/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-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:22:15,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:22:15,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:22:15,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:22:15,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:22:15,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:22:15,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:22:15,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:22:15,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:22:15,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:22:15,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:22:15,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:22:15,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:22:15,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:22:15,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:22:15,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:22:15,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:22:15,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:22:15,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:22:15,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:22:15,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:22:15,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:22:15,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:22:15,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:22:15,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:22:15,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:22:15,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:22:15,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:22:15,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:22:15,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:22:15,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:22:15,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:22:15,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:22:15,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:22:15,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:22:15,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:22:15,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:22:15,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:22:15,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:22:15,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:22:15,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:22:15,293 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-McrStrategy.epf [2020-04-18 19:22:15,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:22:15,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:22:15,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:22:15,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:22:15,331 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:22:15,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:22:15,332 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:22:15,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:22:15,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:22:15,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:22:15,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:22:15,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:22:15,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:22:15,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:22:15,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:22:15,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:22:15,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:22:15,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:22:15,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:22:15,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:22:15,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:22:15,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:22:15,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:22:15,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:22:15,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:22:15,338 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:22:15,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:22:15,339 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:22:15,339 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:22:15,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:22:15,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:22:15,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:22:15,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:22:15,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:22:15,656 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:22:15,657 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:22:15,658 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-04-18 19:22:15,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d15a277/da9dd9ac6f9b4ed6a17996c125144983/FLAG699509d65 [2020-04-18 19:22:16,227 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:22:16,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_tso.opt.i [2020-04-18 19:22:16,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d15a277/da9dd9ac6f9b4ed6a17996c125144983/FLAG699509d65 [2020-04-18 19:22:16,556 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0d15a277/da9dd9ac6f9b4ed6a17996c125144983 [2020-04-18 19:22:16,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:22:16,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:22:16,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:22:16,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:22:16,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:22:16,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:22:16" (1/1) ... [2020-04-18 19:22:16,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ad39a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:16, skipping insertion in model container [2020-04-18 19:22:16,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:22:16" (1/1) ... [2020-04-18 19:22:16,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:22:16,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:22:17,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:22:17,161 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:22:17,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:22:17,290 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:22:17,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17 WrapperNode [2020-04-18 19:22:17,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:22:17,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:22:17,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:22:17,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:22:17,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (1/1) ... [2020-04-18 19:22:17,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (1/1) ... [2020-04-18 19:22:17,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:22:17,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:22:17,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:22:17,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:22:17,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (1/1) ... [2020-04-18 19:22:17,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (1/1) ... [2020-04-18 19:22:17,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (1/1) ... [2020-04-18 19:22:17,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (1/1) ... [2020-04-18 19:22:17,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (1/1) ... [2020-04-18 19:22:17,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (1/1) ... [2020-04-18 19:22:17,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (1/1) ... [2020-04-18 19:22:17,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:22:17,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:22:17,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:22:17,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:22:17,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (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 [2020-04-18 19:22:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:22:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:22:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:22:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:22:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:22:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:22:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:22:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:22:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:22:17,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:22:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:22:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:22:17,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:22:17,443 