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/loop-crafted/simple_array_index_value_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:05:42,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:05:42,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:05:42,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:05:42,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:05:42,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:05:42,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:05:42,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:05:42,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:05:42,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:05:42,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:05:42,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:05:42,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:05:42,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:05:42,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:05:42,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:05:42,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:05:42,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:05:42,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:05:42,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:05:42,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:05:42,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:05:42,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:05:42,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:05:42,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:05:42,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:05:42,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:05:42,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:05:42,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:05:42,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:05:42,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:05:42,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:05:42,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:05:42,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:05:42,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:05:42,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:05:42,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:05:42,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:05:42,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:05:42,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:05:42,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:05:42,697 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 [2019-10-13 21:05:42,711 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:05:42,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:05:42,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:05:42,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:05:42,713 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:05:42,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:05:42,714 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:05:42,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:05:42,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:05:42,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:05:42,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:05:42,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:05:42,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:05:42,715 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:05:42,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:05:42,715 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:05:42,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:05:42,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:05:42,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:05:42,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:05:42,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:05:42,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:05:42,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:05:42,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:05:42,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:05:42,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:05:42,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:05:42,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:05:42,718 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 [2019-10-13 21:05:43,015 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:05:43,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:05:43,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:05:43,032 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:05:43,032 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:05:43,033 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2019-10-13 21:05:43,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcaf9338/accf2e823c794fa7b770f0fd1d910ecb/FLAG461701f82 [2019-10-13 21:05:43,546 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:05:43,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2019-10-13 21:05:43,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcaf9338/accf2e823c794fa7b770f0fd1d910ecb/FLAG461701f82 [2019-10-13 21:05:43,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcaf9338/accf2e823c794fa7b770f0fd1d910ecb [2019-10-13 21:05:43,978 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:05:43,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:05:43,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:43,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:05:43,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:05:43,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:43" (1/1) ... [2019-10-13 21:05:43,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760969a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:43, skipping insertion in model container [2019-10-13 21:05:43,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:43" (1/1) ... [2019-10-13 21:05:43,996 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:05:44,014 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:05:44,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:44,266 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:05:44,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:05:44,309 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:05:44,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44 WrapperNode [2019-10-13 21:05:44,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:05:44,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:05:44,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:05:44,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:05:44,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44" (1/1) ... [2019-10-13 21:05:44,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44" (1/1) ... [2019-10-13 21:05:44,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44" (1/1) ... [2019-10-13 21:05:44,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44" (1/1) ... [2019-10-13 21:05:44,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44" (1/1) ... [2019-10-13 21:05:44,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44" (1/1) ... [2019-10-13 21:05:44,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44" (1/1) ... [2019-10-13 21:05:44,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:05:44,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:05:44,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:05:44,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:05:44,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44" (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 [2019-10-13 21:05:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:05:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:05:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:05:44,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:05:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:05:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 21:05:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:05:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 21:05:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:05:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:05:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:05:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:05:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:05:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:05:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:05:44,702 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:05:44,702 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 21:05:44,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:44 BoogieIcfgContainer [2019-10-13 21:05:44,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:05:44,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:05:44,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:05:44,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:05:44,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:05:43" (1/3) ... [2019-10-13 