/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:05:30,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:05:30,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:05:30,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 19:05:30,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:05:30,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:05:30,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:05:30,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:05:30,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:05:30,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:05:30,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:05:30,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:05:30,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:05:30,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:05:30,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:05:30,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:05:30,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:05:30,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:05:30,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:05:30,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:05:30,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:05:30,557 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:05:30,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:05:30,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:05:30,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:05:30,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:05:30,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:05:30,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:05:30,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:05:30,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:05:30,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:05:30,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:05:30,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:05:30,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:05:30,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:05:30,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:05:30,564 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:05:30,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:05:30,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:05:30,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:05:30,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:05:30,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:05:30,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:05:30,565 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:05:30,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:05:30,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:05:30,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:05:30,856 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:05:30,858 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:05:30,859 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2020-08-22 19:05:30,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a95cede/4ae65db82a654aa4b084b2088b3e1235/FLAG98b479dd0 [2020-08-22 19:05:31,314 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:05:31,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-1.c [2020-08-22 19:05:31,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a95cede/4ae65db82a654aa4b084b2088b3e1235/FLAG98b479dd0 [2020-08-22 19:05:31,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65a95cede/4ae65db82a654aa4b084b2088b3e1235 [2020-08-22 19:05:31,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:05:31,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:05:31,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:05:31,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:05:31,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:05:31,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:05:31" (1/1) ... [2020-08-22 19:05:31,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523fc4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:31, skipping insertion in model container [2020-08-22 19:05:31,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:05:31" (1/1) ... [2020-08-22 19:05:31,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:05:31,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:05:32,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:05:32,012 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:05:32,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:05:32,043 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:05:32,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32 WrapperNode [2020-08-22 19:05:32,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:05:32,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:05:32,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:05:32,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:05:32,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32" (1/1) ... [2020-08-22 19:05:32,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32" (1/1) ... [2020-08-22 19:05:32,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32" (1/1) ... [2020-08-22 19:05:32,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32" (1/1) ... [2020-08-22 19:05:32,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32" (1/1) ... [2020-08-22 19:05:32,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32" (1/1) ... [2020-08-22 19:05:32,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32" (1/1) ... [2020-08-22 19:05:32,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:05:32,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:05:32,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:05:32,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:05:32,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32" (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 [2020-08-22 19:05:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:05:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:05:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-08-22 19:05:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-08-22 19:05:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-08-22 