/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-72570d3
[2020-08-22 19:50:48,846 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-08-22 19:50:48,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-22 19:50:48,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-22 19:50:48,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-22 19:50:48,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-22 19:50:48,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-22 19:50:48,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-22 19:50:48,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-22 19:50:48,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-22 19:50:48,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-08-22 19:50:48,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-22 19:50:48,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-22 19:50:48,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-22 19:50:48,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-22 19:50:48,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-22 19:50:48,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-22 19:50:48,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-22 19:50:48,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-22 19:50:48,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-22 19:50:48,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-22 19:50:48,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-22 19:50:48,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-08-22 19:50:48,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-22 19:50:48,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-22 19:50:48,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-22 19:50:48,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-22 19:50:48,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-22 19:50:48,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-22 19:50:48,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-22 19:50:48,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-22 19:50:48,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-22 19:50:48,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-22 19:50:48,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-22 19:50:48,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-22 19:50:48,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-22 19:50:48,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-22 19:50:48,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-22 19:50:48,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-08-22 19:50:48,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-08-22 19:50:48,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-08-22 19:50:48,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-08-22 19:50:48,922 INFO L113 SettingsManager]: Loading preferences was successful
[2020-08-22 19:50:48,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-22 19:50:48,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-22 19:50:48,924 INFO L138 SettingsManager]: * sizeof long=4
[2020-08-22 19:50:48,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-08-22 19:50:48,925 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-08-22 19:50:48,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-08-22 19:50:48,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-08-22 19:50:48,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-22 19:50:48,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-08-22 19:50:48,925 INFO L138 SettingsManager]: * sizeof long double=12
[2020-08-22 19:50:48,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-08-22 19:50:48,926 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-08-22 19:50:48,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-08-22 19:50:48,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-22 19:50:48,926 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-08-22 19:50:48,927 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-08-22 19:50:48,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-08-22 19:50:48,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-22 19:50:48,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-22 19:50:48,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-08-22 19:50:48,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-22 19:50:48,928 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
[2020-08-22 19:50:49,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-22 19:50:49,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-22 19:50:49,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-22 19:50:49,256 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-08-22 19:50:49,257 INFO L275 PluginConnector]: CDTParser initialized
[2020-08-22 19:50:49,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c
[2020-08-22 19:50:49,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda4cd337/fa64d774cea64d50901b9667278afc68/FLAG215791031
[2020-08-22 19:50:49,916 INFO L306 CDTParser]: Found 1 translation units.
[2020-08-22 19:50:49,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/pc_sfifo_1.cil-1.c
[2020-08-22 19:50:49,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda4cd337/fa64d774cea64d50901b9667278afc68/FLAG215791031
[2020-08-22 19:50:50,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda4cd337/fa64d774cea64d50901b9667278afc68
[2020-08-22 19:50:50,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-22 19:50:50,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-22 19:50:50,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-22 19:50:50,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-22 19:50:50,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-22 19:50:50,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:50:50" (1/1) ...
[2020-08-22 19:50:50,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2720981c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50, skipping insertion in model container
[2020-08-22 19:50:50,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:50:50" (1/1) ...
[2020-08-22 19:50:50,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-08-22 19:50:50,333 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-08-22 19:50:50,570 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-22 19:50:50,576 INFO L203 MainTranslator]: Completed pre-run
[2020-08-22 19:50:50,610 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-22 19:50:50,629 INFO L208 MainTranslator]: Completed translation
[2020-08-22 19:50:50,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50 WrapperNode
[2020-08-22 19:50:50,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-22 19:50:50,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-22 19:50:50,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-22 19:50:50,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-08-22 19:50:50,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50" (1/1) ...
[2020-08-22 19:50:50,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50" (1/1) ...
[2020-08-22 19:50:50,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50" (1/1) ...
[2020-08-22 19:50:50,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50" (1/1) ...
[2020-08-22 19:50:50,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50" (1/1) ...
[2020-08-22 19:50:50,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50" (1/1) ...
[2020-08-22 19:50:50,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50" (1/1) ...
[2020-08-22 19:50:50,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-22 19:50:50,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-22 19:50:50,770 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-08-22 19:50:50,770 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-08-22 19:50:50,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50" (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
[2020-08-22 19:50:50,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-22 19:50:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-22 19:50:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure error
[2020-08-22 19:50:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered
[2020-08-22 19:50:50,833 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered
[2020-08-22 19:50:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads
[2020-08-22 19:50:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p
[2020-08-22 19:50:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c
[2020-08-22 19:50:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads
[2020-08-22 19:50:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread
[2020-08-22 19:50:50,834 INFO L138 BoogieDeclarations]: Found implementation of procedure eval
[2020-08-22 19:50:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation
[2020-08-22 19:50:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation
[2020-08-22 19:50:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model
[2020-08-22 19:50:50,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-08-22 19:50:50,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-22 19:50:50,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-08-22 19:50:50,836 INFO L130 BoogieDeclarations]: Found specification of procedure error
[2020-08-22 19:50:50,836 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered
[2020-08-22 19:50:50,836 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered
[2020-08-22 19:50:50,836 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads
[2020-08-22 19:50:50,836 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p
[2020-08-22 19:50:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c
[2020-08-22 19:50:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads
[2020-08-22 19:50:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread
[2020-08-22 19:50:50,837 INFO L130 BoogieDeclarations]: Found specification of procedure eval
[2020-08-22 19:50:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation
[2020-08-22 19:50:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation
[2020-08-22 19:50:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure init_model
[2020-08-22 19:50:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-08-22 19:50:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-22 19:50:50,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-22 19:50:51,344 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-22 19:50:51,345 INFO L295 CfgBuilder]: Removed 4 assume(true) statements.
