/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/safe035_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 19:10:11,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 19:10:11,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 19:10:11,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 19:10:11,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 19:10:11,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 19:10:11,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 19:10:11,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 19:10:11,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 19:10:11,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 19:10:11,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 19:10:11,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 19:10:11,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 19:10:11,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 19:10:11,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 19:10:11,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 19:10:11,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 19:10:11,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 19:10:11,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 19:10:11,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 19:10:11,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 19:10:11,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 19:10:11,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 19:10:11,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 19:10:11,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 19:10:11,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 19:10:11,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 19:10:11,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 19:10:11,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 19:10:11,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 19:10:11,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 19:10:11,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 19:10:11,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 19:10:11,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 19:10:11,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 19:10:11,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 19:10:11,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 19:10:11,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 19:10:11,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 19:10:11,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 19:10:11,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 19:10:11,295 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 19:10:11,328 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 19:10:11,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 19:10:11,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 19:10:11,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 19:10:11,330 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 19:10:11,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 19:10:11,331 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 19:10:11,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 19:10:11,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 19:10:11,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 19:10:11,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 19:10:11,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 19:10:11,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 19:10:11,333 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 19:10:11,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 19:10:11,334 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 19:10:11,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 19:10:11,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 19:10:11,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 19:10:11,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 19:10:11,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 19:10:11,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 19:10:11,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 19:10:11,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 19:10:11,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 19:10:11,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 19:10:11,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 19:10:11,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 19:10:11,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 19:10:11,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 19:10:11,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 19:10:11,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 19:10:11,617 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 19:10:11,617 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 19:10:11,618 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2019-12-18 19:10:11,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0374eb984/db68a969fa1e4d7b88ea58f9b17f3d7f/FLAGdd64d97d8 [2019-12-18 19:10:12,256 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 19:10:12,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_pso.oepc.i [2019-12-18 19:10:12,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0374eb984/db68a969fa1e4d7b88ea58f9b17f3d7f/FLAGdd64d97d8 [2019-12-18 19:10:12,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0374eb984/db68a969fa1e4d7b88ea58f9b17f3d7f [2019-12-18 19:10:12,596 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 19:10:12,597 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 19:10:12,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 19:10:12,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 19:10:12,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 19:10:12,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:10:12" (1/1) ... [2019-12-18 19:10:12,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd6765e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:12, skipping insertion in model container [2019-12-18 19:10:12,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:10:12" (1/1) ... [2019-12-18 19:10:12,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 19:10:12,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 19:10:13,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:10:13,137 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 19:10:13,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 19:10:13,293 INFO L208 MainTranslator]: Completed translation [2019-12-18 19:10:13,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13 WrapperNode [2019-12-18 19:10:13,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 19:10:13,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 19:10:13,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 19:10:13,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 19:10:13,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (1/1) ... [2019-12-18 19:10:13,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (1/1) ... [2019-12-18 19:10:13,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 19:10:13,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 19:10:13,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 19:10:13,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 19:10:13,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (1/1) ... [2019-12-18 19:10:13,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (1/1) ... [2019-12-18 19:10:13,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (1/1) ... [2019-12-18 19:10:13,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (1/1) ... [2019-12-18 19:10:13,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (1/1) ... [2019-12-18 19:10:13,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (1/1) ... [2019-12-18 19:10:13,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (1/1) ... [2019-12-18 19:10:13,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 19:10:13,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 19:10:13,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 19:10:13,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 19:10:13,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (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 19:10:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 19:10:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 19:10:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 19:10:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 19:10:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 19:10:13,449 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 19:10:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 19:10:13,449 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 19:10:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 19:10:13,450 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 19:10:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 19:10:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 19:10:13,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 19:10:13,452 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 19:10:13,821 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 19:10:13,821 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 19:10:13,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:10:13 BoogieIcfgContainer [2019-12-18 19:10:13,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 19:10:13,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 19:10:13,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 19:10:13,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 19:10:13,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:10:12" (1/3) ... [2019-12-18 19:10:13,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619f7dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:10:13, skipping insertion in model container [2019-12-18 19:10:13,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:10:13" (2/3) ... [2019-12-18 19:10:13,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619f7dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:10:13, skipping insertion in model container [2019-12-18 19:10:13,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:10:13" (3/3) ... [2019-12-18 19:10:13,831 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_pso.oepc.i [2019-12-18 19:10:13,841 