/usr/bin/java -ea -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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-lit/gcnr2008.i
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This is Ultimate 0.1.25-267fbe0
[2020-07-18 00:49:22,349 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-18 00:49:22,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-18 00:49:22,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-18 00:49:22,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-18 00:49:22,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-18 00:49:22,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-07-18 00:49:22,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-07-18 00:49:22,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-18 00:49:22,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-18 00:49:22,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-18 00:49:22,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-18 00:49:22,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-18 00:49:22,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2020-07-18 00:49:22,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-07-18 00:49:22,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-07-18 00:49:22,405 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-18 00:49:22,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-18 00:49:22,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-18 00:49:22,407 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-18 00:49:22,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-18 00:49:22,407 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-18 00:49:22,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-18 00:49:22,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-18 00:49:22,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-18 00:49:22,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-18 00:49:22,408 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-18 00:49:22,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-18 00:49:22,409 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-18 00:49:22,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-18 00:49:22,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-18 00:49:22,409 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-07-18 00:49:22,410 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-18 00:49:22,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-18 00:49:22,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-18 00:49:22,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-18 00:49:22,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-07-18 00:49:22,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-18 00:49:22,411 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
[2020-07-18 00:49:22,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-18 00:49:22,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-18 00:49:22,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-18 00:49:22,725 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-18 00:49:22,725 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-18 00:49:22,726 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gcnr2008.i
[2020-07-18 00:49:22,788 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7adbcf8c4/005b5735981d48d9b1ff820c2e69c524/FLAGf911d61d1
[2020-07-18 00:49:23,169 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-18 00:49:23,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gcnr2008.i
[2020-07-18 00:49:23,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7adbcf8c4/005b5735981d48d9b1ff820c2e69c524/FLAGf911d61d1
[2020-07-18 00:49:23,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7adbcf8c4/005b5735981d48d9b1ff820c2e69c524
[2020-07-18 00:49:23,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-18 00:49:23,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-18 00:49:23,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-18 00:49:23,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-18 00:49:23,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-18 00:49:23,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:49:23" (1/1) ...
[2020-07-18 00:49:23,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487f54f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23, skipping insertion in model container
[2020-07-18 00:49:23,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:49:23" (1/1) ...
[2020-07-18 00:49:23,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-18 00:49:23,604 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-18 00:49:23,783 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-18 00:49:23,788 INFO L203 MainTranslator]: Completed pre-run
[2020-07-18 00:49:23,809 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-18 00:49:23,823 INFO L208 MainTranslator]: Completed translation
[2020-07-18 00:49:23,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23 WrapperNode
[2020-07-18 00:49:23,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-18 00:49:23,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-18 00:49:23,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-18 00:49:23,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-18 00:49:23,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23" (1/1) ...
[2020-07-18 00:49:23,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23" (1/1) ...
[2020-07-18 00:49:23,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23" (1/1) ...
[2020-07-18 00:49:23,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23" (1/1) ...
[2020-07-18 00:49:23,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23" (1/1) ...
[2020-07-18 00:49:23,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23" (1/1) ...
[2020-07-18 00:49:23,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23" (1/1) ...
[2020-07-18 00:49:23,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-18 00:49:23,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-18 00:49:23,938 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-18 00:49:23,938 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-18 00:49:23,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23" (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
[2020-07-18 00:49:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-18 00:49:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-18 00:49:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-07-18 00:49:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-18 00:49:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-18 00:49:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-18 00:49:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-07-18 00:49:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-07-18 00:49:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-18 00:49:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-18 00:49:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-18 00:49:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-18 00:49:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-18 00:49:24,365 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-18 00:49:24,366 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-18 00:49:24,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:49:24 BoogieIcfgContainer
[2020-07-18 00:49:24,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-18 00:49:24,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-18 00:49:24,371 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-18 00:49:24,374 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-18 00:49:24,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:49:23" (1/3) ...
[2020-07-18 00:49:24,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171004d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:49:24, skipping insertion in model container
[2020-07-18 00:49:24,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:23" (2/3) ...
[2020-07-18 00:49:24,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171004d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:49:24, skipping insertion in model container
[2020-07-18 00:49:24,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:49:24" (3/3) ...
