/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 --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/ldv-regression/test26-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 22:23:16,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 22:23:16,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 22:23:16,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-08 22:23:16,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 22:23:16,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 22:23:16,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 22:23:16,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 22:23:16,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 22:23:16,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 22:23:16,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 22:23:16,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 22:23:16,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 22:23:16,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 22:23:16,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 22:23:16,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 22:23:16,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 22:23:16,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 22:23:16,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 22:23:16,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 22:23:16,587 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 22:23:16,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 22:23:16,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 22:23:16,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 22:23:16,599 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 22:23:16,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 22:23:16,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 22:23:16,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 22:23:16,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 22:23:16,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 22:23:16,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 22:23:16,601 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 22:23:16,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 22:23:16,601 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 22:23:16,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 22:23:16,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 22:23:16,602 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 22:23:16,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 22:23:16,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 22:23:16,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 22:23:16,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 22:23:16,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 22:23:16,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 22:23:16,603 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-07-08 22:23:16,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 22:23:16,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 22:23:16,921 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 22:23:16,923 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 22:23:16,924 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 22:23:16,925 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test26-1.c [2020-07-08 22:23:17,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94cbeb6c/fd01e672c207474d9c5bfdc6898ca00b/FLAG5355dedaf [2020-07-08 22:23:17,566 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 22:23:17,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test26-1.c [2020-07-08 22:23:17,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94cbeb6c/fd01e672c207474d9c5bfdc6898ca00b/FLAG5355dedaf [2020-07-08 22:23:17,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a94cbeb6c/fd01e672c207474d9c5bfdc6898ca00b [2020-07-08 22:23:17,926 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 22:23:17,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 22:23:17,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 22:23:17,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 22:23:17,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 22:23:17,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:23:17" (1/1) ... [2020-07-08 22:23:17,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dcf5463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:17, skipping insertion in model container [2020-07-08 22:23:17,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:23:17" (1/1) ... [2020-07-08 22:23:17,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 22:23:17,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 22:23:18,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:23:18,281 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 22:23:18,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:23:18,311 INFO L208 MainTranslator]: Completed translation [2020-07-08 22:23:18,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18 WrapperNode [2020-07-08 22:23:18,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 22:23:18,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 22:23:18,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 22:23:18,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 22:23:18,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18" (1/1) ... [2020-07-08 