/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/test13.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-b8ad66e
[2020-10-23 20:34:56,536 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-23 20:34:56,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-23 20:34:56,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-23 20:34:56,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-23 20:34:56,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-23 20:34:56,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-10-23 20:34:56,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-23 20:34:56,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-23 20:34:56,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-23 20:34:56,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-23 20:34:56,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-23 20:34:56,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-23 20:34:56,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-23 20:34:56,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-23 20:34:56,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-10-23 20:34:56,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-23 20:34:56,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-10-23 20:34:56,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-10-23 20:34:56,703 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-23 20:34:56,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-23 20:34:56,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-23 20:34:56,707 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-23 20:34:56,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-23 20:34:56,707 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-23 20:34:56,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-23 20:34:56,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-23 20:34:56,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-23 20:34:56,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-23 20:34:56,709 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-23 20:34:56,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-23 20:34:56,709 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-23 20:34:56,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-23 20:34:56,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-23 20:34:56,710 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-10-23 20:34:56,710 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-23 20:34:56,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-23 20:34:56,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-23 20:34:56,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-23 20:34:56,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-10-23 20:34:56,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-23 20:34:56,711 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-10-23 20:34:57,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-23 20:34:57,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-23 20:34:57,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-23 20:34:57,149 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-23 20:34:57,150 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-23 20:34:57,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test13.c
[2020-10-23 20:34:57,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12731d177/45a8289c016444edb11bcee0a172d61c/FLAG83cea8f72
[2020-10-23 20:34:57,818 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-23 20:34:57,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test13.c
[2020-10-23 20:34:57,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12731d177/45a8289c016444edb11bcee0a172d61c/FLAG83cea8f72
[2020-10-23 20:34:58,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12731d177/45a8289c016444edb11bcee0a172d61c
[2020-10-23 20:34:58,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-23 20:34:58,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-23 20:34:58,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-23 20:34:58,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-23 20:34:58,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-23 20:34:58,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:58" (1/1) ...
[2020-10-23 20:34:58,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f56a40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58, skipping insertion in model container
[2020-10-23 20:34:58,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:58" (1/1) ...
[2020-10-23 20:34:58,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-23 20:34:58,257 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-23 20:34:58,405 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-23 20:34:58,418 INFO L203 MainTranslator]: Completed pre-run
[2020-10-23 20:34:58,434 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-23 20:34:58,451 INFO L208 MainTranslator]: Completed translation
[2020-10-23 20:34:58,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58 WrapperNode
[2020-10-23 20:34:58,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-23 20:34:58,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-23 20:34:58,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-23 20:34:58,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-23 20:34:58,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ...
[2020-10-23 20:34:58,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ...
[2020-10-23 20:34:58,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ...
[2020-10-23 20:34:58,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ...
[2020-10-23 20:34:58,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ...
[2020-10-23 20:34:58,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ...
[2020-10-23 20:34:58,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (1/1) ...
[2020-10-23 20:34:58,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-23 20:34:58,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-23 20:34:58,490 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-23 20:34:58,490 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-23 20:34:58,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (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
[2020-10-23 20:34:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-23 20:34:58,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-23 20:34:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-23 20:34:58,621 INFO L138 BoogieDeclarations]: Found implementation of procedure check
[2020-10-23 20:34:58,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-10-23 20:34:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-10-23 20:34:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-23 20:34:58,622 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-23 20:34:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-23 20:34:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure check
[2020-10-23 20:34:58,623 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-10-23 20:34:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-23 20:34:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-23 20:34:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-23 20:34:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-23 20:34:58,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-10-23 20:34:58,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-23 20:34:58,906 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-23 20:34:58,906 INFO L298 CfgBuilder]: Removed 0 assume(true) statements.
[2020-10-23 20:34:58,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:58 BoogieIcfgContainer
[2020-10-23 20:34:58,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-23 20:34:58,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-23 20:34:58,911 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-23 20:34:58,915 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-23 20:34:58,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:34:58" (1/3) ...
[2020-10-23 20:34:58,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40844e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:58, skipping insertion in model container
[2020-10-23 20:34:58,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:58" (2/3) ...
[2020-10-23 20:34:58,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40844e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:58, skipping insertion in model container
[2020-10-23 20:34:58,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:58" (3/3) ...
[2020-10-23 20:34:58,919 INFO L111 eAbstractionObserver]: Analyzing ICFG test13.c
[2020-10-23 20:34:58,934 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-23 20:34:58,940 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-23 20:34:58,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-23 20:34:58,998 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-23 20:34:58,999 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-23 20:34:58,999 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-10-23 20:34:58,999 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-23 20:34:58,999 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-23 20:34:59,000 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-23 20:34:59,000 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-23 20:34:59,001 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-23 20:34:59,022 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states.
