/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test02.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-dev-36cd7be
[2021-02-23 23:04:53,851 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-02-23 23:04:53,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-02-23 23:04:53,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-02-23 23:04:53,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-02-23 23:04:53,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-02-23 23:04:53,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-02-23 23:04:53,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-02-23 23:04:53,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-02-23 23:04:53,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-02-23 23:04:53,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-02-23 23:04:53,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-02-23 23:04:53,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-02-23 23:04:53,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-02-23 23:04:53,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-02-23 23:04:53,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-02-23 23:04:53,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-02-23 23:04:53,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-02-23 23:04:53,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-02-23 23:04:53,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-02-23 23:04:53,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-02-23 23:04:53,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-02-23 23:04:53,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-02-23 23:04:53,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-02-23 23:04:53,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-02-23 23:04:53,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-02-23 23:04:53,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-02-23 23:04:53,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-02-23 23:04:53,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2021-02-23 23:04:53,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-02-23 23:04:53,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2021-02-23 23:04:53,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
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[2021-02-23 23:04:53,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2021-02-23 23:04:53,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2021-02-23 23:04:53,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-02-23 23:04:53,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2021-02-23 23:04:54,004 INFO L113 SettingsManager]: Loading preferences was successful
[2021-02-23 23:04:54,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-02-23 23:04:54,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-02-23 23:04:54,010 INFO L138 SettingsManager]: * sizeof long=4
[2021-02-23 23:04:54,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-02-23 23:04:54,010 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-02-23 23:04:54,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-02-23 23:04:54,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-02-23 23:04:54,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-02-23 23:04:54,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-02-23 23:04:54,012 INFO L138 SettingsManager]: * sizeof long double=12
[2021-02-23 23:04:54,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-02-23 23:04:54,013 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-02-23 23:04:54,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-02-23 23:04:54,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-02-23 23:04:54,014 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2021-02-23 23:04:54,014 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-02-23 23:04:54,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-02-23 23:04:54,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-02-23 23:04:54,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-02-23 23:04:54,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2021-02-23 23:04:54,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-02-23 23:04:54,015 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true
[2021-02-23 23:04:54,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-02-23 23:04:54,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-02-23 23:04:54,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-02-23 23:04:54,519 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-02-23 23:04:54,520 INFO L275 PluginConnector]: CDTParser initialized
[2021-02-23 23:04:54,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test02.c
[2021-02-23 23:04:54,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c9cf8b3/7b9fe0ea8a934facbed84f74468b5411/FLAG30dcac941
[2021-02-23 23:04:55,269 INFO L306 CDTParser]: Found 1 translation units.
[2021-02-23 23:04:55,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test02.c
[2021-02-23 23:04:55,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c9cf8b3/7b9fe0ea8a934facbed84f74468b5411/FLAG30dcac941
[2021-02-23 23:04:55,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90c9cf8b3/7b9fe0ea8a934facbed84f74468b5411
[2021-02-23 23:04:55,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-02-23 23:04:55,642 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-02-23 23:04:55,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-02-23 23:04:55,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-02-23 23:04:55,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-02-23 23:04:55,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:55" (1/1) ...
[2021-02-23 23:04:55,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe1789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55, skipping insertion in model container
[2021-02-23 23:04:55,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:55" (1/1) ...
[2021-02-23 23:04:55,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-02-23 23:04:55,681 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-02-23 23:04:55,828 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test02.c[413,426]
[2021-02-23 23:04:55,832 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-23 23:04:55,842 INFO L203 MainTranslator]: Completed pre-run
[2021-02-23 23:04:55,858 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test02.c[413,426]
[2021-02-23 23:04:55,859 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-02-23 23:04:55,876 INFO L208 MainTranslator]: Completed translation
[2021-02-23 23:04:55,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55 WrapperNode
[2021-02-23 23:04:55,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-02-23 23:04:55,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-02-23 23:04:55,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-02-23 23:04:55,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-02-23 23:04:55,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55" (1/1) ...
[2021-02-23 23:04:55,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55" (1/1) ...
[2021-02-23 23:04:55,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55" (1/1) ...
[2021-02-23 23:04:55,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55" (1/1) ...
[2021-02-23 23:04:55,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55" (1/1) ...
[2021-02-23 23:04:55,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55" (1/1) ...
[2021-02-23 23:04:55,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55" (1/1) ...
[2021-02-23 23:04:55,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-02-23 23:04:55,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-02-23 23:04:55,912 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-02-23 23:04:55,912 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-02-23 23:04:55,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55" (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
[2021-02-23 23:04:56,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-02-23 23:04:56,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-02-23 23:04:56,019 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-02-23 23:04:56,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-02-23 23:04:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-02-23 23:04:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-02-23 23:04:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-02-23 23:04:56,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-02-23 23:04:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-02-23 23:04:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-02-23 23:04:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-02-23 23:04:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-02-23 23:04:56,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-02-23 23:04:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-02-23 23:04:56,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-02-23 23:04:56,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-02-23 23:04:56,311 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-02-23 23:04:56,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:56 BoogieIcfgContainer
[2021-02-23 23:04:56,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-02-23 23:04:56,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-02-23 23:04:56,321 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-02-23 23:04:56,328 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-02-23 23:04:56,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:04:55" (1/3) ...
