/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/safe006_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:19:41,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:19:41,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:19:41,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:19:41,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:19:41,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:19:41,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:19:41,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:19:41,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:19:41,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:19:41,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:19:41,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:19:41,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:19:41,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:19:41,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:19:41,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:19:41,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:19:41,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:19:41,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:19:41,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:19:41,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:19:41,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:19:41,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:19:41,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:19:41,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:19:41,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:19:41,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:19:41,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:19:41,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:19:41,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:19:41,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:19:41,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:19:41,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:19:41,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:19:41,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:19:41,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:19:41,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:19:41,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:19:41,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:19:41,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:19:41,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:19:41,202 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 19:19:41,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:19:41,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:19:41,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:19:41,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:19:41,219 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:19:41,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:19:41,219 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:19:41,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:19:41,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:19:41,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:19:41,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:19:41,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:19:41,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:19:41,220 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:19:41,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:19:41,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:19:41,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:19:41,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:19:41,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:19:41,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:19:41,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:19:41,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:19:41,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:19:41,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:19:41,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:19:41,223 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:19:41,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:19:41,223 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:19:41,223 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:19:41,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:19:41,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:19:41,531 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:19:41,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:19:41,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:19:41,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:19:41,551 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:19:41,552 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2020-04-18 19:19:41,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dfd57882/48d9a5cfa34043f4956a45c7184ba106/FLAG6885f4b73 [2020-04-18 19:19:42,242 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:19:42,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.opt.i [2020-04-18 19:19:42,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dfd57882/48d9a5cfa34043f4956a45c7184ba106/FLAG6885f4b73 [2020-04-18 19:19:42,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dfd57882/48d9a5cfa34043f4956a45c7184ba106 [2020-04-18 19:19:42,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:19:42,571 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:19:42,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:19:42,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:19:42,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:19:42,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:19:42" (1/1) ... [2020-04-18 19:19:42,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7911a30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:42, skipping insertion in model container [2020-04-18 19:19:42,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:19:42" (1/1) ... [2020-04-18 19:19:42,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:19:42,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:19:43,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:19:43,111 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:19:43,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:19:43,243 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:19:43,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43 WrapperNode [2020-04-18 19:19:43,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:19:43,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:19:43,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:19:43,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:19:43,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (1/1) ... [2020-04-18 19:19:43,274 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (1/1) ... [2020-04-18 19:19:43,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:19:43,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:19:43,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:19:43,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:19:43,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (1/1) ... [2020-04-18 19:19:43,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (1/1) ... [2020-04-18 19:19:43,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (1/1) ... [2020-04-18 19:19:43,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (1/1) ... [2020-04-18 19:19:43,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (1/1) ... [2020-04-18 19:19:43,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (1/1) ... [2020-04-18 19:19:43,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (1/1) ... [2020-04-18 19:19:43,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:19:43,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:19:43,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:19:43,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:19:43,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (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 19:19:43,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:19:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:19:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:19:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:19:43,397 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:19:43,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:19:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:19:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:19:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:19:43,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:19:43,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:19:43,400 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 19:19:43,740 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:19:43,740 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:19:43,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:19:43 BoogieIcfgContainer [2020-04-18 19:19:43,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:19:43,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:19:43,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:19:43,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:19:43,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:19:42" (1/3) ... [2020-04-18 