19:05:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:05:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:05:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:05:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-22 19:05:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-08-22 19:05:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 19:05:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-08-22 19:05:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-08-22 19:05:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 19:05:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:05:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:05:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 19:05:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 19:05:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:05:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:05:32,558 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:05:32,558 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 19:05:32,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:05:32 BoogieIcfgContainer [2020-08-22 19:05:32,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:05:32,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:05:32,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:05:32,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:05:32,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:05:31" (1/3) ... [2020-08-22 19:05:32,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d847b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:05:32, skipping insertion in model container [2020-08-22 19:05:32,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:05:32" (2/3) ... [2020-08-22 19:05:32,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d847b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:05:32, skipping insertion in model container [2020-08-22 19:05:32,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:05:32" (3/3) ... [2020-08-22 19:05:32,573 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2020-08-22 19:05:32,583 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:05:32,590 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:05:32,603 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:05:32,624 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:05:32,624 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:05:32,625 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:05:32,625 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:05:32,625 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:05:32,625 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:05:32,625 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:05:32,625 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:05:32,645 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-08-22 19:05:32,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-22 19:05:32,655 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:05:32,655 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2020-08-22 19:05:32,656 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:05:32,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:05:32,661 INFO L82 PathProgramCache]: Analyzing trace with hash -487286935, now seen corresponding path program 1 times [2020-08-22 19:05:32,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:05:32,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933807227] [2020-08-22 19:05:32,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:05:32,731 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:05:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:33,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:05:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:33,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 19:05:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:33,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 19:05:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:33,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-22 19:05:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:33,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 19:05:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:05:33,436 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-22 19:05:33,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933807227] [2020-08-22 19:05:33,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:05:33,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-08-22 19:05:33,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325159573] [2020-08-22 19:05:33,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 19:05:33,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:05:33,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 19:05:33,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-08-22 19:05:33,465 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 16 states. [2020-08-22 19:05:35,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:05:35,048 INFO L93 Difference]: Finished difference Result 96 states and 105 transitions. [2020-08-22 19:05:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-22 19:05:35,049 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 63 [2020-08-22 19:05:35,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:05:35,057 INFO L225 Difference]: With dead ends: 96 [2020-08-22 19:05:35,057 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:05:35,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=187, Invalid=1073, Unknown=0, NotChecked=0, Total=1260 [2020-08-22 19:05:35,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:05:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:05:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:05:35,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:05:35,083 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2020-08-22 19:05:35,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:05:35,084 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:05:35,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 19:05:35,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:05:35,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:05:35,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:05:35,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:05:36,007 