[2020-07-18 00:49:24,378 INFO L109 eAbstractionObserver]: Analyzing ICFG gcnr2008.i
[2020-07-18 00:49:24,388 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-07-18 00:49:24,395 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-18 00:49:24,408 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-18 00:49:24,428 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-18 00:49:24,429 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-18 00:49:24,429 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-07-18 00:49:24,429 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-18 00:49:24,429 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-18 00:49:24,429 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-18 00:49:24,429 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-18 00:49:24,430 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-18 00:49:24,444 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states.
[2020-07-18 00:49:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-07-18 00:49:24,454 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-18 00:49:24,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-18 00:49:24,456 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-18 00:49:24,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-18 00:49:24,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1056406919, now seen corresponding path program 1 times
[2020-07-18 00:49:24,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-18 00:49:24,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574015266]
[2020-07-18 00:49:24,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-18 00:49:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-18 00:49:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-18 00:49:24,606 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#true} assume true; {48#true} is VALID
[2020-07-18 00:49:24,607 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {48#true} {48#true} #86#return; {48#true} is VALID
[2020-07-18 00:49:24,609 INFO L263 TraceCheckUtils]: 0: Hoare triple {48#true} call ULTIMATE.init(); {48#true} is VALID
[2020-07-18 00:49:24,610 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#true} assume true; {48#true} is VALID
[2020-07-18 00:49:24,611 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {48#true} {48#true} #86#return; {48#true} is VALID
[2020-07-18 00:49:24,611 INFO L263 TraceCheckUtils]: 3: Hoare triple {48#true} call #t~ret3 := main(); {48#true} is VALID
[2020-07-18 00:49:24,612 INFO L280 TraceCheckUtils]: 4: Hoare triple {48#true} havoc ~x~0; {48#true} is VALID
[2020-07-18 00:49:24,612 INFO L280 TraceCheckUtils]: 5: Hoare triple {48#true} havoc ~y~0; {48#true} is VALID
[2020-07-18 00:49:24,612 INFO L280 TraceCheckUtils]: 6: Hoare triple {48#true} havoc ~z~0; {48#true} is VALID
[2020-07-18 00:49:24,613 INFO L280 TraceCheckUtils]: 7: Hoare triple {48#true} havoc ~w~0; {48#true} is VALID
[2020-07-18 00:49:24,613 INFO L280 TraceCheckUtils]: 8: Hoare triple {48#true} ~w~0 := 0; {48#true} is VALID
[2020-07-18 00:49:24,614 INFO L280 TraceCheckUtils]: 9: Hoare triple {48#true} ~z~0 := ~w~0; {48#true} is VALID
[2020-07-18 00:49:24,614 INFO L280 TraceCheckUtils]: 10: Hoare triple {48#true} ~y~0 := ~z~0; {48#true} is VALID
[2020-07-18 00:49:24,614 INFO L280 TraceCheckUtils]: 11: Hoare triple {48#true} ~x~0 := ~y~0; {48#true} is VALID
[2020-07-18 00:49:24,616 INFO L280 TraceCheckUtils]: 12: Hoare triple {48#true} assume !true; {49#false} is VALID
[2020-07-18 00:49:24,616 INFO L263 TraceCheckUtils]: 13: Hoare triple {49#false} call __VERIFIER_assert((if ~x~0 >= 4 && ~y~0 <= 2 then 1 else 0)); {49#false} is VALID
[2020-07-18 00:49:24,617 INFO L280 TraceCheckUtils]: 14: Hoare triple {49#false} ~cond := #in~cond; {49#false} is VALID
[2020-07-18 00:49:24,617 INFO L280 TraceCheckUtils]: 15: Hoare triple {49#false} assume 0 == ~cond; {49#false} is VALID
[2020-07-18 00:49:24,617 INFO L280 TraceCheckUtils]: 16: Hoare triple {49#false} assume !false; {49#false} is VALID
[2020-07-18 00:49:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-18 00:49:24,623 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration
[2020-07-18 00:49:24,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574015266]
[2020-07-18 00:49:24,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-18 00:49:24,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-07-18 00:49:24,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497579394]
[2020-07-18 00:49:24,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17
[2020-07-18 00:49:24,642 INFO L84 Accepts]: Finished accepts. word is accepted.