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 19:10:13,842 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 19:10:13,848 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 19:10:13,849 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 19:10:13,878 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,878 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,878 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,879 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,879 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,879 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,880 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,880 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,880 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,881 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,881 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,881 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,882 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,882 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,882 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,882 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,883 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,883 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,887 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,887 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,888 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,888 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,894 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,894 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,894 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,895 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,899 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,899 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,900 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,900 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 19:10:13,917 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 19:10:13,937 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 19:10:13,937 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 19:10:13,938 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 19:10:13,938 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 19:10:13,938 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 19:10:13,938 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 19:10:13,938 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 19:10:13,938 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 19:10:13,953 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 19:10:13,955 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 19:10:13,998 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 19:10:13,998 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:10:14,006 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:10:14,009 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 19:10:14,030 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 19:10:14,030 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 19:10:14,031 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 19:10:14,035 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 19:10:14,037 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 19:10:15,714 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-12-18 19:10:15,714 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-18 19:10:15,718 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 19:10:15,728 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 19:10:15,730 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 19:10:15,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 19:10:15,736 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:15,737 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:15,738 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:15,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:15,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-12-18 19:10:15,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:15,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495830455] [2019-12-18 19:10:15,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:16,072 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 19:10:16,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495830455] [2019-12-18 19:10:16,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:16,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 19:10:16,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058184060] [2019-12-18 19:10:16,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:10:16,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:16,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:10:16,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:10:16,091 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 19:10:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:16,148 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 19:10:16,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:10:16,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 19:10:16,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:16,182 INFO L225 Difference]: With dead ends: 42 [2019-12-18 19:10:16,182 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 19:10:16,185 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 19:10:16,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 19:10:16,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 19:10:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 19:10:16,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 19:10:16,234 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 19:10:16,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:16,235 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 19:10:16,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:10:16,236 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 19:10:16,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 19:10:16,238 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:16,238 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:16,238 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:16,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:16,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1866511351, now seen corresponding path program 1 times [2019-12-18 19:10:16,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:16,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98205738] [2019-12-18 19:10:16,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:16,305 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 19:10:16,307 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98205738] [2019-12-18 19:10:16,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:16,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 19:10:16,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431634116] [2019-12-18 19:10:16,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 19:10:16,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:16,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 19:10:16,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 19:10:16,309 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 19:10:16,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:16,354 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 19:10:16,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 19:10:16,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 19:10:16,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:16,355 INFO L225 Difference]: With dead ends: 36 [2019-12-18 19:10:16,355 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 19:10:16,356 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:10:16,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 19:10:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 19:10:16,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 19:10:16,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 19:10:16,360 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 19:10:16,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:16,360 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 19:10:16,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 19:10:16,361 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 19:10:16,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:10:16,361 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:16,361 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:16,361 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:16,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:16,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2027276793, now seen corresponding path program 1 times [2019-12-18 19:10:16,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:16,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285746007] [2019-12-18 19:10:16,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:16,529 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 19:10:16,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285746007] [2019-12-18 19:10:16,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:16,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:10:16,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279452821] [2019-12-18 19:10:16,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 19:10:16,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:16,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 19:10:16,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 19:10:16,532 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2019-12-18 19:10:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:16,589 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 19:10:16,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 19:10:16,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-18 19:10:16,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:16,591 INFO L225 Difference]: With dead ends: 25 [2019-12-18 19:10:16,591 INFO L226 Difference]: Without dead ends: 19 [2019-12-18 19:10:16,592 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 19:10:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-18 19:10:16,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-18 19:10:16,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-18 