19:19:43,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d81d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:19:43, skipping insertion in model container [2020-04-18 19:19:43,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:19:43" (2/3) ... [2020-04-18 19:19:43,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d81d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:19:43, skipping insertion in model container [2020-04-18 19:19:43,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:19:43" (3/3) ... [2020-04-18 19:19:43,753 INFO L109 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2020-04-18 19:19:43,763 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:19:43,763 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:19:43,770 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:19:43,771 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:19:43,799 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,800 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,800 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,801 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,801 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,801 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,802 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,802 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,802 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,802 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,803 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,803 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,808 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,808 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,808 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,809 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,814 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,815 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,815 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,815 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:19:43,832 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 19:19:43,852 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:19:43,852 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:19:43,852 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:19:43,852 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:19:43,853 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:19:43,853 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:19:43,853 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:19:43,853 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:19:43,866 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 19:19:43,938 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1121 states. [2020-04-18 19:19:43,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states. [2020-04-18 19:19:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 19:19:43,961 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:19:43,962 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] [2020-04-18 19:19:43,962 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:19:43,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:43,969 INFO L82 PathProgramCache]: Analyzing trace with hash 441942769, now seen corresponding path program 1 times [2020-04-18 19:19:43,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:19:43,977 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1523144787] [2020-04-18 19:19:43,993 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:44,005 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 19:19:44,008 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 19:19:44,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 19:19:44,009 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:19:44,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:44,010 INFO L82 PathProgramCache]: Analyzing trace with hash 441942769, now seen corresponding path program 2 times [2020-04-18 19:19:44,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:19:44,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112420984] [2020-04-18 19:19:44,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:19:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:19:44,507 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 19:19:44,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112420984] [2020-04-18 19:19:44,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:19:44,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:19:44,511 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:19:44,515 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:44,531 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 19:19:44,531 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:19:44,632 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:19:44,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:19:44,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:19:44,639 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 7 states. [2020-04-18 19:19:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:44,733 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-04-18 19:19:44,733 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-04-18 19:19:44,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:19:44,734 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1523144787] [2020-04-18 19:19:44,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:19:44,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:19:44,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1523144787] [2020-04-18 19:19:44,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:19:44,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:19:44,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:19:44,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:19:44,743 INFO L87 Difference]: Start difference. First operand 1121 states. Second operand 7 states. [2020-04-18 19:19:44,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:44,892 INFO L93 Difference]: Finished difference Result 1513 states and 3945 transitions. [2020-04-18 19:19:44,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:19:44,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-04-18 19:19:44,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:19:44,912 INFO L225 Difference]: With dead ends: 1513 [2020-04-18 19:19:44,913 INFO L226 Difference]: Without dead ends: 596 [2020-04-18 19:19:44,915 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 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 19:19:44,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-04-18 19:19:44,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2020-04-18 19:19:44,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-04-18 19:19:44,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 1507 transitions. [2020-04-18 19:19:44,997 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 1507 transitions. Word has length 31 [2020-04-18 19:19:44,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:19:44,998 INFO L479 AbstractCegarLoop]: Abstraction has 596 states and 1507 transitions. [2020-04-18 19:19:44,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:19:44,998 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 1507 transitions. [2020-04-18 19:19:45,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 19:19:45,003 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:19:45,003 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] [2020-04-18 19:19:45,004 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:19:45,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:45,004 INFO L82 PathProgramCache]: Analyzing trace with hash 256262898, now seen corresponding path program 1 times [2020-04-18 19:19:45,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:19:45,005 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [534765458] [2020-04-18 19:19:45,006 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:45,007 INFO L259 McrAutomatonBuilder]: Finished intersection with 66 states and 97 transitions. [2020-04-18 19:19:45,010 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2020-04-18 19:19:45,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-04-18 19:19:45,013 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:19:45,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:45,014 INFO L82 PathProgramCache]: Analyzing trace with hash 256262898, now seen corresponding path program 2 times [2020-04-18 19:19:45,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:19:45,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857711769] [2020-04-18 19:19:45,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:19:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:19:45,219 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 19:19:45,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857711769] [2020-04-18 19:19:45,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:19:45,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:19:45,221 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:19:45,224 