/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/eqn3f.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-d623d84
[2020-07-20 11:45:53,235 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 11:45:53,238 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 11:45:53,256 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 11:45:53,256 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 11:45:53,257 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 11:45:53,258 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 11:45:53,260 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 11:45:53,262 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2020-07-20 11:45:53,265 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 11:45:53,266 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 11:45:53,267 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 11:45:53,269 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 11:45:53,269 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 11:45:53,270 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 11:45:53,272 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 11:45:53,274 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 11:45:53,275 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 11:45:53,277 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 11:45:53,278 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 11:45:53,279 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 11:45:53,281 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 11:45:53,282 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 11:45:53,282 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2020-07-20 11:45:53,288 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 11:45:53,288 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-07-20 11:45:53,297 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-20 11:45:53,298 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 11:45:53,299 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
[2020-07-20 11:45:53,322 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 11:45:53,322 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 11:45:53,323 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 11:45:53,324 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 11:45:53,324 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 11:45:53,324 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 11:45:53,324 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 11:45:53,325 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 11:45:53,325 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 11:45:53,325 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 11:45:53,326 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 11:45:53,326 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 11:45:53,326 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 11:45:53,327 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 11:45:53,327 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 11:45:53,327 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 11:45:53,327 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 11:45:53,327 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 11:45:53,328 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 11:45:53,328 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 11:45:53,328 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 11:45:53,328 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 11:45:53,329 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 11:45:53,329 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 11:45:53,329 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 11:45:53,329 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 11:45:53,329 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:45:53,330 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 11:45:53,330 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 11:45:53,331 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY
[2020-07-20 11:45:53,626 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 11:45:53,640 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 11:45:53,643 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 11:45:53,645 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 11:45:53,645 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 11:45:53,646 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/eqn3f.c
[2020-07-20 11:45:53,719 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75433fab/2bad3ecc45cf42bf8e3d679f494037c1/FLAG6ec520142
[2020-07-20 11:45:54,216 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 11:45:54,217 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/eqn3f.c
[2020-07-20 11:45:54,224 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75433fab/2bad3ecc45cf42bf8e3d679f494037c1/FLAG6ec520142
[2020-07-20 11:45:54,580 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75433fab/2bad3ecc45cf42bf8e3d679f494037c1
[2020-07-20 11:45:54,593 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 11:45:54,596 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 11:45:54,601 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 11:45:54,601 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 11:45:54,605 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 11:45:54,607 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:45:54" (1/1) ...
[2020-07-20 11:45:54,610 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d966692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54, skipping insertion in model container
[2020-07-20 11:45:54,611 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:45:54" (1/1) ...
[2020-07-20 11:45:54,620 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 11:45:54,645 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 11:45:54,900 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:45:54,914 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 11:45:54,947 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:45:54,963 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 11:45:54,963 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54 WrapperNode
[2020-07-20 11:45:54,963 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 11:45:54,964 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 11:45:54,964 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 11:45:54,964 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 11:45:55,054 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54" (1/1) ...
[2020-07-20 11:45:55,056 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54" (1/1) ...
[2020-07-20 11:45:55,066 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54" (1/1) ...
[2020-07-20 11:45:55,067 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54" (1/1) ...
[2020-07-20 11:45:55,084 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54" (1/1) ...
[2020-07-20 11:45:55,090 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54" (1/1) ...
[2020-07-20 11:45:55,091 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54" (1/1) ...
[2020-07-20 11:45:55,093 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 11:45:55,094 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 11:45:55,094 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 11:45:55,094 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 11:45:55,095 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54" (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
[2020-07-20 11:45:55,161 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 11:45:55,161 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 11:45:55,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-07-20 11:45:55,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-20 11:45:55,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 11:45:55,162 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 11:45:55,162 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-07-20 11:45:55,162 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-07-20 11:45:55,162 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-20 11:45:55,163 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-20 11:45:55,163 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-07-20 11:45:55,163 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 11:45:55,163 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-07-20 11:45:55,163 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-07-20 11:45:55,163 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-07-20 11:45:55,164 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 11:45:55,164 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 11:45:55,164 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-20 11:45:55,496 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 11:45:55,497 INFO  L295             CfgBuilder]: Removed 3 assume(true) statements.