INFO L264 CegarLoopResult]: At program point initENTRY(lines 11 18) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-08-22 19:05:36,007 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-08-22 19:05:36,007 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-08-22 19:05:36,007 INFO L271 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-08-22 19:05:36,008 INFO L271 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true [2020-08-22 19:05:36,008 INFO L271 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: true [2020-08-22 19:05:36,008 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-08-22 19:05:36,008 INFO L271 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: true [2020-08-22 19:05:36,009 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-08-22 19:05:36,009 INFO L271 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: true [2020-08-22 19:05:36,009 INFO L271 CegarLoopResult]: At program point initEXIT(lines 11 18) the Hoare annotation is: true [2020-08-22 19:05:36,009 INFO L271 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: true [2020-08-22 19:05:36,010 INFO L271 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: true [2020-08-22 19:05:36,010 INFO L271 CegarLoopResult]: At program point initFINAL(lines 11 18) the Hoare annotation is: true [2020-08-22 19:05:36,010 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:05:36,010 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-08-22 19:05:36,010 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 9) the Hoare annotation is: true [2020-08-22 19:05:36,010 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#length)| |#length|) (= |old(~#d1~0.base)| |~#d1~0.base|) (= |old(~#d1~0.offset)| |~#d1~0.offset|) (= |old(~#d2~0.offset)| |~#d2~0.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |old(~#d2~0.base)| |~#d2~0.base|)) [2020-08-22 19:05:36,011 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-08-22 19:05:36,011 INFO L271 CegarLoopResult]: At program point L9-1(line 9) the Hoare annotation is: true [2020-08-22 19:05:36,011 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-08-22 19:05:36,011 INFO L271 CegarLoopResult]: At program point L9-3(line 9) the Hoare annotation is: true [2020-08-22 19:05:36,011 INFO L271 CegarLoopResult]: At program point L9-4(line 9) the Hoare annotation is: true [2020-08-22 19:05:36,011 INFO L271 CegarLoopResult]: At program point L9-5(line 9) the Hoare annotation is: true [2020-08-22 19:05:36,012 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:05:36,012 INFO L271 CegarLoopResult]: At program point L22-5(line 22) the Hoare annotation is: true [2020-08-22 19:05:36,012 INFO L271 CegarLoopResult]: At program point get_dummyFINAL(lines 20 23) the Hoare annotation is: true [2020-08-22 19:05:36,012 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2020-08-22 19:05:36,012 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-08-22 19:05:36,013 INFO L271 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: true [2020-08-22 19:05:36,013 INFO L271 CegarLoopResult]: At program point get_dummyEXIT(lines 20 23) the Hoare annotation is: true [2020-08-22 19:05:36,013 INFO L271 CegarLoopResult]: At program point L22-3(line 22) the Hoare annotation is: true [2020-08-22 19:05:36,013 INFO L271 CegarLoopResult]: At program point L22-4(line 22) the Hoare annotation is: true [2020-08-22 19:05:36,013 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:05:36,013 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:05:36,014 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:05:36,014 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:05:36,014 INFO L271 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: true [2020-08-22 19:05:36,014 INFO L264 CegarLoopResult]: At program point L35-2(lines 35 37) the Hoare annotation is: (and (<= 1 |main_#t~ret10|) (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-08-22 19:05:36,014 INFO L271 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: true [2020-08-22 19:05:36,014 INFO L264 CegarLoopResult]: At program point L35-3(line 35) the Hoare annotation is: false [2020-08-22 19:05:36,015 INFO L271 CegarLoopResult]: At program point L33-2(line 33) the Hoare annotation is: true [2020-08-22 19:05:36,015 INFO L264 CegarLoopResult]: At program point L35-4(line 35) the Hoare annotation is: (and (<= 1 |main_#t~ret10|) (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-08-22 19:05:36,015 INFO L271 CegarLoopResult]: At program point L33-3(line 33) the Hoare annotation is: true [2020-08-22 19:05:36,015 INFO L271 CegarLoopResult]: At program point L33-4(line 33) the Hoare annotation is: true [2020-08-22 19:05:36,015 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 30 44) the Hoare annotation is: true [2020-08-22 19:05:36,016 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 30 44) the Hoare annotation is: true [2020-08-22 19:05:36,016 INFO L264 CegarLoopResult]: At program point L36(lines 31 44) the Hoare annotation is: false [2020-08-22 19:05:36,016 INFO L271 CegarLoopResult]: At program point L34(lines 34 38) the Hoare annotation is: true [2020-08-22 19:05:36,016 INFO L271 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-08-22 19:05:36,016 INFO L271 CegarLoopResult]: At program point L34-2(lines 34 38) the Hoare annotation is: true [2020-08-22 19:05:36,016 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) the Hoare annotation is: false [2020-08-22 19:05:36,017 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 30 44) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-08-22 19:05:36,017 INFO L264 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: false [2020-08-22 19:05:36,017 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-08-22 19:05:36,017 INFO L264 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: (and (<= 1 |main_#t~ret10|) (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2020-08-22 19:05:36,017 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2020-08-22 19:05:36,018 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (let ((.cse0 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or (not (= |check_#in~s1.base| |check_#in~s2.base|)) .cse0) (or (= check_~s1.offset