/usr/bin/java -Xmx16000000000 -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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:35:10,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:35:10,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:35:10,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:35:10,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:35:10,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:35:10,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:35:10,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:35:10,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:35:10,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:35:10,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:35:10,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:35:10,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:35:10,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:35:10,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:35:10,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:35:10,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:35:10,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:35:10,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:35:10,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:35:10,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:35:10,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:35:10,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:35:10,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:35:10,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 18:35:10,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:35:10,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:35:10,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:35:10,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:35:10,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:35:10,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:35:10,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:35:10,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:35:10,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:35:10,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:35:10,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:35:10,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:35:10,381 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:35:10,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:35:10,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:35:10,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:35:10,384 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:35:10,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:35:10,384 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:35:10,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:35:10,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:35:10,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:35:10,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:35:10,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:35:10,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:35:10,387 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:35:10,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:35:10,387 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:35:10,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:35:10,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:35:10,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:35:10,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:35:10,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:35:10,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:35:10,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:35:10,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:35:10,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:35:10,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:35:10,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:35:10,389 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:35:10,389 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:35:10,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:35:10,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:35:10,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:35:10,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:35:10,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:35:10,723 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:35:10,724 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-11 18:35:10,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a1ab553/303d1d8371db41c89e0a164b22836b7d/FLAG6e1ff2791 [2020-10-11 18:35:11,255 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:35:11,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-11 18:35:11,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a1ab553/303d1d8371db41c89e0a164b22836b7d/FLAG6e1ff2791 [2020-10-11 18:35:11,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78a1ab553/303d1d8371db41c89e0a164b22836b7d [2020-10-11 18:35:11,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:35:11,584 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:35:11,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:35:11,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:35:11,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:35:11,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:35:11" (1/1) ... [2020-10-11 18:35:11,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d37d9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:11, skipping insertion in model container [2020-10-11 18:35:11,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:35:11" (1/1) ... [2020-10-11 18:35:11,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:35:11,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:35:12,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:35:12,076 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:35:12,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:35:12,205 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:35:12,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12 WrapperNode [2020-10-11 18:35:12,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:35:12,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:35:12,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:35:12,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:35:12,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (1/1) ... [2020-10-11 18:35:12,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (1/1) ... [2020-10-11 18:35:12,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:35:12,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:35:12,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:35:12,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:35:12,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (1/1) ... [2020-10-11 18:35:12,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (1/1) ... [2020-10-11 18:35:12,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (1/1) ... [2020-10-11 18:35:12,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (1/1) ... [2020-10-11 18:35:12,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (1/1) ... [2020-10-11 18:35:12,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (1/1) ... [2020-10-11 18:35:12,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (1/1) ... [2020-10-11 18:35:12,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:35:12,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:35:12,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:35:12,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:35:12,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (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 [2020-10-11 18:35:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:35:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:35:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:35:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:35:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:35:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:35:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:35:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:35:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:35:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:35:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:35:12,356 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:35:12,722 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:35:12,723 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 18:35:12,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:35:12 BoogieIcfgContainer [2020-10-11 