/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:55:16,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:55:16,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:55:16,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:55:16,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:55:16,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:55:16,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:55:16,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:55:16,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:55:16,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:55:16,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:55:16,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:55:16,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:55:16,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:55:16,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:55:16,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:55:16,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:55:16,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:55:16,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:55:16,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:55:16,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:55:16,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:55:16,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:55:16,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:55:16,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:55:16,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:55:16,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:55:16,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:55:16,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:55:16,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:55:16,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:55:16,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:55:16,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:55:16,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:55:16,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:55:16,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:55:16,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:55:16,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:55:16,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:55:16,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:55:16,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:55:16,216 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-SemanticLbe.epf [2019-12-18 18:55:16,248 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:55:16,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:55:16,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:55:16,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:55:16,253 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:55:16,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:55:16,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:55:16,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:55:16,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:55:16,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:55:16,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:55:16,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:55:16,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:55:16,257 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:55:16,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:55:16,258 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:55:16,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:55:16,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:55:16,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:55:16,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:55:16,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:55:16,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:55:16,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:55:16,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:55:16,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:55:16,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:55:16,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:55:16,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:55:16,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:55:16,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:55:16,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:55:16,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:55:16,594 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:55:16,594 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:55:16,595 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2019-12-18 18:55:16,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c56c889b7/bd4d18f560f84542a2fffac50ed90a74/FLAG184877fae [2019-12-18 18:55:17,193 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:55:17,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.oepc.i [2019-12-18 18:55:17,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c56c889b7/bd4d18f560f84542a2fffac50ed90a74/FLAG184877fae [2019-12-18 18:55:17,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c56c889b7/bd4d18f560f84542a2fffac50ed90a74 [2019-12-18 18:55:17,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:55:17,516 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:55:17,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:55:17,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:55:17,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:55:17,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:55:17" (1/1) ... [2019-12-18 18:55:17,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53489eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:17, skipping insertion in model container [2019-12-18 18:55:17,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:55:17" (1/1) ... [2019-12-18 18:55:17,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:55:17,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:55:18,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:55:18,238 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:55:18,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:55:18,379 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:55:18,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18 WrapperNode [2019-12-18 18:55:18,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:55:18,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:55:18,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:55:18,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:55:18,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (1/1) ... [2019-12-18 18:55:18,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (1/1) ... [2019-12-18 18:55:18,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:55:18,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:55:18,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:55:18,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:55:18,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (1/1) ... [2019-12-18 18:55:18,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (1/1) ... [2019-12-18 18:55:18,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (1/1) ... [2019-12-18 18:55:18,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (1/1) ... [2019-12-18 18:55:18,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (1/1) ... [2019-12-18 18:55:18,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (1/1) ... [2019-12-18 18:55:18,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (1/1) ... [2019-12-18 18:55:18,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:55:18,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:55:18,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:55:18,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:55:18,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (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 18:55:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:55:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:55:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:55:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:55:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:55:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:55:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:55:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:55:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:55:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:55:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:55:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:55:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:55:18,532 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 18:55:18,877 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:55:18,878 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:55:18,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:55:18 BoogieIcfgContainer [2019-12-18 18:55:18,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:55:18,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:55:18,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:55:18,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:55:18,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:55:17" (1/3) ... [2019-12-18 18:55:18,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74558c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:55:18, skipping insertion in model container [2019-12-18 18:55:18,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:55:18" (2/3) ... [2019-12-18 18:55:18,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74558c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:55:18, skipping insertion in model container [2019-12-18 18:55:18,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:55:18" (3/3) ... [2019-12-18 18:55:18,888 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2019-12-18 18:55:18,898 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:55:18,898 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:55:18,906 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:55:18,907 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:55:18,940 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,941 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,941 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,941 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,942 