/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/safe000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 13:12:46,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 13:12:46,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 13:12:46,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 13:12:46,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 13:12:46,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 13:12:46,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 13:12:46,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 13:12:46,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 13:12:46,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 13:12:46,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 13:12:46,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 13:12:46,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 13:12:46,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 13:12:46,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 13:12:46,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 13:12:46,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 13:12:46,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 13:12:46,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 13:12:46,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 13:12:46,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 13:12:46,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 13:12:46,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 13:12:46,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 13:12:46,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 13:12:46,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 13:12:46,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 13:12:46,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 13:12:46,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 13:12:46,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 13:12:46,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 13:12:46,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 13:12:46,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 13:12:46,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 13:12:46,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 13:12:46,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 13:12:46,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 13:12:46,224 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 13:12:46,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 13:12:46,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 13:12:46,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 13:12:46,227 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 13:12:46,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 13:12:46,227 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 13:12:46,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 13:12:46,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 13:12:46,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 13:12:46,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 13:12:46,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 13:12:46,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 13:12:46,229 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 13:12:46,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 13:12:46,229 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 13:12:46,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 13:12:46,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 13:12:46,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 13:12:46,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 13:12:46,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 13:12:46,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:12:46,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 13:12:46,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 13:12:46,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 13:12:46,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 13:12:46,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 13:12:46,231 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 13:12:46,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 13:12:46,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 13:12:46,518 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 13:12:46,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 13:12:46,536 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 13:12:46,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 13:12:46,538 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 13:12:46,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2019-12-27 13:12:46,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c57f7221b/feb8f4781d964be9939b74f370f1eddf/FLAG65b755ffb [2019-12-27 13:12:47,139 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 13:12:47,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2019-12-27 13:12:47,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c57f7221b/feb8f4781d964be9939b74f370f1eddf/FLAG65b755ffb [2019-12-27 13:12:47,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c57f7221b/feb8f4781d964be9939b74f370f1eddf [2019-12-27 13:12:47,439 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 13:12:47,441 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 13:12:47,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 13:12:47,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 13:12:47,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 13:12:47,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:12:47" (1/1) ... [2019-12-27 13:12:47,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c11641a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:47, skipping insertion in model container [2019-12-27 13:12:47,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:12:47" (1/1) ... [2019-12-27 13:12:47,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 13:12:47,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 13:12:47,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:12:47,981 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 13:12:48,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:12:48,115 INFO L208 MainTranslator]: Completed translation [2019-12-27 13:12:48,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48 WrapperNode [2019-12-27 13:12:48,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 13:12:48,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 13:12:48,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 13:12:48,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 13:12:48,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... [2019-12-27 13:12:48,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... [2019-12-27 13:12:48,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 13:12:48,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 13:12:48,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 13:12:48,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 13:12:48,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... [2019-12-27 13:12:48,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... [2019-12-27 13:12:48,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... [2019-12-27 13:12:48,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... [2019-12-27 13:12:48,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... [2019-12-27 13:12:48,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... [2019-12-27 13:12:48,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... [2019-12-27 13:12:48,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 13:12:48,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 13:12:48,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 13:12:48,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 13:12:48,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 13:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 13:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 13:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 13:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 13:12:48,267 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 13:12:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 13:12:48,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 13:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 13:12:48,268 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 13:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 13:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 13:12:48,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 13:12:48,270 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 13:12:48,634 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 13:12:48,634 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 13:12:48,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:12:48 BoogieIcfgContainer [2019-12-27 13:12:48,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 13:12:48,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 13:12:48,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 13:12:48,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 13:12:48,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 01:12:47" (1/3) ... [2019-12-27 