/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-dev-b7b32d2
[2021-02-22 02:21:25,993 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-02-22 02:21:25,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-02-22 02:21:26,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-02-22 02:21:26,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-02-22 02:21:26,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-02-22 02:21:26,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-02-22 02:21:26,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
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[2021-02-22 02:21:26,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-02-22 02:21:26,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-02-22 02:21:26,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-02-22 02:21:26,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-02-22 02:21:26,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-02-22 02:21:26,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-02-22 02:21:26,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-02-22 02:21:26,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-02-22 02:21:26,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-02-22 02:21:26,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-02-22 02:21:26,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-02-22 02:21:26,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-02-22 02:21:26,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-02-22 02:21:26,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-02-22 02:21:26,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-02-22 02:21:26,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2021-02-22 02:21:26,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-02-22 02:21:26,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf
[2021-02-22 02:21:26,199 INFO L113 SettingsManager]: Loading preferences was successful
[2021-02-22 02:21:26,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-02-22 02:21:26,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-02-22 02:21:26,204 INFO L138 SettingsManager]: * sizeof long=4
[2021-02-22 02:21:26,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-02-22 02:21:26,205 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-02-22 02:21:26,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-02-22 02:21:26,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-02-22 02:21:26,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-02-22 02:21:26,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-02-22 02:21:26,207 INFO L138 SettingsManager]: * sizeof long double=12
[2021-02-22 02:21:26,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-02-22 02:21:26,208 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-02-22 02:21:26,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-02-22 02:21:26,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-02-22 02:21:26,209 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2021-02-22 02:21:26,209 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-02-22 02:21:26,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-02-22 02:21:26,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-02-22 02:21:26,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-02-22 02:21:26,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2021-02-22 02:21:26,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-02-22 02:21:26,211 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX
[2021-02-22 02:21:26,211 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-02-22 02:21:26,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-02-22 02:21:26,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-02-22 02:21:26,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-02-22 02:21:26,660 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-02-22 02:21:26,661 INFO L275 PluginConnector]: CDTParser initialized
[2021-02-22 02:21:26,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i
[2021-02-22 02:21:26,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528786bac/c9f5bc887d4a4b70a811c482d8794896/FLAGf4b346423
[2021-02-22 02:21:27,400 INFO L306 CDTParser]: Found 1 translation units.
[2021-02-22 02:21:27,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i
[2021-02-22 02:21:27,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528786bac/c9f5bc887d4a4b70a811c482d8794896/FLAGf4b346423
[2021-02-22 02:21:27,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528786bac/c9f5bc887d4a4b70a811c482d8794896
[2021-02-22 02:21:27,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-02-22 02:21:27,722 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-02-22 02:21:27,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-02-22 02:21:27,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-02-22 02:21:27,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-02-22 02:21:27,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:21:27" (1/1) ...
[2021-02-22 02:21:27,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b9896c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27, skipping insertion in model container
[2021-02-22 02:21:27,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:21:27" (1/1) ...
[2021-02-22 02:21:27,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-02-22 02:21:27,757 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-02-22 02:21:27,910 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i[825,838]
[2021-02-22 02:21:27,938 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-22 02:21:27,948 INFO L203 MainTranslator]: Completed pre-run
[2021-02-22 02:21:27,963 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_NetBSD-libc_loop.i[825,838]
[2021-02-22 02:21:27,969 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-22 02:21:27,986 INFO L208 MainTranslator]: Completed translation
[2021-02-22 02:21:27,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27 WrapperNode
[2021-02-22 02:21:27,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-02-22 02:21:27,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-02-22 02:21:27,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-02-22 02:21:27,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-02-22 02:21:27,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27" (1/1) ...
[2021-02-22 02:21:28,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27" (1/1) ...
[2021-02-22 02:21:28,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27" (1/1) ...
[2021-02-22 02:21:28,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27" (1/1) ...
[2021-02-22 02:21:28,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27" (1/1) ...
[2021-02-22 02:21:28,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27" (1/1) ...
[2021-02-22 02:21:28,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27" (1/1) ...
