/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 22:05:31,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:05:31,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:05:31,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 22:05:31,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 22:05:31,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 22:05:31,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 22:05:31,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 22:05:31,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 22:05:31,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 22:05:31,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 22:05:31,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 22:05:31,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:05:31,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:05:31,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:05:31,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:05:31,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:05:31,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:05:31,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:05:31,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:05:31,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:05:31,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:05:31,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:05:31,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:05:31,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 22:05:31,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 22:05:31,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 22:05:31,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 22:05:31,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 22:05:31,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 22:05:31,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 22:05:31,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 22:05:31,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 22:05:31,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 22:05:31,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 22:05:31,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 22:05:31,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 22:05:31,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 22:05:31,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:05:31,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:05:31,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:05:31,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 22:05:31,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:05:31,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:05:31,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:05:31,164 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:05:31,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:05:31,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:05:31,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:05:31,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:05:31,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:05:31,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:05:31,167 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:05:31,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:05:31,167 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:05:31,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:05:31,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:05:31,168 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:05:31,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:05:31,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:05:31,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:05:31,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:05:31,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:05:31,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:05:31,170 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 [2020-09-04 22:05:31,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:05:31,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:05:31,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:05:31,688 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:05:31,689 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:05:31,690 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure-2.i [2020-09-04 22:05:31,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39fa566a0/3aa8da13a96842dc94becf3b30028383/FLAG181ff4f14 [2020-09-04 22:05:32,370 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:05:32,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/nested_structure-2.i [2020-09-04 22:05:32,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39fa566a0/3aa8da13a96842dc94becf3b30028383/FLAG181ff4f14 [2020-09-04 22:05:32,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39fa566a0/3aa8da13a96842dc94becf3b30028383 [2020-09-04 22:05:32,709 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:05:32,712 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:05:32,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:05:32,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:05:32,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:05:32,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:05:32" (1/1) ... [2020-09-04 22:05:32,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df08b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:32, skipping insertion in model container [2020-09-04 22:05:32,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:05:32" (1/1) ... [2020-09-04 22:05:32,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:05:32,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:05:33,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:05:33,039 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:05:33,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:05:33,089 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:05:33,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33 WrapperNode [2020-09-04 22:05:33,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:05:33,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:05:33,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:05:33,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:05:33,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33" (1/1) ... [2020-09-04 22:05:33,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33" (1/1) ... [2020-09-04 22:05:33,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33" (1/1) ... [2020-09-04 22:05:33,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33" (1/1) ... [2020-09-04 22:05:33,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33" (1/1) ... [2020-09-04 22:05:33,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33" (1/1) ... [2020-09-04 22:05:33,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33" (1/1) ... [2020-09-04 22:05:33,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:05:33,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:05:33,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:05:33,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:05:33,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 22:05:33,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:05:33,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:05:33,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 22:05:33,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:05:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:05:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 22:05:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 22:05:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-09-04 22:05:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-09-04 22:05:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:05:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 22:05:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 22:05:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-04 22:05:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 22:05:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 22:05:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 22:05:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:05:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:05:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:05:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 22:05:33,662 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:05:33,662 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 