/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/fib_bench_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:05:17,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:05:17,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:05:17,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:05:17,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:05:17,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:05:17,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:05:17,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:05:17,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:05:17,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:05:17,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:05:17,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:05:17,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:05:17,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:05:17,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:05:17,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:05:17,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:05:17,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:05:17,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:05:17,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:05:17,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:05:17,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:05:17,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:05:17,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:05:17,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:05:17,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:05:17,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:05:17,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:05:17,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:05:17,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:05:17,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:05:17,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:05:17,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:05:17,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:05:17,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:05:17,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:05:17,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:05:17,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:05:17,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:05:17,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:05:17,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:05:17,162 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 16:05:17,181 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:05:17,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:05:17,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:05:17,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:05:17,184 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:05:17,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:05:17,185 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:05:17,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:05:17,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:05:17,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:05:17,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:05:17,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:05:17,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:05:17,187 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:05:17,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:05:17,187 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:05:17,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:05:17,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:05:17,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:05:17,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:05:17,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:05:17,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:05:17,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:05:17,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:05:17,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:05:17,190 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:05:17,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:05:17,190 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 16:05:17,190 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:05:17,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:05:17,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:05:17,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:05:17,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:05:17,511 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:05:17,512 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:05:17,513 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:05:17,513 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/fib_bench_longer-2.i [2020-04-18 16:05:17,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1343c69f/022236ce6cea4936b83c3ab3b4fb3bb0/FLAG30961fc41 [2020-04-18 16:05:18,101 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:05:18,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_bench_longer-2.i [2020-04-18 16:05:18,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1343c69f/022236ce6cea4936b83c3ab3b4fb3bb0/FLAG30961fc41 [2020-04-18 16:05:18,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1343c69f/022236ce6cea4936b83c3ab3b4fb3bb0 [2020-04-18 16:05:18,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:05:18,449 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:05:18,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:05:18,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:05:18,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:05:18,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:05:18" (1/1) ... [2020-04-18 16:05:18,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5631ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:18, skipping insertion in model container [2020-04-18 16:05:18,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:05:18" (1/1) ... [2020-04-18 16:05:18,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:05:18,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:05:18,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:05:19,011 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:05:19,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:05:19,167 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:05:19,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19 WrapperNode [2020-04-18 16:05:19,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:05:19,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:05:19,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:05:19,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:05:19,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (1/1) ... [2020-04-18 16:05:19,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (1/1) ... [2020-04-18 16:05:19,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:05:19,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:05:19,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:05:19,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:05:19,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (1/1) ... [2020-04-18 16:05:19,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (1/1) ... [2020-04-18 16:05:19,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (1/1) ... [2020-04-18 16:05:19,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (1/1) ... [2020-04-18 16:05:19,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (1/1) ... [2020-04-18 16:05:19,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (1/1) ... [2020-04-18 16:05:19,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (1/1) ... [2020-04-18 16:05:19,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:05:19,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:05:19,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:05:19,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:05:19,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (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 16:05:19,309 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-04-18 16:05:19,310 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-04-18 16:05:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-04-18 16:05:19,310 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-04-18 16:05:19,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:05:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 16:05:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:05:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:05:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 16:05:19,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:05:19,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:05:19,313 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 16:05:19,674 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:05:19,675 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-18 16:05:19,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:05:19 BoogieIcfgContainer [2020-04-18 16:05:19,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:05:19,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:05:19,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:05:19,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:05:19,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:05:18" (1/3) ... [2020-04-18 16:05:19,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12601dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:05:19, skipping insertion in model container [2020-04-18 16:05:19,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:05:19" (2/3) ... [2020-04-18 16:05:19,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12601dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:05:19, skipping insertion in model container [2020-04-18 16:05:19,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:05:19" (3/3) ... [2020-04-18 16:05:19,688 INFO L109 eAbstractionObserver]: Analyzing ICFG fib_bench_longer-2.i [2020-04-18 16:05:19,699 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:05:19,700 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:05:19,707 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 16:05:19,708 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:05:19,734 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,734 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,735 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,735 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,736 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,736 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,736 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,737 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,737 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,737 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,738 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,738 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,738 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,738 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,739 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,739 