check_~s2.offset) (not (= |check_#in~s1.offset| |check_#in~s2.offset|)) (not .cse0)))) [2020-08-22 19:05:36,018 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse1 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse2 (= check_~s1.base check_~s2.base))) (and (or .cse0 .cse1 (= |check_#t~mem6| (select (select |#memory_int| check_~s2.base) check_~s2.offset))) (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse2) (or (= check_~s1.offset check_~s2.offset) .cse1 (not .cse2)))) [2020-08-22 19:05:36,018 INFO L264 CegarLoopResult]: At program point L25(lines 25 28) the Hoare annotation is: (and (= check_~s1.offset |check_#in~s1.offset|) (= |check_#in~s1.base| check_~s1.base)) [2020-08-22 19:05:36,018 INFO L264 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse1 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse2 (= check_~s1.base check_~s2.base))) (and (or .cse0 (= |check_#t~mem7| |check_#t~mem6|) .cse1) (or .cse0 .cse1 (= |check_#t~mem6| (select (select |#memory_int| check_~s2.base) check_~s2.offset))) (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse2) (or (= check_~s1.offset check_~s2.offset) .cse1 (not .cse2)))) [2020-08-22 19:05:36,019 INFO L264 CegarLoopResult]: At program point L27-3(line 27) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse1 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse2 (= check_~s1.base check_~s2.base))) (and (or .cse0 (= |check_#t~mem7| |check_#t~mem6|) .cse1) (or .cse0 .cse1 (= |check_#t~mem6| (select (select |#memory_int| check_~s2.base) check_~s2.offset))) (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse2) (or .cse0 .cse1 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse1 (not .cse2)))) [2020-08-22 19:05:36,019 INFO L264 CegarLoopResult]: At program point L27-4(line 27) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse1 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse2 (= check_~s1.base check_~s2.base))) (and (or .cse0 .cse1 (= |check_#t~mem6| (select (select |#memory_int| check_~s2.base) check_~s2.offset))) (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse2) (or .cse0 .cse1 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse1 (not .cse2)))) [2020-08-22 19:05:36,019 INFO L264 CegarLoopResult]: At program point checkFINAL(lines 25 28) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse1 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 .cse2 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)))) [2020-08-22 19:05:36,020 INFO L264 CegarLoopResult]: At program point checkEXIT(lines 25 28) the Hoare annotation is: (let ((.cse0 (not (= |check_#in~s1.base| |check_#in~s2.base|))) (.cse2 (not (= |check_#in~s1.offset| |check_#in~s2.offset|))) (.cse1 (= check_~s1.base check_~s2.base))) (and (= |check_#in~s1.base| check_~s1.base) (= check_~s1.offset |check_#in~s1.offset|) (or .cse0 .cse1) (or .cse0 .cse2 (<= 1 |check_#res|)) (or (= check_~s1.offset check_~s2.offset) .cse2 (not .cse1)))) [2020-08-22 19:05:36,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:05:36 BoogieIcfgContainer [2020-08-22 19:05:36,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:05:36,042 INFO L168 Benchmark]: Toolchain (without parser) took 4272.00 ms. Allocated memory was 144.7 MB in the beginning and 272.1 MB in the end (delta: 127.4 MB). Free memory was 103.3 MB in the beginning and 186.6 MB in the end (delta: -83.3 MB). Peak memory consumption was 101.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:36,043 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 19:05:36,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.23 ms. Allocated memory is still 144.7 MB. Free memory was 103.1 MB in the beginning and 92.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:36,045 INFO L168 Benchmark]: Boogie Preprocessor took 122.32 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 92.7 MB in the beginning and 181.9 MB in the end (delta: -89.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:36,046 INFO L168 Benchmark]: RCFGBuilder took 395.77 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 162.5 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:36,047 INFO L168 Benchmark]: TraceAbstraction took 3473.00 ms. Allocated memory was 204.5 MB in the beginning and 272.1 MB in the end (delta: 67.6 MB). Free memory was 161.9 MB in the beginning and 186.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:05:36,051 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 144.7 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 272.23 ms. Allocated memory is still 144.7 MB. Free memory was 103.1 MB in the beginning and 92.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.32 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 92.7 MB in the beginning and 181.9 MB in the end (delta: -89.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 395.77 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 162.5 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3473.00 ms. Allocated memory was 204.5 MB in the beginning and 272.1 MB in the end (delta: 67.6 MB). Free memory was 161.9 MB in the beginning and 186.6 MB in the end (delta: -24.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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: 31]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 11]: Procedure Contract for init Derived contract for procedure init: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for get_dummy Derived contract for procedure get_dummy: 1 - ProcedureContractResult [Line: 30]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 25]: Procedure Contract for check Derived contract for procedure check: (((s1 == s1 && s1 == s1) && (!(s1 == s2) || s1 == s2)) && ((!(s1 == s2) || !(s1 == s2)) || 1 <= \result)) && ((s1 == s2 || !(s1 == s2)) || !(s1 == s2)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 133 SDslu, 85 SDs, 0 SdLazy, 736 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.1s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 65 LocationsWithAnnotation, 90 PreInvPairs, 131 NumberOfFragments, 452 HoareAnnotationTreeSize, 90 FomulaSimplifications, 1319 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 65 FomulaSimplificationsInter, 1181 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...