/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test01.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-7d8eed3
[2020-11-07 00:52:14,830 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-11-07 00:52:14,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-07 00:52:14,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-07 00:52:14,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-07 00:52:14,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-07 00:52:14,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-11-07 00:52:14,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
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[2020-11-07 00:52:14,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-07 00:52:14,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-07 00:52:14,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-07 00:52:14,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-07 00:52:14,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-07 00:52:14,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-07 00:52:14,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2020-11-07 00:52:14,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2020-11-07 00:52:14,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-11-07 00:52:14,952 INFO L113 SettingsManager]: Loading preferences was successful
[2020-11-07 00:52:14,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-07 00:52:14,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-07 00:52:14,956 INFO L138 SettingsManager]: * sizeof long=4
[2020-11-07 00:52:14,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-11-07 00:52:14,956 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-11-07 00:52:14,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-11-07 00:52:14,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-11-07 00:52:14,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-07 00:52:14,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-11-07 00:52:14,958 INFO L138 SettingsManager]: * sizeof long double=12
[2020-11-07 00:52:14,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-11-07 00:52:14,959 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-11-07 00:52:14,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-11-07 00:52:14,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-07 00:52:14,959 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-11-07 00:52:14,960 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-11-07 00:52:14,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-11-07 00:52:14,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-11-07 00:52:14,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-07 00:52:14,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-11-07 00:52:14,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-07 00:52:14,962 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-11-07 00:52:15,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-07 00:52:15,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-07 00:52:15,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-07 00:52:15,394 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-11-07 00:52:15,395 INFO L275 PluginConnector]: CDTParser initialized
[2020-11-07 00:52:15,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test01.c
[2020-11-07 00:52:15,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/587710519/245081b7504648a9bbc02dea11158ac7/FLAG6b333cf98
[2020-11-07 00:52:16,147 INFO L306 CDTParser]: Found 1 translation units.
[2020-11-07 00:52:16,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test01.c
[2020-11-07 00:52:16,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/587710519/245081b7504648a9bbc02dea11158ac7/FLAG6b333cf98
[2020-11-07 00:52:16,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/587710519/245081b7504648a9bbc02dea11158ac7
[2020-11-07 00:52:16,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-07 00:52:16,185 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-11-07 00:52:16,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-07 00:52:16,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-07 00:52:16,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-07 00:52:16,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:16" (1/1) ...
[2020-11-07 00:52:16,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb3e2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16, skipping insertion in model container
[2020-11-07 00:52:16,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:52:16" (1/1) ...
[2020-11-07 00:52:16,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-11-07 00:52:16,218 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-11-07 00:52:16,380 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-07 00:52:16,392 INFO L203 MainTranslator]: Completed pre-run
[2020-11-07 00:52:16,407 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-07 00:52:16,423 INFO L208 MainTranslator]: Completed translation
[2020-11-07 00:52:16,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16 WrapperNode
[2020-11-07 00:52:16,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-07 00:52:16,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-07 00:52:16,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-07 00:52:16,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-11-07 00:52:16,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16" (1/1) ...
[2020-11-07 00:52:16,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16" (1/1) ...
[2020-11-07 00:52:16,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16" (1/1) ...
[2020-11-07 00:52:16,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16" (1/1) ...
[2020-11-07 00:52:16,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16" (1/1) ...
[2020-11-07 00:52:16,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16" (1/1) ...
[2020-11-07 00:52:16,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16" (1/1) ...
[2020-11-07 00:52:16,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-07 00:52:16,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-07 00:52:16,459 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-11-07 00:52:16,459 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-11-07 00:52:16,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16" (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
[2020-11-07 00:52:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-11-07 00:52:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-07 00:52:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2020-11-07 00:52:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-11-07 00:52:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-11-07 00:52:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-11-07 00:52:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2020-11-07 00:52:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-11-07 00:52:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-11-07 00:52:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-11-07 00:52:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-11-07 00:52:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-11-07 00:52:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-07 00:52:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-11-07 00:52:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-11-07 00:52:17,014 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-07 00:52:17,014 INFO L298 CfgBuilder]: Removed 0 assume(true) statements.