13:12:48,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e37a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:12:48, skipping insertion in model container [2019-12-27 13:12:48,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:12:48" (2/3) ... [2019-12-27 13:12:48,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e37a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:12:48, skipping insertion in model container [2019-12-27 13:12:48,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:12:48" (3/3) ... [2019-12-27 13:12:48,644 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt.i [2019-12-27 13:12:48,655 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 13:12:48,655 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 13:12:48,663 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 13:12:48,664 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 13:12:48,693 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,694 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,694 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,694 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,695 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,695 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,696 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,696 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,696 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,696 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,697 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,697 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,698 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,698 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,699 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,699 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,699 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,700 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,704 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,705 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,705 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,705 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,716 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,717 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,717 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,718 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,724 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,725 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,725 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,725 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:12:48,742 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 13:12:48,759 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 13:12:48,759 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 13:12:48,759 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 13:12:48,760 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 13:12:48,760 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 13:12:48,760 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 13:12:48,760 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 13:12:48,760 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 13:12:48,773 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-27 13:12:48,850 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-27 13:12:48,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-27 13:12:48,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 13:12:48,869 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:12:48,870 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] [2019-12-27 13:12:48,871 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:12:48,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:12:48,877 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-27 13:12:48,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:12:48,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101689833] [2019-12-27 13:12:48,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:12:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:12:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:12:49,323 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101689833] [2019-12-27 13:12:49,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:12:49,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 13:12:49,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831119274] [2019-12-27 13:12:49,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 13:12:49,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:12:49,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 13:12:49,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 13:12:49,351 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-27 13:12:49,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:12:49,492 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-27 13:12:49,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 13:12:49,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-27 13:12:49,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:12:49,534 INFO L225 Difference]: With dead ends: 1295 [2019-12-27 13:12:49,534 INFO L226 Difference]: Without dead ends: 601 [2019-12-27 13:12:49,536 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 [2019-12-27 13:12:49,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-27 13:12:49,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-27 13:12:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-27 13:12:49,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-27 13:12:49,704 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-27 13:12:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:12:49,704 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-27 13:12:49,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 13:12:49,705 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-27 13:12:49,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 13:12:49,713 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:12:49,713 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] [2019-12-27 13:12:49,714 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:12:49,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:12:49,715 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-27 13:12:49,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:12:49,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637768126] [2019-12-27 13:12:49,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:12:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:12:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:12:49,865 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637768126] [2019-12-27 13:12:49,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:12:49,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 13:12:49,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121867575] [2019-12-27 13:12:49,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 13:12:49,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:12:49,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 13:12:49,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 13:12:49,868 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-27 13:12:49,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:12:49,943 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-27 13:12:49,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 13:12:49,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-27 13:12:49,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:12:49,949 INFO L225 Difference]: With dead ends: 601 [2019-12-27 13:12:49,949 INFO L226 Difference]: Without dead ends: 538 [2019-12-27 13:12:49,950 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 [2019-12-27 13:12:49,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-27 13:12:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-27 13:12:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-27 13:12:49,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-27 13:12:49,978 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-27 13:12:49,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:12:49,978 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-27 13:12:49,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 13:12:49,978 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-27 13:12:49,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 13:12:49,980 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:12:49,980 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] [2019-12-27 13:12:49,981 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:12:49,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:12:49,981 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-27 13:12:49,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:12:49,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475326200] [2019-12-27 13:12:49,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:12:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:12:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:12:50,133 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475326200] [2019-12-27 13:12:50,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:12:50,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 