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:45,229 INFO L259 McrAutomatonBuilder]: Finished intersection with 54 states and 73 transitions. [2020-04-18 19:19:45,230 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:19:45,282 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:19:45,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:19:45,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:19:45,284 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 7 states. [2020-04-18 19:19:45,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:45,358 INFO L93 Difference]: Finished difference Result 66 states and 97 transitions. [2020-04-18 19:19:45,358 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2020-04-18 19:19:45,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:19:45,359 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [534765458] [2020-04-18 19:19:45,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:19:45,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:19:45,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [534765458] [2020-04-18 19:19:45,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 19:19:45,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:19:45,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:19:45,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-04-18 19:19:45,362 INFO L87 Difference]: Start difference. First operand 596 states and 1507 transitions. Second operand 7 states. [2020-04-18 19:19:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:45,460 INFO L93 Difference]: Finished difference Result 676 states and 1686 transitions. [2020-04-18 19:19:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 19:19:45,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-04-18 19:19:45,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:19:45,465 INFO L225 Difference]: With dead ends: 676 [2020-04-18 19:19:45,465 INFO L226 Difference]: Without dead ends: 536 [2020-04-18 19:19:45,467 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 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 19:19:45,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-04-18 19:19:45,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-04-18 19:19:45,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-04-18 19:19:45,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1339 transitions. [2020-04-18 19:19:45,491 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1339 transitions. Word has length 33 [2020-04-18 19:19:45,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:19:45,492 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 1339 transitions. [2020-04-18 19:19:45,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 19:19:45,492 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1339 transitions. [2020-04-18 19:19:45,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:19:45,494 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:19:45,494 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] [2020-04-18 19:19:45,495 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:19:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:45,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1419898419, now seen corresponding path program 1 times [2020-04-18 19:19:45,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:19:45,496 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1289448679] [2020-04-18 19:19:45,497 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:45,500 INFO L259 McrAutomatonBuilder]: Finished intersection with 144 states and 299 transitions. [2020-04-18 19:19:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-04-18 19:19:45,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:19:45,503 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:19:45,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:45,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1455513139, now seen corresponding path program 2 times [2020-04-18 19:19:45,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:19:45,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361660092] [2020-04-18 19:19:45,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:19:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:19:45,668 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 19:19:45,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361660092] [2020-04-18 19:19:45,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:19:45,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:19:45,671 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:19:45,676 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:45,687 INFO L259 McrAutomatonBuilder]: Finished intersection with 87 states and 149 transitions. [2020-04-18 19:19:45,687 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:19:45,761 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:19:45,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:19:45,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:19:45,762 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 7 states. [2020-04-18 19:19:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:45,898 INFO L93 Difference]: Finished difference Result 162 states and 326 transitions. [2020-04-18 19:19:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 326 transitions. [2020-04-18 19:19:45,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 19:19:45,901 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:19:45,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:45,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1419898419, now seen corresponding path program 3 times [2020-04-18 19:19:45,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:19:45,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689014473] [2020-04-18 19:19:45,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:19:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:19:46,051 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 19:19:46,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689014473] [2020-04-18 19:19:46,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:19:46,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:19:46,053 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:19:46,057 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:46,067 INFO L259 McrAutomatonBuilder]: Finished intersection with 96 states and 179 transitions. [2020-04-18 19:19:46,067 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:19:46,324 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:19:46,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-04-18 19:19:46,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2020-04-18 19:19:46,325 INFO L87 Difference]: Start difference. First operand 162 states and 326 transitions. Second operand 16 states. [2020-04-18 19:19:46,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:46,598 INFO L93 Difference]: Finished difference Result 162 states and 326 transitions. [2020-04-18 19:19:46,598 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 326 transitions. [2020-04-18 19:19:46,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:19:46,599 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1289448679] [2020-04-18 19:19:46,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:19:46,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:19:46,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1289448679] [2020-04-18 19:19:46,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-04-18 19:19:46,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:19:46,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-04-18 19:19:46,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=584, Unknown=0, NotChecked=0, Total=812 [2020-04-18 19:19:46,602 INFO L87 Difference]: Start difference. First operand 536 states and 1339 transitions. Second operand 17 states. [2020-04-18 19:19:46,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:46,786 INFO L93 Difference]: Finished difference Result 746 states and 1852 transitions. [2020-04-18 19:19:46,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 19:19:46,787 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 35 [2020-04-18 19:19:46,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:19:46,789 INFO L225 Difference]: With dead ends: 746 [2020-04-18 19:19:46,790 INFO L226 Difference]: Without dead ends: 401 [2020-04-18 19:19:46,791 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=327, Invalid=729, Unknown=0, NotChecked=0, Total=1056 [2020-04-18 19:19:46,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-04-18 19:19:46,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2020-04-18 19:19:46,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-04-18 19:19:46,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 955 transitions. [2020-04-18 19:19:46,804 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 955 transitions. Word has length 35 [2020-04-18 19:19:46,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:19:46,805 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 955 transitions. [2020-04-18 19:19:46,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-04-18 19:19:46,805 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 