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 19:22:17,839 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:22:17,840 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:22:17,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:22:17 BoogieIcfgContainer [2020-04-18 19:22:17,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:22:17,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:22:17,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:22:17,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:22:17,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:22:16" (1/3) ... [2020-04-18 19:22:17,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b645766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:22:17, skipping insertion in model container [2020-04-18 19:22:17,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:22:17" (2/3) ... [2020-04-18 19:22:17,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b645766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:22:17, skipping insertion in model container [2020-04-18 19:22:17,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:22:17" (3/3) ... [2020-04-18 19:22:17,854 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_tso.opt.i [2020-04-18 19:22:17,865 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:22:17,865 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:22:17,871 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:22:17,872 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:22:17,899 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,900 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,900 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,901 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,901 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,901 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,902 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,903 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,903 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,903 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,904 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,905 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,905 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,905 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,906 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,906 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,910 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,911 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,911 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,911 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,917 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,918 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,918 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,918 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,921 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,921 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,921 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,922 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:22:17,943 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:22:17,965 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:22:17,965 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:22:17,965 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:22:17,965 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:22:17,966 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:22:17,966 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:22:17,966 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:22:17,966 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:22:17,980 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 19:22:18,497 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8473 states. [2020-04-18 19:22:18,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8473 states. [2020-04-18 19:22:18,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 19:22:18,529 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:22:18,531 INFO L425 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, 1, 1, 1] [2020-04-18 19:22:18,531 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:22:18,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:18,538 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 1 times [2020-04-18 19:22:18,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:22:18,546 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [690835934] [2020-04-18 19:22:18,563 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:18,579 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 19:22:18,581 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-04-18 19:22:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 19:22:18,582 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:22:18,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:18,582 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 2 times [2020-04-18 19:22:18,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:22:18,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743980450] [2020-04-18 19:22:18,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:22:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:22:19,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:22:19,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743980450] [2020-04-18 19:22:19,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:22:19,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:22:19,114 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:22:19,119 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:19,133 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 37 transitions. [2020-04-18 19:22:19,133 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:22:19,205 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:22:19,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:22:19,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:22:19,213 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 6 states. [2020-04-18 19:22:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:19,342 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-04-18 19:22:19,342 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-04-18 19:22:19,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:22:19,344 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [690835934] [2020-04-18 19:22:19,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:22:19,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:22:19,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [690835934] [2020-04-18 19:22:19,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:22:19,348 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:22:19,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:22:19,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:22:19,356 INFO L87 Difference]: Start difference. First operand 8473 states. Second operand 6 states. [2020-04-18 19:22:19,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:19,766 INFO L93 Difference]: Finished difference Result 13147 states and 45961 transitions. [2020-04-18 19:22:19,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:22:19,768 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-04-18 19:22:19,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:22:19,843 INFO L225 Difference]: With dead ends: 13147 [2020-04-18 19:22:19,843 INFO L226 Difference]: Without dead ends: 4652 [2020-04-18 19:22:19,847 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:22:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2020-04-18 19:22:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4652. [2020-04-18 19:22:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-04-18 19:22:20,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 15991 transitions. [2020-04-18 19:22:20,291 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 15991 transitions. Word has length 37 [2020-04-18 19:22:20,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:22:20,293 INFO L479 AbstractCegarLoop]: Abstraction has 4652 states and 15991 transitions. [2020-04-18 