/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 16:23:51,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:23:51,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:23:51,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:23:51,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:23:51,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:23:51,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:23:51,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:23:51,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:23:51,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:23:51,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:23:51,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:23:51,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:23:51,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:23:51,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:23:51,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:23:51,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:23:51,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:23:51,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:23:51,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:23:51,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:23:51,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:23:51,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:23:51,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:23:51,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:23:51,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:23:51,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:23:51,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:23:51,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:23:51,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:23:51,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:23:51,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:23:51,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:23:51,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:23:51,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:23:51,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:23:51,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:23:51,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:23:51,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:23:51,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:23:51,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:23:51,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 16:23:51,376 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:23:51,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:23:51,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:23:51,378 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:23:51,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:23:51,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:23:51,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:23:51,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:23:51,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:23:51,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:23:51,380 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:23:51,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:23:51,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:23:51,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:23:51,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:23:51,382 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:23:51,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:23:51,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:23:51,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:23:51,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:23:51,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:23:51,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:23:51,383 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:23:51,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:23:51,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:23:51,681 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:23:51,683 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:23:51,683 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:23:51,684 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test04.c [2020-07-08 16:23:51,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0beb8fe3a/3e9f4b4cfee9449e90423652e37a281e/FLAGe58566b46 [2020-07-08 16:23:52,163 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:23:52,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test04.c [2020-07-08 16:23:52,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0beb8fe3a/3e9f4b4cfee9449e90423652e37a281e/FLAGe58566b46 [2020-07-08 16:23:52,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0beb8fe3a/3e9f4b4cfee9449e90423652e37a281e [2020-07-08 16:23:52,597 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:23:52,599 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:23:52,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:23:52,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:23:52,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:23:52,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:23:52" (1/1) ... [2020-07-08 16:23:52,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786be218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52, skipping insertion in model container [2020-07-08 16:23:52,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:23:52" (1/1) ... [2020-07-08 16:23:52,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:23:52,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:23:52,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:23:52,860 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:23:52,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:23:52,893 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:23:52,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52 WrapperNode [2020-07-08 16:23:52,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:23:52,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:23:52,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:23:52,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:23:52,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52" (1/1) ... [2020-07-08 16:23:52,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52" (1/1) ... [2020-07-08 16:23:53,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52" (1/1) ... [2020-07-08 16:23:53,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52" (1/1) ... [2020-07-08 16:23:53,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52" (1/1) ... [2020-07-08 16:23:53,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52" (1/1) ... [2020-07-08 16:23:53,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52" (1/1) ... [2020-07-08 16:23:53,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:23:53,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:23:53,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:23:53,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:23:53,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52" (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 [2020-07-08 16:23:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:23:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:23:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-08 