21:05:44,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184f10d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:44, skipping insertion in model container [2019-10-13 21:05:44,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:44" (2/3) ... [2019-10-13 21:05:44,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184f10d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:44, skipping insertion in model container [2019-10-13 21:05:44,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:44" (3/3) ... [2019-10-13 21:05:44,712 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_2.i [2019-10-13 21:05:44,721 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:05:44,729 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:05:44,747 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:05:44,811 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:05:44,811 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:05:44,811 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:05:44,812 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:05:44,812 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:05:44,812 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:05:44,812 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:05:44,812 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:05:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-13 21:05:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:05:44,856 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:44,857 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:44,863 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:44,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:44,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1821336840, now seen corresponding path program 1 times [2019-10-13 21:05:44,886 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:44,887 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843021865] [2019-10-13 21:05:44,887 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:44,887 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:44,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:45,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:45,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843021865] [2019-10-13 21:05:45,001 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:45,001 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:05:45,001 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196330825] [2019-10-13 21:05:45,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:05:45,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:45,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:05:45,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:45,025 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-10-13 21:05:45,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:45,048 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-10-13 21:05:45,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:05:45,050 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-13 21:05:45,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:45,058 INFO L225 Difference]: With dead ends: 40 [2019-10-13 21:05:45,059 INFO L226 Difference]: Without dead ends: 19 [2019-10-13 21:05:45,062 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:45,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-13 21:05:45,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-13 21:05:45,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-13 21:05:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-10-13 21:05:45,101 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 13 [2019-10-13 21:05:45,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:45,102 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-10-13 21:05:45,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:05:45,102 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-10-13 21:05:45,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:05:45,104 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:45,104 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:45,104 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:45,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:45,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1443575666, now seen corresponding path program 1 times [2019-10-13 21:05:45,105 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:45,105 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445386326] [2019-10-13 21:05:45,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:45,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:45,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:45,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445386326] [2019-10-13 21:05:45,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:05:45,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:05:45,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689797496] [2019-10-13 21:05:45,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:05:45,190 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:45,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:05:45,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:05:45,192 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 3 states. [2019-10-13 21:05:45,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:45,274 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2019-10-13 21:05:45,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:05:45,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-10-13 21:05:45,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:45,278 INFO L225 Difference]: With dead ends: 36 [2019-10-13 21:05:45,278 INFO L226 Difference]: Without dead ends: 25 [2019-10-13 21:05:45,280 INFO L600 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 [2019-10-13 21:05:45,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-13 21:05:45,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2019-10-13 21:05:45,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-13 21:05:45,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-10-13 21:05:45,297 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2019-10-13 21:05:45,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:45,297 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-10-13 21:05:45,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:05:45,298 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-10-13 21:05:45,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-13 21:05:45,299 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:05:45,300 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:05:45,300 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:05:45,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:45,301 INFO L82 PathProgramCache]: Analyzing trace with hash 31729808, now seen corresponding path program 1 times [2019-10-13 21:05:45,302 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:05:45,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065055903] [2019-10-13 21:05:45,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:45,303 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:05:45,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:05:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:45,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065055903] [2019-10-13 21:05:45,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780150975] [2019-10-13 21:05:45,448 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 [2019-10-13 21:05:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:05:45,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-13 21:05:45,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:05:45,602 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-13 21:05:45,602 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:05:45,610 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:05:45,611 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:05:45,612 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:9 [2019-10-13 21:05:45,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:05:45,651 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-13 21:05:45,652 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-13 21:05:45,654 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2019-10-13 21:05:45,656 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:05:45,660 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-13 21:05:45,660 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-13 21:05:45,673 INFO L567 ElimStorePlain]: treesize reduction 10, result has 47.4 percent of original size [2019-10-13 21:05:45,674 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:05:45,674 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:75, output