19:22:20,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:22:20,296 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 15991 transitions. [2020-04-18 19:22:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:22:20,312 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:22:20,320 INFO L425 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, 1, 1, 1, 1, 1] [2020-04-18 19:22:20,320 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:22:20,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:20,321 INFO L82 PathProgramCache]: Analyzing trace with hash 240380524, now seen corresponding path program 1 times [2020-04-18 19:22:20,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:22:20,321 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1306937578] [2020-04-18 19:22:20,323 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:20,325 INFO L259 McrAutomatonBuilder]: Finished intersection with 80 states and 119 transitions. [2020-04-18 19:22:20,329 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-04-18 19:22:20,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:22:20,330 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:22:20,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:20,330 INFO L82 PathProgramCache]: Analyzing trace with hash 240380524, now seen corresponding path program 2 times [2020-04-18 19:22:20,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:22:20,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380711080] [2020-04-18 19:22:20,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:22:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:22:20,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:22:20,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380711080] [2020-04-18 19:22:20,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:22:20,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:22:20,551 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:22:20,554 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:20,560 INFO L259 McrAutomatonBuilder]: Finished intersection with 68 states and 95 transitions. [2020-04-18 19:22:20,561 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:22:20,612 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:22:20,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:22:20,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:22:20,612 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 7 states. [2020-04-18 19:22:20,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:20,687 INFO L93 Difference]: Finished difference Result 80 states and 119 transitions. [2020-04-18 19:22:20,687 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 119 transitions. [2020-04-18 19:22:20,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:22:20,688 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1306937578] [2020-04-18 19:22:20,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:22:20,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:22:20,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1306937578] [2020-04-18 19:22:20,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:22:20,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:22:20,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:22:20,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:22:20,691 INFO L87 Difference]: Start difference. First operand 4652 states and 15991 transitions. Second operand 7 states. [2020-04-18 19:22:20,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:20,902 INFO L93 Difference]: Finished difference Result 5372 states and 18242 transitions. [2020-04-18 19:22:20,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:22:20,903 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-04-18 19:22:20,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:22:20,938 INFO L225 Difference]: With dead ends: 5372 [2020-04-18 19:22:20,938 INFO L226 Difference]: Without dead ends: 4112 [2020-04-18 19:22:20,950 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:22:20,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2020-04-18 19:22:21,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 4112. [2020-04-18 19:22:21,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4112 states. [2020-04-18 19:22:21,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 13999 transitions. [2020-04-18 19:22:21,205 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 13999 transitions. Word has length 39 [2020-04-18 19:22:21,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:22:21,206 INFO L479 AbstractCegarLoop]: Abstraction has 4112 states and 13999 transitions. [2020-04-18 19:22:21,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:22:21,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 13999 transitions. [2020-04-18 19:22:21,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:22:21,214 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:22:21,214 INFO L425 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, 1, 1, 1, 1, 1] [2020-04-18 19:22:21,214 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:22:21,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:21,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 1 times [2020-04-18 19:22:21,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:22:21,215 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2016524814] [2020-04-18 19:22:21,216 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:21,218 INFO L259 McrAutomatonBuilder]: Finished intersection with 72 states and 103 transitions. [2020-04-18 19:22:21,219 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-04-18 19:22:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:22:21,220 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:22:21,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:21,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 2 times [2020-04-18 19:22:21,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:22:21,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068702406] [2020-04-18 19:22:21,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:22:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:22:21,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:22:21,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068702406] [2020-04-18 19:22:21,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:22:21,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:22:21,412 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:22:21,416 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:21,422 INFO L259 McrAutomatonBuilder]: Finished intersection with 60 states and 79 transitions. [2020-04-18 19:22:21,422 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:22:21,470 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:22:21,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:22:21,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:22:21,471 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 7 states. [2020-04-18 19:22:21,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:21,587 INFO L93 Difference]: Finished difference Result 72 states and 103 transitions. [2020-04-18 19:22:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 103 transitions. [2020-04-18 19:22:21,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:22:21,588 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2016524814] [2020-04-18 19:22:21,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:22:21,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:22:21,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2016524814] [2020-04-18 19:22:21,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:22:21,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:22:21,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:22:21,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:22:21,590 INFO L87 Difference]: Start difference. First operand 4112 states and 13999 transitions. Second operand 7 states. [2020-04-18 19:22:21,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:21,892 INFO L93 Difference]: Finished difference Result 7547 states and 25432 transitions. [2020-04-18 19:22:21,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-04-18 19:22:21,892 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2020-04-18 19:22:21,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:22:21,951 INFO L225 Difference]: With dead ends: 7547 [2020-04-18 19:22:21,951 INFO L226 Difference]: Without dead ends: 4792 [2020-04-18 19:22:21,952 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-04-18 