18:35:12,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:35:12,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:35:12,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:35:12,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:35:12,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:35:11" (1/3) ... [2020-10-11 18:35:12,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac33e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:35:12, skipping insertion in model container [2020-10-11 18:35:12,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:35:12" (2/3) ... [2020-10-11 18:35:12,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac33e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:35:12, skipping insertion in model container [2020-10-11 18:35:12,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:35:12" (3/3) ... [2020-10-11 18:35:12,734 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-10-11 18:35:12,745 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:35:12,753 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:35:12,754 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:35:12,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,780 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,780 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,785 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,785 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,785 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,789 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:35:12,805 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-11 18:35:12,823 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:35:12,823 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:35:12,823 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:35:12,824 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:35:12,824 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:35:12,824 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:35:12,824 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:35:12,824 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:35:12,836 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-10-11 18:35:12,869 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-11 18:35:12,869 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:35:12,874 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-11 18:35:12,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 55 transitions, 120 flow [2020-10-11 18:35:12,880 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 44 transitions, 94 flow [2020-10-11 18:35:12,895 INFO L129 PetriNetUnfolder]: 1/43 cut-off events. [2020-10-11 18:35:12,896 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:35:12,896 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:35:12,897 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:35:12,897 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:35:12,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:35:12,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1893999798, now seen corresponding path program 1 times [2020-10-11 18:35:12,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:35:12,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963967103] [2020-10-11 18:35:12,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:35:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:35:13,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:35:13,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963967103] [2020-10-11 18:35:13,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:35:13,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:35:13,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182484911] [2020-10-11 18:35:13,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:35:13,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:35:13,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:35:13,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:35:13,517 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 55 [2020-10-11 18:35:13,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 94 flow. Second operand 6 states. [2020-10-11 18:35:13,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:35:13,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 55 [2020-10-11 18:35:13,521 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:35:13,668 INFO L129 PetriNetUnfolder]: 3/58 cut-off events. [2020-10-11 18:35:13,668 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:35:13,669 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 58 events. 3/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 4/61 useless extension candidates. Maximal degree in co-relation 63. Up to 7 conditions per place. [2020-10-11 18:35:13,670 INFO L132 encePairwiseOnDemand]: 48/55 looper letters, 6 selfloop transitions, 2 changer transitions 11/53 dead transitions. [2020-10-11 18:35:13,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 53 transitions, 148 flow [2020-10-11 18:35:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:35:13,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:35:13,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 427 transitions. [2020-10-11 18:35:13,714 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8626262626262626 [2020-10-11 18:35:13,716 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 427 transitions. [2020-10-11 18:35:13,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 427 transitions. [2020-10-11 18:35:13,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:35:13,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 427 transitions. [2020-10-11 18:35:13,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:35:13,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:35:13,752 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:35:13,755 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 94 flow. Second operand 9 states and 427 transitions. [2020-10-11 18:35:13,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 53 transitions, 148 flow [2020-10-11 18:35:13,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:35:13,765 INFO L241 Difference]: Finished difference. Result has 63 places, 42 transitions, 108 flow [2020-10-11 18:35:13,768 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=108, PETRI_PLACES=63, PETRI_TRANSITIONS=42} [2020-10-11 18:35:13,769 INFO L341 CegarLoopForPetriNet]: 50 programPoint places, 13 predicate places. [2020-10-11 18:35:13,769 INFO L481 AbstractCegarLoop]: Abstraction has has 63 places, 42 transitions, 108 flow [2020-10-11 18:35:13,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:35:13,770 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:35:13,770 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:35:13,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:35:13,770 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:35:13,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:35:13,771 INFO L82 PathProgramCache]: Analyzing trace with hash 356594891, now seen corresponding path program 1 times [2020-10-11 18:35:13,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:35:13,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034761858] [2020-10-11 18:35:13,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:35:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:35:13,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:35:13,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034761858] [2020-10-11 18:35:13,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:35:13,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:35:13,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888578873] [2020-10-11 18:35:13,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:35:13,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:35:13,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:35:13,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:35:14,145 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 55 [2020-10-11 18:35:14,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 42 transitions, 108 flow. Second operand 7 states. [2020-10-11 18:35:14,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:35:14,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 55 [2020-10-11 18:35:14,146 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:35:14,299 INFO L129 PetriNetUnfolder]: 4/63 cut-off events. [2020-10-11 18:35:14,299 INFO L130 PetriNetUnfolder]: For 17/24 co-relation queries the response was YES. [2020-10-11 18:35:14,300 INFO L80 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 63 events. 