[2020-10-23 20:34:59,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2020-10-23 20:34:59,049 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-23 20:34:59,051 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]
[2020-10-23 20:34:59,051 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-23 20:34:59,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-23 20:34:59,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1009389193, now seen corresponding path program 1 times
[2020-10-23 20:34:59,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-23 20:34:59,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973967705]
[2020-10-23 20:34:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-23 20:34:59,217 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-10-23 20:34:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-23 20:34:59,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-23 20:34:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-23 20:34:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-23 20:34:59,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973967705]
[2020-10-23 20:34:59,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-23 20:34:59,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-10-23 20:34:59,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245615507]
[2020-10-23 20:34:59,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-23 20:34:59,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-23 20:34:59,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-23 20:34:59,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-10-23 20:34:59,827 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 7 states.
[2020-10-23 20:35:00,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-23 20:35:00,358 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions.
[2020-10-23 20:35:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-10-23 20:35:00,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24
[2020-10-23 20:35:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-23 20:35:00,367 INFO L225 Difference]: With dead ends: 42
[2020-10-23 20:35:00,368 INFO L226 Difference]: Without dead ends: 0
[2020-10-23 20:35:00,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2020-10-23 20:35:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-23 20:35:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-23 20:35:00,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-23 20:35:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-23 20:35:00,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24
[2020-10-23 20:35:00,400 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-23 20:35:00,400 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-23 20:35:00,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-23 20:35:00,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-23 20:35:00,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-23 20:35:00,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-23 20:35:00,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-10-23 20:35:01,050 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,050 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,050 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,051 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,051 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,051 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,051 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-10-23 20:35:01,051 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,051 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true
[2020-10-23 20:35:01,052 INFO L277 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,052 INFO L270 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|))
[2020-10-23 20:35:01,052 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|))
[2020-10-23 20:35:01,052 INFO L277 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true
[2020-10-23 20:35:01,052 INFO L277 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true
[2020-10-23 20:35:01,053 INFO L277 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: true
[2020-10-23 20:35:01,053 INFO L277 CegarLoopResult]: At program point L16-3(line 16) the Hoare annotation is: true
[2020-10-23 20:35:01,053 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~pa~0.base |old(~pa~0.base)|) (= ~pa~0.offset |old(~pa~0.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~pb~0.base |old(~pb~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~pb~0.offset |old(~pb~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))
[2020-10-23 20:35:01,053 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,053 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true
[2020-10-23 20:35:01,054 INFO L270 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|))
[2020-10-23 20:35:01,054 INFO L270 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|))
[2020-10-23 20:35:01,054 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|))
[2020-10-23 20:35:01,054 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-10-23 20:35:01,054 INFO L270 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (and (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|))
[2020-10-23 20:35:01,055 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 19 22) the Hoare annotation is: true
[2020-10-23 20:35:01,055 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 19 22) the Hoare annotation is: true
[2020-10-23 20:35:01,055 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 19 22) the Hoare annotation is: true
[2020-10-23 20:35:01,055 INFO L277 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true
