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/array-examples/standard_copy4_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:06,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:06,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:06,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:06,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:06,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:06,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:06,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:06,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:06,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:06,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:06,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:06,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:06,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:06,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:06,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:06,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:06,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:06,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:06,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:06,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:06,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:06,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:06,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:06,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:06,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:06,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:06,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:06,969 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 19:53:06,990 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:06,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:06,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:06,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:06,993 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:06,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:06,994 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:06,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:06,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:06,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:06,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:06,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:06,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:06,996 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:06,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:06,996 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:06,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:06,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:06,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:06,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:06,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:06,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:06,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:06,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:06,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:06,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:06,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:06,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:06,999 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 19:53:07,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:07,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:07,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:07,300 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:07,300 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:07,301 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy4_ground-2.i [2019-10-13 19:53:07,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98150b286/11ba8f67d5b843ed956edcdd5cc2106e/FLAG240141d40 [2019-10-13 19:53:07,804 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:07,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copy4_ground-2.i [2019-10-13 19:53:07,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98150b286/11ba8f67d5b843ed956edcdd5cc2106e/FLAG240141d40 [2019-10-13 19:53:08,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98150b286/11ba8f67d5b843ed956edcdd5cc2106e [2019-10-13 19:53:08,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:08,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:08,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:08,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:08,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:08,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:08" (1/1) ... [2019-10-13 19:53:08,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8a10c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08, skipping insertion in model container [2019-10-13 19:53:08,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:08" (1/1) ... [2019-10-13 19:53:08,235 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:08,254 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:08,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:08,477 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:08,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:08,523 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:08,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08 WrapperNode [2019-10-13 19:53:08,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:08,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:08,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:08,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:08,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08" (1/1) ... [2019-10-13 19:53:08,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08" (1/1) ... [2019-10-13 19:53:08,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08" (1/1) ... [2019-10-13 19:53:08,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08" (1/1) ... [2019-10-13 19:53:08,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08" (1/1) ... [2019-10-13 19:53:08,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08" (1/1) ... [2019-10-13 19:53:08,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08" (1/1) ... [2019-10-13 19:53:08,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:08,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:08,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:08,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:08,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08" (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 19:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:08,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:08,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:08,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:08,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:08,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:09,045 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:09,045 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-13 19:53:09,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:09 BoogieIcfgContainer [2019-10-13 19:53:09,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:09,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:09,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:09,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:09,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:08" (1/3) ... [2019-10-13 19:53:09,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6320694d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:09, skipping insertion in model container [2019-10-13 19:53:09,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:08" (2/3) ... [2019-10-13 19:53:09,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6320694d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:09, skipping insertion in model container [2019-10-13 19:53:09,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:09" (3/3) ... [2019-10-13 19:53:09,055 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copy4_ground-2.i [2019-10-13 19:53:09,066 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:09,074 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:09,087 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:09,132 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:09,132 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:09,132 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:09,133 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:09,133 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:09,133 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:09,136 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:09,136 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:09,173 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-10-13 