/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/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/ex3_forlist.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:27:19,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:27:19,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:27:19,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:27:19,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:27:19,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:27:19,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:27:19,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:27:19,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:27:19,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:27:19,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:27:19,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:27:19,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:27:19,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:27:19,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:27:19,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:27:19,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:27:19,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:27:19,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:27:19,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:27:19,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:27:19,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:27:19,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:27:19,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:27:19,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 00:27:19,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:27:19,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:27:19,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:27:19,520 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 [2019-11-07 00:27:19,540 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:27:19,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:27:19,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:27:19,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:27:19,543 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:27:19,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:27:19,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:27:19,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:27:19,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:27:19,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:27:19,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:27:19,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:27:19,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:27:19,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:27:19,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:27:19,546 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:27:19,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:27:19,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:27:19,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:27:19,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:27:19,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:27:19,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:27:19,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:27:19,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:27:19,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:27:19,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:27:19,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:27:19,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:27:19,548 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 [2019-11-07 00:27:19,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:27:19,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:27:19,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:27:19,883 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:27:19,883 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:27:19,884 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/ex3_forlist.i [2019-11-07 00:27:19,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90eb05636/657ad1e5c502422882ae48dbfa312b80/FLAGe6a51a1d5 [2019-11-07 00:27:20,369 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:27:20,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/ex3_forlist.i [2019-11-07 00:27:20,376 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90eb05636/657ad1e5c502422882ae48dbfa312b80/FLAGe6a51a1d5 [2019-11-07 00:27:20,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90eb05636/657ad1e5c502422882ae48dbfa312b80 [2019-11-07 00:27:20,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:27:20,752 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:27:20,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:27:20,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:27:20,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:27:20,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:27:20" (1/1) ... [2019-11-07 00:27:20,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb56b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:20, skipping insertion in model container [2019-11-07 00:27:20,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:27:20" (1/1) ... [2019-11-07 00:27:20,767 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:27:20,784 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:27:20,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:27:20,981 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:27:21,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:27:21,105 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:27:21,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21 WrapperNode [2019-11-07 00:27:21,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:27:21,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:27:21,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:27:21,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:27:21,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21" (1/1) ... [2019-11-07 00:27:21,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21" (1/1) ... [2019-11-07 00:27:21,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21" (1/1) ... [2019-11-07 00:27:21,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21" (1/1) ... [2019-11-07 00:27:21,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21" (1/1) ... [2019-11-07 00:27:21,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21" (1/1) ... [2019-11-07 00:27:21,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21" (1/1) ... [2019-11-07 00:27:21,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:27:21,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:27:21,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:27:21,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:27:21,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21" (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 [2019-11-07 00:27:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:27:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:27:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-11-07 00:27:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-11-07 00:27:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-07 00:27:21,203 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-07 00:27:21,203 INFO L138 BoogieDeclarations]: Found implementation of procedure malloc [2019-11-07 00:27:21,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:27:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:27:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-11-07 00:27:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-11-07 00:27:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:27:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:27:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-07 00:27:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:27:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-07 00:27:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:27:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:27:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:27:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:27:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:27:21,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 00:27:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:27:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:27:21,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:27:21,571 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:27:21,572 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-07 00:27:21,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:27:21 BoogieIcfgContainer [2019-11-07 00:27:21,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:27:21,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:27:21,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:27:21,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:27:21,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:27:20" (1/3) ... [2019-11-07 00:27:21,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210260a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:27:21, skipping insertion in model container [2019-11-07 00:27:21,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:27:21" (2/3) ... [2019-11-07 00:27:21,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210260a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:27:21, skipping