13:12:50,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223410240] [2019-12-27 13:12:50,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 13:12:50,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:12:50,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 13:12:50,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 13:12:50,136 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-27 13:12:50,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:12:50,220 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-27 13:12:50,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:12:50,221 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-27 13:12:50,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:12:50,224 INFO L225 Difference]: With dead ends: 403 [2019-12-27 13:12:50,224 INFO L226 Difference]: Without dead ends: 349 [2019-12-27 13:12:50,224 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 [2019-12-27 13:12:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-27 13:12:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-27 13:12:50,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-27 13:12:50,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-27 13:12:50,238 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-27 13:12:50,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:12:50,238 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-27 13:12:50,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 13:12:50,239 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-27 13:12:50,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:12:50,240 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:12:50,240 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] [2019-12-27 13:12:50,241 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:12:50,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:12:50,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-27 13:12:50,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:12:50,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804548140] [2019-12-27 13:12:50,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:12:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:12:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:12:50,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804548140] [2019-12-27 13:12:50,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:12:50,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:12:50,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471748834] [2019-12-27 13:12:50,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:12:50,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:12:50,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:12:50,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:12:50,408 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-27 13:12:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:12:50,632 INFO L93 Difference]: Finished difference Result 718 states and 1938 transitions. [2019-12-27 13:12:50,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-27 13:12:50,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 13:12:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:12:50,637 INFO L225 Difference]: With dead ends: 718 [2019-12-27 13:12:50,637 INFO L226 Difference]: Without dead ends: 313 [2019-12-27 13:12:50,638 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-12-27 13:12:50,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-27 13:12:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-27 13:12:50,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-27 13:12:50,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-27 13:12:50,654 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-27 13:12:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:12:50,655 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-27 13:12:50,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:12:50,655 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-27 13:12:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:12:50,657 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:12:50,657 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] [2019-12-27 13:12:50,658 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:12:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:12:50,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1476702554, now seen corresponding path program 2 times [2019-12-27 13:12:50,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:12:50,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61113960] [2019-12-27 13:12:50,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:12:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:12:50,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 13:12:50,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61113960] [2019-12-27 13:12:50,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:12:50,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 13:12:50,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788843924] [2019-12-27 13:12:50,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 13:12:50,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:12:50,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 13:12:50,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:12:50,818 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 7 states. [2019-12-27 13:12:50,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:12:50,921 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-27 13:12:50,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:12:50,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 13:12:50,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:12:50,922 INFO L225 Difference]: With dead ends: 259 [2019-12-27 13:12:50,922 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 13:12:50,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-27 13:12:50,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 13:12:50,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 13:12:50,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 13:12:50,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 13:12:50,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-27 13:12:50,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:12:50,924 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 13:12:50,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 13:12:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 13:12:50,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 13:12:50,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 01:12:50 BasicIcfg [2019-12-27 13:12:50,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 13:12:50,933 INFO L168 Benchmark]: Toolchain (without parser) took 3491.18 ms. Allocated memory was 142.1 MB in the beginning and 260.0 MB in the end (delta: 118.0 MB). Free memory was 98.3 MB in the beginning and 207.5 MB in the end (delta: -109.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-12-27 13:12:50,934 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-27 13:12:50,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.20 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 97.9 MB in the beginning and 156.2 MB in the end (delta: -58.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-27 13:12:50,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.90 ms. Allocated memory is still 199.8 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 13:12:50,936 INFO L168 Benchmark]: Boogie Preprocessor took 25.29 ms. Allocated memory is still 199.8 MB. Free memory was 154.1 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 13:12:50,937 INFO L168 Benchmark]: RCFGBuilder took 445.44 ms. Allocated memory is still 199.8 MB. Free memory was 152.7 MB in the beginning and 132.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 13:12:50,938 INFO L168 Benchmark]: TraceAbstraction took 2293.39 ms. Allocated memory was 199.8 MB in the beginning and 260.0 MB in the end (delta: 60.3 MB). Free memory was 131.9 MB in the beginning and 207.5 MB in the end (delta: -75.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 13:12:50,942 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 674.20 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 97.9 MB in the beginning and 156.2 MB in the end (delta: -58.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.90 ms. Allocated memory is still 199.8 MB. Free memory was 156.2 MB in the beginning and 154.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.29 ms. Allocated memory is still 199.8 MB. Free memory was 154.1 MB in the beginning and 152.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 445.44 ms. Allocated memory is still 199.8 MB. Free memory was 152.7 MB in the beginning and 132.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2293.39 ms. Allocated memory was 199.8 MB in the beginning and 260.0 MB in the end (delta: 60.3 MB). Free memory was 131.9 MB in the beginning and 207.5 MB in the end (delta: -75.6 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: 224 SDtfs, 366 SDslu, 585 SDs, 0 SdLazy, 89 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 15567 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...