[2020-07-20 11:45:55,501 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:45:55 BoogieIcfgContainer
[2020-07-20 11:45:55,501 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 11:45:55,502 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 11:45:55,502 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 11:45:55,506 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 11:45:55,506 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:45:54" (1/3) ...
[2020-07-20 11:45:55,507 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bddd7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:45:55, skipping insertion in model container
[2020-07-20 11:45:55,507 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:45:54" (2/3) ...
[2020-07-20 11:45:55,507 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bddd7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:45:55, skipping insertion in model container
[2020-07-20 11:45:55,508 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:45:55" (3/3) ...
[2020-07-20 11:45:55,509 INFO  L109   eAbstractionObserver]: Analyzing ICFG eqn3f.c
[2020-07-20 11:45:55,520 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 11:45:55,527 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-20 11:45:55,539 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-20 11:45:55,562 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 11:45:55,563 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 11:45:55,563 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 11:45:55,563 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 11:45:55,563 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 11:45:55,563 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 11:45:55,563 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 11:45:55,563 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 11:45:55,579 INFO  L276                IsEmpty]: Start isEmpty. Operand 34 states.
[2020-07-20 11:45:55,584 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-07-20 11:45:55,584 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:45:55,585 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:45:55,585 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:45:55,590 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:45:55,590 INFO  L82        PathProgramCache]: Analyzing trace with hash -1314760119, now seen corresponding path program 1 times
[2020-07-20 11:45:55,599 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:45:55,600 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031449108]
[2020-07-20 11:45:55,600 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:45:55,692 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-20 11:45:55,695 INFO  L263         TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 1 conjunts are in the unsatisfiable core
[2020-07-20 11:45:55,702 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-07-20 11:45:55,742 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-20 11:45:55,742 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-20 11:45:55,744 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031449108]
[2020-07-20 11:45:55,745 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-20 11:45:55,745 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-07-20 11:45:55,746 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189484244]
[2020-07-20 11:45:55,753 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-07-20 11:45:55,754 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-20 11:45:55,767 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-07-20 11:45:55,768 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-20 11:45:55,770 INFO  L87              Difference]: Start difference. First operand 34 states. Second operand 2 states.
[2020-07-20 11:45:55,791 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-20 11:45:55,792 INFO  L93              Difference]: Finished difference Result 58 states and 73 transitions.
[2020-07-20 11:45:55,792 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2020-07-20 11:45:55,794 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 22
[2020-07-20 11:45:55,794 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-20 11:45:55,806 INFO  L225             Difference]: With dead ends: 58
[2020-07-20 11:45:55,807 INFO  L226             Difference]: Without dead ends: 29
[2020-07-20 11:45:55,814 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-20 11:45:55,834 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2020-07-20 11:45:55,858 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2020-07-20 11:45:55,860 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 29 states.
[2020-07-20 11:45:55,863 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions.
[2020-07-20 11:45:55,864 INFO  L78                 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22
[2020-07-20 11:45:55,865 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-20 11:45:55,865 INFO  L479      AbstractCegarLoop]: Abstraction has 29 states and 31 transitions.
[2020-07-20 11:45:55,865 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-07-20 11:45:55,865 INFO  L276                IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions.
[2020-07-20 11:45:55,866 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-07-20 11:45:55,866 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-20 11:45:55,867 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-20 11:45:56,067 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:45:56,068 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-20 11:45:56,069 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-20 11:45:56,070 INFO  L82        PathProgramCache]: Analyzing trace with hash -1901566133, now seen corresponding path program 1 times
[2020-07-20 11:45:56,070 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-20 11:45:56,072 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723740052]
[2020-07-20 11:45:56,072 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:45:56,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-20 11:45:56,161 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-20 11:45:56,179 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-20 11:45:56,179 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-20 11:45:56,201 INFO  L174   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-07-20 11:45:56,202 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-07-20 11:45:56,416 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:45:56,453 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:45:56 BoogieIcfgContainer
[2020-07-20 11:45:56,454 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-20 11:45:56,457 INFO  L168              Benchmark]: Toolchain (without parser) took 1861.30 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 102.6 MB in the beginning and 123.8 MB in the end (delta: -21.2 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB.
