/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/nested_structure_noptr-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 22:21:03,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 22:21:03,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 22:21:03,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-08 22:21:03,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 22:21:03,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 22:21:03,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 22:21:03,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 22:21:03,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 22:21:03,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 22:21:03,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 22:21:03,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 22:21:03,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 22:21:03,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 22:21:03,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 22:21:03,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 22:21:03,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 22:21:03,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 22:21:03,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 22:21:03,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 22:21:03,617 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 22:21:03,625 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 22:21:03,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 22:21:03,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 22:21:03,627 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 22:21:03,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 22:21:03,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 22:21:03,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 22:21:03,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 22:21:03,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 22:21:03,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 22:21:03,628 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 22:21:03,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 22:21:03,629 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 22:21:03,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 22:21:03,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 22:21:03,629 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 22:21:03,630 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 22:21:03,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 22:21:03,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 22:21:03,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 22:21:03,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 22:21:03,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 22:21:03,631 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 22:21:03,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 22:21:03,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 22:21:03,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 22:21:03,914 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 22:21:03,914 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 22:21:03,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure_noptr-1.i [2020-07-08 22:21:03,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abef0eda3/e3c9588323f54ef19c6f4f3864e5c246/FLAG62ccc205d [2020-07-08 22:21:04,418 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 22:21:04,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure_noptr-1.i [2020-07-08 22:21:04,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abef0eda3/e3c9588323f54ef19c6f4f3864e5c246/FLAG62ccc205d [2020-07-08 22:21:04,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abef0eda3/e3c9588323f54ef19c6f4f3864e5c246 [2020-07-08 22:21:04,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 22:21:04,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 22:21:04,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 22:21:04,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 22:21:04,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 22:21:04,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:21:04" (1/1) ... [2020-07-08 22:21:04,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461264cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:04, skipping insertion in model container [2020-07-08 22:21:04,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:21:04" (1/1) ... [2020-07-08 22:21:04,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 22:21:04,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 22:21:05,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:21:05,048 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 22:21:05,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:21:05,092 INFO L208 MainTranslator]: Completed translation [2020-07-08 22:21:05,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05 WrapperNode [2020-07-08 22:21:05,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 22:21:05,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 22:21:05,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 22:21:05,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 22:21:05,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05" (1/1) ... [2020-07-08 22:21:05,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05" (1/1) ... [2020-07-08 22:21:05,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05" (1/1) ... [2020-07-08 22:21:05,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05" (1/1) ... [2020-07-08 22:21:05,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05" (1/1) ... [2020-07-08 22:21:05,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05" (1/1) ... [2020-07-08 22:21:05,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05" (1/1) ... [2020-07-08 22:21:05,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 22:21:05,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 22:21:05,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 22:21:05,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 22:21:05,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05" (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 22:21:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 22:21:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 22:21:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 22:21:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 22:21:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 22:21:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 22:21:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-08 22:21:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-07-08 22:21:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-07-08 22:21:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 22:21:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 22:21:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-08 22:21:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 22:21:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 22:21:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 22:21:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 22:21:05,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 22:21:05,525 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 22:21:05,525 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-08 22:21:05,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:21:05 BoogieIcfgContainer [2020-07-08 22:21:05,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 