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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:01:37,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:01:37,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:01:37,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:01:37,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:01:37,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:01:37,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:01:37,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:01:37,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:01:37,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:01:37,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:01:37,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:01:37,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:01:37,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:01:37,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:01:37,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:01:37,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:01:37,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:01:37,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:01:37,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:01:37,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:01:37,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:01:37,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:01:37,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:01:37,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:01:37,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:01:37,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:01:37,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:01:37,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:01:37,234 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:01:37,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:01:37,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:01:37,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:01:37,236 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:01:37,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:01:37,237 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:01:37,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:01:37,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:01:37,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:01:37,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:01:37,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:01:37,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:01:37,238 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:01:37,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:01:37,238 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:01:37,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:01:37,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:01:37,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:01:37,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:01:37,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:01:37,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:37,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:01:37,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:01:37,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:01:37,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:01:37,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:01:37,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:01:37,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:01:37,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:01:37,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:01:37,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:01:37,543 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:01:37,543 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:01:37,543 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2019-10-15 01:01:37,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0046a2f7/ada2a4c4588047578413ed351b0f95f6/FLAGcc2590e57 [2019-10-15 01:01:38,095 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:01:38,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-1.c [2019-10-15 01:01:38,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0046a2f7/ada2a4c4588047578413ed351b0f95f6/FLAGcc2590e57 [2019-10-15 01:01:38,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0046a2f7/ada2a4c4588047578413ed351b0f95f6 [2019-10-15 01:01:38,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:01:38,477 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:01:38,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:38,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:01:38,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:01:38,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2330c988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38, skipping insertion in model container [2019-10-15 01:01:38,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,494 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:01:38,517 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:01:38,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:38,715 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:01:38,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:38,824 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:01:38,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38 WrapperNode [2019-10-15 01:01:38,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:38,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:01:38,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:01:38,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:01:38,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (1/1) ... [2019-10-15 01:01:38,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:01:38,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:01:38,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:01:38,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:01:38,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (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 [2019-10-15 01:01:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:01:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:01:38,923 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-15 01:01:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-10-15 01:01:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-15 01:01:38,924 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:01:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:01:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:01:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 01:01:38,924 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-15 01:01:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:01:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-10-15 01:01:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-15 01:01:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:01:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:01:38,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:01:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:01:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:01:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:01:38,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:01:39,209 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:01:39,209 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 01:01:39,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:39 BoogieIcfgContainer [2019-10-15 01:01:39,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:01:39,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:01:39,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:01:39,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:01:39,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:01:38" (1/3) ... [2019-10-15 01:01:39,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63452a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:39, skipping insertion in model container [2019-10-15 01:01:39,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:38" (2/3) ... [2019-10-15 01:01:39,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63452a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:39, skipping insertion in model container [2019-10-15 01:01:39,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:39" (3/3) ... [2019-10-15 01:01:39,219 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2019-10-15 01:01:39,230 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:01:39,248 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:01:39,269 