/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/test28-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 05:13:45,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 05:13:45,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 05:13:45,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 05:13:45,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 05:13:45,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 05:13:45,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 05:13:45,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 05:13:45,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 05:13:45,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 05:13:45,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 05:13:45,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 05:13:45,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 05:13:45,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 05:13:45,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 05:13:45,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 05:13:45,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 05:13:45,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 05:13:45,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 05:13:45,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 05:13:45,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 05:13:45,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 05:13:45,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 05:13:45,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 05:13:45,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 05:13:45,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 05:13:45,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 05:13:45,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 05:13:45,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 05:13:45,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 05:13:45,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 05:13:45,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 05:13:45,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 05:13:45,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 05:13:45,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 05:13:45,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 05:13:45,248 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 05:13:45,264 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 05:13:45,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 05:13:45,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 05:13:45,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 05:13:45,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 05:13:45,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 05:13:45,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 05:13:45,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 05:13:45,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 05:13:45,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 05:13:45,268 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 05:13:45,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 05:13:45,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 05:13:45,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 05:13:45,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 05:13:45,270 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 05:13:45,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 05:13:45,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 05:13:45,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 05:13:45,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 05:13:45,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 05:13:45,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 05:13:45,271 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 [2020-07-18 05:13:45,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 05:13:45,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 05:13:45,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 05:13:45,560 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 05:13:45,561 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 05:13:45,562 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test28-1.c [2020-07-18 05:13:45,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c589517c0/9b5d7f96e804496c8f193f5d468e46ae/FLAGa22e24364 [2020-07-18 05:13:46,125 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 05:13:46,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test28-1.c [2020-07-18 05:13:46,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c589517c0/9b5d7f96e804496c8f193f5d468e46ae/FLAGa22e24364 [2020-07-18 05:13:46,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c589517c0/9b5d7f96e804496c8f193f5d468e46ae [2020-07-18 05:13:46,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 05:13:46,570 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 05:13:46,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 05:13:46,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 05:13:46,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 05:13:46,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 05:13:46" (1/1) ... [2020-07-18 05:13:46,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4087cb65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46, skipping insertion in model container [2020-07-18 05:13:46,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 05:13:46" (1/1) ... [2020-07-18 05:13:46,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 05:13:46,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 05:13:46,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 05:13:46,800 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 05:13:46,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 05:13:46,835 INFO L208 MainTranslator]: Completed translation [2020-07-18 05:13:46,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46 WrapperNode [2020-07-18 05:13:46,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 05:13:46,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 05:13:46,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 05:13:46,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 05:13:46,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46" (1/1) ... [2020-07-18 05:13:46,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46" (1/1) ... [2020-07-18 05:13:46,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46" (1/1) ... [2020-07-18 05:13:46,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46" (1/1) ... [2020-07-18 