/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 01:03:45,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 01:03:45,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 01:03:45,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 01:03:45,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 01:03:45,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 01:03:45,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 01:03:45,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 01:03:45,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 01:03:45,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 01:03:45,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 01:03:45,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 01:03:45,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 01:03:45,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 01:03:45,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 01:03:45,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 01:03:45,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 01:03:45,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 01:03:45,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 01:03:45,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 01:03:45,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 01:03:45,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 01:03:45,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 01:03:45,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 01:03:45,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 01:03:45,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 01:03:45,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 01:03:45,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 01:03:45,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 01:03:45,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 01:03:45,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 01:03:45,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 01:03:45,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 01:03:45,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 01:03:45,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 01:03:45,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 01:03:45,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 01:03:45,463 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 01:03:45,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 01:03:45,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 01:03:45,469 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 01:03:45,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 01:03:45,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 01:03:45,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 01:03:45,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 01:03:45,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 01:03:45,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 01:03:45,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 01:03:45,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 01:03:45,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 01:03:45,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 01:03:45,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 01:03:45,473 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 01:03:45,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 01:03:45,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 01:03:45,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 01:03:45,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 01:03:45,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 01:03:45,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 01:03:45,474 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 01:03:45,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 01:03:45,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 01:03:45,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 01:03:45,947 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 01:03:45,947 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 01:03:45,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure-2.i [2020-10-24 01:03:46,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bfe0f65/f103359cef184d8f96eecc1caa386031/FLAGa8f5a38cc [2020-10-24 01:03:46,720 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 01:03:46,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure-2.i [2020-10-24 01:03:46,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bfe0f65/f103359cef184d8f96eecc1caa386031/FLAGa8f5a38cc [2020-10-24 01:03:47,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16bfe0f65/f103359cef184d8f96eecc1caa386031 [2020-10-24 01:03:47,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 01:03:47,120 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 01:03:47,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 01:03:47,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 01:03:47,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 01:03:47,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:03:47" (1/1) ... [2020-10-24 01:03:47,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b16f876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47, skipping insertion in model container [2020-10-24 01:03:47,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:03:47" (1/1) ... [2020-10-24 01:03:47,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 01:03:47,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 01:03:47,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:03:47,405 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 01:03:47,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 01:03:47,444 INFO L208 MainTranslator]: Completed translation [2020-10-24 01:03:47,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47 WrapperNode [2020-10-24 01:03:47,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 01:03:47,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 01:03:47,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 01:03:47,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 01:03:47,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47" (1/1) ... [2020-10-24 01:03:47,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47" (1/1) ... [2020-10-24 01:03:47,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47" (1/1) ... [2020-10-24 01:03:47,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47" (1/1) ... [2020-10-24 01:03:47,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47" (1/1) ... [2020-10-24 