19:22:21,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2020-04-18 19:22:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 4792. [2020-04-18 19:22:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4792 states. [2020-04-18 19:22:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 16188 transitions. [2020-04-18 19:22:22,263 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 16188 transitions. Word has length 39 [2020-04-18 19:22:22,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:22:22,263 INFO L479 AbstractCegarLoop]: Abstraction has 4792 states and 16188 transitions. [2020-04-18 19:22:22,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:22:22,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 16188 transitions. [2020-04-18 19:22:22,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:22:22,274 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:22:22,274 INFO L425 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, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:22:22,274 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:22:22,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:22,275 INFO L82 PathProgramCache]: Analyzing trace with hash 773486317, now seen corresponding path program 1 times [2020-04-18 19:22:22,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:22:22,275 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1343802259] [2020-04-18 19:22:22,277 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:22,280 INFO L259 McrAutomatonBuilder]: Finished intersection with 182 states and 385 transitions. [2020-04-18 19:22:22,282 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-04-18 19:22:22,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:22:22,283 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:22:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:22,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1162539155, now seen corresponding path program 2 times [2020-04-18 19:22:22,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:22:22,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252214348] [2020-04-18 19:22:22,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:22:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:22:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:22:22,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252214348] [2020-04-18 19:22:22,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:22:22,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:22:22,479 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:22:22,483 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:22,499 INFO L259 McrAutomatonBuilder]: Finished intersection with 134 states and 265 transitions. [2020-04-18 19:22:22,499 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:22:22,581 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:22:22,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:22:22,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:22:22,582 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 8 states. [2020-04-18 19:22:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:22,818 INFO L93 Difference]: Finished difference Result 182 states and 385 transitions. [2020-04-18 19:22:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 385 transitions. [2020-04-18 19:22:22,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:22:22,819 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1343802259] [2020-04-18 19:22:22,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:22:22,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:22:22,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1343802259] [2020-04-18 19:22:22,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:22:22,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:22:22,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:22:22,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-04-18 19:22:22,821 INFO L87 Difference]: Start difference. First operand 4792 states and 16188 transitions. Second operand 8 states. [2020-04-18 19:22:23,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:23,338 INFO L93 Difference]: Finished difference Result 8547 states and 28502 transitions. [2020-04-18 19:22:23,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 19:22:23,339 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 19:22:23,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:22:23,365 INFO L225 Difference]: With dead ends: 8547 [2020-04-18 19:22:23,366 INFO L226 Difference]: Without dead ends: 5092 [2020-04-18 19:22:23,366 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2020-04-18 19:22:23,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2020-04-18 19:22:23,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 4642. [2020-04-18 19:22:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4642 states. [2020-04-18 19:22:24,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4642 states to 4642 states and 15557 transitions. [2020-04-18 19:22:24,018 INFO L78 Accepts]: Start accepts. Automaton has 4642 states and 15557 transitions. Word has length 41 [2020-04-18 19:22:24,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:22:24,019 INFO L479 AbstractCegarLoop]: Abstraction has 4642 states and 15557 transitions. [2020-04-18 19:22:24,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:22:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand 4642 states and 15557 transitions. [2020-04-18 19:22:24,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:22:24,031 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:22:24,031 INFO L425 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, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:22:24,032 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:22:24,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:24,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1514673235, now seen corresponding path program 1 times [2020-04-18 19:22:24,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:22:24,033 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [955582288] [2020-04-18 19:22:24,035 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:24,038 INFO L259 McrAutomatonBuilder]: Finished intersection with 150 states and 305 transitions. [2020-04-18 19:22:24,039 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2020-04-18 19:22:24,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:22:24,039 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:22:24,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:24,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1514673235, now seen corresponding path program 2 times [2020-04-18 19:22:24,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:22:24,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105535840] [2020-04-18 19:22:24,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:22:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:22:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:22:24,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105535840] [2020-04-18 19:22:24,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:22:24,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:22:24,205 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:22:24,209 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:24,220 INFO L259 McrAutomatonBuilder]: Finished intersection with 102 states and 185 transitions. [2020-04-18 19:22:24,220 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:22:24,287 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:22:24,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:22:24,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:22:24,288 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 9 states. [2020-04-18 19:22:24,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:24,409 INFO L93 Difference]: Finished difference Result 150 states and 305 transitions. [2020-04-18 19:22:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 305 transitions. [2020-04-18 19:22:24,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:22:24,410 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [955582288] [2020-04-18 19:22:24,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:22:24,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:22:24,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [955582288] [2020-04-18 19:22:24,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:22:24,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:22:24,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:22:24,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:22:24,412 