22:23:18,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18" (1/1) ... [2020-07-08 22:23:18,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18" (1/1) ... [2020-07-08 22:23:18,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18" (1/1) ... [2020-07-08 22:23:18,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18" (1/1) ... [2020-07-08 22:23:18,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18" (1/1) ... [2020-07-08 22:23:18,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18" (1/1) ... [2020-07-08 22:23:18,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 22:23:18,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 22:23:18,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 22:23:18,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 22:23:18,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18" (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 22:23:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 22:23:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 22:23:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-07-08 22:23:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 22:23:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 22:23:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-07-08 22:23:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 22:23:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 22:23:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 22:23:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 22:23:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 22:23:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-08 22:23:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 22:23:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 22:23:18,875 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 22:23:18,875 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 22:23:18,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:23:18 BoogieIcfgContainer [2020-07-08 22:23:18,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 22:23:18,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 22:23:18,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 22:23:18,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 22:23:18,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 10:23:17" (1/3) ... [2020-07-08 22:23:18,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50817f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:23:18, skipping insertion in model container [2020-07-08 22:23:18,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:18" (2/3) ... [2020-07-08 22:23:18,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50817f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:23:18, skipping insertion in model container [2020-07-08 22:23:18,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:23:18" (3/3) ... [2020-07-08 22:23:18,891 INFO L109 eAbstractionObserver]: Analyzing ICFG test26-1.c [2020-07-08 22:23:18,903 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 22:23:18,912 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 22:23:18,928 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 22:23:18,952 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 22:23:18,953 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 22:23:18,953 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 22:23:18,953 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 22:23:18,954 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 22:23:18,954 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 22:23:18,954 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 22:23:18,954 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 22:23:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-08 22:23:18,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 22:23:18,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:23:18,983 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] [2020-07-08 22:23:18,984 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:23:18,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:23:18,990 INFO L82 PathProgramCache]: Analyzing trace with hash 584275181, now seen corresponding path program 1 times [2020-07-08 22:23:18,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:23:18,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236358808] [2020-07-08 22:23:18,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:23:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:23:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:23:19,742 INFO L280 TraceCheckUtils]: 0: Hoare triple {59#(and (= |~#global~0.base| |old(~#global~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#global~0.offset| |old(~#global~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0; {37#true} is VALID [2020-07-08 22:23:19,743 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} #valid := #valid[0 := 0]; {37#true} is VALID [2020-07-08 22:23:19,744 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} assume 0 < #StackHeapBarrier; {37#true} is VALID [2020-07-08 22:23:19,746 INFO L280 TraceCheckUtils]: 3: Hoare triple {37#true} SUMMARY for call ~#global~0.base, ~#global~0.offset := #Ultimate.allocOnStack(8); srcloc: L3 {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:19,747 INFO L280 TraceCheckUtils]: 4: Hoare triple {47#(= |~#global~0.offset| 0)} SUMMARY for call