[2021-02-23 23:04:56,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d426d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:56, skipping insertion in model container
[2021-02-23 23:04:56,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:55" (2/3) ...
[2021-02-23 23:04:56,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d426d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:56, skipping insertion in model container
[2021-02-23 23:04:56,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:56" (3/3) ...
[2021-02-23 23:04:56,333 INFO L111 eAbstractionObserver]: Analyzing ICFG test02.c
[2021-02-23 23:04:56,342 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2021-02-23 23:04:56,348 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-02-23 23:04:56,397 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-02-23 23:04:56,428 INFO L376 AbstractCegarLoop]: Interprodecural is true
[2021-02-23 23:04:56,428 INFO L377 AbstractCegarLoop]: Hoare is true
[2021-02-23 23:04:56,429 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2021-02-23 23:04:56,429 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-02-23 23:04:56,429 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-02-23 23:04:56,429 INFO L381 AbstractCegarLoop]: Difference is false
[2021-02-23 23:04:56,429 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-02-23 23:04:56,429 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-02-23 23:04:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states.
[2021-02-23 23:04:56,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-02-23 23:04:56,459 INFO L414 BasicCegarLoop]: Found error trace
[2021-02-23 23:04:56,460 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]
[2021-02-23 23:04:56,461 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-23 23:04:56,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-02-23 23:04:56,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1344963505, now seen corresponding path program 1 times
[2021-02-23 23:04:56,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-02-23 23:04:56,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483879549]
[2021-02-23 23:04:56,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-23 23:04:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-23 23:04:56,751 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-23 23:04:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-02-23 23:04:56,810 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-02-23 23:04:56,842 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2021-02-23 23:04:56,842 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2021-02-23 23:04:56,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-02-23 23:04:56,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 11:04:56 BoogieIcfgContainer
[2021-02-23 23:04:56,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-02-23 23:04:56,884 INFO L168 Benchmark]: Toolchain (without parser) took 1252.80 ms. Allocated memory is still 161.5 MB. Free memory was 138.9 MB in the beginning and 133.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB.
[2021-02-23 23:04:56,884 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 161.5 MB. Free memory is still 137.5 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-02-23 23:04:56,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.85 ms. Allocated memory is still 161.5 MB. Free memory was 137.7 MB in the beginning and 128.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB.
[2021-02-23 23:04:56,887 INFO L168 Benchmark]: Boogie Preprocessor took 33.45 ms. Allocated memory is still 161.5 MB. Free memory was 128.6 MB in the beginning and 127.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
[2021-02-23 23:04:56,889 INFO L168 Benchmark]: RCFGBuilder took 406.72 ms. Allocated memory is still 161.5 MB. Free memory was 127.2 MB in the beginning and 114.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB.
[2021-02-23 23:04:56,890 INFO L168 Benchmark]: TraceAbstraction took 560.02 ms. Allocated memory is still 161.5 MB. Free memory was 113.6 MB in the beginning and 133.5 MB in the end (delta: -19.9 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-02-23 23:04:56,895 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.28 ms. Allocated memory is still 161.5 MB. Free memory is still 137.5 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 228.85 ms. Allocated memory is still 161.5 MB. Free memory was 137.7 MB in the beginning and 128.7 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 33.45 ms. Allocated memory is still 161.5 MB. Free memory was 128.6 MB in the beginning and 127.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 406.72 ms. Allocated memory is still 161.5 MB. Free memory was 127.2 MB in the beginning and 114.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 560.02 ms. Allocated memory is still 161.5 MB. Free memory was 113.6 MB in the beginning and 133.5 MB in the end (delta: -19.9 MB). There was no memory consumed. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 21]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L6] int q;
VAL [\old(q)=51, q=0]
[L9] int a, b;
VAL [\old(q)=0, a={3:0}, q=0]
[L10] int *p1 = &a;
VAL [\old(q)=0, a={3:0}, p1={3:0}, q=0]
[L11] int *p2 = p1;
VAL [\old(q)=0, a={3:0}, p1={3:0}, p2={3:0}, q=0]
[L13] q = 0
VAL [\old(q)=0, a={3:0}, p1={3:0}, p2={3:0}, q=0]
[L15] COND TRUE p1 == p2
VAL [\old(q)=0, a={3:0}, p1={3:0}, p2={3:0}, q=0]
[L21] reach_error()
VAL [\old(q)=0, a={3:0}, p1={3:0}, p2={3:0}, q=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...