[2021-02-22 02:21:28,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-02-22 02:21:28,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-02-22 02:21:28,026 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-02-22 02:21:28,026 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-02-22 02:21:28,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27" (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
[2021-02-22 02:21:28,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-02-22 02:21:28,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-02-22 02:21:28,134 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-02-22 02:21:28,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-02-22 02:21:28,134 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2
[2021-02-22 02:21:28,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-02-22 02:21:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-02-22 02:21:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-02-22 02:21:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2021-02-22 02:21:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2021-02-22 02:21:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-02-22 02:21:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-02-22 02:21:28,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-02-22 02:21:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure glob2
[2021-02-22 02:21:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-02-22 02:21:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-02-22 02:21:28,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-02-22 02:21:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-02-22 02:21:28,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-02-22 02:21:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-02-22 02:21:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-02-22 02:21:28,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-02-22 02:21:28,661 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-02-22 02:21:28,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:21:28 BoogieIcfgContainer
[2021-02-22 02:21:28,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-02-22 02:21:28,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-02-22 02:21:28,665 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-02-22 02:21:28,669 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-02-22 02:21:28,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:21:27" (1/3) ...
[2021-02-22 02:21:28,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39179306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:21:28, skipping insertion in model container
[2021-02-22 02:21:28,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:21:27" (2/3) ...
[2021-02-22 02:21:28,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39179306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:21:28, skipping insertion in model container
[2021-02-22 02:21:28,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:21:28" (3/3) ...
[2021-02-22 02:21:28,673 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i
[2021-02-22 02:21:28,681 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2021-02-22 02:21:28,686 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-02-22 02:21:28,710 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-02-22 02:21:28,738 INFO L376 AbstractCegarLoop]: Interprodecural is true
[2021-02-22 02:21:28,738 INFO L377 AbstractCegarLoop]: Hoare is true
[2021-02-22 02:21:28,738 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2021-02-22 02:21:28,738 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-02-22 02:21:28,738 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-02-22 02:21:28,739 INFO L381 AbstractCegarLoop]: Difference is false
[2021-02-22 02:21:28,739 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-02-22 02:21:28,739 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-02-22 02:21:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states.
[2021-02-22 02:21:28,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2021-02-22 02:21:28,764 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-22 02:21:28,765 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]
[2021-02-22 02:21:28,766 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-22 02:21:28,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-22 02:21:28,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1838508197, now seen corresponding path program 1 times
[2021-02-22 02:21:28,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-02-22 02:21:28,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985886650]
[2021-02-22 02:21:28,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-22 02:21:28,868 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2021-02-22 02:21:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-22 02:21:29,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-22 02:21:29,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-02-22 02:21:29,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12
[2021-02-22 02:21:29,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-02-22 02:21:29,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-02-22 02:21:29,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-02-22 02:21:29,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-02-22 02:21:29,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-02-22 02:21:29,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-22 02:21:29,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-02-22 02:21:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-22 02:21:29,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:29,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-02-22 02:21:29,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-02-22 02:21:29,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985886650]
[2021-02-22 02:21:29,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-02-22 02:21:29,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2021-02-22 02:21:29,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050599463]
[2021-02-22 02:21:29,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states
[2021-02-22 02:21:29,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2021-02-22 02:21:29,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-02-22 02:21:29,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90
[2021-02-22 02:21:29,529 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 10 states.
[2021-02-22 02:21:30,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-02-22 02:21:30,143 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions.
[2021-02-22 02:21:30,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-02-22 02:21:30,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25
[2021-02-22 02:21:30,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-02-22 02:21:30,154 INFO L225 Difference]: With dead ends: 81
[2021-02-22 02:21:30,154 INFO L226 Difference]: Without dead ends: 41
[2021-02-22 02:21:30,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240
[2021-02-22 02:21:30,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2021-02-22 02:21:30,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38.
[2021-02-22 02:21:30,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states.
[2021-02-22 02:21:30,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions.
[2021-02-22 02:21:30,209 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 25
[2021-02-22 02:21:30,209 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-02-22 02:21:30,210 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions.
[2021-02-22 02:21:30,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2021-02-22 02:21:30,210 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions.