4/63 cut-off events. For 17/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 124 event pairs, 0 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 108. Up to 7 conditions per place. [2020-10-11 18:35:14,300 INFO L132 encePairwiseOnDemand]: 47/55 looper letters, 6 selfloop transitions, 4 changer transitions 12/54 dead transitions. [2020-10-11 18:35:14,300 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 54 transitions, 199 flow [2020-10-11 18:35:14,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:35:14,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:35:14,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 454 transitions. [2020-10-11 18:35:14,303 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8254545454545454 [2020-10-11 18:35:14,304 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 454 transitions. [2020-10-11 18:35:14,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 454 transitions. [2020-10-11 18:35:14,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:35:14,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 454 transitions. [2020-10-11 18:35:14,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:35:14,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:35:14,308 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:35:14,309 INFO L185 Difference]: Start difference. First operand has 63 places, 42 transitions, 108 flow. Second operand 10 states and 454 transitions. [2020-10-11 18:35:14,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 54 transitions, 199 flow [2020-10-11 18:35:14,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 165 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:35:14,313 INFO L241 Difference]: Finished difference. Result has 65 places, 42 transitions, 122 flow [2020-10-11 18:35:14,314 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=122, PETRI_PLACES=65, PETRI_TRANSITIONS=42} [2020-10-11 18:35:14,314 INFO L341 CegarLoopForPetriNet]: 50 programPoint places, 15 predicate places. [2020-10-11 18:35:14,315 INFO L481 AbstractCegarLoop]: Abstraction has has 65 places, 42 transitions, 122 flow [2020-10-11 18:35:14,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:35:14,315 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:35:14,315 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:35:14,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:35:14,316 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:35:14,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:35:14,316 INFO L82 PathProgramCache]: Analyzing trace with hash -194742748, now seen corresponding path program 1 times [2020-10-11 18:35:14,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:35:14,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610266981] [2020-10-11 18:35:14,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:35:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:35:14,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:35:14,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610266981] [2020-10-11 18:35:14,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:35:14,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:35:14,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483053783] [2020-10-11 18:35:14,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:35:14,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:35:14,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:35:14,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:35:14,601 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 55 [2020-10-11 18:35:14,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 42 transitions, 122 flow. Second operand 6 states. [2020-10-11 18:35:14,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:35:14,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 55 [2020-10-11 18:35:14,602 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:35:14,731 INFO L129 PetriNetUnfolder]: 24/121 cut-off events. [2020-10-11 18:35:14,732 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2020-10-11 18:35:14,733 INFO L80 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 121 events. 24/121 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 407 event pairs, 4 based on Foata normal form. 4/122 useless extension candidates. Maximal degree in co-relation 208. Up to 26 conditions per place. [2020-10-11 18:35:14,734 INFO L132 encePairwiseOnDemand]: 47/55 looper letters, 8 selfloop transitions, 5 changer transitions 15/61 dead transitions. [2020-10-11 18:35:14,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 61 transitions, 216 flow [2020-10-11 18:35:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:35:14,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:35:14,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 417 transitions. [2020-10-11 18:35:14,736 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8424242424242424 [2020-10-11 18:35:14,737 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 417 transitions. [2020-10-11 18:35:14,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 417 transitions. [2020-10-11 18:35:14,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:35:14,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 417 transitions. [2020-10-11 18:35:14,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:35:14,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:35:14,740 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:35:14,740 INFO L185 Difference]: Start difference. First operand has 65 places, 42 transitions, 122 flow. Second operand 9 states and 417 transitions. [2020-10-11 18:35:14,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 61 transitions, 216 flow [2020-10-11 18:35:14,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 190 flow, removed 8 selfloop flow, removed 10 redundant places. [2020-10-11 18:35:14,744 INFO L241 Difference]: Finished difference. Result has 63 places, 44 transitions, 140 flow [2020-10-11 18:35:14,744 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=140, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2020-10-11 18:35:14,745 INFO L341 CegarLoopForPetriNet]: 50 programPoint places, 13 predicate places. [2020-10-11 18:35:14,745 INFO L481 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 140 flow [2020-10-11 18:35:14,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:35:14,745 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:35:14,745 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:35:14,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:35:14,746 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:35:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:35:14,746 INFO L82 PathProgramCache]: Analyzing trace with hash 873705317, now seen corresponding path program 1 times [2020-10-11 18:35:14,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:35:14,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715220090] [2020-10-11 18:35:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:35:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:35:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:35:14,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715220090] [2020-10-11 18:35:14,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:35:14,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:35:14,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274111858] [2020-10-11 18:35:14,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:35:14,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:35:14,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:35:14,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:35:15,004 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 55 [2020-10-11 18:35:15,005 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 140 flow. Second operand 7 states. [2020-10-11 18:35:15,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:35:15,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 55 [2020-10-11 18:35:15,005 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:35:15,157 INFO L129 PetriNetUnfolder]: 8/71 cut-off events. [2020-10-11 18:35:15,157 INFO L130 PetriNetUnfolder]: For 67/72 co-relation queries the response was YES. [2020-10-11 18:35:15,157 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 71 events. 