/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c
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This is Ultimate 0.1.24-fb55353
[2019-11-06 21:21:52,285 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-11-06 21:21:52,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-11-06 21:21:52,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-11-06 21:21:52,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-06 21:21:52,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-06 21:21:52,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-11-06 21:21:52,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-11-06 21:21:52,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-11-06 21:21:52,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2019-11-06 21:21:52,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
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[2019-11-06 21:21:52,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-06 21:21:52,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-06 21:21:52,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-06 21:21:52,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-06 21:21:52,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-11-06 21:21:52,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-11-06 21:21:52,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-11-06 21:21:52,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-11-06 21:21:52,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2019-11-06 21:21:52,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-11-06 21:21:52,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2019-11-06 21:21:52,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-11-06 21:21:52,360 INFO L113 SettingsManager]: Loading preferences was successful
[2019-11-06 21:21:52,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-06 21:21:52,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-06 21:21:52,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-11-06 21:21:52,362 INFO L138 SettingsManager]: * Use SBE=true
[2019-11-06 21:21:52,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-06 21:21:52,362 INFO L138 SettingsManager]: * sizeof long=4
[2019-11-06 21:21:52,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-11-06 21:21:52,362 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-11-06 21:21:52,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-11-06 21:21:52,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-11-06 21:21:52,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-06 21:21:52,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-11-06 21:21:52,363 INFO L138 SettingsManager]: * sizeof long double=12
[2019-11-06 21:21:52,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-11-06 21:21:52,364 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-11-06 21:21:52,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-11-06 21:21:52,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-06 21:21:52,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-11-06 21:21:52,364 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-11-06 21:21:52,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-11-06 21:21:52,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-06 21:21:52,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-06 21:21:52,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-11-06 21:21:52,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-06 21:21:52,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-11-06 21:21:52,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-06 21:21:52,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-06 21:21:52,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2019-11-06 21:21:52,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-06 21:21:52,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-06 21:21:52,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-06 21:21:52,648 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-11-06 21:21:52,648 INFO L275 PluginConnector]: CDTParser initialized
[2019-11-06 21:21:52,649 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c
[2019-11-06 21:21:52,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd7ae0b8a/c230a9aa3dae4888ab4e1424a2a1399a/FLAG70029e38d
[2019-11-06 21:21:53,149 INFO L306 CDTParser]: Found 1 translation units.
[2019-11-06 21:21:53,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+cfa-reducer.c
[2019-11-06 21:21:53,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd7ae0b8a/c230a9aa3dae4888ab4e1424a2a1399a/FLAG70029e38d
[2019-11-06 21:21:53,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd7ae0b8a/c230a9aa3dae4888ab4e1424a2a1399a
[2019-11-06 21:21:53,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-06 21:21:53,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-11-06 21:21:53,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-06 21:21:53,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-06 21:21:53,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-06 21:21:53,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:21:53" (1/1) ...
[2019-11-06 21:21:53,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6170030d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53, skipping insertion in model container
[2019-11-06 21:21:53,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:21:53" (1/1) ...
[2019-11-06 21:21:53,622 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-11-06 21:21:53,655 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-11-06 21:21:53,860 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-06 21:21:53,865 INFO L188 MainTranslator]: Completed pre-run
[2019-11-06 21:21:53,885 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-11-06 21:21:53,899 INFO L192 MainTranslator]: Completed translation
[2019-11-06 21:21:53,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53 WrapperNode
[2019-11-06 21:21:53,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-06 21:21:53,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-06 21:21:53,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-06 21:21:53,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-11-06 21:21:53,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53" (1/1) ...
[2019-11-06 21:21:53,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53" (1/1) ...
[2019-11-06 21:21:53,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53" (1/1) ...
[2019-11-06 21:21:53,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53" (1/1) ...
[2019-11-06 21:21:53,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53" (1/1) ...
[2019-11-06 21:21:53,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53" (1/1) ...
[2019-11-06 21:21:54,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53" (1/1) ...
