/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:47:13,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:47:13,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:47:13,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:47:13,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:47:13,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:47:13,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:47:13,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:47:13,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:47:13,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:47:13,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:47:13,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:47:13,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:47:13,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:47:13,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:47:13,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:47:13,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:47:13,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:47:13,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:47:13,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:47:13,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:47:13,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:47:13,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:47:13,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:47:13,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 08:47:13,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:47:13,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:47:13,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:47:13,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:47:13,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:47:13,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:47:13,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:47:13,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:47:13,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:47:13,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:47:13,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:47:13,102 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 08:47:13,123 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:47:13,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:47:13,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:47:13,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:47:13,126 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:47:13,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:47:13,126 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:47:13,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:47:13,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:47:13,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:47:13,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:47:13,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:47:13,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:47:13,129 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:47:13,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:47:13,129 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:47:13,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:47:13,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:47:13,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:47:13,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:47:13,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:47:13,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:47:13,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:47:13,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:47:13,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:47:13,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:47:13,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:47:13,132 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 08:47:13,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:47:13,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:47:13,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:47:13,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:47:13,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:47:13,421 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:47:13,422 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:47:13,423 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2019-12-27 08:47:13,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b54aff6e/74d9dbeb9a334ef78510f71b043e1e92/FLAGdafc18380 [2019-12-27 08:47:14,066 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:47:14,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2019-12-27 08:47:14,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b54aff6e/74d9dbeb9a334ef78510f71b043e1e92/FLAGdafc18380 [2019-12-27 08:47:14,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b54aff6e/74d9dbeb9a334ef78510f71b043e1e92 [2019-12-27 08:47:14,344 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:47:14,346 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:47:14,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:14,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:47:14,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:47:14,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:14" (1/1) ... [2019-12-27 08:47:14,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a8adc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:14, skipping insertion in model container [2019-12-27 08:47:14,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:47:14" (1/1) ... [2019-12-27 08:47:14,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:47:14,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:47:14,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:14,894 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:47:14,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:47:15,021 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:47:15,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15 WrapperNode [2019-12-27 08:47:15,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:47:15,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:15,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:47:15,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:47:15,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:47:15,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:47:15,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:47:15,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:47:15,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (1/1) ... [2019-12-27 08:47:15,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:47:15,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:47:15,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:47:15,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:47:15,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (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 [2019-12-27 08:47:15,162 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 08:47:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 08:47:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:47:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:47:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:47:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:47:15,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:47:15,165 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:47:15,301 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_w_returnLabel [2019-12-27 08:47:15,340 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_r_returnLabel [2019-12-27 08:47:15,482 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:47:15,482 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 08:47:15,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:47:15 BoogieIcfgContainer [2019-12-27 08:47:15,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:47:15,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:47:15,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:47:15,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:47:15,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:47:14" (1/3) ... [2019-12-27 08:47:15,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722f547e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:47:15, skipping insertion in model container [2019-12-27 08:47:15,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:47:15" (2/3) ... [2019-12-27 08:47:15,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722f547e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:47:15, skipping insertion in model container [2019-12-27 08:47:15,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:47:15" (3/3) ... [2019-12-27 08:47:15,497 INFO L109 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2019-12-27 08:47:15,505 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:47:15,506 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:47:15,512 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 08:47:15,513 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:47:15,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,538 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,538 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,539 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,543 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,543 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,543 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,544 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:47:15,561 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-27 08:47:15,581 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:47:15,581 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:47:15,581 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:47:15,581 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:47:15,581 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:47:15,582 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:47:15,582 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:47:15,582 