INFO L87 Difference]: Start difference. First operand 4642 states and 15557 transitions. Second operand 9 states. [2020-04-18 19:22:24,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:24,538 INFO L93 Difference]: Finished difference Result 5592 states and 18602 transitions. [2020-04-18 19:22:24,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 19:22:24,538 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2020-04-18 19:22:24,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:22:24,548 INFO L225 Difference]: With dead ends: 5592 [2020-04-18 19:22:24,548 INFO L226 Difference]: Without dead ends: 2687 [2020-04-18 19:22:24,549 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:22:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2020-04-18 19:22:24,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2687. [2020-04-18 19:22:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2687 states. [2020-04-18 19:22:24,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 8785 transitions. [2020-04-18 19:22:24,629 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 8785 transitions. Word has length 41 [2020-04-18 19:22:24,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:22:24,629 INFO L479 AbstractCegarLoop]: Abstraction has 2687 states and 8785 transitions. [2020-04-18 19:22:24,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:22:24,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 8785 transitions. [2020-04-18 19:22:24,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:22:24,635 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:22:24,635 INFO L425 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:22:24,636 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:22:24,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:24,636 INFO L82 PathProgramCache]: Analyzing trace with hash 419818727, now seen corresponding path program 1 times [2020-04-18 19:22:24,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:22:24,636 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1399286107] [2020-04-18 19:22:24,638 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:24,646 INFO L259 McrAutomatonBuilder]: Finished intersection with 237 states and 526 transitions. [2020-04-18 19:22:24,647 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2020-04-18 19:22:24,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:22:24,648 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:22:24,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:24,649 INFO L82 PathProgramCache]: Analyzing trace with hash 419818727, now seen corresponding path program 2 times [2020-04-18 19:22:24,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:22:24,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344783612] [2020-04-18 19:22:24,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:22:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:22:24,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:22:24,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344783612] [2020-04-18 19:22:24,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:22:24,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:22:24,764 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:22:24,768 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:24,783 INFO L259 McrAutomatonBuilder]: Finished intersection with 138 states and 262 transitions. [2020-04-18 19:22:24,783 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:22:24,828 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:22:24,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:22:24,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:22:24,829 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 8 states. [2020-04-18 19:22:24,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:24,952 INFO L93 Difference]: Finished difference Result 237 states and 526 transitions. [2020-04-18 19:22:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 526 transitions. [2020-04-18 19:22:24,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:22:24,953 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1399286107] [2020-04-18 19:22:24,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:22:24,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 19:22:24,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1399286107] [2020-04-18 19:22:24,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:22:24,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:22:24,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:22:24,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-04-18 19:22:24,954 INFO L87 Difference]: Start difference. First operand 2687 states and 8785 transitions. Second operand 8 states. [2020-04-18 19:22:25,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:25,056 INFO L93 Difference]: Finished difference Result 3727 states and 12109 transitions. [2020-04-18 19:22:25,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:22:25,056 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-04-18 19:22:25,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:22:25,062 INFO L225 Difference]: With dead ends: 3727 [2020-04-18 19:22:25,062 INFO L226 Difference]: Without dead ends: 1557 [2020-04-18 19:22:25,063 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 19:22:25,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2020-04-18 19:22:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1557. [2020-04-18 19:22:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1557 states. [2020-04-18 19:22:25,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 4927 transitions. [2020-04-18 19:22:25,105 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 4927 transitions. Word has length 42 [2020-04-18 19:22:25,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:22:25,105 INFO L479 AbstractCegarLoop]: Abstraction has 1557 states and 4927 transitions. [2020-04-18 19:22:25,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:22:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 4927 transitions. [2020-04-18 19:22:25,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:22:25,110 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:22:25,110 INFO L425 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:22:25,110 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:22:25,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:25,111 INFO L82 PathProgramCache]: Analyzing trace with hash -493734196, now seen corresponding path program 1 times [2020-04-18 19:22:25,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:22:25,111 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1592173307] [2020-04-18 19:22:25,113 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:25,127 INFO L259 McrAutomatonBuilder]: Finished intersection with 705 states and 2089 transitions. [2020-04-18 19:22:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states. [2020-04-18 19:22:25,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:22:25,134 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:22:25,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:25,135 INFO L82 PathProgramCache]: Analyzing trace with hash 15671900, now seen corresponding path program 2 times [2020-04-18 19:22:25,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:22:25,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598737163] [2020-04-18 19:22:25,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:22:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:22:25,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:22:25,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598737163] [2020-04-18 19:22:25,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:22:25,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:22:25,253 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:22:25,257 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:25,300 INFO L259 McrAutomatonBuilder]: Finished intersection with 305 states and 762 transitions. [2020-04-18 19:22:25,301 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:22:25,419 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:22:25,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:22:25,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:22:25,420 INFO L87 Difference]: Start difference. First operand 705 states. Second operand 11 states. [2020-04-18 19:22:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:25,693 