[2019-11-06 21:21:54,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-06 21:21:54,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-06 21:21:54,002 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-11-06 21:21:54,002 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-11-06 21:21:54,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-06 21:21:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-11-06 21:21:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-06 21:21:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-11-06 21:21:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-11-06 21:21:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-11-06 21:21:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-11-06 21:21:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-11-06 21:21:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-11-06 21:21:54,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-06 21:21:54,264 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-06 21:21:54,264 INFO L284 CfgBuilder]: Removed 0 assume(true) statements.
[2019-11-06 21:21:54,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:21:54 BoogieIcfgContainer
[2019-11-06 21:21:54,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-06 21:21:54,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-06 21:21:54,273 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-11-06 21:21:54,282 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-11-06 21:21:54,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:21:53" (1/3) ...
[2019-11-06 21:21:54,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442a89c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:21:54, skipping insertion in model container
[2019-11-06 21:21:54,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:53" (2/3) ...
[2019-11-06 21:21:54,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442a89c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:21:54, skipping insertion in model container
[2019-11-06 21:21:54,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:21:54" (3/3) ...
[2019-11-06 21:21:54,290 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c
[2019-11-06 21:21:54,313 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-06 21:21:54,330 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-11-06 21:21:54,353 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-11-06 21:21:54,378 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-11-06 21:21:54,378 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-11-06 21:21:54,378 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-06 21:21:54,379 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-06 21:21:54,379 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-06 21:21:54,379 INFO L378 AbstractCegarLoop]: Difference is false
[2019-11-06 21:21:54,379 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-06 21:21:54,379 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-06 21:21:54,397 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states.
[2019-11-06 21:21:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-11-06 21:21:54,403 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-06 21:21:54,403 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 21:21:54,405 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 21:21:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 21:21:54,411 INFO L82 PathProgramCache]: Analyzing trace with hash 964689295, now seen corresponding path program 1 times
[2019-11-06 21:21:54,419 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 21:21:54,420 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903609010]
[2019-11-06 21:21:54,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 21:21:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:54,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 21:21:54,648 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903609010]
[2019-11-06 21:21:54,649 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 21:21:54,650 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-11-06 21:21:54,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173176550]
[2019-11-06 21:21:54,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-11-06 21:21:54,657 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 21:21:54,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-11-06 21:21:54,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-11-06 21:21:54,675 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states.
[2019-11-06 21:21:54,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 21:21:54,833 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions.
[2019-11-06 21:21:54,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2019-11-06 21:21:54,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11
[2019-11-06 21:21:54,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 21:21:54,850 INFO L225 Difference]: With dead ends: 36
[2019-11-06 21:21:54,850 INFO L226 Difference]: Without dead ends: 20
[2019-11-06 21:21:54,854 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-11-06 21:21:54,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2019-11-06 21:21:54,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17.
[2019-11-06 21:21:54,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2019-11-06 21:21:54,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions.
[2019-11-06 21:21:54,892 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11
[2019-11-06 21:21:54,893 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-06 21:21:54,893 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions.
[2019-11-06 21:21:54,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-11-06 21:21:54,893 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions.
[2019-11-06 21:21:54,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2019-11-06 21:21:54,894 INFO L402 BasicCegarLoop]: Found error trace
[2019-11-06 21:21:54,894 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 21:21:54,896 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 21:21:54,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 21:21:54,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2096975293, now seen corresponding path program 1 times
[2019-11-06 21:21:54,897 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 21:21:54,897 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354592376]
[2019-11-06 21:21:54,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 21:21:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 21:21:55,226 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354592376]
[2019-11-06 21:21:55,228 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 21:21:55,228 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-11-06 21:21:55,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478728806]
[2019-11-06 21:21:55,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-11-06 21:21:55,231 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 21:21:55,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-11-06 21:21:55,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-11-06 21:21:55,233 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 5 states.
[2019-11-06 21:21:55,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 21:21:55,650 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions.