22:21:05,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 22:21:05,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 22:21:05,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 22:21:05,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 10:21:04" (1/3) ... [2020-07-08 22:21:05,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74838646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:21:05, skipping insertion in model container [2020-07-08 22:21:05,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:21:05" (2/3) ... [2020-07-08 22:21:05,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74838646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:21:05, skipping insertion in model container [2020-07-08 22:21:05,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:21:05" (3/3) ... [2020-07-08 22:21:05,537 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure_noptr-1.i [2020-07-08 22:21:05,551 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 22:21:05,560 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 22:21:05,576 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 22:21:05,599 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 22:21:05,599 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 22:21:05,599 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 22:21:05,599 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 22:21:05,599 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 22:21:05,600 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 22:21:05,600 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 22:21:05,600 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 22:21:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-07-08 22:21:05,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-08 22:21:05,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:21:05,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:21:05,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:21:05,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:21:05,633 INFO L82 PathProgramCache]: Analyzing trace with hash 515777756, now seen corresponding path program 1 times [2020-07-08 22:21:05,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:21:05,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839608210] [2020-07-08 22:21:05,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:21:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:21:06,000 INFO L280 TraceCheckUtils]: 0: Hoare triple {42#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {31#true} is VALID [2020-07-08 22:21:06,001 INFO L280 TraceCheckUtils]: 1: Hoare triple {31#true} #valid := #valid[0 := 0]; {31#true} is VALID [2020-07-08 22:21:06,001 INFO L280 TraceCheckUtils]: 2: Hoare triple {31#true} assume 0 < #StackHeapBarrier; {31#true} is VALID [2020-07-08 22:21:06,002 INFO L280 TraceCheckUtils]: 3: Hoare triple {31#true} assume true; {31#true} is VALID [2020-07-08 22:21:06,002 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {31#true} {31#true} #33#return; {31#true} is VALID [2020-07-08 22:21:06,006 INFO L263 TraceCheckUtils]: 0: Hoare triple {31#true} call ULTIMATE.init(); {42#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:21:06,006 INFO L280 TraceCheckUtils]: 1: Hoare triple {42#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {31#true} is VALID [2020-07-08 22:21:06,007 INFO L280 TraceCheckUtils]: 2: Hoare triple {31#true} #valid := #valid[0 := 0]; {31#true} is VALID [2020-07-08 22:21:06,007 INFO L280 TraceCheckUtils]: 3: Hoare triple {31#true} assume 0 < #StackHeapBarrier; {31#true} is VALID [2020-07-08 22:21:06,008 INFO L280 TraceCheckUtils]: 4: Hoare triple {31#true} assume true; {31#true} is VALID [2020-07-08 22:21:06,008 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {31#true} {31#true} #33#return; {31#true} is VALID [2020-07-08 22:21:06,008 INFO L263 TraceCheckUtils]: 6: Hoare triple {31#true} call #t~ret1 := main(); {31#true} is VALID [2020-07-08 22:21:06,009 INFO L280 TraceCheckUtils]: 7: Hoare triple {31#true} SUMMARY for call ~#good~0.base, ~#good~0.offset := #Ultimate.allocOnStack(12); srcloc: mainENTRY {31#true} is VALID [2020-07-08 22:21:06,009 INFO L280 TraceCheckUtils]: 8: Hoare triple {31#true} SUMMARY for call write~init~int(1, ~#good~0.base, ~#good~0.offset, 4); srcloc: L29 {31#true} is VALID [2020-07-08 22:21:06,010 INFO L280 TraceCheckUtils]: 9: Hoare triple {31#true} SUMMARY for call write~init~int(2, ~#good~0.base, 4 + ~#good~0.offset, 4); srcloc: L29-1 {31#true} is VALID [2020-07-08 22:21:06,010 INFO L280 TraceCheckUtils]: 10: Hoare triple {31#true} SUMMARY for call write~init~int(3, ~#good~0.base, 8 + ~#good~0.offset, 4); srcloc: L29-2 {31#true} is VALID [2020-07-08 22:21:06,012 INFO L280 TraceCheckUtils]: 11: Hoare triple {31#true} SUMMARY for call write~int(4, ~#good~0.base, 8 + ~#good~0.offset, 4); srcloc: L29-3 {38#(= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8)))} is VALID [2020-07-08 22:21:06,013 INFO L280 TraceCheckUtils]: 12: Hoare triple {38#(= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8)))} SUMMARY for call #t~mem0 := read~int(~#good~0.base, 8 + ~#good~0.offset, 4); srcloc: L30 {39#(= 4 |main_#t~mem0|)} is VALID [2020-07-08 22:21:06,015 INFO L263 TraceCheckUtils]: 13: Hoare triple {39#(= 4 |main_#t~mem0|)} call __VERIFIER_assert((if 4 == #t~mem0 then 1 else 0)); {40#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 22:21:06,016 INFO L280 TraceCheckUtils]: 14: Hoare triple {40#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {41#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 22:21:06,017 INFO L280 TraceCheckUtils]: 15: Hoare triple {41#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {32#false} is VALID [2020-07-08 22:21:06,018 INFO L280 TraceCheckUtils]: 16: Hoare triple {32#false} assume !false; {32#false} is VALID [2020-07-08 22:21:06,021 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 22:21:06,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839608210] [2020-07-08 22:21:06,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:21:06,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 22:21:06,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723673616] [2020-07-08 22:21:06,031 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-07-08 22:21:06,033 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:21:06,037 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 22:21:06,082 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:21:06,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 22:21:06,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:21:06,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 22:21:06,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-08 22:21:06,097 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 7 states. [2020-07-08 22:21:06,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:21:06,519 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-07-08 22:21:06,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-08 22:21:06,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-07-08 22:21:06,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:21:06,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 22:21:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 37 transitions. [2020-07-08 22:21:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 22:21:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 37 transitions. [2020-07-08 22:21:06,540 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 37 transitions. [2020-07-08 22:21:06,592 