/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/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 22:06:10,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:06:10,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:06:10,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 22:06:10,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 22:06:10,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 22:06:10,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 22:06:10,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 22:06:10,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 22:06:10,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 22:06:10,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 22:06:10,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 22:06:10,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:06:10,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:06:10,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:06:10,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:06:10,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:06:10,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:06:10,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:06:10,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:06:10,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:06:10,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:06:10,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:06:10,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:06:10,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 22:06:10,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 22:06:10,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 22:06:10,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 22:06:10,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 22:06:10,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 22:06:10,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 22:06:10,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 22:06:10,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 22:06:10,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 22:06:10,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 22:06:10,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 22:06:10,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 22:06:10,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 22:06:10,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:06:10,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:06:10,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:06:10,449 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 22:06:10,467 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:06:10,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:06:10,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:06:10,469 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:06:10,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:06:10,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:06:10,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:06:10,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:06:10,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:06:10,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:06:10,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:06:10,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:06:10,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:06:10,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:06:10,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:06:10,471 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:06:10,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:06:10,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:06:10,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:06:10,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:06:10,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:06:10,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:06:10,473 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 22:06:10,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:06:10,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:06:10,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:06:10,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:06:10,932 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:06:10,933 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2020-09-04 22:06:11,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f00505de/e0bf96edb44f4ecb9064d06b63862ae4/FLAG3efa4ceff [2020-09-04 22:06:11,537 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:06:11,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test11.c [2020-09-04 22:06:11,546 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f00505de/e0bf96edb44f4ecb9064d06b63862ae4/FLAG3efa4ceff [2020-09-04 22:06:11,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f00505de/e0bf96edb44f4ecb9064d06b63862ae4 [2020-09-04 22:06:11,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:06:11,886 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:06:11,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:06:11,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:06:11,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:06:11,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:06:11" (1/1) ... [2020-09-04 22:06:11,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e0ef97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:11, skipping insertion in model container [2020-09-04 22:06:11,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:06:11" (1/1) ... [2020-09-04 22:06:11,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:06:11,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:06:12,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:06:12,150 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:06:12,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:06:12,195 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:06:12,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12 WrapperNode [2020-09-04 22:06:12,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:06:12,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:06:12,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:06:12,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:06:12,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12" (1/1) ... [2020-09-04 22:06:12,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12" (1/1) ... [2020-09-04 22:06:12,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12" (1/1) ... [2020-09-04 22:06:12,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12" (1/1) ... [2020-09-04 22:06:12,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12" (1/1) ... [2020-09-04 22:06:12,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12" (1/1) ... [2020-09-04 22:06:12,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12" (1/1) ... [2020-09-04 22:06:12,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:06:12,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:06:12,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:06:12,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:06:12,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12" (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 22:06:12,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:06:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:06:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-09-04 22:06:12,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:06:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:06:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 22:06:12,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-04 22:06:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-09-04 22:06:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:06:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 