01:03:47,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47" (1/1) ... [2020-10-24 01:03:47,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47" (1/1) ... [2020-10-24 01:03:47,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 01:03:47,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 01:03:47,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 01:03:47,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 01:03:47,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47" (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 [2020-10-24 01:03:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 01:03:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 01:03:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 01:03:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-24 01:03:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 01:03:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 01:03:47,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 01:03:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-24 01:03:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-24 01:03:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 01:03:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 01:03:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 01:03:47,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 01:03:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 01:03:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-24 01:03:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-24 01:03:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 01:03:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 01:03:47,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 01:03:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 01:03:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 01:03:47,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-24 01:03:48,214 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 01:03:48,215 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 01:03:48,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:03:48 BoogieIcfgContainer [2020-10-24 01:03:48,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 01:03:48,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 01:03:48,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 01:03:48,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 01:03:48,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:03:47" (1/3) ... [2020-10-24 01:03:48,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d4ff55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:03:48, skipping insertion in model container [2020-10-24 01:03:48,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:03:47" (2/3) ... [2020-10-24 01:03:48,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d4ff55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:03:48, skipping insertion in model container [2020-10-24 01:03:48,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:03:48" (3/3) ... [2020-10-24 01:03:48,233 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_structure-2.i [2020-10-24 01:03:48,247 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 01:03:48,254 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 01:03:48,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 01:03:48,308 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 01:03:48,308 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 01:03:48,308 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 01:03:48,309 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 01:03:48,309 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 01:03:48,309 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 01:03:48,309 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 01:03:48,309 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 01:03:48,331 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2020-10-24 01:03:48,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-24 01:03:48,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 01:03:48,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 01:03:48,346 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 01:03:48,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 01:03:48,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1020856050, now seen corresponding path program 1 times [2020-10-24 01:03:48,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 01:03:48,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2006281652] [2020-10-24 01:03:48,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 01:03:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:03:49,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 01:03:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 01:03:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 01:03:49,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2006281652] [2020-10-24 01:03:49,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 01:03:49,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-24 01:03:49,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270819758] [2020-10-24 01:03:49,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-24 01:03:49,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 01:03:49,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-24 01:03:49,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-24 01:03:49,412 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 18 states. [2020-10-24 01:03:50,053 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2020-10-24 01:03:50,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 01:03:50,608 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2020-10-24 01:03:50,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-24 01:03:50,610 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 33 [2020-10-24 01:03:50,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 01:03:50,618 INFO L225 Difference]: With dead ends: 70 [2020-10-24 01:03:50,618 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 01:03:50,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=192, Invalid=998, Unknown=0, NotChecked=0, Total=1190 [2020-10-24 01:03:50,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 01:03:50,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 01:03:50,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 01:03:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 01:03:50,652 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-10-24 01:03:50,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 01:03:50,652 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 