/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:32:28,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:32:28,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:32:28,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:32:28,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:32:28,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:32:28,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:32:28,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:32:28,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:32:28,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:32:28,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:32:28,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:32:28,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:32:28,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:32:28,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:32:28,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:32:28,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:32:28,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:32:28,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:32:28,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:32:28,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:32:28,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:32:28,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:32:28,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:32:28,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:32:28,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:32:28,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:32:28,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:32:28,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:32:28,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:32:28,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:32:28,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:32:28,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:32:28,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:32:28,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:32:28,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:32:28,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:32:28,216 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:32:28,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:32:28,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:32:28,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:32:28,218 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:32:28,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:32:28,219 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:32:28,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:32:28,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:32:28,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:32:28,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:32:28,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:32:28,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:32:28,220 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:32:28,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:32:28,221 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:32:28,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:32:28,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:32:28,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:32:28,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:32:28,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:32:28,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:32:28,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:32:28,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:32:28,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:32:28,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:32:28,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:32:28,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:32:28,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:32:28,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:32:28,498 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:32:28,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:32:28,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:32:28,519 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:32:28,520 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:32:28,521 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2019-12-19 05:32:28,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c873b4ce/23310b442bb5468096ad21468be80781/FLAG3bf123530 [2019-12-19 05:32:29,119 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:32:29,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2019-12-19 05:32:29,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c873b4ce/23310b442bb5468096ad21468be80781/FLAG3bf123530 [2019-12-19 05:32:29,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c873b4ce/23310b442bb5468096ad21468be80781 [2019-12-19 05:32:29,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:32:29,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:32:29,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:32:29,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:32:29,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:32:29,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:32:29" (1/1) ... [2019-12-19 05:32:29,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65544a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:29, skipping insertion in model container [2019-12-19 05:32:29,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:32:29" (1/1) ... [2019-12-19 05:32:29,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:32:29,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:32:30,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:32:30,042 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:32:30,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:32:30,183 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:32:30,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30 WrapperNode [2019-12-19 05:32:30,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:32:30,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:32:30,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:32:30,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:32:30,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (1/1) ... [2019-12-19 05:32:30,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (1/1) ... [2019-12-19 05:32:30,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:32:30,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:32:30,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:32:30,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:32:30,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (1/1) ... [2019-12-19 05:32:30,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (1/1) ... [2019-12-19 05:32:30,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (1/1) ... [2019-12-19 05:32:30,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (1/1) ... [2019-12-19 05:32:30,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (1/1) ... [2019-12-19 05:32:30,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (1/1) ... [2019-12-19 05:32:30,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (1/1) ... [2019-12-19 05:32:30,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:32:30,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:32:30,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:32:30,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:32:30,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (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 [2019-12-19 05:32:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:32:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:32:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:32:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:32:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:32:30,331 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:32:30,332 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:32:30,333 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:32:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:32:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:32:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:32:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:32:30,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:32:30,336 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:32:30,691 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:32:30,692 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:32:30,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:32:30 BoogieIcfgContainer [2019-12-19 05:32:30,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:32:30,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:32:30,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:32:30,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:32:30,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:32:29" (1/3) ... [2019-12-19 05:32:30,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6e2ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:32:30, skipping insertion in model container [2019-12-19 05:32:30,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:32:30" (2/3) ... [2019-12-19 05:32:30,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a6e2ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:32:30, skipping insertion in model container [2019-12-19 05:32:30,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:32:30" (3/3) ... [2019-12-19 05:32:30,700 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2019-12-19 05:32:30,709 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:32:30,709 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:32:30,717 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:32:30,718 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:32:30,743 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,744 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,744 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,745 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,745 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,745 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,746 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,746 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,746 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,746 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,747 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,747 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,747 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,748 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,748 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,748 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,749 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,749 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,752 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,753 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,753 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,753 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,759 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,759 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,760 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,760 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,762 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,763 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,763 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,763 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:32:30,780 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:32:30,801 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:32:30,801 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:32:30,801 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:32:30,801 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:32:30,802 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:32:30,802 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:32:30,802 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:32:30,802 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:32:30,813 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 05:32:30,897 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 05:32:30,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 05:32:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:32:30,916 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:30,917 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:32:30,918 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:30,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:30,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1045891057, now seen corresponding path program 1 times [2019-12-19 05:32:30,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:30,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373114531] [2019-12-19 05:32:30,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:31,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:32:31,315 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373114531] [2019-12-19 05:32:31,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:31,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:32:31,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56690214] [2019-12-19 