22:06:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 22:06:12,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 22:06:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 22:06:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:06:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:06:12,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:06:12,729 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:06:12,729 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 22:06:12,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:06:12 BoogieIcfgContainer [2020-09-04 22:06:12,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:06:12,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:06:12,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:06:12,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:06:12,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:06:11" (1/3) ... [2020-09-04 22:06:12,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcefd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:06:12, skipping insertion in model container [2020-09-04 22:06:12,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:06:12" (2/3) ... [2020-09-04 22:06:12,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcefd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:06:12, skipping insertion in model container [2020-09-04 22:06:12,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:06:12" (3/3) ... [2020-09-04 22:06:12,746 INFO L109 eAbstractionObserver]: Analyzing ICFG test11.c [2020-09-04 22:06:12,758 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:06:12,774 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 22:06:12,803 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 22:06:12,838 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:06:12,838 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:06:12,839 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:06:12,839 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:06:12,839 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:06:12,839 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:06:12,839 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:06:12,840 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:06:12,857 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2020-09-04 22:06:12,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-04 22:06:12,871 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:06:12,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:06:12,873 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:06:12,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:06:12,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1040052544, now seen corresponding path program 1 times [2020-09-04 22:06:12,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:06:12,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834604322] [2020-09-04 22:06:12,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:06:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:13,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:06:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:13,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 22:06:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:13,287 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 22:06:13,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834604322] [2020-09-04 22:06:13,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:06:13,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 22:06:13,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131065578] [2020-09-04 22:06:13,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 22:06:13,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:06:13,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 22:06:13,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 22:06:13,320 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 6 states. [2020-09-04 22:06:13,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:06:13,609 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2020-09-04 22:06:13,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 22:06:13,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-09-04 22:06:13,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:06:13,628 INFO L225 Difference]: With dead ends: 93 [2020-09-04 22:06:13,628 INFO L226 Difference]: Without dead ends: 59 [2020-09-04 22:06:13,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 22:06:13,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-04 22:06:13,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-04 22:06:13,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-04 22:06:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-09-04 22:06:13,706 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 43 [2020-09-04 22:06:13,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:06:13,708 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-09-04 22:06:13,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 22:06:13,708 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-09-04 22:06:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 22:06:13,712 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:06:13,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:06:13,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:06:13,713 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:06:13,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:06:13,714 INFO L82 PathProgramCache]: Analyzing trace with hash -981249608, now seen corresponding path program 1 times [2020-09-04 22:06:13,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:06:13,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692393060] [2020-09-04 22:06:13,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:06:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:13,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:06:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:13,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 22:06:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:13,901 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 22:06:13,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692393060] [2020-09-04 22:06:13,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:06:13,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 22:06:13,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738181320] [2020-09-04 22:06:13,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 22:06:13,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:06:13,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 22:06:13,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 22:06:13,906 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2020-09-04 22:06:14,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:06:14,062 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2020-09-04 22:06:14,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 22:06:14,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-09-04 22:06:14,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:06:14,065 INFO L225 Difference]: With dead ends: 75 [2020-09-04 22:06:14,065 INFO L226 Difference]: Without dead ends: 59 [2020-09-04 22:06:14,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 22:06:14,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-04 22:06:14,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-04 22:06:14,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-04 22:06:14,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-09-04 22:06:14,081 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 46 [2020-09-04 22:06:14,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:06:14,082 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-09-04 22:06:14,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 22:06:14,082 