[2021-02-22 02:21:30,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2021-02-22 02:21:30,211 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-22 02:21:30,212 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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]
[2021-02-22 02:21:30,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-02-22 02:21:30,212 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-22 02:21:30,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-22 02:21:30,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1450458719, now seen corresponding path program 1 times
[2021-02-22 02:21:30,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-02-22 02:21:30,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108087465]
[2021-02-22 02:21:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-22 02:21:30,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:30,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33
[2021-02-22 02:21:30,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:30,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33
[2021-02-22 02:21:30,284 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size
[2021-02-22 02:21:30,301 INFO L723 QuantifierPusher]: Distributing 4 disjuncts over 3 conjuncts
[2021-02-22 02:21:30,307 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:30,308 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-02-22 02:21:30,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-02-22 02:21:30,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53
[2021-02-22 02:21:30,331 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.5 percent of original size 29
[2021-02-22 02:21:30,339 WARN L141 QuantifierPusher]: treesize reduction 16, result has 82.0 percent of original size
[2021-02-22 02:21:30,351 WARN L147 QuantifierPusher]: treesize reduction 16, result has 82.0 percent of original size 73
[2021-02-22 02:21:30,353 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE
[2021-02-22 02:21:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-22 02:21:30,401 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-22 02:21:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-22 02:21:30,460 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-22 02:21:30,495 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2021-02-22 02:21:30,495 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2021-02-22 02:21:30,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-02-22 02:21:30,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:21:30 BoogieIcfgContainer
[2021-02-22 02:21:30,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-02-22 02:21:30,515 INFO L168 Benchmark]: Toolchain (without parser) took 2803.70 ms. Allocated memory is still 164.6 MB. Free memory was 141.3 MB in the beginning and 88.9 MB in the end (delta: 52.4 MB). Peak memory consumption was 53.0 MB. Max. memory is 8.0 GB.
[2021-02-22 02:21:30,515 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 164.6 MB. Free memory was 139.1 MB in the beginning and 139.0 MB in the end (delta: 117.7 kB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-02-22 02:21:30,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.94 ms. Allocated memory is still 164.6 MB. Free memory was 140.0 MB in the beginning and 130.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
[2021-02-22 02:21:30,517 INFO L168 Benchmark]: Boogie Preprocessor took 36.60 ms. Allocated memory is still 164.6 MB. Free memory was 130.5 MB in the beginning and 129.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-02-22 02:21:30,518 INFO L168 Benchmark]: RCFGBuilder took 637.84 ms. Allocated memory is still 164.6 MB. Free memory was 128.9 MB in the beginning and 144.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB.
[2021-02-22 02:21:30,519 INFO L168 Benchmark]: TraceAbstraction took 1848.09 ms. Allocated memory is still 164.6 MB. Free memory was 144.1 MB in the beginning and 88.9 MB in the end (delta: 55.2 MB). Peak memory consumption was 56.3 MB. Max. memory is 8.0 GB.
[2021-02-22 02:21:30,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23 ms. Allocated memory is still 164.6 MB. Free memory was 139.1 MB in the beginning and 139.0 MB in the end (delta: 117.7 kB). There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 262.94 ms. Allocated memory is still 164.6 MB. Free memory was 140.0 MB in the beginning and 130.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 36.60 ms. Allocated memory is still 164.6 MB. Free memory was 130.5 MB in the beginning and 129.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 637.84 ms. Allocated memory is still 164.6 MB. Free memory was 128.9 MB in the beginning and 144.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 1848.09 ms. Allocated memory is still 164.6 MB. Free memory was 144.1 MB in the beginning and 88.9 MB in the end (delta: 55.2 MB). Peak memory consumption was 56.3 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 16]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L23] Char *tmp;
[L40] Char pathbuf[1 +1];
[L42] Char *bound = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1;
[L44] tmp = pathbuf + sizeof(pathbuf)/sizeof(*pathbuf) - 1
[L46] CALL glob2 (pathbuf, bound)
[L27] Char *p;
[L29] p = pathbuf
[L29] COND TRUE p <= pathlim
[L31] CALL __VERIFIER_assert(p<=tmp)
[L15] COND FALSE !(!(cond))
[L31] RET __VERIFIER_assert(p<=tmp)
[L32] *p = 1
[L29] p++
[L29] COND TRUE p <= pathlim
[L31] CALL __VERIFIER_assert(p<=tmp)
[L15] COND TRUE !(cond)
[L16] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 82 SDslu, 117 SDs, 0 SdLazy, 151 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 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...