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-invariants/odd.c
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 21:05:57,257 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 21:05:57,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 21:05:57,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 21:05:57,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 21:05:57,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 21:05:57,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 21:05:57,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 21:05:57,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 21:05:57,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 21:05:57,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 21:05:57,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 21:05:57,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 21:05:57,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 21:05:57,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 21:05:57,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 21:05:57,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 21:05:57,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 21:05:57,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 21:05:57,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 21:05:57,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 21:05:57,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 21:05:57,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 21:05:57,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 21:05:57,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 21:05:57,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 21:05:57,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 21:05:57,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2019-10-13 21:05:57,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-10-13 21:05:57,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2019-10-13 21:05:57,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 21:05:57,346 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 21:05:57,364 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 21:05:57,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 21:05:57,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 21:05:57,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 21:05:57,366 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 21:05:57,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 21:05:57,366 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 21:05:57,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 21:05:57,367 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 21:05:57,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 21:05:57,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 21:05:57,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 21:05:57,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 21:05:57,369 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 21:05:57,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 21:05:57,369 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 21:05:57,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 21:05:57,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 21:05:57,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 21:05:57,370 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 21:05:57,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 21:05:57,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 21:05:57,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 21:05:57,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 21:05:57,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 21:05:57,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 21:05:57,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 21:05:57,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 21:05:57,372 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 21:05:57,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 21:05:57,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 21:05:57,667 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 21:05:57,668 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 21:05:57,669 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 21:05:57,669 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c
[2019-10-13 21:05:57,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1234effc/d820d3647ba44484b1b80f17396d2dd4/FLAGfd36a2f0e
[2019-10-13 21:05:58,120 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 21:05:58,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c
[2019-10-13 21:05:58,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1234effc/d820d3647ba44484b1b80f17396d2dd4/FLAGfd36a2f0e
[2019-10-13 21:05:58,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1234effc/d820d3647ba44484b1b80f17396d2dd4
[2019-10-13 21:05:58,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 21:05:58,492 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 21:05:58,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 21:05:58,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 21:05:58,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 21:05:58,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:58" (1/1) ...
[2019-10-13 21:05:58,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de8a91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58, skipping insertion in model container
[2019-10-13 21:05:58,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:05:58" (1/1) ...
[2019-10-13 21:05:58,508 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 21:05:58,523 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 21:05:58,729 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 21:05:58,738 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 21:05:58,758 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 21:05:58,773 INFO L192 MainTranslator]: Completed translation
[2019-10-13 21:05:58,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58 WrapperNode
[2019-10-13 21:05:58,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 21:05:58,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 21:05:58,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 21:05:58,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 21:05:58,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58" (1/1) ...
[2019-10-13 21:05:58,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58" (1/1) ...
[2019-10-13 21:05:58,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58" (1/1) ...
[2019-10-13 21:05:58,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58" (1/1) ...
[2019-10-13 21:05:58,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58" (1/1) ...
[2019-10-13 21:05:58,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58" (1/1) ...
[2019-10-13 21:05:58,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58" (1/1) ...
[2019-10-13 21:05:58,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 21:05:58,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 21:05:58,941 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 21:05:58,941 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 21:05:58,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58" (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 21:05:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 21:05:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 21:05:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-13 21:05:58,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 21:05:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 21:05:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 21:05:58,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-13 21:05:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 21:05:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 21:05:59,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 21:05:59,160 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 21:05:59,160 INFO L284 CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-13 21:05:59,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:59 BoogieIcfgContainer
[2019-10-13 21:05:59,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 21:05:59,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 21:05:59,163 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 21:05:59,166 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 21:05:59,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:05:58" (1/3) ...
[2019-10-13 21:05:59,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407e9ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:59, skipping insertion in model container
[2019-10-13 21:05:59,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:05:58" (2/3) ...
[2019-10-13 21:05:59,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407e9ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:05:59, skipping insertion in model container
[2019-10-13 21:05:59,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:05:59" (3/3) ...
[2019-10-13 21:05:59,169 INFO L109 eAbstractionObserver]: Analyzing ICFG odd.c
[2019-10-13 21:05:59,178 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 21:05:59,186 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 21:05:59,197 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 21:05:59,220 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 21:05:59,221 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 21:05:59,221 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 21:05:59,221 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 21:05:59,221 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 21:05:59,221 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 21:05:59,222 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 21:05:59,222 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 21:05:59,239 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states.
[2019-10-13 21:05:59,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2019-10-13 21:05:59,244 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 21:05:59,245 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 21:05:59,247 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 21:05:59,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 21:05:59,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times
[2019-10-13 21:05:59,263 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 21:05:59,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823106243]
[2019-10-13 21:05:59,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:05:59,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:05:59,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 21:05:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 21:05:59,373 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 21:05:59,374 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823106243]
[2019-10-13 21:05:59,374 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 21:05:59,375 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-10-13 21:05:59,375 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437082251]
[2019-10-13 21:05:59,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 21:05:59,381 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 21:05:59,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 21:05:59,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 21:05:59,399 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states.
[2019-10-13 21:05:59,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 21:05:59,418 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions.