01:03:50,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-24 01:03:50,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 01:03:50,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 01:03:50,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 01:03:50,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 01:03:51,393 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,393 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,394 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,394 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,394 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,394 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,394 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 01:03:51,395 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 01:03:51,395 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,395 INFO L277 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,395 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,395 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,395 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-24 01:03:51,396 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-24 01:03:51,396 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 01:03:51,396 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 01:03:51,396 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 01:03:51,396 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 01:03:51,396 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 01:03:51,396 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 38 46) the Hoare annotation is: true [2020-10-24 01:03:51,397 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 38 46) the Hoare annotation is: true [2020-10-24 01:03:51,397 INFO L270 CegarLoopResult]: At program point L44(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2020-10-24 01:03:51,397 INFO L270 CegarLoopResult]: At program point L44-1(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1))))) [2020-10-24 01:03:51,398 INFO L270 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (let ((.cse0 (select |#memory_int| .cse1))) (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= (select .cse0 |main_~#good~0.offset|) 3) (= 0 |main_~#im~0.offset|) (not (= .cse1 |main_~#inner~0.base|)) (= |main_~#inner~0.offset| 0) (= (select .cse0 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|))))) [2020-10-24 01:03:51,398 INFO L270 CegarLoopResult]: At program point L44-2(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1) (= (select (select |#memory_int| |main_#t~mem6.base|) |main_#t~mem6.offset|) 4))))) [2020-10-24 01:03:51,398 INFO L270 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (let ((.cse0 (select |#memory_int| .cse1))) (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= (select .cse0 |main_~#good~0.offset|) 3) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse1)) (not (= .cse1 |main_~#inner~0.base|)) (= |main_~#inner~0.offset| 0) (= (select .cse0 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|))))) [2020-10-24 01:03:51,399 INFO L270 CegarLoopResult]: At program point L44-3(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1) (= (select (select |#memory_int| |main_#t~mem6.base|) |main_#t~mem6.offset|) 4) (= |main_#t~mem7| 4))))) [2020-10-24 01:03:51,399 INFO L270 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= (select |#valid| |main_~#im~0.base|) 1)) [2020-10-24 01:03:51,399 INFO L270 CegarLoopResult]: At program point L42-2(line 42) the Hoare annotation is: (let ((.cse4 (+ |main_~#good~0.offset| 4))) (let ((.cse3 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) (.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse4))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4)) (.cse2 (select |#memory_int| .cse3))) (and (not (= .cse0 .cse1)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= (select .cse2 |main_~#good~0.offset|) 3) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse3)) (not (= .cse3 |main_~#inner~0.base|)) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse4) 0) (= |main_~#inner~0.offset| 0) (= (select .cse2 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))))) [2020-10-24 01:03:51,400 INFO L270 CegarLoopResult]: At program point L44-4(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1) (= (select (select |#memory_int| |main_#t~mem6.base|) |main_#t~mem6.offset|) 4) (= |main_#t~mem7| 4))))) [2020-10-24 01:03:51,400 INFO L270 CegarLoopResult]: At program point L40-1(line 40) the Hoare annotation is: (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= 0 |main_~#im~0.offset|) (= (select |#valid| |main_~#im~0.base|) 1)) [2020-10-24 01:03:51,400 INFO L270 CegarLoopResult]: At program point L44-5(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1) (= |main_#t~mem7| 4))))) [2020-10-24 01:03:51,400 INFO L270 CegarLoopResult]: At program point L42-3(line 42) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2020-10-24 01:03:51,401 INFO L270 CegarLoopResult]: At program point L44-6(line 44) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem5.offset| 0) (= 4 (let ((.cse3 (+ |main_#t~mem5.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem5.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem5.base|) .cse3)))) (= (select |#valid| |main_~#im~0.base|) 1))))) [2020-10-24 01:03:51,401 INFO L270 CegarLoopResult]: At program point L40-2(line 40) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2020-10-24 01:03:51,401 INFO L270 CegarLoopResult]: At program point L42-4(line 42) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2020-10-24 01:03:51,401 INFO L270 CegarLoopResult]: At program point L40-3(line 40) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2020-10-24 01:03:51,402 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 38 46) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 01:03:51,402 INFO L270 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2020-10-24 01:03:51,402 INFO L270 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (let ((.cse5 (+ |main_~#good~0.offset| 4)) (.cse1 (select |#memory_$Pointer$.base| |main_#t~mem3.base|)) (.cse3 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (let ((.cse2 (select |#memory_int| .cse3)) (.cse4 (select .cse1 (+ |main_#t~mem3.offset| 4))) (.cse0 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse5))) (and (= (select |#memory_$Pointer$.base| .cse0) .cse1) (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= (select .cse2 |main_~#good~0.offset|) 3) (not (= |main_~#good~0.base| .cse3)) (not (= |main_~#good~0.base| .cse4)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse5) 