22:05:33,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:05:33 BoogieIcfgContainer [2020-09-04 22:05:33,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:05:33,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:05:33,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:05:33,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:05:33,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:05:32" (1/3) ... [2020-09-04 22:05:33,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fb028b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:05:33, skipping insertion in model container [2020-09-04 22:05:33,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:33" (2/3) ... [2020-09-04 22:05:33,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fb028b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:05:33, skipping insertion in model container [2020-09-04 22:05:33,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:05:33" (3/3) ... [2020-09-04 22:05:33,683 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure-2.i [2020-09-04 22:05:33,699 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:05:33,714 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 22:05:33,741 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 22:05:33,784 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:05:33,784 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:05:33,784 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:05:33,784 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:05:33,785 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:05:33,785 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:05:33,785 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:05:33,785 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:05:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-04 22:05:33,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-04 22:05:33,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:05:33,836 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] [2020-09-04 22:05:33,837 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:05:33,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:05:33,848 INFO L82 PathProgramCache]: Analyzing trace with hash 42045937, now seen corresponding path program 1 times [2020-09-04 22:05:33,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:05:33,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901151746] [2020-09-04 22:05:33,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:05:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:34,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:05:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 22:05:34,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901151746] [2020-09-04 22:05:34,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:05:34,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-09-04 22:05:34,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811462156] [2020-09-04 22:05:34,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-04 22:05:34,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:05:34,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-04 22:05:34,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-09-04 22:05:34,917 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 18 states. [2020-09-04 22:05:35,587 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2020-09-04 22:05:36,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:05:36,236 INFO L93 Difference]: Finished difference Result 60 states and 59 transitions. [2020-09-04 22:05:36,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-04 22:05:36,239 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 27 [2020-09-04 22:05:36,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:05:36,249 INFO L225 Difference]: With dead ends: 60 [2020-09-04 22:05:36,249 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 22:05:36,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=202, Invalid=1058, Unknown=0, NotChecked=0, Total=1260 [2020-09-04 22:05:36,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 22:05:36,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 22:05:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 22:05:36,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 22:05:36,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-09-04 22:05:36,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:05:36,288 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 22:05:36,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-04 22:05:36,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 22:05:36,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 22:05:36,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:05:36,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 22:05:37,071 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:05:37,072 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 22:05:37,072 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 22:05:37,072 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:05:37,072 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:05:37,072 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:05:37,073 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:05:37,073 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 22:05:37,073 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 22:05:37,073 INFO L264 CegarLoopResult]: At program point L33(line 33) 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))))) [2020-09-04 22:05:37,074 INFO L264 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (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|) (= (let ((.cse2 (+ |main_#t~mem2.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) .cse2)) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) .cse2))) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= |main_#t~mem2.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2020-09-04 22:05:37,074 INFO L264 CegarLoopResult]: At program point L31(line 31) 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|))))) [2020-09-04 22:05:37,075 INFO L264 CegarLoopResult]: At program point L33-2(line 33) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (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|) (= (let ((.cse2 (+ |main_#t~mem2.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) .cse2)) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) .cse2))) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= |main_#t~mem2.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1) (= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|)))))) [2020-09-04 22:05:37,075 INFO L264 CegarLoopResult]: At program point L31-1(line 31) 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|))))) [2020-09-04 22:05:37,075 INFO L264 CegarLoopResult]: At program point L33-3(line 33) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= |main_#t~mem4| 4) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (= (let ((.cse2 (+ |main_#t~mem2.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) .cse2)) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) .cse2))) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= |main_#t~mem2.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1) (= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|)))))) [2020-09-04 22:05:37,076 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= (select |#valid| |main_~#im~0.base|) 1)) [2020-09-04 22:05:37,076 INFO L264 CegarLoopResult]: At program point L31-2(line 31) 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|)))))) [2020-09-04 22:05:37,076 INFO L264 CegarLoopResult]: At program point L33-4(line 33) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= |main_#t~mem4| 4) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (= (let ((.cse2 (+ |main_#t~mem2.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) .cse2)) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) .cse2))) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= |main_#t~mem2.