19:53:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-13 19:53:09,182 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:09,183 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:09,184 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:09,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1010407240, now seen corresponding path program 1 times [2019-10-13 19:53:09,205 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:09,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743431066] [2019-10-13 19:53:09,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:09,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:09,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:09,344 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 19:53:09,345 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743431066] [2019-10-13 19:53:09,346 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:09,346 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:09,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118228068] [2019-10-13 19:53:09,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:09,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:09,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:09,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:09,370 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-10-13 19:53:09,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:09,396 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2019-10-13 19:53:09,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:09,398 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-10-13 19:53:09,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:09,407 INFO L225 Difference]: With dead ends: 64 [2019-10-13 19:53:09,407 INFO L226 Difference]: Without dead ends: 31 [2019-10-13 19:53:09,411 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 19:53:09,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-13 19:53:09,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-13 19:53:09,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-13 19:53:09,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2019-10-13 19:53:09,452 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 21 [2019-10-13 19:53:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:09,453 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2019-10-13 19:53:09,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:09,453 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2019-10-13 19:53:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-13 19:53:09,455 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:09,455 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:09,455 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:09,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:09,456 INFO L82 PathProgramCache]: Analyzing trace with hash 555030978, now seen corresponding path program 1 times [2019-10-13 19:53:09,456 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:09,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666663344] [2019-10-13 19:53:09,457 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:09,458 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:09,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:09,601 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 19:53:09,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666663344] [2019-10-13 19:53:09,602 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:09,603 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:09,603 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357366761] [2019-10-13 19:53:09,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:09,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:09,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:09,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:09,608 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 3 states. [2019-10-13 19:53:09,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:09,654 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2019-10-13 19:53:09,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:09,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-13 19:53:09,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:09,657 INFO L225 Difference]: With dead ends: 56 [2019-10-13 19:53:09,658 INFO L226 Difference]: Without dead ends: 33 [2019-10-13 19:53:09,660 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 19:53:09,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-13 19:53:09,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-10-13 19:53:09,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-13 19:53:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2019-10-13 19:53:09,675 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 21 [2019-10-13 19:53:09,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:09,676 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2019-10-13 19:53:09,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:09,676 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2019-10-13 19:53:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-13 19:53:09,678 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:09,679 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:09,680 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:09,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:09,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1099948320, now seen corresponding path program 1 times [2019-10-13 19:53:09,681 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:09,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922473990] [2019-10-13 19:53:09,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:09,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:09,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:53:09,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922473990] [2019-10-13 19:53:09,795 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:09,795 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:09,796 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267632807] [2019-10-13 19:53:09,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:09,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:09,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:09,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:09,798 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand 3 states. [2019-10-13 19:53:09,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:09,888 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2019-10-13 19:53:09,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:09,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-13 19:53:09,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:09,891 INFO L225 Difference]: With dead ends: 60 [2019-10-13 19:53:09,891 INFO L226 Difference]: Without dead ends: 40 [2019-10-13 19:53:09,892 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 19:53:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-13 19:53:09,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2019-10-13 19:53:09,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-13 19:53:09,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2019-10-13 19:53:09,900 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 23 [2019-10-13 19:53:09,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:09,900 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2019-10-13 19:53:09,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:09,900 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2019-10-13 19:53:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-13 19:53:09,902 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:09,902 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:09,902 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:09,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:09,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1986876888, now seen corresponding path program 1 times [2019-10-13 19:53:09,903 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:09,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346837232] [2019-10-13 19:53:09,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:09,904 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:09,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:10,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 19:53:10,009 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346837232] [2019-10-13 19:53:10,010 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600421977] [2019-10-13 19:53:10,010 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 19:53:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:10,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:10,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 