16:23:53,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:23:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:23:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-08 16:23:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:23:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 16:23:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 16:23:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 16:23:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 16:23:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:23:53,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:23:53,440 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:23:53,441 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 16:23:53,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:23:53 BoogieIcfgContainer [2020-07-08 16:23:53,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:23:53,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:23:53,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:23:53,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:23:53,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:23:52" (1/3) ... [2020-07-08 16:23:53,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24db2cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:23:53, skipping insertion in model container [2020-07-08 16:23:53,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:23:52" (2/3) ... [2020-07-08 16:23:53,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24db2cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:23:53, skipping insertion in model container [2020-07-08 16:23:53,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:23:53" (3/3) ... [2020-07-08 16:23:53,453 INFO L109 eAbstractionObserver]: Analyzing ICFG test04.c [2020-07-08 16:23:53,462 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:23:53,473 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 16:23:53,488 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 16:23:53,504 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:23:53,504 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:23:53,504 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:23:53,504 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:23:53,505 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:23:53,505 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:23:53,505 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:23:53,505 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:23:53,520 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-08 16:23:53,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-08 16:23:53,530 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:23:53,531 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] [2020-07-08 16:23:53,532 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 16:23:53,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:23:53,538 INFO L82 PathProgramCache]: Analyzing trace with hash -603365198, now seen corresponding path program 1 times [2020-07-08 16:23:53,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:23:53,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032741214] [2020-07-08 16:23:53,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:23:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:23:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:23:53,968 INFO L280 TraceCheckUtils]: 0: Hoare triple {62#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {43#true} is VALID [2020-07-08 16:23:53,969 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} #valid := #valid[0 := 0]; {43#true} is VALID [2020-07-08 16:23:53,969 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-08 16:23:53,970 INFO L280 TraceCheckUtils]: 3: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-08 16:23:53,970 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {43#true} {43#true} #41#return; {43#true} is VALID [2020-07-08 16:23:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:23:54,084 INFO L280 TraceCheckUtils]: 0: Hoare triple {43#true} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset; {63#(= |f_#in~p1.base| f_~p1.base)} is VALID [2020-07-08 16:23:54,086 INFO L280 TraceCheckUtils]: 1: Hoare triple {63#(= |f_#in~p1.base| f_~p1.base)} ~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {64#(and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base))} is VALID [2020-07-08 16:23:54,087 INFO L280 TraceCheckUtils]: 2: Hoare triple {64#(and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base))} #res := (if ~p1.base == ~p2.base && ~p1.offset == ~p2.offset then 1 else 0); {65#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} is VALID [2020-07-08 16:23:54,089 INFO L280 TraceCheckUtils]: 3: Hoare triple {65#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} assume true; {65#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} is VALID [2020-07-08 16:23:54,093 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {65#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} {53#(and (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|))} #45#return; {59#(and (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (= main_~p1~0.offset |main_~#a~0.offset|))} is VALID [2020-07-08 16:23:54,095 INFO L263 TraceCheckUtils]: 0: Hoare triple {43#true} call ULTIMATE.init(); {62#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 16:23:54,095 INFO L280 TraceCheckUtils]: 1: Hoare triple {62#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {43#true} is VALID [2020-07-08 16:23:54,096 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} #valid := #valid[0 := 0]; {43#true} is VALID [2020-07-08 16:23:54,096 INFO L280 TraceCheckUtils]: 3: Hoare triple {43#true} assume 0 < #StackHeapBarrier; {43#true} is VALID [2020-07-08 16:23:54,097 INFO L280 TraceCheckUtils]: 4: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-08 16:23:54,097 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {43#true} {43#true} #41#return; {43#true} is VALID [2020-07-08 16:23:54,098 INFO L263 TraceCheckUtils]: 6: Hoare triple {43#true} call #t~ret2 := main(); {43#true} is VALID [2020-07-08 16:23:54,099 INFO L280 TraceCheckUtils]: 7: Hoare triple {43#true} SUMMARY for call ~#a~0.base, ~#a~0.offset := #Ultimate.allocOnStack(4); srcloc: mainENTRY {50#(= 1 (select |#valid| |main_~#a~0.base|))} is VALID [2020-07-08 16:23:54,101 INFO L280 TraceCheckUtils]: 8: Hoare triple {50#(= 1 (select |#valid| |main_~#a~0.base|))} SUMMARY for call ~#b~0.base, ~#b~0.offset := #Ultimate.allocOnStack(4); srcloc: L9 {51#(not (= |main_~#b~0.base| |main_~#a~0.base|))} is VALID [2020-07-08 16:23:54,103 INFO L280 TraceCheckUtils]: 9: Hoare triple {51#(not (= |main_~#b~0.base| |main_~#a~0.base|))} ~p1~0.base, ~p1~0.offset := ~#a~0.base, ~#a~0.offset; {52#(and (= main_~p1~0.base |main_~#a~0.base|) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)))} is VALID [2020-07-08 16:23:54,104 INFO L280 TraceCheckUtils]: 10: Hoare triple {52#(and (= main_~p1~0.base |main_~#a~0.base|) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)))} ~p2~0.base, ~p2~0.offset := ~#b~0.base, ~#b~0.offset; {53#(and (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|))} is VALID [2020-07-08 16:23:54,105 INFO L263 TraceCheckUtils]: 11: Hoare triple {53#(and (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|))} call #t~ret0 := f(~p1~0.base, ~p1~0.offset, ~p2~0.base, ~p2~0.offset); {43#true} is VALID [2020-07-08 