[2020-07-18 00:49:24,646 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states.
[2020-07-18 00:49:24,703 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2020-07-18 00:49:24,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-07-18 00:49:24,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-18 00:49:24,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-07-18 00:49:24,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-18 00:49:24,716 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states.
[2020-07-18 00:49:24,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-18 00:49:24,848 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions.
[2020-07-18 00:49:24,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-07-18 00:49:24,849 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17
[2020-07-18 00:49:24,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-18 00:49:24,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2020-07-18 00:49:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions.
[2020-07-18 00:49:24,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2020-07-18 00:49:24,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions.
[2020-07-18 00:49:24,881 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 64 transitions.
[2020-07-18 00:49:25,005 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2020-07-18 00:49:25,024 INFO L225 Difference]: With dead ends: 57
[2020-07-18 00:49:25,024 INFO L226 Difference]: Without dead ends: 38
[2020-07-18 00:49:25,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-18 00:49:25,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2020-07-18 00:49:25,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38.
[2020-07-18 00:49:25,082 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2020-07-18 00:49:25,083 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states.
[2020-07-18 00:49:25,083 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states.
[2020-07-18 00:49:25,084 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states.
[2020-07-18 00:49:25,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-18 00:49:25,089 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions.
[2020-07-18 00:49:25,089 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions.
[2020-07-18 00:49:25,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-18 00:49:25,090 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2020-07-18 00:49:25,090 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states.
[2020-07-18 00:49:25,091 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states.
[2020-07-18 00:49:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-18 00:49:25,095 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions.
[2020-07-18 00:49:25,096 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions.
[2020-07-18 00:49:25,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-18 00:49:25,097 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2020-07-18 00:49:25,097 INFO L88 GeneralOperation]: Finished isEquivalent.
[2020-07-18 00:49:25,097 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2020-07-18 00:49:25,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states.
[2020-07-18 00:49:25,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions.
[2020-07-18 00:49:25,103 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 17
[2020-07-18 00:49:25,103 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-18 00:49:25,103 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions.
[2020-07-18 00:49:25,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-07-18 00:49:25,104 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 38 states and 42 transitions.
[2020-07-18 00:49:25,174 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2020-07-18 00:49:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions.
[2020-07-18 00:49:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-07-18 00:49:25,176 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-18 00:49:25,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-18 00:49:25,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-07-18 00:49:25,177 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-18 00:49:25,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-18 00:49:25,178 INFO L82 PathProgramCache]: Analyzing trace with hash -588270500, now seen corresponding path program 1 times
[2020-07-18 00:49:25,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-18 00:49:25,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680430143]
[2020-07-18 00:49:25,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-18 00:49:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-18 00:49:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-18 00:49:25,272 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration
[2020-07-18 00:49:25,273 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-07-18 00:49:25,273 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-07-18 00:49:25,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-07-18 00:49:25,288 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation
[2020-07-18 00:49:25,288 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2020-07-18 00:49:25,288 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2020-07-18 00:49:25,289 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation
[2020-07-18 00:49:25,289 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation
[2020-07-18 00:49:25,289 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation
[2020-07-18 00:49:25,289 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation
[2020-07-18 00:49:25,289 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation
[2020-07-18 00:49:25,290 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation
[2020-07-18 00:49:25,290 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation
[2020-07-18 00:49:25,290 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation
[2020-07-18 00:49:25,290 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation
[2020-07-18 00:49:25,290 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation
[2020-07-18 00:49:25,290 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation
[2020-07-18 00:49:25,291 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation
[2020-07-18 00:49:25,291 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation
[2020-07-18 00:49:25,291 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation
[2020-07-18 00:49:25,291 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation
[2020-07-18 00:49:25,291 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation
[2020-07-18 00:49:25,292 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation
[2020-07-18 00:49:25,292 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation
[2020-07-18 00:49:25,292 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation
[2020-07-18 00:49:25,292 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation
[2020-07-18 00:49:25,292 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation
[2020-07-18 00:49:25,292 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation
[2020-07-18 00:49:25,293 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation
[2020-07-18 00:49:25,293 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation
[2020-07-18 00:49:25,293 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation
[2020-07-18 00:49:25,293 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation
[2020-07-18 00:49:25,293 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation
[2020-07-18 00:49:25,293 WARN L170 areAnnotationChecker]: L16-5 has no Hoare annotation
[2020-07-18 00:49:25,294 WARN L170 areAnnotationChecker]: L16-5 has no Hoare annotation
[2020-07-18 00:49:25,294 WARN L170 areAnnotationChecker]: L16-6 has no Hoare annotation
[2020-07-18 00:49:25,294 WARN L170 areAnnotationChecker]: L16-6 has no Hoare annotation
[2020-07-18 00:49:25,294 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation
[2020-07-18 00:49:25,294 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation
[2020-07-18 00:49:25,294 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation
[2020-07-18 00:49:25,294 WARN L170 areAnnotationChecker]: L16-4 has no Hoare annotation
[2020-07-18 00:49:25,295 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation
[2020-07-18 00:49:25,295 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation
[2020-07-18 00:49:25,295 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation
[2020-07-18 00:49:25,295 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation
[2020-07-18 00:49:25,295 WARN L170 areAnnotationChecker]: L17-4 has no Hoare annotation
[2020-07-18 00:49:25,295 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation
[2020-07-18 00:49:25,296 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation
[2020-07-18 00:49:25,296 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation
[2020-07-18 00:49:25,296 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation
[2020-07-18 00:49:25,296 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation
[2020-07-18 00:49:25,296 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation
[2020-07-18 00:49:25,296 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation
[2020-07-18 00:49:25,297 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation
[2020-07-18 00:49:25,297 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation
[2020-07-18 00:49:25,297 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation
[2020-07-18 00:49:25,297 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation
[2020-07-18 00:49:25,297 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation
[2020-07-18 00:49:25,297 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation
[2020-07-18 00:49:25,298 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation
[2020-07-18 00:49:25,298 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation
[2020-07-18 00:49:25,298 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation
[2020-07-18 00:49:25,298 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing.
[2020-07-18 00:49:25,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 12:49:25 BoogieIcfgContainer
[2020-07-18 00:49:25,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-18 00:49:25,305 INFO L168 Benchmark]: Toolchain (without parser) took 1740.31 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 103.1 MB in the beginning and 88.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB.
[2020-07-18 00:49:25,306 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-18 00:49:25,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.54 ms. Allocated memory is still 137.9 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
[2020-07-18 00:49:25,308 INFO L168 Benchmark]: Boogie Preprocessor took 112.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.7 MB in the beginning and 180.5 MB in the end (delta: -87.7 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB.
[2020-07-18 00:49:25,308 INFO L168 Benchmark]: RCFGBuilder took 432.08 ms. Allocated memory is still 201.3 MB. Free memory was 180.5 MB in the beginning and 157.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB.
[2020-07-18 00:49:25,309 INFO L168 Benchmark]: TraceAbstraction took 930.42 ms. Allocated memory is still 201.3 MB. Free memory was 156.7 MB in the beginning and 88.8 MB in the end (delta: 68.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 7.1 GB.
[2020-07-18 00:49:25,322 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- AssertionsEnabledResult: Assertions are enabled
Assertions are enabled
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.78 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 258.54 ms. Allocated memory is still 137.9 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 112.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.7 MB in the beginning and 180.5 MB in the end (delta: -87.7 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 432.08 ms. Allocated memory is still 201.3 MB. Free memory was 180.5 MB in the beginning and 157.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 930.42 ms. Allocated memory is still 201.3 MB. Free memory was 156.7 MB in the beginning and 88.8 MB in the end (delta: 68.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L14] int x,y,z,w;
[L15] EXPR w = 0
[L15] EXPR z = w = 0
[L15] EXPR y = z = w = 0
[L15] x = y = z = w = 0
[L16] COND FALSE !(__VERIFIER_nondet_int() && y < 10000)
[L31] CALL __VERIFIER_assert(x >= 4 && y <= 2)
[L7] COND TRUE !(cond)
[L8] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...