write~init~int(0, ~#global~0.base, ~#global~0.offset, 4); srcloc: L3-1 {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:19,749 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#(= |~#global~0.offset| 0)} SUMMARY for call write~init~int(1, ~#global~0.base, 4 + ~#global~0.offset, 4); srcloc: L3-2 {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:19,750 INFO L280 TraceCheckUtils]: 6: Hoare triple {47#(= |~#global~0.offset| 0)} assume true; {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:19,752 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {47#(= |~#global~0.offset| 0)} {37#true} #35#return; {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:23:20,102 INFO L280 TraceCheckUtils]: 0: Hoare triple {60#(= |#memory_int| |old(#memory_int)|)} ~pa.base, ~pa.offset := #in~pa.base, #in~pa.offset; {61#(and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|))} is VALID [2020-07-08 22:23:20,104 INFO L280 TraceCheckUtils]: 1: Hoare triple {61#(and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|))} ~pb.base, ~pb.offset := #in~pb.base, #in~pb.offset; {62#(and (or (= assign_~pb.offset assign_~pa.offset) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or (not (= assign_~pa.base assign_~pb.base)) (= assign_~pb.offset |assign_#in~pb.offset|)) (or (= assign_~pa.base assign_~pb.base) (not (= |assign_#in~pa.base| |assign_#in~pb.base|))))) (or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (not (= assign_~pb.offset assign_~pa.offset))))} is VALID [2020-07-08 22:23:20,107 INFO L280 TraceCheckUtils]: 2: Hoare triple {62#(and (or (= assign_~pb.offset assign_~pa.offset) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or (not (= assign_~pa.base assign_~pb.base)) (= assign_~pb.offset |assign_#in~pb.offset|)) (or (= assign_~pa.base assign_~pb.base) (not (= |assign_#in~pa.base| |assign_#in~pb.base|))))) (or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (not (= assign_~pb.offset assign_~pa.offset))))} SUMMARY for call #t~mem0 := read~int(~pb.base, ~pb.offset, 4); srcloc: L9 {63#(or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (and (= assign_~pa.base |assign_#in~pa.base|) (or (and (= assign_~pa.offset |assign_#in~pa.offset|) (= |assign_#t~mem0| (select (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem0|) |assign_#in~pb.offset|))) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))))} is VALID [2020-07-08 22:23:20,109 INFO L280 TraceCheckUtils]: 3: Hoare triple {63#(or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (and (= assign_~pa.base |assign_#in~pa.base|) (or (and (= assign_~pa.offset |assign_#in~pa.offset|) (= |assign_#t~mem0| (select (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem0|) |assign_#in~pb.offset|))) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))))} SUMMARY for call write~int(#t~mem0, ~pa.base, ~pa.offset, 4); srcloc: L9-1 {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} is VALID [2020-07-08 22:23:20,110 INFO L280 TraceCheckUtils]: 4: Hoare triple {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} havoc #t~mem0; {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} is VALID [2020-07-08 22:23:20,113 INFO L280 TraceCheckUtils]: 5: Hoare triple {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} assume true; {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} is VALID [2020-07-08 22:23:20,116 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} {48#(and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= |~#global~0.offset| 0))} #39#return; {56#(and (= 0 main_~pd~0.offset) (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)) (= |~#global~0.offset| 0))} is VALID [2020-07-08 22:23:20,121 INFO L263 TraceCheckUtils]: 0: Hoare triple {37#true} call ULTIMATE.init(); {59#(and (= |~#global~0.base| |old(~#global~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#global~0.offset| |old(~#global~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 22:23:20,122 INFO L280 TraceCheckUtils]: 1: Hoare triple {59#(and (= |~#global~0.base| |old(~#global~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#global~0.offset| |old(~#global~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|))} #NULL.base, #NULL.offset := 0, 0; {37#true} is VALID [2020-07-08 22:23:20,122 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} #valid := #valid[0 := 0]; {37#true} is VALID [2020-07-08 22:23:20,122 INFO L280 TraceCheckUtils]: 3: Hoare triple {37#true} assume 0 < #StackHeapBarrier; {37#true} is VALID [2020-07-08 22:23:20,124 INFO L280 TraceCheckUtils]: 4: Hoare triple {37#true} SUMMARY for call ~#global~0.base, ~#global~0.offset := #Ultimate.allocOnStack(8); srcloc: L3 {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:20,125 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#(= |~#global~0.offset| 0)} SUMMARY for call write~init~int(0, ~#global~0.base, ~#global~0.offset, 4); srcloc: L3-1 {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:20,126 INFO L280 TraceCheckUtils]: 6: Hoare triple {47#(= |~#global~0.offset| 0)} SUMMARY for call write~init~int(1, ~#global~0.base, 4 + ~#global~0.offset, 4); srcloc: L3-2 {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:20,127 INFO L280 TraceCheckUtils]: 7: Hoare triple {47#(= |~#global~0.offset| 0)} assume true; {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:20,128 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {47#(= |~#global~0.offset| 