/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-fpi/sina2f.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-3af5e1f
[2020-09-04 17:44:20,932 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-04 17:44:20,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-04 17:44:20,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-04 17:44:20,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-04 17:44:20,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-04 17:44:20,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-04 17:44:20,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-04 17:44:20,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-04 17:44:21,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-04 17:44:21,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
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[2020-09-04 17:44:21,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-04 17:44:21,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-04 17:44:21,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-04 17:44:21,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-04 17:44:21,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-04 17:44:21,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-04 17:44:21,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-04 17:44:21,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-04 17:44:21,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-04 17:44:21,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-04 17:44:21,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-04 17:44:21,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-04 17:44:21,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-04 17:44:21,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-04 17:44:21,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-04 17:44:21,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-04 17:44:21,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2020-09-04 17:44:21,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-04 17:44:21,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-09-04 17:44:21,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-04 17:44:21,054 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-09-04 17:44:21,075 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-04 17:44:21,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-04 17:44:21,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-04 17:44:21,078 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-04 17:44:21,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-04 17:44:21,078 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-04 17:44:21,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-04 17:44:21,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-04 17:44:21,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-04 17:44:21,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-04 17:44:21,080 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-04 17:44:21,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-04 17:44:21,081 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-04 17:44:21,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-04 17:44:21,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-04 17:44:21,082 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-09-04 17:44:21,082 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-04 17:44:21,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-04 17:44:21,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-04 17:44:21,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-04 17:44:21,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-09-04 17:44:21,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-04 17:44:21,083 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
[2020-09-04 17:44:21,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-04 17:44:21,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-04 17:44:21,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-04 17:44:21,528 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-04 17:44:21,528 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-04 17:44:21,530 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina2f.c
[2020-09-04 17:44:21,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/886eef54a/82c179c55c044c9eb92422bc7f661635/FLAGfa1519bca
[2020-09-04 17:44:22,198 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-04 17:44:22,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina2f.c
[2020-09-04 17:44:22,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/886eef54a/82c179c55c044c9eb92422bc7f661635/FLAGfa1519bca
[2020-09-04 17:44:22,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/886eef54a/82c179c55c044c9eb92422bc7f661635
[2020-09-04 17:44:22,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-04 17:44:22,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-04 17:44:22,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-04 17:44:22,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-04 17:44:22,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-04 17:44:22,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:44:22" (1/1) ...
[2020-09-04 17:44:22,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c721ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22, skipping insertion in model container
[2020-09-04 17:44:22,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:44:22" (1/1) ...
[2020-09-04 17:44:22,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-04 17:44:22,599 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-04 17:44:22,839 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 17:44:22,852 INFO L203 MainTranslator]: Completed pre-run
[2020-09-04 17:44:22,879 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-04 17:44:22,899 INFO L208 MainTranslator]: Completed translation
[2020-09-04 17:44:22,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22 WrapperNode
[2020-09-04 17:44:22,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-04 17:44:22,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-04 17:44:22,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-04 17:44:22,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-04 17:44:22,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22" (1/1) ...
[2020-09-04 17:44:22,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22" (1/1) ...
[2020-09-04 17:44:23,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22" (1/1) ...
[2020-09-04 17:44:23,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22" (1/1) ...
[2020-09-04 17:44:23,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22" (1/1) ...
[2020-09-04 17:44:23,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22" (1/1) ...
[2020-09-04 17:44:23,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22" (1/1) ...
[2020-09-04 17:44:23,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-04 17:44:23,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-04 17:44:23,032 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-04 17:44:23,032 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-04 17:44:23,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-09-04 17:44:23,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-04 17:44:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-04 17:44:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-04 17:44:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-04 17:44:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-04 17:44:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-04 17:44:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-04 17:44:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-04 17:44:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-04 17:44:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-04 17:44:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-04 17:44:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-04 17:44:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-04 17:44:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-04 17:44:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-04 17:44:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-04 17:44:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-04 17:44:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-04 17:44:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-04 17:44:23,504 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-04 17:44:23,505 INFO L295 CfgBuilder]: Removed 4 assume(true) statements.