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1) (= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|)))))) [2020-09-04 22:05:37,077 INFO L264 CegarLoopResult]: At program point L29-1(line 29) 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)) [2020-09-04 22:05:37,077 INFO L264 CegarLoopResult]: At program point L33-5(line 33) 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)) (= |main_#t~mem4| 4) (= (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) (= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|)))))) [2020-09-04 22:05:37,077 INFO L264 CegarLoopResult]: At program point L31-3(line 31) 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))))) [2020-09-04 22:05:37,078 INFO L264 CegarLoopResult]: At program point L33-6(line 33) 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) (= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|)))))) [2020-09-04 22:05:37,078 INFO L264 CegarLoopResult]: At program point L29-2(line 29) 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))))) [2020-09-04 22:05:37,078 INFO L264 CegarLoopResult]: At program point L31-4(line 31) 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))))) [2020-09-04 22:05:37,079 INFO L264 CegarLoopResult]: At program point L29-3(line 29) 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))))) [2020-09-04 22:05:37,079 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 27 35) the Hoare annotation is: true [2020-09-04 22:05:37,079 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 27 35) the Hoare annotation is: true [2020-09-04 22:05:37,079 INFO L264 CegarLoopResult]: At program point L34(line 34) 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))))) [2020-09-04 22:05:37,080 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (let ((.cse5 (select |#memory_$Pointer$.base| |main_#t~mem0.base|)) (.cse2 (+ |main_~#good~0.offset| 4)) (.cse1 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (let ((.cse0 (select |#memory_int| .cse1)) (.cse3 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2)) (.cse4 (select .cse5 (+ |main_#t~mem0.offset| 4)))) (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= (select .cse0 |main_~#good~0.offset|) 3) (not (= |main_~#good~0.base| .cse1)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_~#inner~0.offset| 0) (= (select .cse0 0) 3) (= (select |#memory_$Pointer$.offset| |main_#t~mem0.base|) (select |#memory_$Pointer$.offset| .cse3)) (not (= .cse4 .cse3)) (= |main_#t~mem0.offset| 0) (= 0 |main_~#im~0.offset|) (not (= .cse1 |main_~#inner~0.base|)) (= (select |#valid| |main_~#im~0.base|) 1) (= .cse5 (select |#memory_$Pointer$.base| .cse3)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (not (= .cse4 |main_~#good~0.base|))))) [2020-09-04 22:05:37,080 INFO L264 CegarLoopResult]: At program point L32-1(line 32) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse4 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2)) (.cse1 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (let ((.cse0 (select |#memory_int| .cse1)) (.cse3 (select |#memory_$Pointer$.offset| .cse4)) (.cse6 (select |#memory_$Pointer$.base| .cse4)) (.cse5 (select |#memory_$Pointer$.base| |main_#t~mem0.base|))) (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= (select .cse0 |main_~#good~0.offset|) 3) (not (= |main_~#good~0.base| .cse1)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_~#inner~0.offset| 0) (= (select .cse0 0) 3) (= (select |#memory_$Pointer$.offset| |main_#t~mem0.base|) .cse3) (= |main_#t~mem1.offset| (select .cse3 4)) (not (= |main_#t~mem1.base| .cse4)) (= |main_#t~mem0.offset| 0) (= 0 |main_~#im~0.offset|) (not (= .cse1 |main_~#inner~0.base|)) (= (select |#valid| |main_~#im~0.base|) 1) (= .cse5 .cse6) (= |main_#t~mem1.base| (select .cse6 4)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (not (= (select .cse5 (+ |main_#t~mem0.offset| 4)) |main_~#good~0.base|)))))) [2020-09-04 22:05:37,080 INFO L264 CegarLoopResult]: At program point L30(line 30) 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|))) [2020-09-04 22:05:37,081 INFO L264 CegarLoopResult]: At program point L32-2(line 32) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse1 (select (select |#memory_$Pointer$.base| .cse0) 4)) (.cse2 (select (select |#memory_$Pointer$.offset| .cse0) 4))) (and (not (= |main_#t~mem1.base| .cse0)) (= (select (select |#memory_int| .cse1) .cse2) 4) (= 0 |main_~#im~0.offset|) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= |main_#t~mem1.base| .cse1) (not (= |main_~#good~0.base| |main_#t~mem1.base|)) (= |main_#t~mem1.offset| .cse2))))) [2020-09-04 22:05:37,081 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 27 35) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-04 22:05:37,081 INFO L264 CegarLoopResult]: At program point L30-1(line 30) 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|))) [2020-09-04 22:05:37,081 INFO L264 CegarLoopResult]: At program point L32-3(line 32) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse1 (select (select |#memory_$Pointer$.base| .cse0) 4)) (.cse2 (select (select |#memory_$Pointer$.offset| .cse0) 4))) (and (not (= |main_#t~mem1.base| .cse0)) (= (select (select |#memory_int| .cse1) .cse2) 4) (= 0 |main_~#im~0.offset|) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= |main_#t~mem1.base| .cse1) (not (= |main_~#good~0.base| |main_#t~mem1.base|)) (= |main_#t~mem1.offset| .cse2))))) [2020-09-04 22:05:37,082 INFO L264 CegarLoopResult]: At program point L30-2(line 30) 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|)))) [2020-09-04 22:05:37,082 INFO L264 CegarLoopResult]: At program point L30-3(line 30) 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))))) [2020-09-04 22:05:37,082 INFO L264 CegarLoopResult]: At program point L30-4(line 30) 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))))) [2020-09-04 22:05:37,083 INFO L264 CegarLoopResult]: At program point L3-2(lines 2 7) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 22:05:37,083 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2020-09-04 22:05:37,083 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 2 7) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 22:05:37,083 INFO L264 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 22:05:37,083 INFO L264 CegarLoopResult]: At program point L3(lines 3 5) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 22:05:37,084 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 22:05:37,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 10:05:37 BoogieIcfgContainer [2020-09-04 22:05:37,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 22:05:37,120 INFO L168 Benchmark]: Toolchain (without parser) took 4406.52 ms. Allocated memory was 138.4 MB in the beginning and 248.0 MB in the end (delta: 109.6 MB). Free memory was 101.4 MB in the beginning and 108.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 102.2 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:37,121 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:05:37,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.46 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 90.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:37,129 INFO L168 Benchmark]: Boogie Preprocessor took 157.15 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 90.9 MB in the beginning and 178.2 MB in the end (delta: -87.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:37,130 INFO L168 Benchmark]: RCFGBuilder took 421.84 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 160.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:37,131 INFO L168 Benchmark]: TraceAbstraction took 3443.57 ms. Allocated memory was 200.3 MB in the beginning and 248.0 MB in the end (delta: 47.7 MB). Free memory was 159.5 MB in the beginning and 108.8 MB in the end (delta: 50.7 MB). Peak memory consumption was 98.4 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:37,135 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 377.46 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 90.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 157.15 ms. Allocated memory was 138.4 MB in the beginning and 200.3 MB in the end (delta: 61.9 MB). Free memory was 90.9 MB in the beginning and 178.2 MB in the end (delta: -87.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.84 ms. Allocated memory is still 200.3 MB. Free memory was 178.2 MB in the beginning and 160.1 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3443.57 ms. Allocated memory was 200.3 MB in the beginning and 248.0 MB in the end (delta: 47.7 MB). Free memory was 159.5 MB in the beginning and 108.8 MB in the end (delta: 50.7 MB). Peak memory consumption was 98.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 2]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 80 SDslu, 233 SDs, 0 SdLazy, 280 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 44 LocationsWithAnnotation, 44 PreInvPairs, 60 NumberOfFragments, 2065 HoareAnnotationTreeSize, 44 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 44 FomulaSimplificationsInter, 66 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 11908 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...