0)} {37#true} #35#return; {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:20,129 INFO L263 TraceCheckUtils]: 9: Hoare triple {47#(= |~#global~0.offset| 0)} call #t~ret3 := main(); {47#(= |~#global~0.offset| 0)} is VALID [2020-07-08 22:23:20,130 INFO L280 TraceCheckUtils]: 10: Hoare triple {47#(= |~#global~0.offset| 0)} ~pd~0.base, ~pd~0.offset := ~#global~0.base, ~#global~0.offset; {48#(and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= |~#global~0.offset| 0))} is VALID [2020-07-08 22:23:20,132 INFO L263 TraceCheckUtils]: 11: Hoare triple {48#(and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= |~#global~0.offset| 0))} call assign(~pd~0.base, ~pd~0.offset, ~pd~0.base, 4 + ~pd~0.offset); {60#(= |#memory_int| |old(#memory_int)|)} is VALID [2020-07-08 22:23:20,134 INFO L280 TraceCheckUtils]: 12: Hoare triple {60#(= |#memory_int| |old(#memory_int)|)} ~pa.base, ~pa.offset := #in~pa.base, #in~pa.offset; {61#(and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|))} is VALID [2020-07-08 22:23:20,135 INFO L280 TraceCheckUtils]: 13: Hoare triple {61#(and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|))} ~pb.base, ~pb.offset := #in~pb.base, #in~pb.offset; {62#(and (or (= assign_~pb.offset assign_~pa.offset) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or (not (= assign_~pa.base assign_~pb.base)) (= assign_~pb.offset |assign_#in~pb.offset|)) (or (= assign_~pa.base assign_~pb.base) (not (= |assign_#in~pa.base| |assign_#in~pb.base|))))) (or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (not (= assign_~pb.offset assign_~pa.offset))))} is VALID [2020-07-08 22:23:20,138 INFO L280 TraceCheckUtils]: 14: Hoare triple {62#(and (or (= assign_~pb.offset assign_~pa.offset) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or (not (= assign_~pa.base assign_~pb.base)) (= assign_~pb.offset |assign_#in~pb.offset|)) (or (= assign_~pa.base assign_~pb.base) (not (= |assign_#in~pa.base| |assign_#in~pb.base|))))) (or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (not (= assign_~pb.offset assign_~pa.offset))))} SUMMARY for call #t~mem0 := read~int(~pb.base, ~pb.offset, 4); srcloc: L9 {63#(or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (and (= assign_~pa.base |assign_#in~pa.base|) (or (and (= assign_~pa.offset |assign_#in~pa.offset|) (= |assign_#t~mem0| (select (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem0|) |assign_#in~pb.offset|))) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))))} is VALID [2020-07-08 22:23:20,140 INFO L280 TraceCheckUtils]: 15: Hoare triple {63#(or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (and (= assign_~pa.base |assign_#in~pa.base|) (or (and (= assign_~pa.offset |assign_#in~pa.offset|) (= |assign_#t~mem0| (select (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem0|) |assign_#in~pb.offset|))) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))))} SUMMARY for call write~int(#t~mem0, ~pa.base, ~pa.offset, 4); srcloc: L9-1 {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} is VALID [2020-07-08 22:23:20,142 INFO L280 TraceCheckUtils]: 16: Hoare triple {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} havoc #t~mem0; {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} is VALID [2020-07-08 22:23:20,144 INFO L280 TraceCheckUtils]: 17: Hoare triple {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} assume true; {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} is VALID [2020-07-08 22:23:20,147 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {64#(or (= (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pa.offset|) (select (select |#memory_int| |assign_#in~pa.base|) |assign_#in~pb.offset|)) (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))} {48#(and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= |~#global~0.offset| 0))} #39#return; {56#(and (= 0 main_~pd~0.offset) (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)) (= |~#global~0.offset| 0))} is VALID [2020-07-08 22:23:20,150 INFO L280 TraceCheckUtils]: 19: Hoare triple {56#(and (= 0 main_~pd~0.offset) (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)) (= |~#global~0.offset| 0))} SUMMARY for call #t~mem1 := read~int(~pd~0.base, ~pd~0.offset, 4); srcloc: L16-1 {57#(and (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) |main_#t~mem1|) (= |~#global~0.offset| 0))} is VALID [2020-07-08 22:23:20,152 INFO L280 TraceCheckUtils]: 20: Hoare triple {57#(and (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) |main_#t~mem1|) (= |~#global~0.offset| 0))} SUMMARY for call #t~mem2 := read~int(~#global~0.base, 4 + ~#global~0.offset, 4); srcloc: L18 {58#(= |main_#t~mem2| |main_#t~mem1|)} is VALID [2020-07-08 22:23:20,156 INFO L280 TraceCheckUtils]: 21: Hoare triple {58#(= |main_#t~mem2| |main_#t~mem1|)} assume #t~mem1 != #t~mem2; {38#false} is VALID [2020-07-08 22:23:20,157 INFO L280 TraceCheckUtils]: 22: Hoare triple {38#false} havoc #t~mem2; {38#false} is VALID [2020-07-08 22:23:20,157 INFO L280 TraceCheckUtils]: 23: Hoare triple {38#false} havoc #t~mem1; {38#false} is VALID [2020-07-08 22:23:20,158 INFO L280 TraceCheckUtils]: 24: Hoare triple {38#false} assume !false; {38#false} is VALID [2020-07-08 22:23:20,166 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 22:23:20,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236358808] [2020-07-08 22:23:20,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:23:20,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-08 