[2020-11-07 00:52:17,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:17 BoogieIcfgContainer
[2020-11-07 00:52:17,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-07 00:52:17,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-11-07 00:52:17,023 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-11-07 00:52:17,027 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-11-07 00:52:17,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:52:16" (1/3) ...
[2020-11-07 00:52:17,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eed123f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:17, skipping insertion in model container
[2020-11-07 00:52:17,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:52:16" (2/3) ...
[2020-11-07 00:52:17,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eed123f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:52:17, skipping insertion in model container
[2020-11-07 00:52:17,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:52:17" (3/3) ...
[2020-11-07 00:52:17,034 INFO L111 eAbstractionObserver]: Analyzing ICFG test01.c
[2020-11-07 00:52:17,053 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-11-07 00:52:17,058 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-11-07 00:52:17,072 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-11-07 00:52:17,123 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-11-07 00:52:17,123 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-11-07 00:52:17,123 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-11-07 00:52:17,123 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-11-07 00:52:17,124 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-11-07 00:52:17,124 INFO L382 AbstractCegarLoop]: Difference is false
[2020-11-07 00:52:17,124 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-11-07 00:52:17,124 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-11-07 00:52:17,144 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states.
[2020-11-07 00:52:17,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2020-11-07 00:52:17,158 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-07 00:52:17,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 00:52:17,160 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 00:52:17,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 00:52:17,171 INFO L82 PathProgramCache]: Analyzing trace with hash -162222842, now seen corresponding path program 1 times
[2020-11-07 00:52:17,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 00:52:17,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299751752]
[2020-11-07 00:52:17,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 00:52:17,277 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 00:52:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:52:17,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 00:52:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 00:52:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 00:52:17,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299751752]
[2020-11-07 00:52:17,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 00:52:17,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-11-07 00:52:17,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330429145]
[2020-11-07 00:52:17,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-11-07 00:52:17,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 00:52:17,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-11-07 00:52:17,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-11-07 00:52:17,666 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 7 states.
[2020-11-07 00:52:17,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 00:52:17,847 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions.
[2020-11-07 00:52:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-11-07 00:52:17,851 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19
[2020-11-07 00:52:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 00:52:17,864 INFO L225 Difference]: With dead ends: 41
[2020-11-07 00:52:17,865 INFO L226 Difference]: Without dead ends: 0
[2020-11-07 00:52:17,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132
[2020-11-07 00:52:17,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-11-07 00:52:17,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-11-07 00:52:17,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-11-07 00:52:17,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-11-07 00:52:17,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19
[2020-11-07 00:52:17,896 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-07 00:52:17,896 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-11-07 00:52:17,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-11-07 00:52:17,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-11-07 00:52:17,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-11-07 00:52:17,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-11-07 00:52:17,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-11-07 00:52:18,209 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,210 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,210 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,210 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,211 INFO L269 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,211 INFO L269 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,211 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-11-07 00:52:18,211 INFO L269 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,211 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true
[2020-11-07 00:52:18,212 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,212 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-11-07 00:52:18,212 INFO L269 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,212 INFO L269 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true