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:01:39,296 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:01:39,296 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:01:39,296 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:01:39,296 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:01:39,297 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:01:39,297 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:01:39,297 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:01:39,297 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:01:39,315 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-10-15 01:01:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 01:01:39,321 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:39,322 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:01:39,324 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:39,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:39,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1351082661, now seen corresponding path program 1 times [2019-10-15 01:01:39,337 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:39,337 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813475828] [2019-10-15 01:01:39,337 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:39,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:39,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 01:01:39,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813475828] [2019-10-15 01:01:39,718 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:39,719 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:01:39,719 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902059765] [2019-10-15 01:01:39,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:01:39,726 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:39,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:01:39,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:01:39,745 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 10 states. [2019-10-15 01:01:40,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:40,054 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2019-10-15 01:01:40,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:01:40,056 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2019-10-15 01:01:40,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:40,065 INFO L225 Difference]: With dead ends: 56 [2019-10-15 01:01:40,067 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:01:40,077 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:01:40,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:01:40,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:01:40,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:01:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:01:40,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2019-10-15 01:01:40,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:40,108 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:01:40,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:01:40,109 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:01:40,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:01:40,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:01:40,157 INFO L443 ceAbstractionStarter]: For program point initEXIT(lines 11 18) no Hoare annotation was computed. [2019-10-15 01:01:40,158 INFO L446 ceAbstractionStarter]: At program point initENTRY(lines 11 18) the Hoare annotation is: true [2019-10-15 01:01:40,158 INFO L443 ceAbstractionStarter]: For program point initFINAL(lines 11 18) no Hoare annotation was computed. [2019-10-15 01:01:40,158 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:40,159 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:40,159 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:40,159 INFO L443 ceAbstractionStarter]: For program point get_dummyFINAL(lines 20 23) no Hoare annotation was computed. [2019-10-15 01:01:40,159 INFO L446 ceAbstractionStarter]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2019-10-15 01:01:40,159 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-10-15 01:01:40,160 INFO L443 ceAbstractionStarter]: For program point get_dummyEXIT(lines 20 23) no Hoare annotation was computed. [2019-10-15 01:01:40,160 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:40,160 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:01:40,160 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:40,161 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:40,161 INFO L443 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2019-10-15 01:01:40,161 INFO L443 ceAbstractionStarter]: For program point L35-2(lines 35 37) no Hoare annotation was computed. [2019-10-15 01:01:40,161 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2019-10-15 01:01:40,161 INFO L446 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: true [2019-10-15 01:01:40,162 INFO L446 ceAbstractionStarter]: At program point L33-1(line 33) the Hoare annotation is: true [2019-10-15 01:01:40,162 INFO L443 ceAbstractionStarter]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2019-10-15 01:01:40,162 INFO L443 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2019-10-15 01:01:40,163 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 30 44) the Hoare annotation is: true [2019-10-15 01:01:40,163 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 30 44) no Hoare annotation was computed. [2019-10-15 01:01:40,163 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 30 44) no Hoare annotation was computed. [2019-10-15 01:01:40,163 INFO L439 ceAbstractionStarter]: At program point L36(lines 31 44) the Hoare annotation is: false [2019-10-15 01:01:40,163 INFO L439 ceAbstractionStarter]: 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)) [2019-10-15 01:01:40,164 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2019-10-15 01:01:40,164 INFO L443 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2019-10-15 01:01:40,164 INFO L446 ceAbstractionStarter]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2019-10-15 01:01:40,164 INFO L443 ceAbstractionStarter]: For program point checkFINAL(lines 25 28) no Hoare annotation was computed. [2019-10-15 01:01:40,164 INFO L443 ceAbstractionStarter]: For program point checkEXIT(lines 25 28) no Hoare annotation was computed. [2019-10-15 01:01:40,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:01:40 BoogieIcfgContainer [2019-10-15 01:01:40,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:01:40,181 INFO L168 Benchmark]: Toolchain (without parser) took 1701.46 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 102.5 MB in the beginning and 97.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 62.5 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:40,183 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-15 01:01:40,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.99 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 182.1 MB in the end (delta: -79.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:40,188 INFO L168 Benchmark]: Boogie Preprocessor took 36.25 ms. Allocated memory is still 201.9 MB. Free memory was 182.1 MB in the beginning and 178.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:40,189 INFO L168 Benchmark]: RCFGBuilder took 348.48 ms. Allocated memory is still 201.9 MB. Free memory was 178.7 MB in the beginning and 162.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:40,192 INFO L168 Benchmark]: TraceAbstraction took 965.11 ms. Allocated memory is still 201.9 MB. Free memory was 162.1 MB in the beginning and 97.2 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:40,203 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 346.99 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 182.1 MB in the end (delta: -79.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.25 ms. Allocated memory is still 201.9 MB. Free memory was 182.1 MB in the beginning and 178.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 348.48 ms. Allocated memory is still 201.9 MB. Free memory was 178.7 MB in the beginning and 162.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 965.11 ms. Allocated memory is still 201.9 MB. Free memory was 162.1 MB in the beginning and 97.2 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 17 SDslu, 153 SDs, 0 SdLazy, 114 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 11 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 17 HoareAnnotationTreeSize, 14 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 3360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...