22:23:20,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83509888] [2020-07-08 22:23:20,180 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-07-08 22:23:20,185 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:23:20,189 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-08 22:23:20,249 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:23:20,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-08 22:23:20,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:23:20,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-08 22:23:20,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-07-08 22:23:20,266 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 13 states. [2020-07-08 22:23:21,139 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2020-07-08 22:23:21,342 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-07-08 22:23:21,565 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2020-07-08 22:23:21,746 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-07-08 22:23:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:22,413 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-07-08 22:23:22,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-08 22:23:22,414 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2020-07-08 22:23:22,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:23:22,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 22:23:22,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 37 transitions. [2020-07-08 22:23:22,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 22:23:22,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 37 transitions. [2020-07-08 22:23:22,436 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 37 transitions. [2020-07-08 22:23:22,512 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:23:22,519 INFO L225 Difference]: With dead ends: 38 [2020-07-08 22:23:22,520 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 22:23:22,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2020-07-08 22:23:22,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 22:23:22,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 22:23:22,552 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:23:22,553 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 22:23:22,554 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 22:23:22,554 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 22:23:22,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:22,555 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 22:23:22,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 22:23:22,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:23:22,555 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:23:22,556 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 22:23:22,556 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 22:23:22,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:22,556 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 22:23:22,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 22:23:22,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:23:22,557 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:23:22,557 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:23:22,558 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:23:22,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 22:23:22,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 22:23:22,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-07-08 22:23:22,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:23:22,561 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 22:23:22,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-08 22:23:22,561 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-08 22:23:22,561 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 22:23:22,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 22:23:22,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:23:22,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 22:23:22,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 22:23:23,649 INFO L264 CegarLoopResult]: At program point L3-2(lines 3 5) the Hoare annotation is: (= |~#global~0.offset| 0) [2020-07-08 22:23:23,650 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 22:23:23,650 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-08 22:23:23,650 INFO L264 CegarLoopResult]: At program point ULTIMATE.initFINAL(lines 3 5) the Hoare annotation is: (= |~#global~0.offset| 0) [2020-07-08 22:23:23,650 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#global~0.base| |old(~#global~0.base)|) (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |~#global~0.offset| |old(~#global~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|)) [2020-07-08 22:23:23,650 INFO L271 CegarLoopResult]: At program point L3(lines 3 5) the Hoare annotation is: true [2020-07-08 22:23:23,651 INFO L264 CegarLoopResult]: At program point L3-1(lines 3 5) the Hoare annotation is: (= |~#global~0.offset| 0) [2020-07-08 22:23:23,651 INFO L264 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (= |~#global~0.offset| 0) [2020-07-08 22:23:23,651 INFO L264 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (= |~#global~0.offset| 0) [2020-07-08 22:23:23,651 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= |~#global~0.offset| 