16:23:54,106 INFO L280 TraceCheckUtils]: 12: Hoare triple {43#true} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset; {63#(= |f_#in~p1.base| f_~p1.base)} is VALID [2020-07-08 16:23:54,107 INFO L280 TraceCheckUtils]: 13: Hoare triple {63#(= |f_#in~p1.base| f_~p1.base)} ~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {64#(and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base))} is VALID [2020-07-08 16:23:54,109 INFO L280 TraceCheckUtils]: 14: Hoare triple {64#(and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base))} #res := (if ~p1.base == ~p2.base && ~p1.offset == ~p2.offset then 1 else 0); {65#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} is VALID [2020-07-08 16:23:54,110 INFO L280 TraceCheckUtils]: 15: Hoare triple {65#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} assume true; {65#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} is VALID [2020-07-08 16:23:54,113 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {65#(and (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|))} {53#(and (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|))} #45#return; {59#(and (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (= main_~p1~0.offset |main_~#a~0.offset|))} is VALID [2020-07-08 16:23:54,114 INFO L280 TraceCheckUtils]: 17: Hoare triple {59#(and (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (= main_~p1~0.offset |main_~#a~0.offset|))} assume -2147483648 <= #t~ret0 && #t~ret0 <= 2147483647; {59#(and (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (= main_~p1~0.offset |main_~#a~0.offset|))} is VALID [2020-07-08 16:23:54,116 INFO L280 TraceCheckUtils]: 18: Hoare triple {59#(and (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (= main_~p1~0.offset |main_~#a~0.offset|))} SUMMARY for call write~int(#t~ret0, ~#a~0.base, ~#a~0.offset, 4); srcloc: L14-2 {60#(= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))} is VALID [2020-07-08 16:23:54,117 INFO L280 TraceCheckUtils]: 19: Hoare triple {60#(= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))} havoc #t~ret0; {60#(= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))} is VALID [2020-07-08 16:23:54,118 INFO L280 TraceCheckUtils]: 20: Hoare triple {60#(= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))} SUMMARY for call #t~mem1 := read~int(~p1~0.base, ~p1~0.offset, 4); srcloc: L16 {61#(= 0 |main_#t~mem1|)} is VALID [2020-07-08 16:23:54,119 INFO L280 TraceCheckUtils]: 21: Hoare triple {61#(= 0 |main_#t~mem1|)} assume 0 != #t~mem1; {44#false} is VALID [2020-07-08 16:23:54,120 INFO L280 TraceCheckUtils]: 22: Hoare triple {44#false} havoc #t~mem1; {44#false} is VALID [2020-07-08 16:23:54,120 INFO L280 TraceCheckUtils]: 23: Hoare triple {44#false} assume !false; {44#false} is VALID [2020-07-08 16:23:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 16:23:54,125 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:23:54,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032741214] [2020-07-08 16:23:54,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:23:54,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-08 16:23:54,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044574599] [2020-07-08 16:23:54,137 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-07-08 16:23:54,141 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:23:54,145 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-08 16:23:54,190 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:23:54,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-08 16:23:54,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:23:54,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-08 16:23:54,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-07-08 16:23:54,205 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 13 states. [2020-07-08 16:23:55,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:23:55,170 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-07-08 16:23:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-08 16:23:55,171 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-07-08 16:23:55,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:23:55,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 16:23:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 43 transitions. [2020-07-08 16:23:55,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 16:23:55,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 43 transitions. [2020-07-08 16:23:55,192 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 43 transitions. [2020-07-08 16:23:55,254 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:23:55,261 INFO L225 Difference]: With dead ends: 44 [2020-07-08 16:23:55,262 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 16:23:55,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2020-07-08 16:23:55,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 16:23:55,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 16:23:55,290 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:23:55,291 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 16:23:55,292 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 16:23:55,292 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 16:23:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:23:55,293 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 16:23:55,293 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 16:23:55,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:23:55,293 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:23:55,293 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 16:23:55,294 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 16:23:55,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:23:55,294 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 16:23:55,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 16:23:55,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:23:55,295 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:23:55,295 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:23:55,295 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:23:55,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 16:23:55,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 16:23:55,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-07-08 16:23:55,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:23:55,298 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 16:23:55,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-08 16:23:55,298 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-08 16:23:55,298 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 16:23:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 16:23:55,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:23:55,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:23:55,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 16:23:55,669 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 16:23:55,669 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-08 16:23:55,670 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-08 16:23:55,670 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-08 16:23:55,670 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-08 16:23:55,670 INFO L264 CegarLoopResult]: At program point fEXIT(lines 4 6) the Hoare annotation is: (and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base) (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|)) [2020-07-08 