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,942 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,943 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,943 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,943 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,943 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,944 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,944 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,944 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,945 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,945 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,945 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,945 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,946 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,949 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,950 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,950 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,950 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,956 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,957 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,957 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,957 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,960 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,960 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,961 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,961 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:55:18,977 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:55:18,999 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:55:18,999 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:55:18,999 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:55:18,999 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:55:18,999 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:55:19,000 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:55:19,000 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:55:19,000 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:55:19,016 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-18 18:55:19,019 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 18:55:19,081 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 18:55:19,081 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:55:19,088 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:55:19,091 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-18 18:55:19,112 INFO L126 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-18 18:55:19,112 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:55:19,113 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:55:19,115 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:55:19,117 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:55:20,537 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-18 18:55:20,683 INFO L206 etLargeBlockEncoding]: Checked pairs total: 411 [2019-12-18 18:55:20,683 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 18:55:20,687 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 18:55:20,697 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 18:55:20,699 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 18:55:20,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:55:20,705 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:55:20,706 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:55:20,707 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:55:20,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:55:20,713 INFO L82 PathProgramCache]: Analyzing trace with hash 942939300, now seen corresponding path program 1 times [2019-12-18 18:55:20,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:55:20,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836165545] [2019-12-18 18:55:20,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:55:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:55:20,932 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 18:55:20,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836165545] [2019-12-18 18:55:20,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:55:20,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:55:20,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750552483] [2019-12-18 18:55:20,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:55:20,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:55:20,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:55:20,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:55:20,959 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 18:55:20,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:55:20,988 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 18:55:20,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:55:20,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:55:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:55:21,002 INFO L225 Difference]: With dead ends: 42 [2019-12-18 18:55:21,002 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 18:55:21,004 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:55:21,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 18:55:21,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 18:55:21,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:55:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 18:55:21,044 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 18:55:21,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:55:21,045 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 18:55:21,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:55:21,045 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 18:55:21,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:55:21,046 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:55:21,046 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:55:21,047 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:55:21,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:55:21,047 INFO L82 PathProgramCache]: Analyzing trace with hash -833593397, now seen corresponding path program 1 times [2019-12-18 18:55:21,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:55:21,048 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586261403] [2019-12-18 18:55:21,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:55:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:55:21,133 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 18:55:21,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586261403] [2019-12-18 18:55:21,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:55:21,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:55:21,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009838367] [2019-12-18 18:55:21,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:55:21,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:55:21,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:55:21,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:55:21,138 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 18:55:21,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:55:21,164 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 18:55:21,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:55:21,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 18:55:21,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:55:21,166 INFO L225 Difference]: With dead ends: 36 [2019-12-18 18:55:21,166 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 18:55:21,168 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:55:21,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 18:55:21,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 18:55:21,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 18:55:21,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 18:55:21,174 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 18:55:21,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:55:21,175 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 18:55:21,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:55:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 18:55:21,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:55:21,176 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:55:21,176 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:55:21,176 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:55:21,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:55:21,177 INFO L82 PathProgramCache]: Analyzing trace with hash -73433913, now seen corresponding path program 1 times [2019-12-18 18:55:21,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:55:21,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210354050] [2019-12-18 18:55:21,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:55:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:55:21,355 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 18:55:21,355 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210354050] [2019-12-18 18:55:21,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:55:21,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:55:21,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290269115] [2019-12-18 18:55:21,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 18:55:21,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:55:21,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 18:55:21,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:55:21,357 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 5 states. [2019-12-18 18:55:21,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:55:21,403 INFO L93 Difference]: Finished difference Result 31 states and 49 transitions. [2019-12-18 18:55:21,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 18:55:21,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-18 18:55:21,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:55:21,405 INFO L225 Difference]: With dead ends: 31 [2019-12-18 18:55:21,405 INFO L226 Difference]: Without dead ends: 25 [2019-12-18 18:55:21,406 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-18 18:55:21,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-18 18:55:21,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-18 18:55:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-18 18:55:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 39 transitions. [2019-12-18 18:55:21,412 