INFO L93 Difference]: Finished difference Result 807 states and 2304 transitions. [2020-04-18 19:22:25,693 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 2304 transitions. [2020-04-18 19:22:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:22:25,695 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:22:25,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:25,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1787096026, now seen corresponding path program 3 times [2020-04-18 19:22:25,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:22:25,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006755922] [2020-04-18 19:22:25,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:22:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:22:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:22:25,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006755922] [2020-04-18 19:22:25,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:22:25,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:22:25,809 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:22:25,813 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:25,850 INFO L259 McrAutomatonBuilder]: Finished intersection with 257 states and 631 transitions. [2020-04-18 19:22:25,851 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:22:25,897 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:22:25,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:22:25,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-04-18 19:22:25,898 INFO L87 Difference]: Start difference. First operand 807 states and 2304 transitions. Second operand 9 states. [2020-04-18 19:22:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:26,319 INFO L93 Difference]: Finished difference Result 900 states and 2443 transitions. [2020-04-18 19:22:26,320 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 2443 transitions. [2020-04-18 19:22:26,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 19:22:26,325 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:22:26,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:22:26,325 INFO L82 PathProgramCache]: Analyzing trace with hash -715179570, now seen corresponding path program 4 times [2020-04-18 19:22:26,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:22:26,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217419264] [2020-04-18 19:22:26,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:22:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:22:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:22:26,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217419264] [2020-04-18 19:22:26,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:22:26,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:22:26,442 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:22:26,446 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:22:26,522 INFO L259 McrAutomatonBuilder]: Finished intersection with 194 states and 438 transitions. [2020-04-18 19:22:26,522 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:22:26,563 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 19:22:26,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:22:26,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=881, Unknown=0, NotChecked=0, Total=1122 [2020-04-18 19:22:26,565 INFO L87 Difference]: Start difference. First operand 900 states and 2443 transitions. Second operand 7 states. [2020-04-18 19:22:26,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:26,663 INFO L93 Difference]: Finished difference Result 900 states and 2443 transitions. [2020-04-18 19:22:26,663 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 2443 transitions. [2020-04-18 19:22:26,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:22:26,666 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1592173307] [2020-04-18 19:22:26,666 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:22:26,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:22:26,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1592173307] [2020-04-18 19:22:26,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 19:22:26,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:22:26,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 19:22:26,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=1114, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 19:22:26,669 INFO L87 Difference]: Start difference. First operand 1557 states and 4927 transitions. Second operand 15 states. [2020-04-18 19:22:26,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:22:26,889 INFO L93 Difference]: Finished difference Result 1397 states and 4399 transitions. [2020-04-18 19:22:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 19:22:26,889 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 45 [2020-04-18 19:22:26,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:22:26,890 INFO L225 Difference]: With dead ends: 1397 [2020-04-18 19:22:26,890 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:22:26,891 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=444, Invalid=1812, Unknown=0, NotChecked=0, Total=2256 [2020-04-18 19:22:26,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:22:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:22:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:22:26,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:22:26,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 19:22:26,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:22:26,893 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:22:26,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 19:22:26,893 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:22:26,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:22:26,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:22:26 BasicIcfg [2020-04-18 19:22:26,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:22:26,906 INFO L168 Benchmark]: Toolchain (without parser) took 10334.00 ms. Allocated memory was 146.8 MB in the beginning and 574.1 MB in the end (delta: 427.3 MB). Free memory was 101.7 MB in the beginning and 350.9 MB in the end (delta: -249.3 MB). Peak memory consumption was 178.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:22:26,907 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 19:22:26,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.31 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 99.6 MB in the beginning and 160.8 MB in the end (delta: -61.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2020-04-18 19:22:26,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.11 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:22:26,913 INFO L168 Benchmark]: Boogie Preprocessor took 27.42 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:22:26,915 INFO L168 Benchmark]: RCFGBuilder took 472.30 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 135.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-04-18 19:22:26,915 INFO L168 Benchmark]: TraceAbstraction took 9051.58 ms. Allocated memory was 203.9 MB in the beginning and 574.1 MB in the end (delta: 370.1 MB). Free memory was 134.4 MB in the beginning and 350.9 MB in the end (delta: -216.5 MB). Peak memory consumption was 153.6 MB. Max. memory is 7.1 GB. [2020-04-18 19:22:26,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.31 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 99.6 MB in the beginning and 160.8 MB in the end (delta: -61.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.11 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.42 ms. Allocated memory is still 203.9 MB. Free memory was 158.8 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 472.30 ms. Allocated memory is still 203.9 MB. Free memory was 156.8 MB in the beginning and 135.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9051.58 ms. Allocated memory was 203.9 MB in the beginning and 574.1 MB in the end (delta: 370.1 MB). Free memory was 134.4 MB in the beginning and 350.9 MB in the end (delta: -216.5 MB). Peak memory consumption was 153.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.9s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 711 SDtfs, 1348 SDslu, 2747 SDs, 0 SdLazy, 267 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 864 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8473occurred 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: 1.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 450 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...