[2019-11-06 21:21:55,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2019-11-06 21:21:55,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14
[2019-11-06 21:21:55,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 21:21:55,651 INFO L225 Difference]: With dead ends: 29
[2019-11-06 21:21:55,652 INFO L226 Difference]: Without dead ends: 0
[2019-11-06 21:21:55,653 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2019-11-06 21:21:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-11-06 21:21:55,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-11-06 21:21:55,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-11-06 21:21:55,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-11-06 21:21:55,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14
[2019-11-06 21:21:55,654 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-11-06 21:21:55,654 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-11-06 21:21:55,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-11-06 21:21:55,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-11-06 21:21:55,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-11-06 21:21:55,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-11-06 21:21:55,755 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2019-11-06 21:21:55,755 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_107~0 |old(~__return_107~0)|))
[2019-11-06 21:21:55,756 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-11-06 21:21:55,756 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-11-06 21:21:55,756 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true
[2019-11-06 21:21:55,757 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-11-06 21:21:55,757 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-11-06 21:21:55,757 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 47) no Hoare annotation was computed.
[2019-11-06 21:21:55,757 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 7 76) no Hoare annotation was computed.
[2019-11-06 21:21:55,757 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 74) no Hoare annotation was computed.
[2019-11-06 21:21:55,757 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 7 76) no Hoare annotation was computed.
[2019-11-06 21:21:55,758 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 7 76) the Hoare annotation is: (= ~__return_107~0 |old(~__return_107~0)|)
[2019-11-06 21:21:55,758 INFO L443 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed.
[2019-11-06 21:21:55,758 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed.
[2019-11-06 21:21:55,758 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed.
[2019-11-06 21:21:55,758 INFO L443 ceAbstractionStarter]: For program point L16(lines 16 48) no Hoare annotation was computed.
[2019-11-06 21:21:55,759 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 75) no Hoare annotation was computed.
[2019-11-06 21:21:55,759 INFO L439 ceAbstractionStarter]: At program point L45(lines 8 76) the Hoare annotation is: (let ((.cse1 (= ~__return_107~0 |old(~__return_107~0)|))) (or (and (<= (* 2863311531 main_~main__x~0) (let ((.cse0 (div main_~main__x~0 4294967296))) (+ (* 12297829383904690176 .cse0) (* 8589934592 (div (+ (* .cse0 (- 4294967296)) main_~main__x~0) 3)) 1431655765))) .cse1) (and (<= (div main_~main__y~0 4294967296) 0) (<= 1 main_~main__y~0) .cse1)))
[2019-11-06 21:21:55,759 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 46) no Hoare annotation was computed.
[2019-11-06 21:21:55,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:21:55 BoogieIcfgContainer
[2019-11-06 21:21:55,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-11-06 21:21:55,779 INFO L168 Benchmark]: Toolchain (without parser) took 2201.05 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.6 MB in the beginning and 99.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB.
[2019-11-06 21:21:55,780 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2019-11-06 21:21:55,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.33 ms. Allocated memory is still 137.4 MB. Free memory was 100.4 MB in the beginning and 90.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
[2019-11-06 21:21:55,782 INFO L168 Benchmark]: Boogie Preprocessor took 101.02 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 90.7 MB in the beginning and 179.0 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB.
[2019-11-06 21:21:55,783 INFO L168 Benchmark]: RCFGBuilder took 266.75 ms. Allocated memory is still 200.8 MB. Free memory was 179.0 MB in the beginning and 167.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB.
[2019-11-06 21:21:55,784 INFO L168 Benchmark]: TraceAbstraction took 1503.04 ms. Allocated memory is still 200.8 MB. Free memory was 166.5 MB in the beginning and 99.2 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB.
[2019-11-06 21:21:55,788 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 315.33 ms. Allocated memory is still 137.4 MB. Free memory was 100.4 MB in the beginning and 90.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 101.02 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 90.7 MB in the beginning and 179.0 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 266.75 ms. Allocated memory is still 200.8 MB. Free memory was 179.0 MB in the beginning and 167.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1503.04 ms. Allocated memory is still 200.8 MB. Free memory was 166.5 MB in the beginning and 99.2 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 61]: 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: 8]: Loop Invariant
Derived loop invariant: (2863311531 * main__x <= 12297829383904690176 * (main__x / 4294967296) + 8589934592 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 1431655765 && __return_107 == \old(__return_107)) || ((main__y / 4294967296 <= 0 && 1 <= main__y) && __return_107 == \old(__return_107))
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 46 SDslu, 22 SDs, 0 SdLazy, 49 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 51 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 1505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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...