/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/test14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 17:26:53,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 17:26:53,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 17:26:53,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 17:26:53,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 17:26:53,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 17:26:53,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 17:26:53,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 17:26:53,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 17:26:53,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 17:26:53,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 17:26:53,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 17:26:53,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 17:26:53,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 17:26:53,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 17:26:53,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 17:26:53,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 17:26:53,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 17:26:53,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 17:26:53,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 17:26:53,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 17:26:53,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 17:26:53,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 17:26:53,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 17:26:53,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 17:26:53,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 17:26:53,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 17:26:53,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 17:26:53,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 17:26:53,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 17:26:53,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 17:26:53,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 17:26:53,113 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 17:26:53,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 17:26:53,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 17:26:53,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 17:26:53,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 17:26:53,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 17:26:53,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 17:26:53,115 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 17:26:53,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 17:26:53,115 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 17:26:53,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 17:26:53,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 17:26:53,116 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 17:26:53,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 17:26:53,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 17:26:53,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:26:53,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 17:26:53,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 17:26:53,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 17:26:53,117 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 17:26:53,421 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 17:26:53,432 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 17:26:53,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 17:26:53,437 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 17:26:53,437 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 17:26:53,438 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test14.c [2020-07-17 17:26:53,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f78efea/6bd8fcb9d3504f5991083a56913dfdc2/FLAG810e4bc86 [2020-07-17 17:26:53,926 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 17:26:53,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test14.c [2020-07-17 17:26:53,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f78efea/6bd8fcb9d3504f5991083a56913dfdc2/FLAG810e4bc86 [2020-07-17 17:26:54,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f78efea/6bd8fcb9d3504f5991083a56913dfdc2 [2020-07-17 17:26:54,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 17:26:54,335 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 17:26:54,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 17:26:54,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 17:26:54,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 17:26:54,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:26:54" (1/1) ... [2020-07-17 17:26:54,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ba46e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54, skipping insertion in model container [2020-07-17 17:26:54,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:26:54" (1/1) ... [2020-07-17 17:26:54,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 17:26:54,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 17:26:54,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:26:54,547 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 17:26:54,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:26:54,581 INFO L208 MainTranslator]: Completed translation [2020-07-17 17:26:54,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54 WrapperNode [2020-07-17 17:26:54,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 17:26:54,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 17:26:54,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 17:26:54,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 17:26:54,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54" (1/1) ... [2020-07-17 17:26:54,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54" (1/1) ... [2020-07-17 17:26:54,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54" (1/1) ... [2020-07-17 17:26:54,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54" (1/1) ... [2020-07-17 17:26:54,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54" (1/1) ... [2020-07-17 17:26:54,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54" (1/1) ... [2020-07-17 17:26:54,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54" (1/1) ... [2020-07-17 17:26:54,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 17:26:54,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 17:26:54,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 17:26:54,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 17:26:54,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:26:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 17:26:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 17:26:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-07-17 17:26:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 17:26:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 17:26:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 17:26:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-17 17:26:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-07-17 17:26:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 17:26:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 17:26:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 17:26:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 17:26:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 17:26:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 17:26:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 17:26:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 17:26:55,125 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 17:26:55,125 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 17:26:55,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:26:55 BoogieIcfgContainer [2020-07-17 17:26:55,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 17:26:55,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 17:26:55,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 17:26:55,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 17:26:55,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 05:26:54" (1/3) ... [2020-07-17 17:26:55,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc87bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:26:55, skipping insertion in model container [2020-07-17 17:26:55,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:54" (2/3) ... [2020-07-17 17:26:55,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc87bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:26:55, skipping insertion in model container [2020-07-17 17:26:55,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:26:55" (3/3) ... [2020-07-17 17:26:55,138 INFO L109 eAbstractionObserver]: Analyzing ICFG test14.c [2020-07-17 17:26:55,152 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 17:26:55,165 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 17:26:55,178 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 17:26:55,201 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 17:26:55,201 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 17:26:55,201 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 17:26:55,201 