treesize:9 [2019-10-13 21:05:45,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:05:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:45,711 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:05:45,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:05:45,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:05:45,820 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2019-10-13 21:05:45,832 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2019-10-13 21:05:45,834 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-10-13 21:05:45,854 INFO L567 ElimStorePlain]: treesize reduction 12, result has 66.7 percent of original size [2019-10-13 21:05:45,855 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:05:45,880 INFO L567 ElimStorePlain]: treesize reduction 46, result has 34.3 percent of original size [2019-10-13 21:05:45,880 INFO L464 ElimStorePlain]: Eliminatee |#memory_int| vanished before elimination [2019-10-13 21:05:45,881 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-13 21:05:45,882 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:79, output treesize:24 [2019-10-13 21:05:46,757 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-10-13 21:05:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:05:46,770 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1609808705] [2019-10-13 21:05:46,777 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 16 [2019-10-13 21:05:46,819 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:05:46,819 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:05:46,906 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:05:46,908 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 19 variables. [2019-10-13 21:05:46,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:05:46,911 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:05:46,947 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 21:05:46,947 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:05:46,948 INFO L553 sIntCurrentIteration]: We unified 14 AI predicates to 14 [2019-10-13 21:05:46,949 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:05:46,949 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:05:46,949 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 8, 8] total 14 [2019-10-13 21:05:46,950 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887601704] [2019-10-13 21:05:46,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:05:46,951 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:05:46,951 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:05:46,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:05:46,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:46,952 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 2 states. [2019-10-13 21:05:46,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:05:46,954 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-10-13 21:05:46,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:05:46,954 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-13 21:05:46,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:05:46,955 INFO L225 Difference]: With dead ends: 20 [2019-10-13 21:05:46,955 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:05:46,955 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:05:46,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:05:46,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:05:46,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:05:46,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:05:46,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-13 21:05:46,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:05:46,957 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:05:46,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:05:46,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:05:46,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:05:47,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:05:47,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:05:47,188 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:47,189 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:47,189 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:47,189 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:05:47,189 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:05:47,190 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:05:47,190 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:05:47,190 INFO L439 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: false [2019-10-13 21:05:47,190 INFO L443 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-10-13 21:05:47,190 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 19 34) no Hoare annotation was computed. [2019-10-13 21:05:47,190 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 19 34) no Hoare annotation was computed. [2019-10-13 21:05:47,191 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 19 34) the Hoare annotation is: true [2019-10-13 21:05:47,191 INFO L443 ceAbstractionStarter]: For program point L30-2(lines 30 32) no Hoare annotation was computed. [2019-10-13 21:05:47,191 INFO L439 ceAbstractionStarter]: At program point L30-3(lines 30 32) the Hoare annotation is: false [2019-10-13 21:05:47,191 INFO L443 ceAbstractionStarter]: For program point L30-4(lines 30 32) no Hoare annotation was computed. [2019-10-13 21:05:47,191 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2019-10-13 21:05:47,191 INFO L439 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: false [2019-10-13 21:05:47,192 INFO L443 ceAbstractionStarter]: For program point L24-4(lines 24 28) no Hoare annotation was computed. [2019-10-13 21:05:47,192 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2019-10-13 21:05:47,192 INFO L443 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2019-10-13 21:05:47,192 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2019-10-13 21:05:47,192 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-10-13 21:05:47,192 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2019-10-13 21:05:47,193 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2019-10-13 21:05:47,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:05:47 BoogieIcfgContainer [2019-10-13 21:05:47,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:05:47,202 INFO L168 Benchmark]: Toolchain (without parser) took 3222.27 ms. Allocated memory was 135.8 MB in the beginning and 226.0 MB in the end (delta: 90.2 MB). Free memory was 100.3 MB in the beginning and 183.3 MB in the end (delta: -83.0 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:47,203 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 21:05:47,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.88 ms. Allocated memory is still 135.8 MB. Free memory was 100.1 MB in the beginning and 90.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:47,205 INFO L168 Benchmark]: Boogie Preprocessor took 113.57 ms. Allocated memory was 135.8 MB in the beginning and 198.2 MB in the end (delta: 62.4 MB). Free memory was 90.1 MB in the beginning and 175.3 MB in the end (delta: -85.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:47,206 INFO L168 Benchmark]: RCFGBuilder took 279.40 ms. Allocated memory is still 198.2 MB. Free memory was 175.3 MB in the beginning and 162.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:47,207 INFO L168 Benchmark]: TraceAbstraction took 2495.54 ms. Allocated memory was 198.2 MB in the beginning and 226.0 MB in the end (delta: 27.8 MB). Free memory was 161.4 MB in the beginning and 183.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:05:47,210 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 135.8 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 328.88 ms. Allocated memory is still 135.8 MB. Free memory was 100.1 MB in the beginning and 90.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.57 ms. Allocated memory was 135.8 MB in the beginning and 198.2 MB in the end (delta: 62.4 MB). Free memory was 90.1 MB in the beginning and 175.3 MB in the end (delta: -85.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 279.40 ms. Allocated memory is still 198.2 MB. Free memory was 175.3 MB in the beginning and 162.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2495.54 ms. Allocated memory was 198.2 MB in the beginning and 226.0 MB in the end (delta: 27.8 MB). Free memory was 161.4 MB in the beginning and 183.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 3 SDslu, 13 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 8 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 1 QuantifiedInterpolants, 2888 SizeOfPredicates, 10 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 135, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9464285714285714, AVG_VARS_REMOVED_DURING_WEAKENING: 0.7857142857142857, AVG_WEAKENED_CONJUNCTS: 0.42857142857142855, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...