/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 23:12:04,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 23:12:04,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 23:12:04,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 23:12:04,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 23:12:04,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 23:12:04,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 23:12:04,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 23:12:04,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 23:12:04,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 23:12:04,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 23:12:04,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 23:12:04,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 23:12:04,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 23:12:04,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 23:12:04,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 23:12:04,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 23:12:04,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 23:12:04,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 23:12:04,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 23:12:04,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 23:12:04,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 23:12:04,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 23:12:04,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 23:12:04,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 23:12:04,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 23:12:04,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 23:12:04,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 23:12:04,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 23:12:04,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 23:12:04,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 23:12:04,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 23:12:04,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 23:12:04,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 23:12:04,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 23:12:04,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 23:12:04,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 23:12:04,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 23:12:04,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 23:12:04,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 23:12:04,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 23:12:04,635 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-VariableLbe.epf [2019-12-18 23:12:04,657 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 23:12:04,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 23:12:04,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 23:12:04,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 23:12:04,659 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 23:12:04,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 23:12:04,659 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 23:12:04,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 23:12:04,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 23:12:04,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 23:12:04,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 23:12:04,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 23:12:04,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 23:12:04,661 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 23:12:04,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 23:12:04,661 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 23:12:04,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 23:12:04,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 23:12:04,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 23:12:04,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 23:12:04,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 23:12:04,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 23:12:04,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 23:12:04,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 23:12:04,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 23:12:04,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 23:12:04,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 23:12:04,664 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 23:12:04,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 23:12:04,664 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 23:12:04,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 23:12:04,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 23:12:04,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 23:12:04,959 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 23:12:04,960 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 23:12:04,960 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2019-12-18 23:12:05,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42328c595/7d5cc0d7acf0400389140412a88fefdc/FLAG8384f648c [2019-12-18 23:12:05,556 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 23:12:05,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2019-12-18 23:12:05,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42328c595/7d5cc0d7acf0400389140412a88fefdc/FLAG8384f648c [2019-12-18 23:12:05,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42328c595/7d5cc0d7acf0400389140412a88fefdc [2019-12-18 23:12:05,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 23:12:05,857 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 23:12:05,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 23:12:05,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 23:12:05,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 23:12:05,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:12:05" (1/1) ... [2019-12-18 23:12:05,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a77478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:05, skipping insertion in model container [2019-12-18 23:12:05,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:12:05" (1/1) ... [2019-12-18 23:12:05,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 23:12:05,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 23:12:06,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:12:06,760 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 23:12:06,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:12:07,204 INFO L208 MainTranslator]: Completed translation [2019-12-18 23:12:07,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07 WrapperNode [2019-12-18 23:12:07,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 23:12:07,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 23:12:07,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 23:12:07,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 23:12:07,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (1/1) ... [2019-12-18 23:12:07,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (1/1) ... [2019-12-18 23:12:07,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 23:12:07,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 23:12:07,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 23:12:07,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 23:12:07,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (1/1) ... [2019-12-18 23:12:07,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (1/1) ... [2019-12-18 23:12:07,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (1/1) ... [2019-12-18 23:12:07,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (1/1) ... [2019-12-18 23:12:07,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (1/1) ... [2019-12-18 23:12:07,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (1/1) ... [2019-12-18 23:12:07,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (1/1) ... [2019-12-18 23:12:07,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 23:12:07,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 23:12:07,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 23:12:07,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 23:12:07,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (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 [2019-12-18 23:12:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 23:12:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 23:12:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-18 23:12:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-18 23:12:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 23:12:07,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 23:12:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 23:12:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-12-18 23:12:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-12-18 23:12:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 23:12:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-18 23:12:07,411 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 23:12:08,045 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 23:12:08,045 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-18 23:12:08,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:12:08 BoogieIcfgContainer [2019-12-18 23:12:08,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 23:12:08,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 23:12:08,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 23:12:08,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 23:12:08,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:12:05" (1/3) ... [2019-12-18 23:12:08,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a02889c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:12:08, skipping insertion in model container [2019-12-18 23:12:08,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:12:07" (2/3) ... [2019-12-18 23:12:08,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a02889c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:12:08, skipping insertion in model container [2019-12-18 23:12:08,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:12:08" (3/3) ... [2019-12-18 