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 39 transitions. Word has length 10 [2019-12-18 18:55:21,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:55:21,412 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 39 transitions. [2019-12-18 18:55:21,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 18:55:21,413 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 39 transitions. [2019-12-18 18:55:21,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:55:21,413 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:55:21,413 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:55:21,415 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:55:21,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:55:21,415 INFO L82 PathProgramCache]: Analyzing trace with hash -71442783, now seen corresponding path program 2 times [2019-12-18 18:55:21,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:55:21,417 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212824458] [2019-12-18 18:55:21,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:55:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:55:21,544 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 18:55:21,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212824458] [2019-12-18 18:55:21,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:55:21,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 18:55:21,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767199062] [2019-12-18 18:55:21,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 18:55:21,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:55:21,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 18:55:21,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 18:55:21,546 INFO L87 Difference]: Start difference. First operand 25 states and 39 transitions. Second operand 6 states. [2019-12-18 18:55:21,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:55:21,630 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2019-12-18 18:55:21,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 18:55:21,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 18:55:21,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:55:21,631 INFO L225 Difference]: With dead ends: 25 [2019-12-18 18:55:21,631 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 18:55:21,632 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-18 18:55:21,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 18:55:21,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 18:55:21,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 18:55:21,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 18:55:21,640 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 10 [2019-12-18 18:55:21,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:55:21,641 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 18:55:21,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 18:55:21,641 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 18:55:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:55:21,641 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:55:21,642 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:55:21,642 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:55:21,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:55:21,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1121373691, now seen corresponding path program 1 times [2019-12-18 18:55:21,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:55:21,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441179954] [2019-12-18 18:55:21,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:55:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:55:21,719 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 18:55:21,719 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441179954] [2019-12-18 18:55:21,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:55:21,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:55:21,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955267111] [2019-12-18 18:55:21,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:55:21,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:55:21,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:55:21,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:55:21,721 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 18:55:21,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:55:21,745 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2019-12-18 18:55:21,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:55:21,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 18:55:21,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:55:21,746 INFO L225 Difference]: With dead ends: 24 [2019-12-18 18:55:21,746 INFO L226 Difference]: Without dead ends: 14 [2019-12-18 18:55:21,747 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:55:21,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-18 18:55:21,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-18 18:55:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-18 18:55:21,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-18 18:55:21,751 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-18 18:55:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:55:21,751 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-18 18:55:21,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:55:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-18 18:55:21,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:55:21,752 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:55:21,752 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:55:21,753 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:55:21,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:55:21,758 INFO L82 PathProgramCache]: Analyzing trace with hash 2080305203, now seen corresponding path program 2 times [2019-12-18 18:55:21,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:55:21,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576522052] [2019-12-18 18:55:21,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:55:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:55:21,817 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 18:55:21,818 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576522052] [2019-12-18 18:55:21,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:55:21,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:55:21,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488840594] [2019-12-18 18:55:21,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:55:21,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:55:21,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:55:21,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:55:21,823 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-18 18:55:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:55:21,838 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-18 18:55:21,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:55:21,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 18:55:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:55:21,839 INFO L225 Difference]: With dead ends: 13 [2019-12-18 18:55:21,840 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:55:21,840 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 18:55:21,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:55:21,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:55:21,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:55:21,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:55:21,841 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:55:21,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:55:21,841 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:55:21,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:55:21,841 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:55:21,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:55:21,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:55:21 BasicIcfg [2019-12-18 18:55:21,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:55:21,853 INFO L168 Benchmark]: Toolchain (without parser) took 4335.66 ms. Allocated memory was 146.8 MB in the beginning and 244.3 MB in the end (delta: 97.5 MB). Free memory was 102.1 MB in the beginning and 101.5 MB in the end (delta: 691.1 kB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB. [2019-12-18 18:55:21,854 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-18 18:55:21,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 861.38 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 161.9 MB in the end (delta: -59.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-18 18:55:21,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.77 ms. Allocated memory is still 205.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:55:21,862 INFO L168 Benchmark]: Boogie Preprocessor took 25.19 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:55:21,863 INFO L168 Benchmark]: RCFGBuilder took 424.15 ms. Allocated memory is still 205.0 MB. Free memory was 158.0 MB in the beginning and 138.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:55:21,864 INFO L168 Benchmark]: TraceAbstraction took 2968.73 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 137.4 MB in the beginning and 101.5 MB in the end (delta: 35.9 MB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. [2019-12-18 18:55:21,873 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 861.38 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.9 MB in the beginning and 161.9 MB in the end (delta: -59.9 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.77 ms. Allocated memory is still 205.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.19 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 424.15 ms. Allocated memory is still 205.0 MB. Free memory was 158.0 MB in the beginning and 138.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2968.73 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 137.4 MB in the beginning and 101.5 MB in the end (delta: 35.9 MB). Peak memory consumption was 75.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 236 VarBasedMoverChecksPositive, 10 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 411 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 57 SDslu, 61 SDs, 0 SdLazy, 50 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...