19:10:16,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-18 19:10:16,596 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-18 19:10:16,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:16,596 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-18 19:10:16,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 19:10:16,597 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-18 19:10:16,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 19:10:16,597 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:16,597 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:16,598 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:16,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:16,598 INFO L82 PathProgramCache]: Analyzing trace with hash 2029948683, now seen corresponding path program 2 times [2019-12-18 19:10:16,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:16,599 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786088219] [2019-12-18 19:10:16,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:16,689 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 19:10:16,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786088219] [2019-12-18 19:10:16,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:16,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 19:10:16,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494897881] [2019-12-18 19:10:16,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-18 19:10:16,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:16,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-18 19:10:16,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-18 19:10:16,695 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2019-12-18 19:10:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:16,772 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-18 19:10:16,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-18 19:10:16,773 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-18 19:10:16,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:16,773 INFO L225 Difference]: With dead ends: 19 [2019-12-18 19:10:16,774 INFO L226 Difference]: Without dead ends: 16 [2019-12-18 19:10:16,775 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 19:10:16,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-18 19:10:16,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-18 19:10:16,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-18 19:10:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-18 19:10:16,778 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-18 19:10:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:16,778 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-18 19:10:16,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-18 19:10:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-18 19:10:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:10:16,778 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:16,779 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:16,779 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:16,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-12-18 19:10:16,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:16,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424735215] [2019-12-18 19:10:16,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:16,816 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 19:10:16,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424735215] [2019-12-18 19:10:16,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:16,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:10:16,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610068477] [2019-12-18 19:10:16,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:10:16,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:16,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:10:16,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:10:16,819 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-18 19:10:16,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:16,834 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-18 19:10:16,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:10:16,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 19:10:16,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:16,835 INFO L225 Difference]: With dead ends: 18 [2019-12-18 19:10:16,835 INFO L226 Difference]: Without dead ends: 12 [2019-12-18 19:10:16,836 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 19:10:16,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-18 19:10:16,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-18 19:10:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-18 19:10:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-18 19:10:16,838 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-18 19:10:16,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:16,839 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-18 19:10:16,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:10:16,839 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-18 19:10:16,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 19:10:16,839 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 19:10:16,839 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 19:10:16,840 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 19:10:16,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 19:10:16,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1496019473, now seen corresponding path program 2 times [2019-12-18 19:10:16,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 19:10:16,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738781788] [2019-12-18 19:10:16,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 19:10:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 19:10:16,875 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 19:10:16,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738781788] [2019-12-18 19:10:16,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 19:10:16,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 19:10:16,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847739076] [2019-12-18 19:10:16,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 19:10:16,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 19:10:16,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 19:10:16,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 19:10:16,877 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-18 19:10:16,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 19:10:16,891 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-18 19:10:16,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 19:10:16,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 19:10:16,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 19:10:16,892 INFO L225 Difference]: With dead ends: 11 [2019-12-18 19:10:16,892 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 19:10:16,892 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 19:10:16,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 19:10:16,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 19:10:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 19:10:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 19:10:16,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 19:10:16,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 19:10:16,894 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 19:10:16,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 19:10:16,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 19:10:16,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 19:10:16,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:10:16 BasicIcfg [2019-12-18 19:10:16,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 19:10:16,901 INFO L168 Benchmark]: Toolchain (without parser) took 4303.25 ms. Allocated memory was 146.3 MB in the beginning and 245.4 MB in the end (delta: 99.1 MB). Free memory was 101.2 MB in the beginning and 104.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 95.5 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:16,902 INFO L168 Benchmark]: CDTParser took 3.29 ms. Allocated memory is still 146.3 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 19:10:16,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.96 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.0 MB in the beginning and 161.5 MB in the end (delta: -60.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:16,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.76 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 158.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:16,905 INFO L168 Benchmark]: Boogie Preprocessor took 28.50 ms. Allocated memory is still 204.5 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:16,906 INFO L168 Benchmark]: RCFGBuilder took 444.67 ms. Allocated memory is still 204.5 MB. Free memory was 157.6 MB in the beginning and 137.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:16,907 INFO L168 Benchmark]: TraceAbstraction took 3074.88 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 136.9 MB in the beginning and 104.7 MB in the end (delta: 32.2 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2019-12-18 19:10:16,911 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.29 ms. Allocated memory is still 146.3 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.96 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.0 MB in the beginning and 161.5 MB in the end (delta: -60.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.76 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 158.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.50 ms. Allocated memory is still 204.5 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 444.67 ms. Allocated memory is still 204.5 MB. Free memory was 157.6 MB in the beginning and 137.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3074.88 ms. Allocated memory was 204.5 MB in the beginning and 245.4 MB in the end (delta: 40.9 MB). Free memory was 136.9 MB in the beginning and 104.7 MB in the end (delta: 32.2 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 35 SDslu, 48 SDs, 0 SdLazy, 52 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s 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, 1314 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...