05:13:46,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46" (1/1) ... [2020-07-18 05:13:46,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46" (1/1) ... [2020-07-18 05:13:46,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46" (1/1) ... [2020-07-18 05:13:46,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 05:13:46,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 05:13:46,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 05:13:46,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 05:13:46,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46" (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 [2020-07-18 05:13:47,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 05:13:47,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 05:13:47,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 05:13:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 05:13:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 05:13:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 05:13:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 05:13:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 05:13:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 05:13:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 05:13:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 05:13:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 05:13:47,409 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 05:13:47,410 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 05:13:47,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 05:13:47 BoogieIcfgContainer [2020-07-18 05:13:47,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 05:13:47,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 05:13:47,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 05:13:47,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 05:13:47,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 05:13:46" (1/3) ... [2020-07-18 05:13:47,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3376552a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 05:13:47, skipping insertion in model container [2020-07-18 05:13:47,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 05:13:46" (2/3) ... [2020-07-18 05:13:47,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3376552a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 05:13:47, skipping insertion in model container [2020-07-18 05:13:47,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 05:13:47" (3/3) ... [2020-07-18 05:13:47,422 INFO L109 eAbstractionObserver]: Analyzing ICFG test28-1.c [2020-07-18 05:13:47,433 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 05:13:47,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 05:13:47,454 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 05:13:47,471 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 05:13:47,471 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 05:13:47,471 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 05:13:47,471 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 05:13:47,471 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 05:13:47,472 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 05:13:47,472 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 05:13:47,472 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 05:13:47,488 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-07-18 05:13:47,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-18 05:13:47,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:13:47,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:13:47,500 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:13:47,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:13:47,506 INFO L82 PathProgramCache]: Analyzing trace with hash -374520961, now seen corresponding path program 1 times [2020-07-18 05:13:47,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:13:47,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474521373] [2020-07-18 05:13:47,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:13:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:13:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 05:13:47,752 INFO L280 TraceCheckUtils]: 0: Hoare triple {56#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {48#true} is VALID [2020-07-18 05:13:47,752 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} #valid := #valid[0 := 0]; {48#true} is VALID [2020-07-18 05:13:47,753 INFO L280 TraceCheckUtils]: 2: Hoare triple {48#true} assume 0 < #StackHeapBarrier; {48#true} is VALID [2020-07-18 05:13:47,753 INFO L280 TraceCheckUtils]: 3: Hoare triple {48#true} assume true; {48#true} is VALID [2020-07-18 05:13:47,754 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {48#true} {48#true} #62#return; {48#true} is VALID [2020-07-18 05:13:47,758 INFO L263 TraceCheckUtils]: 0: Hoare triple {48#true} call ULTIMATE.init(); {56#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 05:13:47,758 INFO L280 TraceCheckUtils]: 1: Hoare triple {56#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {48#true} is VALID [2020-07-18 05:13:47,759 INFO L280 TraceCheckUtils]: 2: Hoare triple {48#true} #valid := #valid[0 := 0]; {48#true} is VALID [2020-07-18 05:13:47,759 INFO L280 TraceCheckUtils]: 3: Hoare triple {48#true} assume 0 < #StackHeapBarrier; {48#true} is VALID [2020-07-18 05:13:47,760 INFO L280 TraceCheckUtils]: 4: Hoare triple {48#true} assume true; {48#true} is VALID [2020-07-18 05:13:47,760 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {48#true} {48#true} #62#return; {48#true} is VALID [2020-07-18 05:13:47,761 INFO L263 TraceCheckUtils]: 6: Hoare triple {48#true} call #t~ret4 := main(); {48#true} is VALID [2020-07-18 05:13:47,761 INFO L280 TraceCheckUtils]: 7: Hoare triple {48#true} SUMMARY for call ~#d1~0.base, ~#d1~0.offset := #Ultimate.allocOnStack(8); srcloc: mainENTRY {48#true} is VALID [2020-07-18 05:13:47,762 INFO L280 TraceCheckUtils]: 8: Hoare triple {48#true} SUMMARY for call ~#d2~0.base, ~#d2~0.offset := #Ultimate.allocOnStack(8); srcloc: L12 {48#true} is VALID [2020-07-18 05:13:47,762 INFO L280 TraceCheckUtils]: 9: Hoare triple {48#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {48#true} is VALID [2020-07-18 05:13:47,762 INFO L280 TraceCheckUtils]: 10: Hoare triple {48#true} ~n~0 := #t~nondet0; {48#true} is VALID [2020-07-18 05:13:47,763 INFO L280 TraceCheckUtils]: 11: Hoare triple {48#true} havoc #t~nondet0; {48#true} is VALID [2020-07-18 05:13:47,763 INFO L280 TraceCheckUtils]: 12: Hoare triple {48#true} assume !