insertion in model container [2019-11-07 00:27:21,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:27:21" (3/3) ... [2019-11-07 00:27:21,580 INFO L109 eAbstractionObserver]: Analyzing ICFG ex3_forlist.i [2019-11-07 00:27:21,591 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:27:21,599 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:27:21,611 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:27:21,642 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:27:21,642 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:27:21,642 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:27:21,642 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:27:21,642 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:27:21,643 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:27:21,643 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:27:21,643 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:27:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2019-11-07 00:27:21,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-07 00:27:21,665 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:27:21,666 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:27:21,668 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:27:21,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:27:21,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1451885248, now seen corresponding path program 1 times [2019-11-07 00:27:21,680 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:27:21,680 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884308557] [2019-11-07 00:27:21,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:27:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:27:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-07 00:27:21,874 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884308557] [2019-11-07 00:27:21,875 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:27:21,875 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:27:21,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746097259] [2019-11-07 00:27:21,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:27:21,882 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:27:21,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:27:21,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:27:21,900 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2019-11-07 00:27:21,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:27:21,954 INFO L93 Difference]: Finished difference Result 86 states and 115 transitions. [2019-11-07 00:27:21,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:27:21,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-11-07 00:27:21,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:27:21,966 INFO L225 Difference]: With dead ends: 86 [2019-11-07 00:27:21,966 INFO L226 Difference]: Without dead ends: 43 [2019-11-07 00:27:21,970 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:27:21,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-07 00:27:22,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2019-11-07 00:27:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-07 00:27:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2019-11-07 00:27:22,009 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 39 [2019-11-07 00:27:22,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:27:22,009 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2019-11-07 00:27:22,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:27:22,009 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2019-11-07 00:27:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-07 00:27:22,012 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:27:22,012 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 00:27:22,013 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:27:22,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:27:22,013 INFO L82 PathProgramCache]: Analyzing trace with hash -507187170, now seen corresponding path program 1 times [2019-11-07 00:27:22,014 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:27:22,014 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227490560] [2019-11-07 00:27:22,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:27:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:27:22,118 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 00:27:22,119 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227490560] [2019-11-07 00:27:22,119 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036935013] [2019-11-07 00:27:22,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:27:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:27:22,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-07 00:27:22,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:27:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 00:27:22,274 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:27:22,338 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-07 00:27:22,338 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:27:22,339 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2019-11-07 00:27:22,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247303855] [2019-11-07 00:27:22,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:27:22,341 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:27:22,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:27:22,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:27:22,342 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 3 states. [2019-11-07 00:27:22,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:27:22,382 INFO L93 Difference]: Finished difference Result 67 states and 83 transitions. [2019-11-07 00:27:22,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:27:22,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-11-07 00:27:22,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:27:22,388 INFO L225 Difference]: With dead ends: 67 [2019-11-07 00:27:22,389 INFO L226 Difference]: Without dead ends: 47 [2019-11-07 00:27:22,393 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:27:22,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-07 00:27:22,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2019-11-07 00:27:22,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-07 00:27:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2019-11-07 00:27:22,417 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 41 [2019-11-07 00:27:22,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:27:22,418 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2019-11-07 00:27:22,419 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:27:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2019-11-07 00:27:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-07 00:27:22,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:27:22,425 INFO L410 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] [2019-11-07 00:27:22,625 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:27:22,626 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:27:22,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:27:22,626 INFO L82 PathProgramCache]: Analyzing trace with hash -75669472, now seen corresponding path program 1 times [2019-11-07 00:27:22,627 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:27:22,627 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328413800] [2019-11-07 00:27:22,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:27:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:27:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 00:27:22,884 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328413800] [2019-11-07 00:27:22,885 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864343104] [2019-11-07 00:27:22,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:27:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:27:22,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 00:27:22,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:27:22,996 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 00:27:22,996 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:27:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 00:27:23,041 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1776469589] [2019-11-07 00:27:23,047 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 44 [2019-11-07 00:27:23,078 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 00:27:23,078 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 00:27:23,135 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 00:27:23,138 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 16 root evaluator evaluations with a maximum evaluation depth of 0. Performed 16 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-11-07 00:27:23,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:27:23,142 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 00:27:23,176 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-11-07 00:27:23,176 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 00:27:23,178 INFO L553 sIntCurrentIteration]: We unified 42 AI predicates to 42 [2019-11-07 00:27:23,179 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 00:27:23,179 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 00:27:23,180 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 5 [2019-11-07 00:27:23,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287405045] [2019-11-07 