955 transitions. [2020-04-18 19:19:46,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:19:46,806 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:19:46,806 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] [2020-04-18 19:19:46,807 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:19:46,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:46,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1552303459, now seen corresponding path program 1 times [2020-04-18 19:19:46,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:19:46,808 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [869983921] [2020-04-18 19:19:46,809 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:46,811 INFO L259 McrAutomatonBuilder]: Finished intersection with 187 states and 408 transitions. [2020-04-18 19:19:46,815 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2020-04-18 19:19:46,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:19:46,817 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:19:46,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:46,817 INFO L82 PathProgramCache]: Analyzing trace with hash -2123736695, now seen corresponding path program 2 times [2020-04-18 19:19:46,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:19:46,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036417662] [2020-04-18 19:19:46,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:19:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:19:46,969 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 19:19:46,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036417662] [2020-04-18 19:19:46,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:19:46,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:19:46,970 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:19:46,973 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:46,983 INFO L259 McrAutomatonBuilder]: Finished intersection with 117 states and 220 transitions. [2020-04-18 19:19:46,984 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:19:47,019 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:19:47,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:19:47,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 19:19:47,020 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 7 states. [2020-04-18 19:19:47,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:47,124 INFO L93 Difference]: Finished difference Result 211 states and 446 transitions. [2020-04-18 19:19:47,125 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 446 transitions. [2020-04-18 19:19:47,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:19:47,126 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:19:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:19:47,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1641479599, now seen corresponding path program 3 times [2020-04-18 19:19:47,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:19:47,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512072619] [2020-04-18 19:19:47,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:19:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:19:47,243 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 19:19:47,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512072619] [2020-04-18 19:19:47,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:19:47,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:19:47,244 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:19:47,246 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:19:47,255 INFO L259 McrAutomatonBuilder]: Finished intersection with 100 states and 180 transitions. [2020-04-18 19:19:47,255 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:19:47,281 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:19:47,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:19:47,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-04-18 19:19:47,282 INFO L87 Difference]: Start difference. First operand 211 states and 446 transitions. Second operand 7 states. [2020-04-18 19:19:47,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:47,363 INFO L93 Difference]: Finished difference Result 211 states and 446 transitions. [2020-04-18 19:19:47,363 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 446 transitions. [2020-04-18 19:19:47,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:19:47,364 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [869983921] [2020-04-18 19:19:47,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:19:47,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:19:47,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [869983921] [2020-04-18 19:19:47,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 19:19:47,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:19:47,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:19:47,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-04-18 19:19:47,366 INFO L87 Difference]: Start difference. First operand 401 states and 955 transitions. Second operand 9 states. [2020-04-18 19:19:47,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:19:47,464 INFO L93 Difference]: Finished difference Result 361 states and 853 transitions. [2020-04-18 19:19:47,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 19:19:47,465 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2020-04-18 19:19:47,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:19:47,465 INFO L225 Difference]: With dead ends: 361 [2020-04-18 19:19:47,466 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:19:47,466 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-04-18 19:19:47,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:19:47,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:19:47,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:19:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:19:47,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2020-04-18 19:19:47,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:19:47,467 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:19:47,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 19:19:47,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:19:47,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:19:47,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:19:47 BasicIcfg [2020-04-18 19:19:47,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:19:47,476 INFO L168 Benchmark]: Toolchain (without parser) took 4927.41 ms. Allocated memory was 138.9 MB in the beginning and 249.6 MB in the end (delta: 110.6 MB). Free memory was 101.9 MB in the beginning and 96.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:19:47,477 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 19:19:47,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.09 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 158.4 MB in the end (delta: -58.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:19:47,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.21 ms. Allocated memory is still 201.9 MB. Free memory was 158.4 MB in the beginning and 156.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 19:19:47,479 INFO L168 Benchmark]: Boogie Preprocessor took 27.00 ms. Allocated memory is still 201.9 MB. Free memory was 156.5 MB in the beginning and 155.5 MB in the end (delta: 940.4 kB). Peak memory consumption was 940.4 kB. Max. memory is 7.1 GB. [2020-04-18 19:19:47,480 INFO L168 Benchmark]: RCFGBuilder took 419.16 ms. Allocated memory is still 201.9 MB. Free memory was 155.5 MB in the beginning and 135.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-04-18 19:19:47,481 INFO L168 Benchmark]: TraceAbstraction took 3727.87 ms. Allocated memory was 201.9 MB in the beginning and 249.6 MB in the end (delta: 47.7 MB). Free memory was 135.3 MB in the beginning and 96.2 MB in the end (delta: 39.1 MB). Peak memory consumption was 86.8 MB. Max. memory is 7.1 GB. [2020-04-18 19:19:47,491 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.09 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.9 MB in the beginning and 158.4 MB in the end (delta: -58.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.21 ms. Allocated memory is still 201.9 MB. Free memory was 158.4 MB in the beginning and 156.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.00 ms. Allocated memory is still 201.9 MB. Free memory was 156.5 MB in the beginning and 155.5 MB in the end (delta: 940.4 kB). Peak memory consumption was 940.4 kB. Max. memory is 7.1 GB. * RCFGBuilder took 419.16 ms. Allocated memory is still 201.9 MB. Free memory was 155.5 MB in the beginning and 135.3 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3727.87 ms. Allocated memory was 201.9 MB in the beginning and 249.6 MB in the end (delta: 47.7 MB). Free memory was 135.3 MB in the beginning and 96.2 MB in the end (delta: 39.1 MB). Peak memory consumption was 86.8 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 275 SDtfs, 766 SDslu, 1132 SDs, 0 SdLazy, 154 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 269 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1121occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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...