0) [2020-07-08 22:23:23,651 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 22:23:23,651 INFO L264 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (= |~#global~0.offset| 0) [2020-07-08 22:23:23,652 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) the Hoare annotation is: (not (= 0 |~#global~0.offset|)) [2020-07-08 22:23:23,652 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 26) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (= |#memory_int| |old(#memory_int)|)) [2020-07-08 22:23:23,652 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (not (= 0 |~#global~0.offset|)) [2020-07-08 22:23:23,652 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 12 26) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)))) [2020-07-08 22:23:23,652 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)))) [2020-07-08 22:23:23,653 INFO L264 CegarLoopResult]: At program point L19(lines 13 26) the Hoare annotation is: (not (= 0 |~#global~0.offset|)) [2020-07-08 22:23:23,653 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (let ((.cse0 (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)))) (and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= .cse0 (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)) (= .cse0 |main_#t~mem1|)))) [2020-07-08 22:23:23,654 INFO L264 CegarLoopResult]: At program point L18-1(lines 18 20) the Hoare annotation is: (or (let ((.cse0 (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)))) (and (= |main_#t~mem2| |main_#t~mem1|) (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= .cse0 (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)) (= .cse0 |main_#t~mem1|))) (not (= |~#global~0.offset| 0))) [2020-07-08 22:23:23,654 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= |#memory_int| |old(#memory_int)|))) [2020-07-08 22:23:23,654 INFO L264 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (not (= 0 |~#global~0.offset|)) [2020-07-08 22:23:23,654 INFO L264 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)))) [2020-07-08 22:23:23,655 INFO L264 CegarLoopResult]: At program point L18-3(line 18) the Hoare annotation is: (not (= 0 |~#global~0.offset|)) [2020-07-08 22:23:23,655 INFO L264 CegarLoopResult]: At program point L18-4(line 18) the Hoare annotation is: (or (let ((.cse0 (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)))) (and (= |main_#t~mem2| |main_#t~mem1|) (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= .cse0 (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)) (= .cse0 |main_#t~mem1|))) (not (= |~#global~0.offset| 0))) [2020-07-08 22:23:23,655 INFO L264 CegarLoopResult]: At program point L18-5(line 18) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (let ((.cse0 (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)))) (and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= .cse0 (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)) (= .cse0 |main_#t~mem1|)))) [2020-07-08 22:23:23,655 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 12 26) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (and (= |~#global~0.base| main_~pd~0.base) (= 0 main_~pd~0.offset) (= (select (select |#memory_int| |~#global~0.base|) (+ |~#global~0.offset| 4)) (select (select |#memory_int| main_~pd~0.base) main_~pd~0.offset)))) [2020-07-08 22:23:23,656 INFO L264 CegarLoopResult]: At program point assignEXIT(lines 7 10) the Hoare annotation is: (or (let ((.cse2 (not (= |assign_#in~pa.base| |assign_#in~pb.base|))) (.cse0 (= assign_~pb.offset assign_~pa.offset))) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or .cse0 (let ((.cse1 (= assign_~pa.base assign_~pb.base))) (and (or (not .cse1) (= assign_~pb.offset |assign_#in~pb.offset|)) (or .cse1 .cse2)))) (or (let ((.cse3 (select |#memory_int| |assign_#in~pa.base|))) (= (select .cse3 |assign_#in~pa.offset|) (select .cse3 |assign_#in~pb.offset|))) .cse2) (or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (not .cse0)))) (not (= |~#global~0.offset| 0))) [2020-07-08 22:23:23,656 INFO L264 CegarLoopResult]: At program point assignENTRY(lines 7 10) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (= |#memory_int| |old(#memory_int)|)) [2020-07-08 22:23:23,656 INFO L264 CegarLoopResult]: At program point assignFINAL(lines 7 10) the Hoare annotation is: (or (let ((.cse2 (not (= |assign_#in~pa.base| |assign_#in~pb.base|))) (.cse0 (= assign_~pb.offset assign_~pa.offset))) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or .cse0 (let ((.cse1 (= assign_~pa.base assign_~pb.base))) (and (or (not .cse1) (= assign_~pb.offset |assign_#in~pb.offset|)) (or .cse1 .cse2)))) (or (let ((.cse3 (select |#memory_int| |assign_#in~pa.base|))) (= (select .cse3 |assign_#in~pa.offset|) (select .cse3 |assign_#in~pb.offset|))) .cse2) (or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (not .cse0)))) (not (= |~#global~0.offset| 0))) [2020-07-08 22:23:23,657 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (let ((.cse0 (= assign_~pb.offset assign_~pa.offset))) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (= |#memory_int| |old(#memory_int)|) (or .cse0 (let ((.cse1 (= assign_~pa.base assign_~pb.base))) (and (or (not .cse1) (= assign_~pb.offset |assign_#in~pb.offset|)) (or .cse1 (not (= |assign_#in~pa.base| |assign_#in~pb.base|)))))) (or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (not .cse0))))) [2020-07-08 22:23:23,657 INFO L264 CegarLoopResult]: At program