23:12:08,055 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2019-12-18 23:12:08,063 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 23:12:08,064 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 23:12:08,070 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-18 23:12:08,071 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 23:12:08,097 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,097 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,098 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,098 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,098 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,099 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,099 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,099 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,099 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,100 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,100 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,100 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,101 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,101 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,105 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,105 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,106 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,106 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,106 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,106 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,107 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:12:08,131 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-18 23:12:08,149 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 23:12:08,149 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 23:12:08,149 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 23:12:08,149 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 23:12:08,149 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 23:12:08,149 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 23:12:08,150 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 23:12:08,150 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 23:12:08,165 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 84 transitions [2019-12-18 23:12:08,168 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions [2019-12-18 23:12:08,213 INFO L126 PetriNetUnfolder]: 5/95 cut-off events. [2019-12-18 23:12:08,213 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 23:12:08,220 INFO L76 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 5/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs. 7/91 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2019-12-18 23:12:08,223 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions [2019-12-18 23:12:08,260 INFO L126 PetriNetUnfolder]: 5/95 cut-off events. [2019-12-18 23:12:08,260 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 23:12:08,263 INFO L76 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 5/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs. 7/91 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2019-12-18 23:12:08,266 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 392 [2019-12-18 23:12:08,268 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 23:12:10,875 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 18 [2019-12-18 23:12:11,156 WARN L192 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-12-18 23:12:11,914 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-12-18 23:12:12,043 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-12-18 23:12:12,204 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-12-18 23:12:12,381 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-12-18 23:12:12,432 INFO L206 etLargeBlockEncoding]: Checked pairs total: 291 [2019-12-18 23:12:12,432 INFO L214 etLargeBlockEncoding]: Total number of compositions: 100 [2019-12-18 23:12:12,436 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 15 transitions [2019-12-18 23:12:12,443 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 25 states. [2019-12-18 23:12:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-12-18 23:12:12,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2019-12-18 23:12:12,450 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:12:12,450 INFO L411 BasicCegarLoop]: trace histogram [1] [2019-12-18 23:12:12,451 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:12:12,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:12:12,456 INFO L82 PathProgramCache]: Analyzing trace with hash 345, now seen corresponding path program 1 times [2019-12-18 23:12:12,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:12:12,463 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288495934] [2019-12-18 23:12:12,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:12:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:12:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 23:12:12,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288495934] [2019-12-18 23:12:12,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:12:12,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2019-12-18 23:12:12,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204204820] [2019-12-18 23:12:12,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-18 23:12:12,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:12:12,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-18 23:12:12,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 23:12:12,767 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-12-18 23:12:12,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:12:12,780 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-12-18 23:12:12,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-18 23:12:12,781 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2019-12-18 23:12:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:12:12,786 INFO L225 Difference]: With dead ends: 17 [2019-12-18 23:12:12,786 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 23:12:12,787 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-18 23:12:12,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 23:12:12,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 23:12:12,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 23:12:12,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 23:12:12,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1 [2019-12-18 23:12:12,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:12:12,808 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 23:12:12,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-18 23:12:12,808 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 23:12:12,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 23:12:12,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:12:12 BasicIcfg [2019-12-18 23:12:12,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 23:12:12,814 INFO L168 Benchmark]: Toolchain (without parser) took 6958.05 ms. Allocated memory was 141.6 MB in the beginning and 276.3 MB in the end (delta: 134.7 MB). Free memory was 102.8 MB in the beginning and 196.9 MB in the end (delta: -94.1 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. [2019-12-18 23:12:12,815 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 23:12:12,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1346.81 ms. Allocated memory was 141.6 MB in the beginning and 238.0 MB in the end (delta: 96.5 MB). Free memory was 102.3 MB in the beginning and 171.2 MB in the end (delta: -68.8 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. [2019-12-18 23:12:12,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.22 ms. Allocated memory is still 238.0 MB. Free memory was 171.2 MB in the beginning and 167.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-12-18 23:12:12,818 INFO L168 Benchmark]: Boogie Preprocessor took 49.97 ms. Allocated memory is still 238.0 MB. Free memory was 167.0 MB in the beginning and 165.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-18 23:12:12,819 INFO L168 Benchmark]: RCFGBuilder took 719.94 ms. Allocated memory is still 238.0 MB. Free memory was 165.5 MB in the beginning and 126.8 MB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2019-12-18 23:12:12,820 INFO L168 Benchmark]: TraceAbstraction took 4764.45 ms. Allocated memory was 238.0 MB in the beginning and 276.3 MB in the end (delta: 38.3 MB). Free memory was 126.8 MB in the beginning and 196.9 MB in the end (delta: -70.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 23:12:12,824 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1346.81 ms. Allocated memory was 141.6 MB in the beginning and 238.0 MB in the end (delta: 96.5 MB). Free memory was 102.3 MB in the beginning and 171.2 MB in the end (delta: -68.8 MB). Peak memory consumption was 73.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.22 ms. Allocated memory is still 238.0 MB. Free memory was 171.2 MB in the beginning and 167.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.97 ms. Allocated memory is still 238.0 MB. Free memory was 167.0 MB in the beginning and 165.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 719.94 ms. Allocated memory is still 238.0 MB. Free memory was 165.5 MB in the beginning and 126.8 MB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4764.45 ms. Allocated memory was 238.0 MB in the beginning and 276.3 MB in the end (delta: 38.3 MB). Free memory was 126.8 MB in the beginning and 196.9 MB in the end (delta: -70.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.2s, 82 ProgramPointsBefore, 16 ProgramPointsAfterwards, 84 TransitionsBefore, 15 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 8 FixpointIterations, 65 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 7 ConcurrentYvCompositions, 4 ChoiceCompositions, 203 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 291 CheckedPairsTotal, 100 TotalNumberOfCompositions - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 4 error locations. Result: SAFE, OverallTime: 4.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...