[2020-11-07 00:52:18,213 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2020-11-07 00:52:18,213 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true
[2020-11-07 00:52:18,213 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-11-07 00:52:18,213 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-11-07 00:52:18,213 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true
[2020-11-07 00:52:18,214 INFO L262 CegarLoopResult]: At program point L7-6(line 7) the Hoare annotation is: false
[2020-11-07 00:52:18,214 INFO L262 CegarLoopResult]: At program point L7-7(line 7) the Hoare annotation is: false
[2020-11-07 00:52:18,214 INFO L262 CegarLoopResult]: At program point L7-8(line 7) the Hoare annotation is: false
[2020-11-07 00:52:18,214 INFO L262 CegarLoopResult]: At program point L7-9(line 7) the Hoare annotation is: false
[2020-11-07 00:52:18,214 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 6 19) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))
[2020-11-07 00:52:18,215 INFO L262 CegarLoopResult]: At program point mainEXIT(lines 6 19) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base))
[2020-11-07 00:52:18,215 INFO L262 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: false
[2020-11-07 00:52:18,215 INFO L262 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: false
[2020-11-07 00:52:18,215 INFO L262 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-11-07 00:52:18,215 INFO L262 CegarLoopResult]: At program point mainFINAL(lines 6 19) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base))
[2020-11-07 00:52:18,216 INFO L262 CegarLoopResult]: At program point L12(lines 6 19) the Hoare annotation is: false
[2020-11-07 00:52:18,216 INFO L262 CegarLoopResult]: At program point L11(lines 11 13) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-11-07 00:52:18,216 INFO L262 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-11-07 00:52:18,217 INFO L262 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (= (select |#valid| |main_~#a~0.base|) 1)
[2020-11-07 00:52:18,217 INFO L262 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-11-07 00:52:18,217 INFO L262 CegarLoopResult]: At program point L7-2(line 7) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1))
[2020-11-07 00:52:18,218 INFO L262 CegarLoopResult]: At program point L7-3(line 7) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)))
[2020-11-07 00:52:18,218 INFO L262 CegarLoopResult]: At program point L7-4(line 7) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)))
[2020-11-07 00:52:18,218 INFO L262 CegarLoopResult]: At program point L7-5(line 7) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)))
[2020-11-07 00:52:18,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:52:18 BoogieIcfgContainer
[2020-11-07 00:52:18,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-11-07 00:52:18,240 INFO L168 Benchmark]: Toolchain (without parser) took 2058.73 ms. Allocated memory is still 161.5 MB. Free memory was 138.1 MB in the beginning and 82.5 MB in the end (delta: 55.6 MB). Peak memory consumption was 57.1 MB. Max. memory is 8.0 GB.
[2020-11-07 00:52:18,241 INFO L168 Benchmark]: CDTParser took 1.15 ms. Allocated memory is still 161.5 MB. Free memory is still 134.5 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-11-07 00:52:18,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.56 ms. Allocated memory is still 161.5 MB. Free memory was 137.3 MB in the beginning and 128.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
[2020-11-07 00:52:18,243 INFO L168 Benchmark]: Boogie Preprocessor took 30.51 ms. Allocated memory is still 161.5 MB. Free memory was 128.5 MB in the beginning and 127.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
[2020-11-07 00:52:18,244 INFO L168 Benchmark]: RCFGBuilder took 559.13 ms. Allocated memory is still 161.5 MB. Free memory was 127.0 MB in the beginning and 113.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB.
[2020-11-07 00:52:18,245 INFO L168 Benchmark]: TraceAbstraction took 1215.17 ms. Allocated memory is still 161.5 MB. Free memory was 112.7 MB in the beginning and 82.5 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB.
[2020-11-07 00:52:18,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.15 ms. Allocated memory is still 161.5 MB. Free memory is still 134.5 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 237.56 ms. Allocated memory is still 161.5 MB. Free memory was 137.3 MB in the beginning and 128.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 30.51 ms. Allocated memory is still 161.5 MB. Free memory was 128.5 MB in the beginning and 127.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 559.13 ms. Allocated memory is still 161.5 MB. Free memory was 127.0 MB in the beginning and 113.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 1215.17 ms. Allocated memory is still 161.5 MB. Free memory was 112.7 MB in the beginning and 82.5 MB in the end (delta: 30.2 MB). Peak memory consumption was 30.9 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 6]: Loop Invariant
Derived loop invariant: 0
- ProcedureContractResult [Line: 3]: Procedure Contract for reach_error
Derived contract for procedure reach_error: 1
- ProcedureContractResult [Line: 6]: Procedure Contract for main
Derived contract for procedure main: !(p1 == p2)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 19 SDslu, 61 SDs, 0 SdLazy, 42 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 37 PreInvPairs, 41 NumberOfFragments, 184 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, 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 correct!
Received shutdown request...