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 22:21:06,599 INFO L225 Difference]: With dead ends: 38 [2020-07-08 22:21:06,599 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 22:21:06,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-08 22:21:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 22:21:06,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 22:21:06,629 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:21:06,629 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 22:21:06,630 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 22:21:06,630 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 22:21:06,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:21:06,631 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 22:21:06,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 22:21:06,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:21:06,632 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:21:06,632 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 22:21:06,632 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 22:21:06,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:21:06,633 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 22:21:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 22:21:06,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:21:06,633 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:21:06,634 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:21:06,634 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:21:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 22:21:06,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 22:21:06,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-08 22:21:06,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:21:06,637 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 22:21:06,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 22:21:06,637 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-08 22:21:06,637 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 22:21:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 22:21:06,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:21:06,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 22:21:06,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 22:21:06,828 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 22:21:06,828 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-08 22:21:06,829 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-08 22:21:06,829 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 22:21:06,829 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-08 22:21:06,829 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-08 22:21:06,830 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 22:21:06,830 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 22:21:06,830 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-08 22:21:06,830 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) [2020-07-08 22:21:06,830 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) (= 4 |main_#t~mem0|)) [2020-07-08 22:21:06,831 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) [2020-07-08 22:21:06,831 INFO L264 CegarLoopResult]: At program point L31-1(line 31) the Hoare annotation is: (and (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) (= 4 |main_#t~mem0|)) [2020-07-08 22:21:06,831 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 27 33) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-08 22:21:06,831 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-07-08 22:21:06,832 INFO L271 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: true [2020-07-08 22:21:06,832 INFO L271 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: true [2020-07-08 22:21:06,832 INFO L271 CegarLoopResult]: At program point L29-3(line 29) the Hoare annotation is: true [2020-07-08 22:21:06,832 INFO L264 CegarLoopResult]: At program point L29-4(line 29) the Hoare annotation is: (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) [2020-07-08 22:21:06,832 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 27 33) the Hoare annotation is: true [2020-07-08 22:21:06,833 INFO L264 CegarLoopResult]: At program point L29-5(line 29) the Hoare annotation is: (= 4 (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 8))) [2020-07-08 22:21:06,833 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 27 33) the Hoare annotation is: true [2020-07-08 22:21:06,833 INFO L264 CegarLoopResult]: At program point L3-2(lines 2 7) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 22:21:06,833 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2020-07-08 22:21:06,833 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 2 7) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 22:21:06,834 INFO L264 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-08 22:21:06,834 INFO L264 CegarLoopResult]: At program point L3(lines 3 5) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 22:21:06,834 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-08 22:21:06,847 INFO L163 areAnnotationChecker]: CFG has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 22:21:06,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 10:21:06 BoogieIcfgContainer [2020-07-08 22:21:06,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 22:21:06,864 INFO L168 Benchmark]: Toolchain (without parser) took 2025.77 ms. Allocated memory was 138.9 MB in the beginning and 234.9 MB in the end (delta: 95.9 MB). Free memory was 102.8 MB in the beginning and 154.1 MB in the end (delta: -51.3 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2020-07-08 22:21:06,865 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 22:21:06,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.60 ms. Allocated memory is still 138.9 MB. Free memory was 102.6 MB in the beginning and 92.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-08 22:21:06,867 INFO L168 Benchmark]: Boogie Preprocessor took 125.49 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.3 MB in the beginning and 180.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-08 22:21:06,868 INFO L168 Benchmark]: RCFGBuilder took 309.88 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 163.4 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2020-07-08 22:21:06,869 INFO L168 Benchmark]: TraceAbstraction took 1330.33 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 162.8 MB in the beginning and 154.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2020-07-08 22:21:06,873 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 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 254.60 ms. Allocated memory is still 138.9 MB. Free memory was 102.6 MB in the beginning and 92.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.49 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.3 MB in the beginning and 180.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 309.88 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 163.4 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1330.33 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 162.8 MB in the beginning and 154.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 2]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 12 SDslu, 67 SDs, 0 SdLazy, 43 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 28 LocationsWithAnnotation, 28 PreInvPairs, 38 NumberOfFragments, 120 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 66 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 656 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...