[2020-09-04 17:44:23,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:44:23 BoogieIcfgContainer
[2020-09-04 17:44:23,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-04 17:44:23,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-04 17:44:23,512 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-04 17:44:23,515 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-04 17:44:23,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:44:22" (1/3) ...
[2020-09-04 17:44:23,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb2df4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:44:23, skipping insertion in model container
[2020-09-04 17:44:23,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:44:22" (2/3) ...
[2020-09-04 17:44:23,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb2df4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:44:23, skipping insertion in model container
[2020-09-04 17:44:23,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:44:23" (3/3) ...
[2020-09-04 17:44:23,520 INFO L109 eAbstractionObserver]: Analyzing ICFG sina2f.c
[2020-09-04 17:44:23,530 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-04 17:44:23,539 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-04 17:44:23,558 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-04 17:44:23,583 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-04 17:44:23,584 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-04 17:44:23,584 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-09-04 17:44:23,584 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-04 17:44:23,584 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-04 17:44:23,584 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-04 17:44:23,584 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-04 17:44:23,585 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-04 17:44:23,604 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states.
[2020-09-04 17:44:23,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-09-04 17:44:23,618 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 17:44:23,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-04 17:44:23,620 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 17:44:23,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 17:44:23,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1325521379, now seen corresponding path program 1 times
[2020-09-04 17:44:23,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-04 17:44:23,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146397754]
[2020-09-04 17:44:23,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 17:44:23,710 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-09-04 17:44:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 17:44:23,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 17:44:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 17:44:23,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-04 17:44:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 17:44:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-04 17:44:23,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146397754]
[2020-09-04 17:44:23,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-04 17:44:23,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-04 17:44:23,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817439767]
[2020-09-04 17:44:23,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-04 17:44:23,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-04 17:44:23,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-04 17:44:23,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-04 17:44:23,979 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states.
[2020-09-04 17:44:24,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 17:44:24,180 INFO L93 Difference]: Finished difference Result 125 states and 144 transitions.
[2020-09-04 17:44:24,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-04 17:44:24,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35
[2020-09-04 17:44:24,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 17:44:24,195 INFO L225 Difference]: With dead ends: 125
[2020-09-04 17:44:24,196 INFO L226 Difference]: Without dead ends: 62
[2020-09-04 17:44:24,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-04 17:44:24,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2020-09-04 17:44:24,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2020-09-04 17:44:24,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states.
[2020-09-04 17:44:24,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions.
[2020-09-04 17:44:24,264 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 35
[2020-09-04 17:44:24,264 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-04 17:44:24,265 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions.
[2020-09-04 17:44:24,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-04 17:44:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions.
[2020-09-04 17:44:24,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-09-04 17:44:24,267 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 17:44:24,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-04 17:44:24,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-04 17:44:24,268 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 17:44:24,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 17:44:24,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1536754598, now seen corresponding path program 1 times
[2020-09-04 17:44:24,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-04 17:44:24,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181374608]
[2020-09-04 17:44:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 17:44:24,272 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-09-04 17:44:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 17:44:24,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-04 17:44:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 17:44:24,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-04 17:44:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-04 17:44:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-04 17:44:24,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181374608]
[2020-09-04 17:44:24,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-04 17:44:24,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-04 17:44:24,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420210664]
[2020-09-04 17:44:24,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-04 17:44:24,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-04 17:44:24,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-04 17:44:24,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-04 17:44:24,441 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 5 states.
[2020-09-04 17:44:24,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-04 17:44:24,757 INFO L93 Difference]: Finished difference Result 122 states and 131 transitions.