0) (= |main_~#inner~0.offset| 0) (= (select .cse2 0) 3) (= (select |#memory_$Pointer$.offset| |main_#t~mem3.base|) (select |#memory_$Pointer$.offset| .cse0)) (= |main_#t~mem3.offset| 0) (= 0 |main_~#im~0.offset|) (not (= .cse3 |main_~#inner~0.base|)) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (not (= .cse4 .cse0))))) [2020-10-24 01:03:51,403 INFO L270 CegarLoopResult]: At program point L43-1(line 43) the Hoare annotation is: (let ((.cse5 (+ |main_~#good~0.offset| 4))) (let ((.cse6 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse5)) (.cse4 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (let ((.cse2 (select |#memory_int| .cse4)) (.cse3 (select |#memory_$Pointer$.offset| .cse6)) (.cse0 (select |#memory_$Pointer$.base| .cse6)) (.cse1 (select |#memory_$Pointer$.base| |main_#t~mem3.base|))) (and (= .cse0 .cse1) (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= (select .cse2 |main_~#good~0.offset|) 3) (= (select .cse3 4) |main_#t~mem4.offset|) (not (= |main_~#good~0.base| .cse4)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse5) 0) (= |main_~#inner~0.offset| 0) (= (select .cse2 0) 3) (= (select |#memory_$Pointer$.offset| |main_#t~mem3.base|) .cse3) (= |main_#t~mem4.base| (select .cse0 4)) (= |main_#t~mem3.offset| 0) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| |main_#t~mem4.base|)) (not (= .cse4 |main_~#inner~0.base|)) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (not (= (select .cse1 (+ |main_#t~mem3.offset| 4)) .cse6)))))) [2020-10-24 01:03:51,403 INFO L270 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= 0 |main_~#im~0.offset|) (= |main_~#inner~0.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|))) [2020-10-24 01:03:51,403 INFO L270 CegarLoopResult]: At program point L43-2(line 43) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse1 (select (select |#memory_$Pointer$.offset| .cse2) 4)) (.cse0 (select (select |#memory_$Pointer$.base| .cse2) 4))) (and (= (select (select |#memory_int| .cse0) .cse1) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| |main_#t~mem4.base|)) (= .cse1 |main_#t~mem4.offset|) (not (= |main_#t~mem4.base| .cse2)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= |main_#t~mem4.base| .cse0))))) [2020-10-24 01:03:51,404 INFO L270 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= 0 |main_~#im~0.offset|) (= |main_~#inner~0.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|))) [2020-10-24 01:03:51,404 INFO L270 CegarLoopResult]: At program point L43-3(line 43) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse1 (select (select |#memory_$Pointer$.offset| .cse2) 4)) (.cse0 (select (select |#memory_$Pointer$.base| .cse2) 4))) (and (= (select (select |#memory_int| .cse0) .cse1) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| |main_#t~mem4.base|)) (= .cse1 |main_#t~mem4.offset|) (not (= |main_#t~mem4.base| .cse2)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= |main_#t~mem4.base| .cse0))))) [2020-10-24 01:03:51,404 INFO L270 CegarLoopResult]: At program point L41-2(line 41) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= 0 |main_~#im~0.offset|) (not (= .cse0 |main_~#inner~0.base|)) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse0) 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))) [2020-10-24 01:03:51,404 INFO L270 CegarLoopResult]: At program point L41-3(line 41) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2020-10-24 01:03:51,405 INFO L270 CegarLoopResult]: At program point L41-4(line 41) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2020-10-24 01:03:51,405 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 01:03:51,405 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 13 18) the Hoare annotation is: true [2020-10-24 01:03:51,405 INFO L270 CegarLoopResult]: At program point L14(lines 14 16) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 01:03:51,406 INFO L270 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 01:03:51,406 INFO L270 CegarLoopResult]: At program point L14-2(lines 13 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 01:03:51,406 INFO L270 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 13 18) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 01:03:51,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:03:51 BoogieIcfgContainer [2020-10-24 01:03:51,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 01:03:51,427 INFO L168 Benchmark]: Toolchain (without parser) took 4312.12 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 127.2 MB in the beginning and 68.0 MB in the end (delta: 59.3 MB). Peak memory consumption was 92.3 MB. Max. memory is 8.0 GB. [2020-10-24 01:03:51,428 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 01:03:51,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.93 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 01:03:51,430 INFO L168 Benchmark]: Boogie Preprocessor took 40.30 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 01:03:51,431 INFO L168 Benchmark]: RCFGBuilder took 731.11 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 129.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. [2020-10-24 01:03:51,432 INFO L168 Benchmark]: TraceAbstraction took 3203.21 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 129.3 MB in the beginning and 68.0 MB in the end (delta: 61.4 MB). Peak memory consumption was 93.9 MB. Max. memory is 8.0 GB. [2020-10-24 01:03:51,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 74.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 316.93 ms. Allocated memory is still 151.0 MB. Free memory was 126.5 MB in the beginning and 116.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.30 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 731.11 ms. Allocated memory is still 151.0 MB. Free memory was 115.3 MB in the beginning and 129.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3203.21 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 129.3 MB in the beginning and 68.0 MB in the end (delta: 61.4 MB). Peak memory consumption was 93.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 38]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 13]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 80 SDslu, 267 SDs, 0 SdLazy, 302 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 54 LocationsWithAnnotation, 54 PreInvPairs, 70 NumberOfFragments, 2124 HoareAnnotationTreeSize, 54 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 54 FomulaSimplificationsInter, 137 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 15328 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...