(0 != ~n~0); {48#true} is VALID [2020-07-18 05:13:47,764 INFO L280 TraceCheckUtils]: 13: Hoare triple {48#true} #t~ite1.base, #t~ite1.offset := ~#d2~0.base, ~#d2~0.offset; {48#true} is VALID [2020-07-18 05:13:47,764 INFO L280 TraceCheckUtils]: 14: Hoare triple {48#true} ~pd~0.base, ~pd~0.offset := #t~ite1.base, #t~ite1.offset; {48#true} is VALID [2020-07-18 05:13:47,765 INFO L280 TraceCheckUtils]: 15: Hoare triple {48#true} havoc #t~ite1.base, #t~ite1.offset; {48#true} is VALID [2020-07-18 05:13:47,765 INFO L280 TraceCheckUtils]: 16: Hoare triple {48#true} assume ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {48#true} is VALID [2020-07-18 05:13:47,766 INFO L280 TraceCheckUtils]: 17: Hoare triple {48#true} SUMMARY for call write~int(0, ~pd~0.base, ~pd~0.offset, 4); srcloc: L16 {48#true} is VALID [2020-07-18 05:13:47,766 INFO L280 TraceCheckUtils]: 18: Hoare triple {48#true} #t~short3 := ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {48#true} is VALID [2020-07-18 05:13:47,769 INFO L280 TraceCheckUtils]: 19: Hoare triple {48#true} assume !#t~short3; {55#(not |main_#t~short3|)} is VALID [2020-07-18 05:13:47,770 INFO L280 TraceCheckUtils]: 20: Hoare triple {55#(not |main_#t~short3|)} assume #t~short3; {49#false} is VALID [2020-07-18 05:13:47,770 INFO L280 TraceCheckUtils]: 21: Hoare triple {49#false} havoc #t~short3; {49#false} is VALID [2020-07-18 05:13:47,771 INFO L280 TraceCheckUtils]: 22: Hoare triple {49#false} havoc #t~mem2; {49#false} is VALID [2020-07-18 05:13:47,771 INFO L280 TraceCheckUtils]: 23: Hoare triple {49#false} assume !false; {49#false} is VALID [2020-07-18 05:13:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 05:13:47,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474521373] [2020-07-18 05:13:47,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 05:13:47,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 05:13:47,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869598934] [2020-07-18 05:13:47,786 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-18 05:13:47,789 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 05:13:47,793 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 05:13:47,841 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:13:47,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 05:13:47,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 05:13:47,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 05:13:47,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 05:13:47,855 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2020-07-18 05:13:48,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:13:48,130 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2020-07-18 05:13:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 05:13:48,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-18 05:13:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 05:13:48,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 05:13:48,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 57 transitions. [2020-07-18 05:13:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 05:13:48,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 57 transitions. [2020-07-18 05:13:48,157 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 57 transitions. [2020-07-18 05:13:48,253 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:13:48,266 INFO L225 Difference]: With dead ends: 54 [2020-07-18 05:13:48,266 INFO L226 Difference]: Without dead ends: 29 [2020-07-18 05:13:48,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 05:13:48,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-18 05:13:48,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-18 05:13:48,327 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 05:13:48,328 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 29 states. [2020-07-18 05:13:48,329 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-18 05:13:48,329 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-18 05:13:48,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:13:48,333 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-07-18 05:13:48,334 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-07-18 05:13:48,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:13:48,335 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:13:48,335 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-18 05:13:48,335 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-18 05:13:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 05:13:48,339 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-07-18 05:13:48,340 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-07-18 05:13:48,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 05:13:48,340 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 05:13:48,341 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 05:13:48,341 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 05:13:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-18 05:13:48,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-07-18 05:13:48,346 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2020-07-18 05:13:48,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 05:13:48,347 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-07-18 05:13:48,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 05:13:48,347 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states and 30 transitions. [2020-07-18 05:13:48,383 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 05:13:48,383 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-07-18 05:13:48,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-18 05:13:48,384 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 05:13:48,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 05:13:48,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 05:13:48,385 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 05:13:48,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 05:13:48,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1400624444, now seen corresponding path program 1 times [2020-07-18 05:13:48,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 05:13:48,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545611704] [2020-07-18 05:13:48,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 05:13:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 05:13:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 05:13:48,467 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 05:13:48,467 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 05:13:48,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 05:13:48,509 