00:27:23,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:27:23,181 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:27:23,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:27:23,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:27:23,181 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 2 states. [2019-11-07 00:27:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:27:23,185 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2019-11-07 00:27:23,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:27:23,185 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 43 [2019-11-07 00:27:23,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:27:23,185 INFO L225 Difference]: With dead ends: 43 [2019-11-07 00:27:23,186 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 00:27:23,186 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:27:23,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 00:27:23,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 00:27:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 00:27:23,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 00:27:23,187 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2019-11-07 00:27:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:27:23,188 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 00:27:23,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:27:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 00:27:23,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 00:27:23,392 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:27:23,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 00:27:23,459 INFO L446 ceAbstractionStarter]: At program point initENTRY(lines 15 21) the Hoare annotation is: true [2019-11-07 00:27:23,459 INFO L443 ceAbstractionStarter]: For program point L17-2(lines 17 20) no Hoare annotation was computed. [2019-11-07 00:27:23,459 INFO L446 ceAbstractionStarter]: At program point L17-3(lines 17 20) the Hoare annotation is: true [2019-11-07 00:27:23,459 INFO L443 ceAbstractionStarter]: For program point L17-4(lines 15 21) no Hoare annotation was computed. [2019-11-07 00:27:23,459 INFO L443 ceAbstractionStarter]: For program point initEXIT(lines 15 21) no Hoare annotation was computed. [2019-11-07 00:27:23,459 INFO L443 ceAbstractionStarter]: For program point mallocFINAL(lines 46 49) no Hoare annotation was computed. [2019-11-07 00:27:23,459 INFO L443 ceAbstractionStarter]: For program point mallocEXIT(lines 46 49) no Hoare annotation was computed. [2019-11-07 00:27:23,460 INFO L446 ceAbstractionStarter]: At program point mallocENTRY(lines 46 49) the Hoare annotation is: true [2019-11-07 00:27:23,460 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:27:23,460 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:27:23,460 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:27:23,460 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2019-11-07 00:27:23,460 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 31) no Hoare annotation was computed. [2019-11-07 00:27:23,461 INFO L446 ceAbstractionStarter]: At program point L25-3(lines 25 31) the Hoare annotation is: true [2019-11-07 00:27:23,461 INFO L443 ceAbstractionStarter]: For program point L25-4(lines 23 32) no Hoare annotation was computed. [2019-11-07 00:27:23,462 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 23 32) no Hoare annotation was computed. [2019-11-07 00:27:23,462 INFO L446 ceAbstractionStarter]: At program point fENTRY(lines 23 32) the Hoare annotation is: true [2019-11-07 00:27:23,462 INFO L443 ceAbstractionStarter]: For program point L36-2(lines 36 42) no Hoare annotation was computed. [2019-11-07 00:27:23,462 INFO L446 ceAbstractionStarter]: At program point L36-3(lines 36 42) the Hoare annotation is: true [2019-11-07 00:27:23,462 INFO L443 ceAbstractionStarter]: For program point L36-4(lines 34 43) no Hoare annotation was computed. [2019-11-07 00:27:23,462 INFO L443 ceAbstractionStarter]: For program point gEXIT(lines 34 43) no Hoare annotation was computed. [2019-11-07 00:27:23,462 INFO L443 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2019-11-07 00:27:23,463 INFO L443 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2019-11-07 00:27:23,463 INFO L446 ceAbstractionStarter]: At program point L39-2(line 39) the Hoare annotation is: true [2019-11-07 00:27:23,463 INFO L446 ceAbstractionStarter]: At program point gENTRY(lines 34 43) the Hoare annotation is: true [2019-11-07 00:27:23,463 INFO L443 ceAbstractionStarter]: For program point L39-3(line 39) no Hoare annotation was computed. [2019-11-07 00:27:23,463 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2019-11-07 00:27:23,463 INFO L443 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2019-11-07 00:27:23,463 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2019-11-07 00:27:23,466 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-07 00:27:23,466 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 00:27:23,466 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2019-11-07 00:27:23,466 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 00:27:23,466 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 00:27:23,467 INFO L443 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2019-11-07 00:27:23,467 INFO L446 ceAbstractionStarter]: At program point L62(line 62) the Hoare annotation is: true [2019-11-07 00:27:23,467 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 51 69) the Hoare annotation is: true [2019-11-07 00:27:23,467 INFO L446 ceAbstractionStarter]: At program point L61(line 61) the Hoare annotation is: true [2019-11-07 00:27:23,467 INFO L446 ceAbstractionStarter]: At program point L60(line 60) the Hoare annotation is: true [2019-11-07 00:27:23,467 INFO L446 ceAbstractionStarter]: At program point L60-1(line 60) the Hoare annotation is: true [2019-11-07 00:27:23,467 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 58) no Hoare annotation was computed. [2019-11-07 00:27:23,468 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 51 69) no Hoare annotation was computed. [2019-11-07 00:27:23,468 INFO L446 ceAbstractionStarter]: At program point L56(line 56) the Hoare annotation is: true [2019-11-07 00:27:23,468 INFO L443 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2019-11-07 00:27:23,468 INFO L443 ceAbstractionStarter]: For program point L56-1(line 56) no Hoare annotation was computed. [2019-11-07 00:27:23,468 INFO L446 ceAbstractionStarter]: At program point L54(line 54) the Hoare annotation is: true [2019-11-07 00:27:23,468 INFO L446 ceAbstractionStarter]: At program point L54-1(line 54) the Hoare annotation is: true [2019-11-07 00:27:23,468 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 51 69) no Hoare annotation was computed. [2019-11-07 00:27:23,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:27:23 BoogieIcfgContainer [2019-11-07 00:27:23,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 00:27:23,483 INFO L168 Benchmark]: Toolchain (without parser) took 2730.01 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 103.7 MB in the beginning and 153.1 MB in the end (delta: -49.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:23,485 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 00:27:23,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.54 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 103.2 MB in the beginning and 181.1 MB in the end (delta: -77.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:23,490 INFO L168 Benchmark]: Boogie Preprocessor took 42.69 ms. Allocated memory is still 201.9 MB. Free memory was 181.1 MB in the beginning and 178.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:23,494 INFO L168 Benchmark]: RCFGBuilder took 423.29 ms. Allocated memory is still 201.9 MB. Free memory was 178.7 MB in the beginning and 158.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:23,500 INFO L168 Benchmark]: TraceAbstraction took 1906.01 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 157.4 MB in the beginning and 153.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2019-11-07 00:27:23,508 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 353.54 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 103.2 MB in the beginning and 181.1 MB in the end (delta: -77.9 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.69 ms. Allocated memory is still 201.9 MB. Free memory was 181.1 MB in the beginning and 178.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.29 ms. Allocated memory is still 201.9 MB. Free memory was 178.7 MB in the beginning and 158.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1906.01 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 157.4 MB in the beginning and 153.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 48 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 5 SDslu, 93 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 167 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 48 PreInvPairs, 48 NumberOfFragments, 20 HoareAnnotationTreeSize, 48 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 12608 SizeOfPredicates, 2 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 49/58 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 95, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 1.0, AVG_VARS_REMOVED_DURING_WEAKENING: 1.2619047619047619, AVG_WEAKENED_CONJUNCTS: 0.0, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...