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 17:26:55,202 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 17:26:55,202 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 17:26:55,202 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 17:26:55,202 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 17:26:55,220 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-07-17 17:26:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-17 17:26:55,233 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:26:55,234 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] [2020-07-17 17:26:55,234 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:26:55,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:26:55,241 INFO L82 PathProgramCache]: Analyzing trace with hash 465652526, now seen corresponding path program 1 times [2020-07-17 17:26:55,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:26:55,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718961389] [2020-07-17 17:26:55,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:26:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:26:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:26:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:26:55,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:26:55,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718961389] [2020-07-17 17:26:55,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:26:55,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 17:26:55,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41984743] [2020-07-17 17:26:55,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 17:26:55,609 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:26:55,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 17:26:55,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 17:26:55,628 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 6 states. [2020-07-17 17:26:55,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:26:55,880 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2020-07-17 17:26:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 17:26:55,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-07-17 17:26:55,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:26:55,893 INFO L225 Difference]: With dead ends: 83 [2020-07-17 17:26:55,893 INFO L226 Difference]: Without dead ends: 51 [2020-07-17 17:26:55,897 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 [2020-07-17 17:26:55,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-07-17 17:26:55,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-07-17 17:26:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-07-17 17:26:55,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-07-17 17:26:55,949 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 43 [2020-07-17 17:26:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:26:55,950 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-07-17 17:26:55,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 17:26:55,950 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-07-17 17:26:55,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-17 17:26:55,952 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:26:55,953 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] [2020-07-17 17:26:55,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 17:26:55,953 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:26:55,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:26:55,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1782210472, now seen corresponding path program 1 times [2020-07-17 17:26:55,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:26:55,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546893251] [2020-07-17 17:26:55,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:26:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:26:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:26:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:26:56,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:26:56,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546893251] [2020-07-17 17:26:56,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:26:56,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 17:26:56,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192892946] [2020-07-17 17:26:56,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 17:26:56,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:26:56,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 17:26:56,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 17:26:56,142 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 5 states. [2020-07-17 17:26:56,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:26:56,328 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2020-07-17 17:26:56,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 17:26:56,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2020-07-17 17:26:56,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:26:56,331 INFO L225 Difference]: With dead ends: 59 [2020-07-17 17:26:56,331 INFO L226 Difference]: Without dead ends: 51 [2020-07-17 17:26:56,332 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 [2020-07-17 17:26:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-07-17 17:26:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-07-17 17:26:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-07-17 17:26:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2020-07-17 17:26:56,346 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 46 [2020-07-17 17:26:56,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:26:56,347 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2020-07-17 17:26:56,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 17:26:56,347 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2020-07-17 17:26:56,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-17 17:26:56,349 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:26:56,349 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] [2020-07-17 17:26:56,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 17:26:56,350 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:26:56,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:26:56,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1590234488, now seen corresponding path program 1 times [2020-07-17 17:26:56,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:26:56,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848793056] [2020-07-17 17:26:56,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:26:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:26:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:26:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:26:56,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:26:56,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848793056] [2020-07-17 17:26:56,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:26:56,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 17:26:56,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484768655] [2020-07-17 17:26:56,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 17:26:56,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:26:56,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 17:26:56,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-17 17:26:56,539 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 8 states. [2020-07-17 17:26:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:26:56,729 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2020-07-17 17:26:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 17:26:56,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-07-17 17:26:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:26:56,730 INFO L225 Difference]: With dead ends: 51 [2020-07-17 17:26:56,730 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 17:26:56,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-07-17 17:26:56,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 17:26:56,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 17:26:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 17:26:56,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 17:26:56,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2020-07-17 17:26:56,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:26:56,733 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 17:26:56,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 17:26:56,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 17:26:56,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 17:26:56,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 17:26:56,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 17:26:57,084 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 17:26:57,085 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-17 17:26:57,085 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 5) the Hoare annotation is: true [2020-07-17 17:26:57,085 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|)) [2020-07-17 17:26:57,086 INFO L271 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: true [2020-07-17 17:26:57,086 INFO L271 CegarLoopResult]: At program point L5-1(line 5) the Hoare annotation is: true [2020-07-17 17:26:57,086 INFO L271 CegarLoopResult]: At program point L5-2(line 5) the Hoare annotation is: true [2020-07-17 17:26:57,086 INFO L271 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: true [2020-07-17 17:26:57,086 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 17:26:57,087 INFO L271 CegarLoopResult]: At program point get_dummyFINAL(lines 7 10) the Hoare annotation is: true [2020-07-17 17:26:57,087 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-07-17 17:26:57,087 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2020-07-17 17:26:57,087 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-07-17 17:26:57,088 INFO L271 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: true [2020-07-17 17:26:57,088 INFO L271 CegarLoopResult]: At program point L9-4(line 9) the Hoare annotation is: true [2020-07-17 17:26:57,088 INFO L271 CegarLoopResult]: At program point L9-5(line 9) the Hoare annotation is: true [2020-07-17 17:26:57,088 INFO L271 CegarLoopResult]: At program point get_dummyEXIT(lines 7 10) the Hoare annotation is: true [2020-07-17 17:26:57,088 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 17:26:57,089 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 17:26:57,089 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 17:26:57,089 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 17:26:57,089 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 12 27) the Hoare annotation is: (not (= 0 main_~pc~0.base)) [2020-07-17 17:26:57,089 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,090 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,090 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and |main_#t~short7| (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,090 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and |main_#t~short7| (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,091 INFO L264 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: (and |main_#t~short7| (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem5|) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,091 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,091 INFO L264 CegarLoopResult]: At program point L19-4(line 19) the Hoare annotation is: (and |main_#t~short7| (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (= |main_#t~mem6| |main_#t~mem5|) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem5|) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,091 INFO L264 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,092 INFO L264 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,092 INFO L264 CegarLoopResult]: At program point L19-6(line 19) the Hoare annotation is: (and (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (not |main_#t~short7|) (= |main_#t~mem6| |main_#t~mem5|) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem5|) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,092 INFO L264 CegarLoopResult]: At program point L19-7(line 19) the Hoare annotation is: false [2020-07-17 17:26:57,092 INFO L264 CegarLoopResult]: At program point L19-8(line 19) the Hoare annotation is: false [2020-07-17 17:26:57,093 INFO L264 CegarLoopResult]: At program point L19-9(line 19) the Hoare annotation is: false [2020-07-17 17:26:57,093 INFO L264 CegarLoopResult]: At program point L19-10(line 19) the Hoare annotation is: (and (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,093 INFO L264 CegarLoopResult]: At program point L19-11(line 19) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,093 INFO L264 CegarLoopResult]: At program point L19-12(line 19) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,093 INFO L264 CegarLoopResult]: At program point L20(lines 12 27) the Hoare annotation is: false [2020-07-17 17:26:57,094 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,094 INFO L264 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,094 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,094 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,095 INFO L264 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,095 INFO L264 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,095 INFO L264 CegarLoopResult]: At program point L17-3(line 17) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,095 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 17:26:57,096 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 12 27) the Hoare annotation is: (not (= 0 main_~pc~0.base)) [2020-07-17 17:26:57,096 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 17:26:57,096 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,096 INFO L264 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,097 INFO L264 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,097 INFO L264 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,097 INFO L264 CegarLoopResult]: At program point L13-6(line 13) the Hoare annotation is: false [2020-07-17 17:26:57,097 INFO L264 CegarLoopResult]: At program point L13-7(line 13) the Hoare annotation is: false [2020-07-17 17:26:57,098 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) the Hoare annotation is: false [2020-07-17 17:26:57,098 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 27) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 17:26:57,098 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: false [2020-07-17 17:26:57,098 INFO L264 CegarLoopResult]: At program point L18(lines 18 19) the Hoare annotation is: (and (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,098 INFO L264 CegarLoopResult]: At program point L18-1(lines 18 19) the Hoare annotation is: (and (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,099 INFO L264 CegarLoopResult]: At program point L18-3(lines 18 21) the Hoare annotation is: (and (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (not |main_#t~short7|) (= |main_#t~mem6| |main_#t~mem5|) (not (= 0 main_~pc~0.base)) (= main_~pb~0.offset main_~pa~0.offset) (= (select (select |#memory_int| main_~pb~0.base) main_~pb~0.offset) |main_#t~mem5|) (= main_~pa~0.base main_~pb~0.base)) [2020-07-17 17:26:57,099 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,099 INFO L264 CegarLoopResult]: At program point L18-4(lines 18 19) the Hoare annotation is: false [2020-07-17 17:26:57,099 INFO L264 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (not (= 0 |main_~#c~0.base|)) [2020-07-17 17:26:57,100 INFO L264 CegarLoopResult]: At program point L18-5(lines 18 19) the Hoare annotation is: (and (not |main_#t~short8|) (not (= 0 |main_~#c~0.base|)) (not (= 0 main_~pc~0.base))) [2020-07-17 17:26:57,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 05:26:57 BoogieIcfgContainer [2020-07-17 17:26:57,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 17:26:57,125 INFO L168 Benchmark]: Toolchain (without parser) took 2790.09 ms. Allocated memory was 137.9 MB in the beginning and 233.8 MB in the end (delta: 95.9 MB). Free memory was 102.6 MB in the beginning and 86.3 MB in the end (delta: 16.4 MB). Peak memory consumption was 112.3 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:57,126 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-17 17:26:57,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.54 ms. Allocated memory is still 137.9 MB. Free memory was 102.2 MB in the beginning and 92.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:57,128 INFO L168 Benchmark]: Boogie Preprocessor took 112.16 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.3 MB in the beginning and 179.4 MB in the end (delta: -87.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:57,129 INFO L168 Benchmark]: RCFGBuilder took 434.93 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 159.9 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:57,130 INFO L168 Benchmark]: TraceAbstraction took 1990.65 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 159.9 MB in the beginning and 86.3 MB in the end (delta: 73.6 MB). Peak memory consumption was 106.1 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:57,134 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.54 ms. Allocated memory is still 137.9 MB. Free memory was 102.2 MB in the beginning and 92.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.16 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.3 MB in the beginning and 179.4 MB in the end (delta: -87.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 434.93 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 159.9 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1990.65 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 159.9 MB in the beginning and 86.3 MB in the end (delta: 73.6 MB). Peak memory consumption was 106.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: !(0 == pc) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 136 SDtfs, 114 SDslu, 264 SDs, 0 SdLazy, 273 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 65 PreInvPairs, 78 NumberOfFragments, 428 HoareAnnotationTreeSize, 65 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 65 FomulaSimplificationsInter, 246 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 14553 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...