05:32:31,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:32:31,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:31,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:32:31,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:32:31,341 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 05:32:31,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:31,467 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 05:32:31,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:32:31,469 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 05:32:31,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:31,504 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 05:32:31,504 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 05:32:31,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:32:31,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 05:32:31,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 05:32:31,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 05:32:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 05:32:31,629 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 05:32:31,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:31,629 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 05:32:31,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:32:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 05:32:31,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:32:31,639 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:31,639 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:32:31,639 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:31,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:31,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1152838682, now seen corresponding path program 1 times [2019-12-19 05:32:31,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:31,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561666730] [2019-12-19 05:32:31,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:31,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:32:31,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561666730] [2019-12-19 05:32:31,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:31,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:32:31,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365904269] [2019-12-19 05:32:31,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:32:31,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:31,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:32:31,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:32:31,794 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 05:32:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:31,885 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 05:32:31,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:32:31,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 05:32:31,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:31,896 INFO L225 Difference]: With dead ends: 601 [2019-12-19 05:32:31,896 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 05:32:31,905 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:32:31,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 05:32:31,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 05:32:31,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 05:32:31,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 05:32:31,953 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 05:32:31,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:31,954 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 05:32:31,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:32:31,954 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 05:32:31,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:32:31,956 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:31,956 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:32:31,957 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:31,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:31,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1131850048, now seen corresponding path program 1 times [2019-12-19 05:32:31,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:31,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129524170] [2019-12-19 05:32:31,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:32:32,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129524170] [2019-12-19 05:32:32,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:32,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:32:32,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735668573] [2019-12-19 05:32:32,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:32:32,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:32,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:32:32,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:32:32,088 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 05:32:32,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:32,183 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 05:32:32,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:32:32,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 05:32:32,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:32,187 INFO L225 Difference]: With dead ends: 403 [2019-12-19 05:32:32,187 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 05:32:32,188 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:32:32,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 05:32:32,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 05:32:32,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 05:32:32,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 05:32:32,203 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 05:32:32,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:32,204 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 05:32:32,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:32:32,204 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 05:32:32,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:32:32,208 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:32,208 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:32:32,208 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:32,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:32,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1370796524, now seen corresponding path program 1 times [2019-12-19 05:32:32,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:32,210 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123433952] [2019-12-19 05:32:32,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:32:32,390 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123433952] [2019-12-19 05:32:32,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:32,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:32:32,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678274325] [2019-12-19 05:32:32,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:32:32,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:32,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:32:32,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:32:32,394 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 05:32:32,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:32,571 INFO L93 Difference]: Finished difference Result 574 states and 1521 transitions. [2019-12-19 05:32:32,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:32:32,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:32:32,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:32,575 INFO L225 Difference]: With dead ends: 574 [2019-12-19 05:32:32,575 INFO L226 Difference]: Without dead ends: 289 [2019-12-19 05:32:32,577 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:32:32,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2019-12-19 05:32:32,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 280. [2019-12-19 05:32:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-19 05:32:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-19 05:32:32,591 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-19 05:32:32,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:32,591 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-19 05:32:32,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:32:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-19 05:32:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:32:32,592 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:32:32,593 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:32:32,593 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:32:32,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:32:32,593 INFO L82 PathProgramCache]: Analyzing trace with hash 332629140, now seen corresponding path program 2 times [2019-12-19 05:32:32,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:32:32,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649342514] [2019-12-19 05:32:32,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:32:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:32:32,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:32:32,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649342514] [2019-12-19 05:32:32,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:32:32,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:32:32,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240110786] [2019-12-19 05:32:32,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:32:32,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:32:32,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:32:32,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:32:32,819 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 7 states. [2019-12-19 05:32:32,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:32:32,953 INFO L93 Difference]: Finished difference Result 235 states and 585 transitions. [2019-12-19 05:32:32,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:32:32,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 05:32:32,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:32:32,954 INFO L225 Difference]: With dead ends: 235 [2019-12-19 05:32:32,954 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:32:32,954 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:32:32,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:32:32,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:32:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:32:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:32:32,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 05:32:32,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:32:32,956 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:32:32,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:32:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:32:32,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:32:32,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:32:32 BasicIcfg [2019-12-19 05:32:32,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:32:32,964 INFO L168 Benchmark]: Toolchain (without parser) took 3558.58 ms. Allocated memory was 146.3 MB in the beginning and 247.5 MB in the end (delta: 101.2 MB). Free memory was 102.8 MB in the beginning and 190.2 MB in the end (delta: -87.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:32,965 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 05:32:32,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.69 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 160.1 MB in the end (delta: -57.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:32,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.19 ms. Allocated memory is still 203.4 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:32,968 INFO L168 Benchmark]: Boogie Preprocessor took 24.08 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:32,969 INFO L168 Benchmark]: RCFGBuilder took 427.31 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 136.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:32:32,969 INFO L168 Benchmark]: TraceAbstraction took 2267.49 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 135.6 MB in the beginning and 190.2 MB in the end (delta: -54.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 05:32:32,975 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.69 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.3 MB in the beginning and 160.1 MB in the end (delta: -57.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.19 ms. Allocated memory is still 203.4 MB. Free memory was 160.1 MB in the beginning and 158.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.08 ms. Allocated memory is still 203.4 MB. Free memory was 158.1 MB in the beginning and 156.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 427.31 ms. Allocated memory is still 203.4 MB. Free memory was 156.8 MB in the beginning and 136.2 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2267.49 ms. Allocated memory was 203.4 MB in the beginning and 247.5 MB in the end (delta: 44.0 MB). Free memory was 135.6 MB in the beginning and 190.2 MB in the end (delta: -54.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 246 SDtfs, 328 SDslu, 613 SDs, 0 SdLazy, 92 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 14313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...