16:23:55,670 INFO L271 CegarLoopResult]: At program point fENTRY(lines 4 6) the Hoare annotation is: true [2020-07-08 16:23:55,671 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base)) [2020-07-08 16:23:55,671 INFO L264 CegarLoopResult]: At program point L4(lines 4 6) the Hoare annotation is: (= |f_#in~p1.base| f_~p1.base) [2020-07-08 16:23:55,671 INFO L264 CegarLoopResult]: At program point fFINAL(lines 4 6) the Hoare annotation is: (and (= |f_#in~p1.base| f_~p1.base) (= |f_#in~p2.base| f_~p2.base) (or (= |f_#in~p1.base| |f_#in~p2.base|) (<= |f_#res| 0)) (<= 0 |f_#res|)) [2020-07-08 16:23:55,671 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-08 16:23:55,671 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 16:23:55,671 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 16:23:55,672 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-08 16:23:55,672 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 8 24) the Hoare annotation is: (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset)) [2020-07-08 16:23:55,672 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: false [2020-07-08 16:23:55,672 INFO L264 CegarLoopResult]: At program point L17(lines 8 24) the Hoare annotation is: false [2020-07-08 16:23:55,672 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 8 24) the Hoare annotation is: (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset)) [2020-07-08 16:23:55,673 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (= 1 (select |#valid| |main_~#a~0.base|)) [2020-07-08 16:23:55,673 INFO L264 CegarLoopResult]: At program point L9-1(line 9) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-08 16:23:55,673 INFO L264 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))) [2020-07-08 16:23:55,673 INFO L264 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: (and (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))) [2020-07-08 16:23:55,673 INFO L264 CegarLoopResult]: At program point L9-4(line 9) the Hoare annotation is: (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset)) [2020-07-08 16:23:55,674 INFO L264 CegarLoopResult]: At program point L9-5(line 9) the Hoare annotation is: (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset)) [2020-07-08 16:23:55,674 INFO L264 CegarLoopResult]: At program point L9-6(line 9) the Hoare annotation is: false [2020-07-08 16:23:55,674 INFO L264 CegarLoopResult]: At program point L9-7(line 9) the Hoare annotation is: false [2020-07-08 16:23:55,674 INFO L264 CegarLoopResult]: At program point L9-8(line 9) the Hoare annotation is: false [2020-07-08 16:23:55,674 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) the Hoare annotation is: false [2020-07-08 16:23:55,674 INFO L264 CegarLoopResult]: At program point L9-9(line 9) the Hoare annotation is: false [2020-07-08 16:23:55,675 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 8 24) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-08 16:23:55,675 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))) [2020-07-08 16:23:55,675 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))) [2020-07-08 16:23:55,675 INFO L264 CegarLoopResult]: At program point L16-1(lines 16 18) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= 0 |main_#t~mem1|) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))) [2020-07-08 16:23:55,675 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-08 16:23:55,676 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: false [2020-07-08 16:23:55,676 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-08 16:23:55,676 INFO L264 CegarLoopResult]: At program point L16-3(line 16) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= 0 |main_#t~mem1|) (= main_~p1~0.base |main_~#a~0.base|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))) [2020-07-08 16:23:55,676 INFO L264 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-08 16:23:55,676 INFO L264 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-07-08 16:23:55,677 INFO L264 CegarLoopResult]: At program point L14-3(line 14) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#a~0.base|)) (= main_~p1~0.base |main_~#a~0.base|) (= 0 |main_#t~ret0|) (not (= main_~p1~0.base main_~p2~0.base)) (= main_~p1~0.offset |main_~#a~0.offset|) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= 0 (select (select |#memory_int| main_~p1~0.base) main_~p1~0.offset))) [2020-07-08 16:23:55,698 INFO L163 areAnnotationChecker]: CFG has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 16:23:55,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 16:23:55,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 04:23:55 BoogieIcfgContainer [2020-07-08 16:23:55,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 16:23:55,717 INFO L168 Benchmark]: Toolchain (without parser) took 3115.98 ms. Allocated memory was 137.4 MB in the beginning and 247.5 MB in the end (delta: 110.1 MB). Free memory was 102.6 MB in the beginning and 124.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:55,718 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 16:23:55,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.43 ms. Allocated memory is still 137.4 MB. Free memory was 102.2 MB in the beginning and 92.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:55,720 INFO L168 Benchmark]: Boogie Preprocessor took 129.21 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 92.4 MB in the beginning and 179.4 MB in the end (delta: -87.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:55,720 INFO L168 Benchmark]: RCFGBuilder took 421.28 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 158.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:55,721 INFO L168 Benchmark]: TraceAbstraction took 2266.56 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 158.3 MB in the beginning and 124.0 MB in the end (delta: 34.3 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-07-08 16:23:55,733 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 292.43 ms. Allocated memory is still 137.4 MB. Free memory was 102.2 MB in the beginning and 92.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.21 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 92.4 MB in the beginning and 179.4 MB in the end (delta: -87.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.28 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 158.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2266.56 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 158.3 MB in the beginning and 124.0 MB in the end (delta: 34.3 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 8]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 4]: Procedure Contract for f Derived contract for procedure f: ((p1 == p1 && p2 == p2) && (p1 == p2 || \result <= 0)) && 0 <= \result - ProcedureContractResult [Line: 8]: Procedure Contract for main [2020-07-08 16:23:55,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 16:23:55,754 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure main: 0 == unknown-#memory_int-unknown[p1][p1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 50 SDslu, 127 SDs, 0 SdLazy, 129 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 40 PreInvPairs, 44 NumberOfFragments, 392 HoareAnnotationTreeSize, 40 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 40 FomulaSimplificationsInter, 53 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...