[2020-07-20 11:45:56,458 INFO  L168              Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-20 11:45:56,459 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 362.65 ms. Allocated memory is still 137.9 MB. Free memory was 102.2 MB in the beginning and 91.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB.
[2020-07-20 11:45:56,460 INFO  L168              Benchmark]: Boogie Preprocessor took 129.50 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 91.6 MB in the beginning and 178.3 MB in the end (delta: -86.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB.
[2020-07-20 11:45:56,461 INFO  L168              Benchmark]: RCFGBuilder took 407.32 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 161.4 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB.
[2020-07-20 11:45:56,462 INFO  L168              Benchmark]: TraceAbstraction took 951.50 ms. Allocated memory is still 200.8 MB. Free memory was 160.7 MB in the beginning and 123.8 MB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB.
[2020-07-20 11:45:56,467 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 362.65 ms. Allocated memory is still 137.9 MB. Free memory was 102.2 MB in the beginning and 91.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 129.50 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 91.6 MB in the beginning and 178.3 MB in the end (delta: -86.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 407.32 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 161.4 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 951.50 ms. Allocated memory is still 200.8 MB. Free memory was 160.7 MB in the beginning and 123.8 MB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L17]              int N;
       VAL         [\old(N)=2, N=0]
[L21]              N = __VERIFIER_nondet_int()
[L22]  COND FALSE  !(N <= 0)
       VAL         [\old(N)=0, N=1]
[L23]  CALL        assume_abort_if_not(N <= 2147483647/sizeof(int))
       VAL         [\old(cond)=1, \old(N)=0, N=1]
[L11]  COND FALSE  !(!cond)
       VAL         [\old(cond)=1, \old(N)=0, cond=1, N=1]
[L23]  RET         assume_abort_if_not(N <= 2147483647/sizeof(int))
       VAL         [\old(N)=0, N=1]
[L25]              int i;
[L26]              long long *a = malloc(sizeof(long long)*N);
[L27]              long long *b = malloc(sizeof(long long)*N);
[L29]              a[0] = 6
[L30]              b[0] = 10
[L32]              i=1
       VAL         [\old(N)=0, a={-1:0}, b={-2:0}, i=1, malloc(sizeof(long long)*N)={-1:0}, malloc(sizeof(long long)*N)={-2:0}, N=1]
[L32]  COND FALSE  !(i<N)
       VAL         [\old(N)=0, a={-1:0}, b={-2:0}, i=1, malloc(sizeof(long long)*N)={-1:0}, malloc(sizeof(long long)*N)={-2:0}, N=1]
[L37]              i=1
       VAL         [\old(N)=0, a={-1:0}, b={-2:0}, i=1, malloc(sizeof(long long)*N)={-1:0}, malloc(sizeof(long long)*N)={-2:0}, N=1]
[L37]  COND FALSE  !(i<N)
       VAL         [\old(N)=0, a={-1:0}, b={-2:0}, i=1, malloc(sizeof(long long)*N)={-1:0}, malloc(sizeof(long long)*N)={-2:0}, N=1]
[L42]              i=0
       VAL         [\old(N)=0, a={-1:0}, b={-2:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, malloc(sizeof(long long)*N)={-2:0}, N=1]
[L42]  COND TRUE   i<N
[L44]  EXPR        b[i]
       VAL         [\old(N)=0, a={-1:0}, b={-2:0}, b[i]=10, i=0, malloc(sizeof(long long)*N)={-1:0}, malloc(sizeof(long long)*N)={-2:0}, N=1]
[L44]  CALL        __VERIFIER_assert(b[i] == 3*i*i + 3*i + 1)
       VAL         [\old(cond)=0, \old(N)=0, N=1]
[L13]  COND TRUE   !(cond)
       VAL         [\old(cond)=0, \old(N)=0, cond=0, N=1]
[L13]              __VERIFIER_error()
       VAL         [\old(cond)=0, \old(N)=0, cond=0, N=1]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 SizeOfPredicates, 0 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...