8/71 cut-off events. For 67/72 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 139 event pairs, 0 based on Foata normal form. 6/76 useless extension candidates. Maximal degree in co-relation 158. Up to 17 conditions per place. [2020-10-11 18:35:15,158 INFO L132 encePairwiseOnDemand]: 47/55 looper letters, 4 selfloop transitions, 7 changer transitions 11/55 dead transitions. [2020-10-11 18:35:15,158 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 55 transitions, 249 flow [2020-10-11 18:35:15,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:35:15,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:35:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 454 transitions. [2020-10-11 18:35:15,161 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8254545454545454 [2020-10-11 18:35:15,161 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 454 transitions. [2020-10-11 18:35:15,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 454 transitions. [2020-10-11 18:35:15,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:35:15,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 454 transitions. [2020-10-11 18:35:15,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:35:15,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:35:15,165 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:35:15,165 INFO L185 Difference]: Start difference. First operand has 63 places, 44 transitions, 140 flow. Second operand 10 states and 454 transitions. [2020-10-11 18:35:15,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 55 transitions, 249 flow [2020-10-11 18:35:15,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 55 transitions, 210 flow, removed 14 selfloop flow, removed 6 redundant places. [2020-10-11 18:35:15,169 INFO L241 Difference]: Finished difference. Result has 68 places, 44 transitions, 152 flow [2020-10-11 18:35:15,170 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=152, PETRI_PLACES=68, PETRI_TRANSITIONS=44} [2020-10-11 18:35:15,170 INFO L341 CegarLoopForPetriNet]: 50 programPoint places, 18 predicate places. [2020-10-11 18:35:15,170 INFO L481 AbstractCegarLoop]: Abstraction has has 68 places, 44 transitions, 152 flow [2020-10-11 18:35:15,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:35:15,170 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:35:15,171 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:35:15,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:35:15,171 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:35:15,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:35:15,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1414148496, now seen corresponding path program 1 times [2020-10-11 18:35:15,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:35:15,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092999080] [2020-10-11 18:35:15,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:35:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:35:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:35:15,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092999080] [2020-10-11 18:35:15,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:35:15,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:35:15,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136367621] [2020-10-11 18:35:15,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:35:15,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:35:15,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:35:15,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:35:15,402 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 55 [2020-10-11 18:35:15,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 44 transitions, 152 flow. Second operand 6 states. [2020-10-11 18:35:15,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:35:15,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 55 [2020-10-11 18:35:15,403 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:35:15,463 INFO L129 PetriNetUnfolder]: 1/44 cut-off events. [2020-10-11 18:35:15,463 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2020-10-11 18:35:15,463 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 44 events. 1/44 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 74. Up to 6 conditions per place. [2020-10-11 18:35:15,464 INFO L132 encePairwiseOnDemand]: 50/55 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2020-10-11 18:35:15,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 42 transitions, 164 flow [2020-10-11 18:35:15,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 18:35:15,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-11 18:35:15,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 273 transitions. [2020-10-11 18:35:15,465 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8272727272727273 [2020-10-11 18:35:15,466 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 273 transitions. [2020-10-11 18:35:15,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 273 transitions. [2020-10-11 18:35:15,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:35:15,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 273 transitions. [2020-10-11 18:35:15,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-11 18:35:15,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-11 18:35:15,468 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-11 18:35:15,468 INFO L185 Difference]: Start difference. First operand has 68 places, 44 transitions, 152 flow. Second operand 6 states and 273 transitions. [2020-10-11 18:35:15,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 42 transitions, 164 flow [2020-10-11 18:35:15,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 42 transitions, 118 flow, removed 13 selfloop flow, removed 13 redundant places. [2020-10-11 18:35:15,470 INFO L241 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2020-10-11 18:35:15,471 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2020-10-11 18:35:15,471 INFO L341 CegarLoopForPetriNet]: 50 programPoint places, 4 predicate places. [2020-10-11 18:35:15,471 INFO L481 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2020-10-11 18:35:15,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:35:15,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:35:15,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:35:15 BasicIcfg [2020-10-11 18:35:15,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:35:15,480 INFO L168 Benchmark]: Toolchain (without parser) took 3895.80 ms. Allocated memory was 247.5 MB in the beginning and 366.5 MB in the end (delta: 119.0 MB). Free memory was 203.4 MB in the beginning and 269.5 MB in the end (delta: -66.1 MB). Peak memory consumption was 52.9 MB. Max. memory is 14.2 GB. [2020-10-11 18:35:15,481 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 247.5 MB. Free memory is still 223.8 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:35:15,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.85 ms. Allocated memory was 247.5 MB in the beginning and 301.5 MB in the end (delta: 54.0 MB). Free memory was 203.4 MB in the beginning and 252.4 MB in the end (delta: -49.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:35:15,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.24 ms. Allocated memory is still 301.5 MB. Free memory was 252.4 MB in the beginning and 249.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:35:15,483 INFO L168 Benchmark]: Boogie Preprocessor took 25.75 ms. Allocated memory is still 301.5 MB. Free memory is still 249.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:35:15,484 INFO L168 Benchmark]: RCFGBuilder took 442.45 ms. Allocated memory is still 301.5 MB. Free memory was 249.9 MB in the beginning and 227.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 14.2 GB. [2020-10-11 18:35:15,485 INFO L168 Benchmark]: TraceAbstraction took 2751.02 ms. Allocated memory was 301.5 MB in the beginning and 366.5 MB in the end (delta: 65.0 MB). Free memory was 227.7 MB in the beginning and 269.5 MB in the end (delta: -41.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 14.2 GB. [2020-10-11 18:35:15,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 247.5 MB. Free memory is still 223.8 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 621.85 ms. Allocated memory was 247.5 MB in the beginning and 301.5 MB in the end (delta: 54.0 MB). Free memory was 203.4 MB in the beginning and 252.4 MB in the end (delta: -49.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.24 ms. Allocated memory is still 301.5 MB. Free memory was 252.4 MB in the beginning and 249.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.75 ms. Allocated memory is still 301.5 MB. Free memory is still 249.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 442.45 ms. Allocated memory is still 301.5 MB. Free memory was 249.9 MB in the beginning and 227.7 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2751.02 ms. Allocated memory was 301.5 MB in the beginning and 366.5 MB in the end (delta: 65.0 MB). Free memory was 227.7 MB in the beginning and 269.5 MB in the end (delta: -41.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 14.2 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 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 105 SDtfs, 111 SDslu, 271 SDs, 0 SdLazy, 288 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 16220 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...