[2020-08-22 19:50:51,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:50:51 BoogieIcfgContainer
[2020-08-22 19:50:51,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-22 19:50:51,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-22 19:50:51,354 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-08-22 19:50:51,358 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-08-22 19:50:51,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:50:50" (1/3) ...
[2020-08-22 19:50:51,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241f1955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:50:51, skipping insertion in model container
[2020-08-22 19:50:51,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:50:50" (2/3) ...
[2020-08-22 19:50:51,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241f1955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:50:51, skipping insertion in model container
[2020-08-22 19:50:51,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:50:51" (3/3) ...
[2020-08-22 19:50:51,362 INFO L109 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1.c
[2020-08-22 19:50:51,374 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-22 19:50:51,383 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-22 19:50:51,398 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-22 19:50:51,422 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-08-22 19:50:51,422 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-08-22 19:50:51,422 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-08-22 19:50:51,422 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-22 19:50:51,423 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-22 19:50:51,423 INFO L380 AbstractCegarLoop]: Difference is false
[2020-08-22 19:50:51,423 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-22 19:50:51,424 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-22 19:50:51,446 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states.
[2020-08-22 19:50:51,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2020-08-22 19:50:51,461 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-22 19:50:51,462 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-22 19:50:51,463 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-22 19:50:51,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-22 19:50:51,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1380535506, now seen corresponding path program 1 times
[2020-08-22 19:50:51,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-22 19:50:51,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27352757]
[2020-08-22 19:50:51,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-22 19:50:51,541 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-08-22 19:50:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 19:50:51,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 19:50:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-22 19:50:51,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-08-22 19:50:51,859 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-22 19:50:51,860 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-08-22 19:50:51,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-22 19:50:51,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:50:51 BoogieIcfgContainer
[2020-08-22 19:50:51,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-22 19:50:51,897 INFO L168 Benchmark]: Toolchain (without parser) took 1638.85 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 122.8 MB in the end (delta: -21.3 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB.
[2020-08-22 19:50:51,899 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-08-22 19:50:51,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.80 ms. Allocated memory is still 137.4 MB. Free memory was 101.2 MB in the beginning and 88.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
[2020-08-22 19:50:51,901 INFO L168 Benchmark]: Boogie Preprocessor took 139.18 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 88.9 MB in the beginning and 177.5 MB in the end (delta: -88.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB.
[2020-08-22 19:50:51,902 INFO L168 Benchmark]: RCFGBuilder took 582.84 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 145.0 MB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB.
[2020-08-22 19:50:51,904 INFO L168 Benchmark]: TraceAbstraction took 537.57 ms. Allocated memory is still 200.3 MB. Free memory was 144.3 MB in the beginning and 122.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB.
[2020-08-22 19:50:51,912 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 373.80 ms. Allocated memory is still 137.4 MB. Free memory was 101.2 MB in the beginning and 88.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 139.18 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 88.9 MB in the beginning and 177.5 MB in the end (delta: -88.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 582.84 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 145.0 MB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 537.57 ms. Allocated memory is still 200.3 MB. Free memory was 144.3 MB in the beginning and 122.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L14] int q_buf_0 ;
[L15] int q_free ;
[L16] int q_read_ev ;
[L17] int q_write_ev ;
[L18] int p_num_write ;
[L19] int p_last_write ;
[L20] int p_dw_st ;
[L21] int p_dw_pc ;
[L22] int p_dw_i ;
[L23] int c_num_read ;
[L24] int c_last_read ;
[L25] int c_dr_st ;
[L26] int c_dr_pc ;
[L27] int c_dr_i ;
[L134] static int a_t ;
[L350] int __retres1 ;
[L354] CALL init_model()
[L336] q_free = 1
[L337] q_write_ev = 2
[L338] q_read_ev = q_write_ev
[L339] p_num_write = 0
[L340] p_dw_pc = 0
[L341] p_dw_i = 1
[L342] c_num_read = 0
[L343] c_dr_pc = 0
[L344] c_dr_i = 1
[L354] RET init_model()
[L355] CALL start_simulation()
[L304] int kernel_st ;
[L305] int tmp ;
[L309] kernel_st = 0
[L310] CALL init_threads()
[L196] COND TRUE (int )p_dw_i == 1
[L197] p_dw_st = 0
[L201] COND TRUE (int )c_dr_i == 1
[L202] c_dr_st = 0
[L310] RET init_threads()
[L313] COND TRUE 1
[L316] kernel_st = 1
[L317] CALL eval()
[L231] int tmp ;
[L232] int tmp___0 ;
[L233] int tmp___1 ;
[L237] COND TRUE 1
[L240] CALL, EXPR exists_runnable_thread()
[L211] int __retres1 ;
[L214] COND TRUE (int )p_dw_st == 0
[L215] __retres1 = 1
[L227] return (__retres1);
[L240] RET, EXPR exists_runnable_thread()
[L240] tmp___1 = exists_runnable_thread()
[L242] COND TRUE \read(tmp___1)
[L247] COND TRUE (int )p_dw_st == 0
[L249] tmp = __VERIFIER_nondet_int()
[L251] COND FALSE !(\read(tmp))
[L257] CALL error()
[L9] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 15 procedures, 183 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=183occurred 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: 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...