021-02-24 00:20:09,466 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (= main_~__tmp_1~0 1)) [2021-02-24 00:20:09,467 INFO L185 CegarLoopUtils]: At program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 64) the Hoare annotation is: false [2021-02-24 00:20:09,467 INFO L185 CegarLoopUtils]: At program point L94(line 94) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0)) [2021-02-24 00:20:09,467 INFO L185 CegarLoopUtils]: At program point L61(line 61) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__tmp_2~0 0)) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (not (= main_~__tmp_3~0 0)) (not (= main_~__VERIFIER_assert__cond~1 0))) [2021-02-24 00:20:09,467 INFO L185 CegarLoopUtils]: At program point L53(line 53) the Hoare annotation is: (let ((.cse0 (= |old(~__return_100~0)| ~__return_100~0)) (.cse1 (not (= main_~__tmp_2~0 0))) (.cse2 (< 0 (+ main_~main__i~0 1))) (.cse3 (< main_~main__i~0 main_~main__nlen~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and (not (= main_~__tmp_1~0 0)) .cse0 (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__VERIFIER_assert__cond~2 0)) .cse1 .cse2 .cse3 (not (= main_~__tmp_3~0 0)) .cse4) (and .cse0 .cse1 .cse2 .cse3 (= main_~__VERIFIER_assert__cond~0 1) .cse4 (= main_~__tmp_1~0 1)))) [2021-02-24 00:20:09,467 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,468 INFO L185 CegarLoopUtils]: At program point L49(line 49) the Hoare annotation is: false [2021-02-24 00:20:09,468 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,468 INFO L185 CegarLoopUtils]: At program point L78(line 78) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__tmp_2~0 0)) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (not (= main_~__VERIFIER_assert__cond~1 0))) [2021-02-24 00:20:09,468 INFO L185 CegarLoopUtils]: At program point L45(line 45) the Hoare annotation is: (let ((.cse0 (= |old(~__return_100~0)| ~__return_100~0)) (.cse1 (not (= main_~__tmp_2~0 0))) (.cse2 (< 0 (+ main_~main__i~0 1))) (.cse3 (< main_~main__i~0 main_~main__nlen~0))) (or (and (not (= main_~__tmp_1~0 0)) .cse0 (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__VERIFIER_assert__cond~2 0)) .cse1 .cse2 .cse3 (not (= main_~__tmp_3~0 0))) (and .cse0 .cse1 .cse2 .cse3 (= main_~__VERIFIER_assert__cond~0 1) (= main_~__tmp_1~0 1)))) [2021-02-24 00:20:09,468 INFO L185 CegarLoopUtils]: At program point L33(lines 33 89) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (= main_~__VERIFIER_assert__cond~0 1) (= main_~__tmp_1~0 1)) [2021-02-24 00:20:09,469 INFO L185 CegarLoopUtils]: At program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) the Hoare annotation is: false [2021-02-24 00:20:09,469 INFO L185 CegarLoopUtils]: At program point L95(lines 14 102) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2021-02-24 00:20:09,469 INFO L185 CegarLoopUtils]: At program point L62(lines 62 70) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__VERIFIER_assert__cond~2 0)) (not (= main_~__tmp_2~0 0)) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (not (= main_~__tmp_3~0 0)) (not (= main_~__VERIFIER_assert__cond~1 0))) [2021-02-24 00:20:09,469 INFO L185 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0)) [2021-02-24 00:20:09,469 INFO L185 CegarLoopUtils]: At program point L58(line 58) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__tmp_2~0 0)) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (not (= main_~__VERIFIER_assert__cond~1 0))) [2021-02-24 00:20:09,470 INFO L185 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0)) [2021-02-24 00:20:09,470 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,470 INFO L185 CegarLoopUtils]: At program point L83(line 83) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2021-02-24 00:20:09,470 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,470 INFO L185 CegarLoopUtils]: At program point L79(lines 52 87) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__tmp_2~0 0)) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (not (= main_~__VERIFIER_assert__cond~1 0))) [2021-02-24 00:20:09,471 INFO L185 CegarLoopUtils]: At program point L46(lines 46 87) the Hoare annotation is: (let ((.cse0 (= |old(~__return_100~0)| ~__return_100~0)) (.cse1 (not (= main_~__tmp_2~0 0))) (.cse2 (< 0 (+ main_~main__i~0 1))) (.cse3 (< main_~main__i~0 main_~main__nlen~0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~1 0)))) (or (and (not (= main_~__tmp_1~0 0)) .cse0 (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__VERIFIER_assert__cond~2 0)) .cse1 .cse2 .cse3 (not (= main_~__tmp_3~0 0)) .cse4) (and .cse0 .cse1 .cse2 .cse3 (= main_~__VERIFIER_assert__cond~0 1) .cse4 (= main_~__tmp_1~0 1)))) [2021-02-24 00:20:09,471 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 13 102) the Hoare annotation is: (or (= |old(~__return_100~0)| ~__return_100~0) (and (not (= main_~__tmp_1~0 0)) (not (= main_~__VERIFIER_assert__cond~0 0)))) [2021-02-24 00:20:09,471 INFO L185 CegarLoopUtils]: At program point L75(line 75) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__tmp_2~0 0)) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (not (= main_~__VERIFIER_assert__cond~1 0))) [2021-02-24 00:20:09,471 INFO L185 CegarLoopUtils]: At program point L100(line 100) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,472 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) the Hoare annotation is: false [2021-02-24 00:20:09,472 INFO L185 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0)) [2021-02-24 00:20:09,472 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 13 102) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,472 INFO L185 CegarLoopUtils]: At program