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-09-04 22:06:14,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-04 22:06:14,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:06:14,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:06:14,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 22:06:14,085 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:06:14,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:06:14,085 INFO L82 PathProgramCache]: Analyzing trace with hash 176769226, now seen corresponding path program 1 times [2020-09-04 22:06:14,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:06:14,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521423451] [2020-09-04 22:06:14,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:06:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:14,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:06:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:14,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 22:06:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:14,269 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 22:06:14,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521423451] [2020-09-04 22:06:14,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:06:14,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 22:06:14,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612271222] [2020-09-04 22:06:14,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 22:06:14,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:06:14,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 22:06:14,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 22:06:14,278 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 8 states. [2020-09-04 22:06:14,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:06:14,540 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-09-04 22:06:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 22:06:14,541 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-09-04 22:06:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:06:14,543 INFO L225 Difference]: With dead ends: 61 [2020-09-04 22:06:14,543 INFO L226 Difference]: Without dead ends: 55 [2020-09-04 22:06:14,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-04 22:06:14,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-04 22:06:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-09-04 22:06:14,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-04 22:06:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-09-04 22:06:14,560 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 49 [2020-09-04 22:06:14,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:06:14,561 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-09-04 22:06:14,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 22:06:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-09-04 22:06:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-04 22:06:14,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:06:14,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 22:06:14,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 22:06:14,563 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:06:14,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:06:14,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1988535102, now seen corresponding path program 1 times [2020-09-04 22:06:14,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:06:14,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062508914] [2020-09-04 22:06:14,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:06:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:14,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:06:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:14,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 22:06:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:06:14,719 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 22:06:14,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062508914] [2020-09-04 22:06:14,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:06:14,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 22:06:14,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32214089] [2020-09-04 22:06:14,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 22:06:14,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:06:14,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 22:06:14,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 22:06:14,722 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 6 states. [2020-09-04 22:06:14,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:06:14,863 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2020-09-04 22:06:14,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 22:06:14,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-09-04 22:06:14,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:06:14,865 INFO L225 Difference]: With dead ends: 55 [2020-09-04 22:06:14,865 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 22:06:14,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 22:06:14,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 22:06:14,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 22:06:14,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 22:06:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 22:06:14,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2020-09-04 22:06:14,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:06:14,868 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 22:06:14,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 22:06:14,868 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 22:06:14,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 22:06:14,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 22:06:14,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 22:06:15,725 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:06:15,725 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 22:06:15,726 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 5) the Hoare annotation is: true [2020-09-04 22:06:15,726 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:06:15,726 INFO L271 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: true [2020-09-04 22:06:15,726 INFO L271 CegarLoopResult]: At program point L5-1(line 5) the Hoare annotation is: true [2020-09-04 22:06:15,727 INFO L271 CegarLoopResult]: At program point L5-2(line 5) the Hoare annotation is: true [2020-09-04 22:06:15,727 INFO L271 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: true [2020-09-04 22:06:15,727 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:06:15,727 INFO L271 CegarLoopResult]: At program point get_dummyFINAL(lines 7 10) the Hoare annotation is: true [2020-09-04 22:06:15,727 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-09-04 22:06:15,727 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2020-09-04 22:06:15,728 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-09-04 22:06:15,728 INFO L271 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: true [2020-09-04 22:06:15,728 INFO L271 CegarLoopResult]: At program point L9-4(line 9) the Hoare annotation is: true [2020-09-04 22:06:15,728 INFO L271 CegarLoopResult]: At program point L9-5(line 9) the Hoare annotation is: true [2020-09-04 22:06:15,728 INFO L271 CegarLoopResult]: At program point get_dummyEXIT(lines 7 10) the Hoare annotation is: true [2020-09-04 22:06:15,729 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:06:15,729 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:06:15,729 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 22:06:15,729 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 22:06:15,729 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: false [2020-09-04 22:06:15,729 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 12 32) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-09-04 22:06:15,730 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,730 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,730 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,731 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,731 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,731 INFO L264 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,731 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,732 INFO L264 CegarLoopResult]: At program point L19-4(line 19) the Hoare annotation is: (and |main_#t~short8| (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,732 INFO L264 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,732 INFO L264 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,732 INFO L264 CegarLoopResult]: At program point L19-6(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,733 INFO L264 CegarLoopResult]: At program point L19-7(line 19) the Hoare annotation is: false [2020-09-04 22:06:15,733 INFO L264 CegarLoopResult]: At program point L19-8(line 19) the Hoare annotation is: false [2020-09-04 22:06:15,733 INFO L264 CegarLoopResult]: At program point L19-9(line 19) the Hoare annotation is: false [2020-09-04 22:06:15,733 INFO L264 CegarLoopResult]: At program point L19-10(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,734 INFO L264 CegarLoopResult]: At program point L19-11(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,734 INFO L264 CegarLoopResult]: At program point L19-12(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,734 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 22:06:15,734 INFO L264 CegarLoopResult]: At program point L24(lines 24 26) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (= |main_#t~mem10| 60) (not (= |main_~#c~0.base| 0)) (= (select (select |#memory_int| |main_~#c~0.base|) |main_~#c~0.offset|) 60) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,735 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: false [2020-09-04 22:06:15,735 INFO L264 CegarLoopResult]: At program point L24-2(line 24) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 22:06:15,735 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,735 INFO L264 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,735 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,736 INFO L264 CegarLoopResult]: At program point L25(lines 12 32) the Hoare annotation is: false [2020-09-04 22:06:15,736 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,736 INFO L264 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,736 INFO L264 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,736 INFO L264 CegarLoopResult]: At program point L17-3(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,737 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 22:06:15,737 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 12 32) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2020-09-04 22:06:15,737 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 22:06:15,737 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 22:06:15,737 INFO L264 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 22:06:15,738 INFO L264 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: (and (not (= main_~pc~0.base 0)) (not (= |main_~#c~0.base| 0))) [2020-09-04 22:06:15,738 INFO L264 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: false [2020-09-04 22:06:15,738 INFO L264 CegarLoopResult]: At program point L13-6(line 13) the Hoare annotation is: false [2020-09-04 22:06:15,739 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) the Hoare annotation is: false [2020-09-04 22:06:15,739 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 32) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-09-04 22:06:15,739 INFO L264 CegarLoopResult]: At program point L18(lines 18 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,740 INFO L264 CegarLoopResult]: At program point L18-1(lines 18 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= main_~pa~0.base main_~pb~0.base) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,740 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 21) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,740 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 22:06:15,740 INFO L264 CegarLoopResult]: At program point L18-4(lines 18 19) the Hoare annotation is: false [2020-09-04 22:06:15,740 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 22:06:15,745 INFO L264 CegarLoopResult]: At program point L18-5(lines 18 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not |main_#t~short8|) (not (= |main_~#c~0.base| 0)) (= |main_#t~mem7| |main_#t~mem6|) (= main_~pa~0.base main_~pb~0.base) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem6|) (= main_~pb~0.offset main_~pa~0.offset) (not |main_#t~short9|) (= |main_~#c~0.offset| main_~pc~0.offset)) [2020-09-04 22:06:15,745 INFO L264 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (not (= |main_~#c~0.base| 0)) [2020-09-04 22:06:15,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 10:06:15 BoogieIcfgContainer [2020-09-04 22:06:15,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 22:06:15,777 INFO L168 Benchmark]: Toolchain (without parser) took 3888.64 ms. Allocated memory was 147.3 MB in the beginning and 243.3 MB in the end (delta: 95.9 MB). Free memory was 104.9 MB in the beginning and 206.4 MB in the end (delta: -101.4 MB). Peak memory consumption was 103.4 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:15,778 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 122.9 MB in the beginning and 122.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:06:15,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.00 ms. Allocated memory is still 147.3 MB. Free memory was 104.7 MB in the beginning and 94.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:15,781 INFO L168 Benchmark]: Boogie Preprocessor took 132.02 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 94.3 MB in the beginning and 182.6 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:15,783 INFO L168 Benchmark]: RCFGBuilder took 407.22 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 162.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:15,789 INFO L168 Benchmark]: TraceAbstraction took 3034.76 ms. Allocated memory was 204.5 MB in the beginning and 243.3 MB in the end (delta: 38.8 MB). Free memory was 162.1 MB in the beginning and 206.4 MB in the end (delta: -44.3 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. [2020-09-04 22:06:15,799 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 122.9 MB in the beginning and 122.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 309.00 ms. Allocated memory is still 147.3 MB. Free memory was 104.7 MB in the beginning and 94.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.02 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 94.3 MB in the beginning and 182.6 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 407.22 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 162.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3034.76 ms. Allocated memory was 204.5 MB in the beginning and 243.3 MB in the end (delta: 38.8 MB). Free memory was 162.1 MB in the beginning and 206.4 MB in the end (delta: -44.3 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 7]: Procedure Contract for get_dummy Derived contract for procedure get_dummy: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: !(pc == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 165 SDslu, 400 SDs, 0 SdLazy, 383 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 70 PreInvPairs, 87 NumberOfFragments, 633 HoareAnnotationTreeSize, 70 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 70 FomulaSimplificationsInter, 314 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 26661 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...