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 05:13:48,514 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 05:13:48,515 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 05:13:48,515 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 05:13:48,515 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 05:13:48,515 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 05:13:48,515 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 05:13:48,515 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-18 05:13:48,515 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 05:13:48,515 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 05:13:48,516 WARN L170 areAnnotationChecker]: L12-1 has no Hoare annotation [2020-07-18 05:13:48,516 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 05:13:48,516 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-18 05:13:48,516 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 05:13:48,516 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L14-4 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L14-5 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-18 05:13:48,517 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-18 05:13:48,518 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-18 05:13:48,518 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-18 05:13:48,518 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-18 05:13:48,518 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-18 05:13:48,518 WARN L170 areAnnotationChecker]: L20-4 has no Hoare annotation [2020-07-18 05:13:48,518 WARN L170 areAnnotationChecker]: L20-4 has no Hoare annotation [2020-07-18 05:13:48,518 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-18 05:13:48,520 WARN L170 areAnnotationChecker]: L20-5 has no Hoare annotation [2020-07-18 05:13:48,520 WARN L170 areAnnotationChecker]: L20-7 has no Hoare annotation [2020-07-18 05:13:48,521 WARN L170 areAnnotationChecker]: L20-6 has no Hoare annotation [2020-07-18 05:13:48,521 WARN L170 areAnnotationChecker]: L20-8 has no Hoare annotation [2020-07-18 05:13:48,521 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-18 05:13:48,521 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-18 05:13:48,521 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-18 05:13:48,521 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-18 05:13:48,521 WARN L170 areAnnotationChecker]: L12-2 has no Hoare annotation [2020-07-18 05:13:48,522 WARN L170 areAnnotationChecker]: L12-6 has no Hoare annotation [2020-07-18 05:13:48,522 WARN L170 areAnnotationChecker]: L12-3 has no Hoare annotation [2020-07-18 05:13:48,522 WARN L170 areAnnotationChecker]: L12-7 has no Hoare annotation [2020-07-18 05:13:48,522 WARN L170 areAnnotationChecker]: L12-4 has no Hoare annotation [2020-07-18 05:13:48,522 WARN L170 areAnnotationChecker]: L12-8 has no Hoare annotation [2020-07-18 05:13:48,522 WARN L170 areAnnotationChecker]: L12-5 has no Hoare annotation [2020-07-18 05:13:48,522 WARN L170 areAnnotationChecker]: L12-9 has no Hoare annotation [2020-07-18 05:13:48,523 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 05:13:48,523 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 05:13:48,523 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 05:13:48,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 05:13:48 BoogieIcfgContainer [2020-07-18 05:13:48,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 05:13:48,538 INFO L168 Benchmark]: Toolchain (without parser) took 1968.10 ms. Allocated memory was 139.5 MB in the beginning and 236.5 MB in the end (delta: 97.0 MB). Free memory was 104.6 MB in the beginning and 183.6 MB in the end (delta: -79.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2020-07-18 05:13:48,541 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 05:13:48,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.38 ms. Allocated memory is still 139.5 MB. Free memory was 104.2 MB in the beginning and 93.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-18 05:13:48,543 INFO L168 Benchmark]: Boogie Preprocessor took 123.13 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 93.8 MB in the beginning and 181.0 MB in the end (delta: -87.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-07-18 05:13:48,544 INFO L168 Benchmark]: RCFGBuilder took 453.74 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 159.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-07-18 05:13:48,546 INFO L168 Benchmark]: TraceAbstraction took 1118.95 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 158.7 MB in the beginning and 183.6 MB in the end (delta: -24.9 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. [2020-07-18 05:13:48,556 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 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 265.38 ms. Allocated memory is still 139.5 MB. Free memory was 104.2 MB in the beginning and 93.8 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.13 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 93.8 MB in the beginning and 181.0 MB in the end (delta: -87.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 453.74 ms. Allocated memory is still 203.4 MB. Free memory was 181.0 MB in the beginning and 159.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1118.95 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 158.7 MB in the beginning and 183.6 MB in the end (delta: -24.9 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] struct dummy d1, d2; VAL [d1={3:0}, d2={2:0}] [L13] int n = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, d1={3:0}, d2={2:0}, n=0] [L14] EXPR n ? &d1 : &d2 VAL [d1={3:0}, d2={2:0}, n=0, n ? &d1 : &d2={2:0}] [L14] struct dummy *pd = n ? &d1 : &d2; VAL [d1={3:0}, d2={2:0}, n=0, n ? &d1 : &d2={2:0}, pd={2:0}] [L15] COND TRUE pd == &d2 VAL [d1={3:0}, d2={2:0}, n=0, pd={2:0}] [L16] pd->a = 0 VAL [d1={3:0}, d2={2:0}, n=0, pd={2:0}] [L20] pd == &d2 && d2.b != 0 VAL [d1={3:0}, d2={2:0}, n=0, pd={2:0}, pd == &d2 && d2.b != 0=1] [L20] EXPR d2.b VAL [d1={3:0}, d2={2:0}, d2.b=10, n=0, pd={2:0}, pd == &d2 && d2.b != 0=1] [L20] pd == &d2 && d2.b != 0 VAL [d1={3:0}, d2={2:0}, d2.b=10, n=0, pd={2:0}, pd == &d2 && d2.b != 0=1] [L20] COND TRUE pd == &d2 && d2.b != 0 VAL [d1={3:0}, d2={2:0}, d2.b=10, n=0, pd={2:0}, pd == &d2 && d2.b != 0=1] [L26] __VERIFIER_error() VAL [d1={3:0}, d2={2:0}, n=0, pd={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 1 SDslu, 38 SDs, 0 SdLazy, 44 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 759 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 incorrect! Received shutdown request...