point L59(line 59) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__tmp_2~0 0)) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0) (not (= main_~__VERIFIER_assert__cond~1 0))) [2021-02-24 00:20:09,472 INFO L185 CegarLoopUtils]: At program point L26(lines 26 96) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1)) (< main_~main__i~0 main_~main__nlen~0)) [2021-02-24 00:20:09,473 INFO L185 CegarLoopUtils]: At program point L84(line 84) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (not (= main_~__VERIFIER_assert__cond~0 0))) [2021-02-24 00:20:09,473 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,473 INFO L185 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,473 INFO L185 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2021-02-24 00:20:09,473 INFO L185 CegarLoopUtils]: At program point L76(lines 76 85) the Hoare annotation is: (and (not (= main_~__tmp_1~0 0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= main_~__VERIFIER_assert__cond~0 0)) (not (= main_~__tmp_2~0 0)) (< 0 (+ main_~main__i~0 1)) (not (= main_~__VERIFIER_assert__cond~1 0))) [2021-02-24 00:20:09,473 INFO L185 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 (= |old(~__return_100~0)| ~__return_100~0)) (.cse1 (< 0 (+ main_~main__i~0 1))) (.cse2 (< main_~main__i~0 main_~main__nlen~0))) (or (and (not (= main_~__tmp_1~0 0)) .cse0 (not (= main_~__VERIFIER_assert__cond~2 0)) (not (= main_~__VERIFIER_assert__cond~0 0)) .cse1 .cse2 (not (= main_~__tmp_3~0 0))) (and .cse0 .cse1 .cse2 (= main_~__VERIFIER_assert__cond~0 1) (= main_~__tmp_1~0 1)))) [2021-02-24 00:20:09,474 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: false [2021-02-24 00:20:09,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:20:09 BoogieIcfgContainer [2021-02-24 00:20:09,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:20:09,497 INFO L168 Benchmark]: Toolchain (without parser) took 5576.13 ms. Allocated memory was 170.9 MB in the beginning and 247.5 MB in the end (delta: 76.5 MB). Free memory was 127.4 MB in the beginning and 210.3 MB in the end (delta: -82.8 MB). Peak memory consumption was 118.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:09,498 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 170.9 MB. Free memory is still 144.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:20:09,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.43 ms. Allocated memory is still 170.9 MB. Free memory was 126.3 MB in the beginning and 116.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:09,500 INFO L168 Benchmark]: Boogie Preprocessor took 35.73 ms. Allocated memory is still 170.9 MB. Free memory was 116.1 MB in the beginning and 114.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:09,500 INFO L168 Benchmark]: RCFGBuilder took 472.98 ms. Allocated memory is still 170.9 MB. Free memory was 114.6 MB in the beginning and 137.7 MB in the end (delta: -23.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:09,501 INFO L168 Benchmark]: TraceAbstraction took 4778.27 ms. Allocated memory was 170.9 MB in the beginning and 247.5 MB in the end (delta: 76.5 MB). Free memory was 137.7 MB in the beginning and 210.3 MB in the end (delta: -72.5 MB). Peak memory consumption was 129.2 MB. Max. memory is 8.0 GB. [2021-02-24 00:20:09,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 170.9 MB. Free memory is still 144.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 269.43 ms. Allocated memory is still 170.9 MB. Free memory was 126.3 MB in the beginning and 116.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.73 ms. Allocated memory is still 170.9 MB. Free memory was 116.1 MB in the beginning and 114.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 472.98 ms. Allocated memory is still 170.9 MB. Free memory was 114.6 MB in the beginning and 137.7 MB in the end (delta: -23.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4778.27 ms. Allocated memory was 170.9 MB in the beginning and 247.5 MB in the end (delta: 76.5 MB). Free memory was 137.7 MB in the beginning and 210.3 MB in the end (delta: -72.5 MB). Peak memory consumption was 129.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 64]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 48]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: \old(__return_100) == __return_100 && 0 < main__i + 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (((((!(__tmp_1 == 0) && \old(__return_100) == __return_100) && !(__VERIFIER_assert__cond == 0)) && !(__tmp_2 == 0)) && 0 < main__i + 1) && main__i < main__nlen) && !(__VERIFIER_assert__cond == 0) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((!(__tmp_1 == 0) && \old(__return_100) == __return_100) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && 0 < main__i + 1) && main__i < main__nlen) && !(__tmp_3 == 0)) || ((((\old(__return_100) == __return_100 && 0 < main__i + 1) && main__i < main__nlen) && __VERIFIER_assert__cond == 1) && __tmp_1 == 1) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: \old(__return_100) == __return_100 || (!(__tmp_1 == 0) && !(__VERIFIER_assert__cond == 0)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 71 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 150 SDtfs, 333 SDslu, 176 SDs, 0 SdLazy, 325 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 63 LocationsWithAnnotation, 63 PreInvPairs, 100 NumberOfFragments, 850 HoareAnnotationTreeSize, 63 FomulaSimplifications, 2913 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 63 FomulaSimplificationsInter, 1740 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 14614 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...