[2019-10-13 21:05:59,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 21:05:59,419 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10
[2019-10-13 21:05:59,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 21:05:59,427 INFO L225 Difference]: With dead ends: 31
[2019-10-13 21:05:59,427 INFO L226 Difference]: Without dead ends: 12
[2019-10-13 21:05:59,431 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 21:05:59,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2019-10-13 21:05:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2019-10-13 21:05:59,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2019-10-13 21:05:59,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions.
[2019-10-13 21:05:59,465 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10
[2019-10-13 21:05:59,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 21:05:59,466 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions.
[2019-10-13 21:05:59,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 21:05:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions.
[2019-10-13 21:05:59,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-10-13 21:05:59,467 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 21:05:59,467 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 21:05:59,467 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 21:05:59,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 21:05:59,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1890620952, now seen corresponding path program 1 times
[2019-10-13 21:05:59,468 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 21:05:59,469 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987030492]
[2019-10-13 21:05:59,469 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:05:59,469 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:05:59,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 21:05:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 21:06:05,972 WARN L191 SmtUtils]: Spent 6.34 s on a formula simplification. DAG size of input: 92 DAG size of output: 13
[2019-10-13 21:06:05,996 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 21:06:05,997 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987030492]
[2019-10-13 21:06:05,997 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 21:06:05,998 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 21:06:05,998 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383316731]
[2019-10-13 21:06:06,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 21:06:06,000 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 21:06:06,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 21:06:06,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 21:06:06,002 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states.
[2019-10-13 21:06:06,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 21:06:06,038 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions.
[2019-10-13 21:06:06,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2019-10-13 21:06:06,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11
[2019-10-13 21:06:06,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 21:06:06,040 INFO L225 Difference]: With dead ends: 12
[2019-10-13 21:06:06,040 INFO L226 Difference]: Without dead ends: 0
[2019-10-13 21:06:06,041 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-13 21:06:06,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-10-13 21:06:06,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-10-13 21:06:06,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-10-13 21:06:06,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-10-13 21:06:06,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11
[2019-10-13 21:06:06,043 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 21:06:06,044 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-10-13 21:06:06,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 21:06:06,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-10-13 21:06:06,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-10-13 21:06:06,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-10-13 21:06:06,091 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2019-10-13 21:06:06,092 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 21:06:06,092 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 21:06:06,092 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true
[2019-10-13 21:06:06,093 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-10-13 21:06:06,093 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 21:06:06,093 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 16) the Hoare annotation is: true
[2019-10-13 21:06:06,093 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 16) no Hoare annotation was computed.
[2019-10-13 21:06:06,093 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed.
[2019-10-13 21:06:06,094 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 16) no Hoare annotation was computed.
[2019-10-13 21:06:06,094 INFO L443 ceAbstractionStarter]: For program point L11-1(lines 11 13) no Hoare annotation was computed.
[2019-10-13 21:06:06,095 INFO L439 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: (not (= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~x~0 (* .cse0 (- 2))) 4294967296))))))
[2019-10-13 21:06:06,095 INFO L439 ceAbstractionStarter]: At program point L11-4(lines 11 13) the Hoare annotation is: (not (= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ main_~x~0 (* .cse0 (- 2))) 4294967296))))))
[2019-10-13 21:06:06,095 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed.
[2019-10-13 21:06:06,096 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true
[2019-10-13 21:06:06,096 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed.
[2019-10-13 21:06:06,096 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed.
[2019-10-13 21:06:06,097 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed.
[2019-10-13 21:06:06,097 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed.
[2019-10-13 21:06:06,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:06:06 BoogieIcfgContainer
[2019-10-13 21:06:06,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-10-13 21:06:06,116 INFO L168 Benchmark]: Toolchain (without parser) took 7623.69 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 103.8 MB in the beginning and 128.2 MB in the end (delta: -24.5 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:06,117 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-10-13 21:06:06,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.13 ms. Allocated memory is still 145.8 MB. Free memory was 103.4 MB in the beginning and 94.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:06,120 INFO L168 Benchmark]: Boogie Preprocessor took 165.31 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 94.3 MB in the beginning and 183.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:06,121 INFO L168 Benchmark]: RCFGBuilder took 220.60 ms. Allocated memory is still 204.5 MB. Free memory was 182.9 MB in the beginning and 172.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:06,122 INFO L168 Benchmark]: TraceAbstraction took 6951.17 ms. Allocated memory is still 204.5 MB. Free memory was 171.8 MB in the beginning and 128.2 MB in the end (delta: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:06,126 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 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 282.13 ms. Allocated memory is still 145.8 MB. Free memory was 103.4 MB in the beginning and 94.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 165.31 ms. Allocated memory was 145.8 MB in the beginning and 204.5 MB in the end (delta: 58.7 MB). Free memory was 94.3 MB in the beginning and 183.6 MB in the end (delta: -89.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 220.60 ms. Allocated memory is still 204.5 MB. Free memory was 182.9 MB in the beginning and 172.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 6951.17 ms. Allocated memory is still 204.5 MB. Free memory was 171.8 MB in the beginning and 128.2 MB in the end (delta: 43.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 5]: 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: 11]: Loop Invariant
Derived loop invariant: !(x == 2 * (x / 2) + 4294967296 * ((x + x / 2 * -2) / 4294967296))
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 6.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 1 SDslu, 20 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 45 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 811 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...