point L9-1(line 9) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (let ((.cse2 (not (= |assign_#in~pa.base| |assign_#in~pb.base|))) (.cse0 (= assign_~pb.offset assign_~pa.offset))) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or .cse0 (let ((.cse1 (= assign_~pa.base assign_~pb.base))) (and (or (not .cse1) (= assign_~pb.offset |assign_#in~pb.offset|)) (or .cse1 .cse2)))) (= |#memory_int| |old(#memory_int)|) (or (= |assign_#t~mem0| (select (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem0|) |assign_#in~pb.offset|)) .cse2) (or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (not .cse0))))) [2020-07-08 22:23:23,657 INFO L264 CegarLoopResult]: At program point L7(lines 7 10) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (= |#memory_int| |old(#memory_int)|))) [2020-07-08 22:23:23,657 INFO L264 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: (or (not (= |~#global~0.offset| 0)) (let ((.cse2 (not (= |assign_#in~pa.base| |assign_#in~pb.base|))) (.cse0 (= assign_~pb.offset assign_~pa.offset))) (and (= assign_~pa.base |assign_#in~pa.base|) (= assign_~pa.offset |assign_#in~pa.offset|) (or .cse0 (let ((.cse1 (= assign_~pa.base assign_~pb.base))) (and (or (not .cse1) (= assign_~pb.offset |assign_#in~pb.offset|)) (or .cse1 .cse2)))) (or (= |assign_#t~mem0| (select (store (select |#memory_int| assign_~pa.base) assign_~pa.offset |assign_#t~mem0|) |assign_#in~pb.offset|)) .cse2) (or (let ((.cse3 (select |#memory_int| |assign_#in~pa.base|))) (= (select .cse3 |assign_#in~pa.offset|) (select .cse3 |assign_#in~pb.offset|))) .cse2) (or (= |assign_#in~pb.offset| |assign_#in~pa.offset|) (not .cse0))))) [2020-07-08 22:23:23,687 INFO L163 areAnnotationChecker]: CFG has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 22:23:23,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 10:23:23 BoogieIcfgContainer [2020-07-08 22:23:23,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 22:23:23,727 INFO L168 Benchmark]: Toolchain (without parser) took 5797.96 ms. Allocated memory was 138.4 MB in the beginning and 283.1 MB in the end (delta: 144.7 MB). Free memory was 102.0 MB in the beginning and 120.3 MB in the end (delta: -18.3 MB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:23,728 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 138.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 22:23:23,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.67 ms. Allocated memory is still 138.4 MB. Free memory was 101.8 MB in the beginning and 91.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:23,730 INFO L168 Benchmark]: Boogie Preprocessor took 130.75 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.2 MB in the beginning and 179.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:23,731 INFO L168 Benchmark]: RCFGBuilder took 437.49 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 161.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:23,732 INFO L168 Benchmark]: TraceAbstraction took 4841.35 ms. Allocated memory was 201.9 MB in the beginning and 283.1 MB in the end (delta: 81.3 MB). Free memory was 160.3 MB in the beginning and 120.3 MB in the end (delta: 40.0 MB). Peak memory consumption was 121.3 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:23,736 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 1.04 ms. Allocated memory is still 138.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 380.67 ms. Allocated memory is still 138.4 MB. Free memory was 101.8 MB in the beginning and 91.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.75 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 91.2 MB in the beginning and 179.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.49 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 161.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4841.35 ms. Allocated memory was 201.9 MB in the beginning and 283.1 MB in the end (delta: 81.3 MB). Free memory was 160.3 MB in the beginning and 120.3 MB in the end (delta: 40.0 MB). Peak memory consumption was 121.3 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 - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: 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: 13]: Loop Invariant Derived loop invariant: !(0 == global) - ProcedureContractResult [Line: 12]: Procedure Contract for main [2020-07-08 22:23:23,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure main: !(global == 0) || ((global == pd && 0 == pd) && unknown-#memory_int-unknown[global][global + 4] == unknown-#memory_int-unknown[pd][pd]) - ProcedureContractResult [Line: 7]: Procedure Contract for assign [2020-07-08 22:23:23,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-08 22:23:23,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure assign: ((((pa == pa && pa == pa) && (pb == pa || ((!(pa == pb) || pb == pb) && (pa == pb || !(pa == pb))))) && (unknown-#memory_int-unknown[pa][pa] == unknown-#memory_int-unknown[pa][pb] || !(pa == pb))) && (pb == pa || !(pb == pa))) || !(global == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 56 SDslu, 28 SDs, 0 SdLazy, 195 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 34 LocationsWithAnnotation, 34 PreInvPairs, 38 NumberOfFragments, 641 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 384 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 5040 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...