19:53:10,151 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 19:53:10,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1689042369] [2019-10-13 19:53:10,210 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 32 [2019-10-13 19:53:10,278 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:10,278 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:10,333 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:10,335 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 38 variables. [2019-10-13 19:53:10,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:10,339 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:10,380 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:10,380 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:10,382 INFO L553 sIntCurrentIteration]: We unified 30 AI predicates to 30 [2019-10-13 19:53:10,383 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:10,383 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:10,384 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:10,384 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917418224] [2019-10-13 19:53:10,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:10,386 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:10,386 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:10,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:10,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:10,387 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 2 states. [2019-10-13 19:53:10,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:10,390 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2019-10-13 19:53:10,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:10,390 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2019-10-13 19:53:10,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:10,391 INFO L225 Difference]: With dead ends: 36 [2019-10-13 19:53:10,391 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:10,392 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 19:53:10,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:10,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:10,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:10,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:10,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-10-13 19:53:10,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:10,393 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:10,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:10,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:10,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:10,599 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:10,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:10,661 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:10,661 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:10,661 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:10,661 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:10,662 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:10,662 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:10,662 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:10,662 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 33) no Hoare annotation was computed. [2019-10-13 19:53:10,662 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 21) no Hoare annotation was computed. [2019-10-13 19:53:10,662 INFO L439 ceAbstractionStarter]: At program point L19-3(lines 19 21) the Hoare annotation is: false [2019-10-13 19:53:10,663 INFO L443 ceAbstractionStarter]: For program point L19-4(lines 19 21) no Hoare annotation was computed. [2019-10-13 19:53:10,663 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2019-10-13 19:53:10,663 INFO L439 ceAbstractionStarter]: At program point L11-3(lines 11 14) the Hoare annotation is: false [2019-10-13 19:53:10,663 INFO L443 ceAbstractionStarter]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2019-10-13 19:53:10,663 INFO L443 ceAbstractionStarter]: For program point L16-2(lines 16 18) no Hoare annotation was computed. [2019-10-13 19:53:10,663 INFO L439 ceAbstractionStarter]: At program point L16-3(lines 16 18) the Hoare annotation is: false [2019-10-13 19:53:10,664 INFO L443 ceAbstractionStarter]: For program point L16-4(lines 16 18) no Hoare annotation was computed. [2019-10-13 19:53:10,664 INFO L443 ceAbstractionStarter]: For program point L29-2(lines 29 31) no Hoare annotation was computed. [2019-10-13 19:53:10,664 INFO L439 ceAbstractionStarter]: At program point L29-3(lines 29 31) the Hoare annotation is: false [2019-10-13 19:53:10,664 INFO L443 ceAbstractionStarter]: For program point L29-4(lines 29 31) no Hoare annotation was computed. [2019-10-13 19:53:10,664 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 27) no Hoare annotation was computed. [2019-10-13 19:53:10,664 INFO L439 ceAbstractionStarter]: At program point L25-3(lines 25 27) the Hoare annotation is: false [2019-10-13 19:53:10,665 INFO L443 ceAbstractionStarter]: For program point L25-4(lines 25 27) no Hoare annotation was computed. [2019-10-13 19:53:10,665 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 33) no Hoare annotation was computed. [2019-10-13 19:53:10,665 INFO L439 ceAbstractionStarter]: At program point L30(line 30) the Hoare annotation is: false [2019-10-13 19:53:10,665 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 33) the Hoare annotation is: true [2019-10-13 19:53:10,665 INFO L443 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-10-13 19:53:10,666 INFO L443 ceAbstractionStarter]: For program point L22-2(lines 22 24) no Hoare annotation was computed. [2019-10-13 19:53:10,666 INFO L439 ceAbstractionStarter]: At program point L22-3(lines 22 24) the Hoare annotation is: false [2019-10-13 19:53:10,666 INFO L443 ceAbstractionStarter]: For program point L22-4(lines 22 24) no Hoare annotation was computed. [2019-10-13 19:53:10,666 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:10,666 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:10,666 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:10,666 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:10,667 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:10,667 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:10,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:10 BoogieIcfgContainer [2019-10-13 19:53:10,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:10,684 INFO L168 Benchmark]: Toolchain (without parser) took 2461.76 ms. Allocated memory was 144.7 MB in the beginning and 233.8 MB in the end (delta: 89.1 MB). Free memory was 102.2 MB in the beginning and 198.2 MB in the end (delta: -96.0 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:10,686 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 19:53:10,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.03 ms. Allocated memory is still 144.7 MB. Free memory was 102.2 MB in the beginning and 91.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:10,689 INFO L168 Benchmark]: Boogie Preprocessor took 146.20 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.9 MB in the beginning and 179.3 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:10,697 INFO L168 Benchmark]: RCFGBuilder took 376.70 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 160.7 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:10,699 INFO L168 Benchmark]: TraceAbstraction took 1629.31 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 160.7 MB in the beginning and 198.2 MB in the end (delta: -37.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:10,706 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 305.03 ms. Allocated memory is still 144.7 MB. Free memory was 102.2 MB in the beginning and 91.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.20 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.9 MB in the beginning and 179.3 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 376.70 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 160.7 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1629.31 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 160.7 MB in the beginning and 198.2 MB in the end (delta: -37.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 1 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 5 SDslu, 52 SDs, 0 SdLazy, 25 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 15 PreInvPairs, 15 NumberOfFragments, 12 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 4608 SizeOfPredicates, 1 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 13/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 129, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9083333333333333, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0333333333333334, AVG_WEAKENED_CONJUNCTS: 0.2, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...