[2020-10-23 20:35:01,055 INFO L277 CegarLoopResult]: At program point checkENTRY(lines 6 14) the Hoare annotation is: true
[2020-10-23 20:35:01,056 INFO L270 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (or (not (= |~#a~0.offset| ~pa~0.offset)) (not (= |~#a~0.base| ~pa~0.base)) (not (= |check_#in~b.offset| |check_#in~a.offset|)) (not (= |check_#in~a.base| |check_#in~b.base|)))
[2020-10-23 20:35:01,056 INFO L270 CegarLoopResult]: At program point L8(lines 6 14) the Hoare annotation is: (or (not (= |~#a~0.offset| ~pa~0.offset)) (not (= |~#a~0.base| ~pa~0.base)) (not (= |check_#in~b.offset| |check_#in~a.offset|)) (not (= |check_#in~a.base| |check_#in~b.base|)))
[2020-10-23 20:35:01,056 INFO L270 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (not (= ~pa~0.base |~#a~0.base|)) (and (= check_~a.base check_~b.base) (= check_~a.base |check_#in~b.base|) (= |check_#in~b.offset| check_~a.offset) (= check_~a.offset check_~b.offset)) (not (= |check_#in~b.offset| |check_#in~a.offset|)) (not (= ~pa~0.offset |~#a~0.offset|)) (not (= |check_#in~a.base| |check_#in~b.base|)))
[2020-10-23 20:35:01,056 INFO L270 CegarLoopResult]: At program point checkFINAL(lines 6 14) the Hoare annotation is: (or (not (= ~pa~0.base |~#a~0.base|)) (and (= check_~a.base check_~b.base) (= check_~a.base |check_#in~b.base|) (= |check_#in~b.offset| check_~a.offset) (= check_~a.offset check_~b.offset)) (not (= |check_#in~b.offset| |check_#in~a.offset|)) (not (= ~pa~0.offset |~#a~0.offset|)) (not (= |check_#in~a.base| |check_#in~b.base|)))
[2020-10-23 20:35:01,057 INFO L270 CegarLoopResult]: At program point L6(lines 6 14) the Hoare annotation is: (or (and (= check_~a.base |check_#in~b.base|) (= |check_#in~b.offset| check_~a.offset)) (not (= ~pa~0.base |~#a~0.base|)) (not (= |check_#in~b.offset| |check_#in~a.offset|)) (not (= ~pa~0.offset |~#a~0.offset|)) (not (= |check_#in~a.base| |check_#in~b.base|)))
[2020-10-23 20:35:01,057 INFO L270 CegarLoopResult]: At program point checkEXIT(lines 6 14) the Hoare annotation is: (or (not (= ~pa~0.base |~#a~0.base|)) (and (= check_~a.base check_~b.base) (= check_~a.base |check_#in~b.base|) (= |check_#in~b.offset| check_~a.offset) (= check_~a.offset check_~b.offset)) (not (= |check_#in~b.offset| |check_#in~a.offset|)) (not (= ~pa~0.offset |~#a~0.offset|)) (not (= |check_#in~a.base| |check_#in~b.base|)))
[2020-10-23 20:35:01,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:35:01 BoogieIcfgContainer
[2020-10-23 20:35:01,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-23 20:35:01,083 INFO L168 Benchmark]: Toolchain (without parser) took 2881.66 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 120.6 MB in the beginning and 140.8 MB in the end (delta: -20.2 MB). Peak memory consumption was 88.3 MB. Max. memory is 8.0 GB.
[2020-10-23 20:35:01,084 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 163.6 MB. Free memory is still 136.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-23 20:35:01,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.30 ms. Allocated memory is still 163.6 MB. Free memory was 120.0 MB in the beginning and 139.2 MB in the end (delta: -19.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB.
[2020-10-23 20:35:01,087 INFO L168 Benchmark]: Boogie Preprocessor took 35.21 ms. Allocated memory is still 163.6 MB. Free memory was 139.2 MB in the beginning and 137.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2020-10-23 20:35:01,088 INFO L168 Benchmark]: RCFGBuilder took 419.19 ms. Allocated memory is still 163.6 MB. Free memory was 137.7 MB in the beginning and 133.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.0 MB. Max. memory is 8.0 GB.
[2020-10-23 20:35:01,089 INFO L168 Benchmark]: TraceAbstraction took 2169.20 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 133.1 MB in the beginning and 140.8 MB in the end (delta: -7.6 MB). Peak memory consumption was 101.1 MB. Max. memory is 8.0 GB.
[2020-10-23 20:35:01,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21 ms. Allocated memory is still 163.6 MB. Free memory is still 136.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 245.30 ms. Allocated memory is still 163.6 MB. Free memory was 120.0 MB in the beginning and 139.2 MB in the end (delta: -19.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 35.21 ms. Allocated memory is still 163.6 MB. Free memory was 139.2 MB in the beginning and 137.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 419.19 ms. Allocated memory is still 163.6 MB. Free memory was 137.7 MB in the beginning and 133.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.0 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 2169.20 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 133.1 MB in the beginning and 140.8 MB in the end (delta: -7.6 MB). Peak memory consumption was 101.1 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: ((!(a == pa) || !(a == pa)) || !(b == a)) || !(a == b)
- ProcedureContractResult [Line: 3]: Procedure Contract for reach_error
Derived contract for procedure reach_error: 1
- ProcedureContractResult [Line: 19]: Procedure Contract for main
Derived contract for procedure main: 1
- ProcedureContractResult [Line: 6]: Procedure Contract for check
Derived contract for procedure check: (((!(pa == a) || (((a == b && a == b) && b == a) && a == b)) || !(b == a)) || !(pa == a)) || !(a == b)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 22 SDslu, 72 SDs, 0 SdLazy, 36 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 35 LocationsWithAnnotation, 35 PreInvPairs, 42 NumberOfFragments, 267 HoareAnnotationTreeSize, 35 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 35 FomulaSimplificationsInter, 623 FormulaSimplificationTreeSizeReductionInter, 0.4s 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...