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:47:15,591 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions [2019-12-27 08:47:15,608 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 126 states. [2019-12-27 08:47:15,611 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2019-12-27 08:47:15,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-27 08:47:15,621 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:15,622 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:47:15,622 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:15,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1607773896, now seen corresponding path program 1 times [2019-12-27 08:47:15,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:15,640 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677648178] [2019-12-27 08:47:15,640 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:15,877 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677648178] [2019-12-27 08:47:15,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:15,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:15,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544318607] [2019-12-27 08:47:15,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:15,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:15,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:15,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:15,903 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 3 states. [2019-12-27 08:47:15,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:15,954 INFO L93 Difference]: Finished difference Result 166 states and 280 transitions. [2019-12-27 08:47:15,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:15,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-27 08:47:15,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:15,965 INFO L225 Difference]: With dead ends: 166 [2019-12-27 08:47:15,965 INFO L226 Difference]: Without dead ends: 38 [2019-12-27 08:47:15,967 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:15,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-27 08:47:15,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-12-27 08:47:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-27 08:47:15,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2019-12-27 08:47:16,000 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 20 [2019-12-27 08:47:16,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:16,000 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2019-12-27 08:47:16,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:16,001 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2019-12-27 08:47:16,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:47:16,002 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:16,002 INFO L411 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] [2019-12-27 08:47:16,002 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:16,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:16,003 INFO L82 PathProgramCache]: Analyzing trace with hash -817206821, now seen corresponding path program 1 times [2019-12-27 08:47:16,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:16,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979053422] [2019-12-27 08:47:16,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:16,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:16,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979053422] [2019-12-27 08:47:16,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:16,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:47:16,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741273808] [2019-12-27 08:47:16,088 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:47:16,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:16,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:47:16,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:16,089 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand 3 states. [2019-12-27 08:47:16,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:16,108 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2019-12-27 08:47:16,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:47:16,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-27 08:47:16,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:16,110 INFO L225 Difference]: With dead ends: 38 [2019-12-27 08:47:16,110 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 08:47:16,111 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:47:16,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 08:47:16,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 08:47:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 08:47:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2019-12-27 08:47:16,119 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 22 [2019-12-27 08:47:16,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:16,121 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2019-12-27 08:47:16,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:47:16,122 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2019-12-27 08:47:16,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:47:16,123 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:47:16,123 INFO L411 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] [2019-12-27 08:47:16,123 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:47:16,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:47:16,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1086541363, now seen corresponding path program 2 times [2019-12-27 08:47:16,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:47:16,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468963022] [2019-12-27 08:47:16,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:47:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:47:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:47:16,246 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468963022] [2019-12-27 08:47:16,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:47:16,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 08:47:16,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726353072] [2019-12-27 08:47:16,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:47:16,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:47:16,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:47:16,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:47:16,251 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 4 states. [2019-12-27 08:47:16,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:47:16,262 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-12-27 08:47:16,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:47:16,264 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-27 08:47:16,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:47:16,265 INFO L225 Difference]: With dead ends: 19 [2019-12-27 08:47:16,265 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:47:16,266 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:47:16,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:47:16,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:47:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:47:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:47:16,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-12-27 08:47:16,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:47:16,267 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:47:16,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:47:16,267 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:47:16,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:47:16,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:47:16 BasicIcfg [2019-12-27 08:47:16,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:47:16,279 INFO L168 Benchmark]: Toolchain (without parser) took 1931.71 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 101.0 MB in the end (delta: 390.9 kB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:16,280 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 08:47:16,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.92 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 162.5 MB in the end (delta: -61.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:16,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.39 ms. Allocated memory is still 202.9 MB. Free memory was 162.5 MB in the beginning and 160.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:16,284 INFO L168 Benchmark]: Boogie Preprocessor took 21.72 ms. Allocated memory is still 202.9 MB. Free memory was 160.5 MB in the beginning and 159.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:16,285 INFO L168 Benchmark]: RCFGBuilder took 385.29 ms. Allocated memory is still 202.9 MB. Free memory was 159.1 MB in the beginning and 141.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:16,286 INFO L168 Benchmark]: TraceAbstraction took 789.95 ms. Allocated memory is still 202.9 MB. Free memory was 141.3 MB in the beginning and 101.0 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:47:16,291 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 675.92 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 162.5 MB in the end (delta: -61.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.39 ms. Allocated memory is still 202.9 MB. Free memory was 162.5 MB in the beginning and 160.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.72 ms. Allocated memory is still 202.9 MB. Free memory was 160.5 MB in the beginning and 159.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.29 ms. Allocated memory is still 202.9 MB. Free memory was 159.1 MB in the beginning and 141.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 789.95 ms. Allocated memory is still 202.9 MB. Free memory was 141.3 MB in the beginning and 101.0 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 86 SDtfs, 19 SDslu, 69 SDs, 0 SdLazy, 12 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 2037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...