[2020-09-04 17:44:24,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-04 17:44:24,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35
[2020-09-04 17:44:24,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-04 17:44:24,762 INFO L225 Difference]: With dead ends: 122
[2020-09-04 17:44:24,762 INFO L226 Difference]: Without dead ends: 88
[2020-09-04 17:44:24,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-09-04 17:44:24,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2020-09-04 17:44:24,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 65.
[2020-09-04 17:44:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states.
[2020-09-04 17:44:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions.
[2020-09-04 17:44:24,788 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 35
[2020-09-04 17:44:24,788 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-04 17:44:24,788 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions.
[2020-09-04 17:44:24,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-04 17:44:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions.
[2020-09-04 17:44:24,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2020-09-04 17:44:24,791 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-04 17:44:24,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-04 17:44:24,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-04 17:44:24,791 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-04 17:44:24,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-04 17:44:24,792 INFO L82 PathProgramCache]: Analyzing trace with hash -313984591, now seen corresponding path program 1 times
[2020-09-04 17:44:24,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-04 17:44:24,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151661040]
[2020-09-04 17:44:24,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-04 17:44:24,822 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-09-04 17:44:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-04 17:44:24,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-09-04 17:44:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-04 17:44:24,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-09-04 17:44:24,982 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-04 17:44:24,983 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-04 17:44:24,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-04 17:44:25,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:44:25 BoogieIcfgContainer
[2020-09-04 17:44:25,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-04 17:44:25,012 INFO L168 Benchmark]: Toolchain (without parser) took 2465.88 ms. Allocated memory was 140.5 MB in the beginning and 235.9 MB in the end (delta: 95.4 MB). Free memory was 103.5 MB in the beginning and 187.5 MB in the end (delta: -84.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB.
[2020-09-04 17:44:25,013 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
[2020-09-04 17:44:25,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.53 ms. Allocated memory is still 140.5 MB. Free memory was 103.5 MB in the beginning and 93.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
[2020-09-04 17:44:25,015 INFO L168 Benchmark]: Boogie Preprocessor took 131.16 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 92.6 MB in the beginning and 181.9 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB.
[2020-09-04 17:44:25,016 INFO L168 Benchmark]: RCFGBuilder took 478.54 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 161.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB.
[2020-09-04 17:44:25,017 INFO L168 Benchmark]: TraceAbstraction took 1496.84 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 160.3 MB in the beginning and 187.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB.
[2020-09-04 17:44:25,021 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.28 ms. Allocated memory is still 140.5 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 351.53 ms. Allocated memory is still 140.5 MB. Free memory was 103.5 MB in the beginning and 93.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 131.16 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 92.6 MB in the beginning and 181.9 MB in the end (delta: -89.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 478.54 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 161.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1496.84 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 160.3 MB in the beginning and 187.5 MB in the end (delta: -27.1 MB). Peak memory consumption was 4.3 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;
[L21] N = __VERIFIER_nondet_int()
[L22] COND FALSE !(N <= 0)
[L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int))
[L11] COND FALSE !(!cond)
[L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int))
[L25] int i;
[L26] long long sum[1];
[L27] long long *a = malloc(sizeof(long long)*N);
[L29] sum[0] = 1
[L30] i=0
[L30] COND TRUE i<N
[L32] a[i] = 1
[L30] i++
[L30] COND FALSE !(i<N)
[L35] i=0
[L35] COND TRUE i<N
[L37] EXPR sum[0]
[L37] EXPR a[i]
[L37] sum[0] = sum[0] + a[i]
[L35] i++
[L35] COND FALSE !(i<N)
[L40] i=0
[L40] COND TRUE i<N
[L42] EXPR a[i]
[L42] EXPR sum[0]
[L42] a[i] = a[i] + sum[0]
[L40] i++
[L40] COND FALSE !(i<N)
[L45] i=0
[L45] COND TRUE i<N
[L47] EXPR a[i]
[L47] CALL __VERIFIER_assert(a[i] == N)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 121 SDtfs, 111 SDslu, 31 SDs, 0 SdLazy, 164 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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, 23 StatesRemovedByMinimization, 1 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...