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,740 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,740 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,740 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,740 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,741 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,741 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,741 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,742 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,742 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,742 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,743 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,743 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,743 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,744 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,747 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,748 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,748 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,748 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,748 WARN L315 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,749 WARN L315 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~k~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,755 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,756 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,756 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,756 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,756 WARN L315 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,757 WARN L315 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:05:19,773 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 16:05:19,796 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:05:19,797 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:05:19,797 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:05:19,797 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:05:19,797 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:05:19,797 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:05:19,798 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:05:19,798 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:05:19,811 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 57 transitions, 124 flow [2020-04-18 16:05:19,922 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1741 states. [2020-04-18 16:05:19,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states. [2020-04-18 16:05:19,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 16:05:19,936 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:19,937 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] [2020-04-18 16:05:19,937 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:19,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:19,944 INFO L82 PathProgramCache]: Analyzing trace with hash 627590565, now seen corresponding path program 1 times [2020-04-18 16:05:19,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:19,952 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1145749327] [2020-04-18 16:05:19,969 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:19,985 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-04-18 16:05:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-04-18 16:05:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-04-18 16:05:19,989 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:19,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:19,989 INFO L82 PathProgramCache]: Analyzing trace with hash 627590565, now seen corresponding path program 2 times [2020-04-18 16:05:19,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:19,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63248036] [2020-04-18 16:05:19,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:20,432 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 16:05:20,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63248036] [2020-04-18 16:05:20,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:05:20,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 16:05:20,436 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:20,439 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:20,450 INFO L259 McrAutomatonBuilder]: Finished intersection with 23 states and 22 transitions. [2020-04-18 16:05:20,451 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:20,499 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:05:20,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 16:05:20,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 16:05:20,505 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 6 states. [2020-04-18 16:05:20,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:20,548 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-04-18 16:05:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-04-18 16:05:20,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:20,549 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1145749327] [2020-04-18 16:05:20,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:20,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 16:05:20,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1145749327] [2020-04-18 16:05:20,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 16:05:20,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:20,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 16:05:20,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 16:05:20,558 INFO L87 Difference]: Start difference. First operand 1741 states. Second operand 6 states. [2020-04-18 16:05:20,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:20,767 INFO L93 Difference]: Finished difference Result 3726 states and 10822 transitions. [2020-04-18 16:05:20,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 16:05:20,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-04-18 16:05:20,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:20,812 INFO L225 Difference]: With dead ends: 3726 [2020-04-18 16:05:20,812 INFO L226 Difference]: Without dead ends: 1164 [2020-04-18 16:05:20,816 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-04-18 16:05:20,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2020-04-18 16:05:20,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 899. [2020-04-18 16:05:20,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-04-18 16:05:20,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 2439 transitions. [2020-04-18 16:05:20,984 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 2439 transitions. Word has length 22 [2020-04-18 16:05:20,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:20,984 INFO L479 AbstractCegarLoop]: Abstraction has 899 states and 2439 transitions. [2020-04-18 16:05:20,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 16:05:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 2439 transitions. [2020-04-18 16:05:20,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 16:05:20,994 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:20,994 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] [2020-04-18 16:05:20,994 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:20,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1828680335, now seen corresponding path program 1 times [2020-04-18 16:05:20,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:20,995 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [798871973] [2020-04-18 16:05:20,997 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:20,999 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 77 transitions. [2020-04-18 16:05:21,000 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-04-18 16:05:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-04-18 16:05:21,002 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:21,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:21,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1828680335, now seen corresponding path program 2 times [2020-04-18 16:05:21,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:21,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246906405] [2020-04-18 16:05:21,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:21,244 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 16:05:21,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246906405] [2020-04-18 16:05:21,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:05:21,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 16:05:21,245 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:21,248 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:21,251 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 47 transitions. [2020-04-18 16:05:21,251 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:21,361 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 5 times. [2020-04-18 16:05:21,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:05:21,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-04-18 16:05:21,362 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 9 states. [2020-04-18 16:05:21,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:21,656 INFO L93 Difference]: Finished difference Result 55 states and 79 transitions. [2020-04-18 16:05:21,657 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2020-04-18 16:05:21,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:21,658 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [798871973] [2020-04-18 16:05:21,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:21,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 16:05:21,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [798871973] [2020-04-18 16:05:21,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 16:05:21,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:21,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 16:05:21,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-04-18 16:05:21,661 INFO L87 Difference]: Start difference. First operand 899 states and 2439 transitions. Second operand 9 states. [2020-04-18 16:05:22,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:22,481 INFO L93 Difference]: Finished difference Result 2532 states and 6577 transitions. [2020-04-18 16:05:22,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-04-18 16:05:22,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-04-18 16:05:22,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:22,498 INFO L225 Difference]: With dead ends: 2532 [2020-04-18 16:05:22,498 INFO L226 Difference]: Without dead ends: 1830 [2020-04-18 16:05:22,500 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=270, Invalid=786, Unknown=0, NotChecked=0, Total=1056 [2020-04-18 16:05:22,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2020-04-18 16:05:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1215. [2020-04-18 16:05:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1215 states. [2020-04-18 16:05:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 3235 transitions. [2020-04-18 16:05:22,549 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 3235 transitions. Word has length 27 [2020-04-18 16:05:22,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:22,551 INFO L479 AbstractCegarLoop]: Abstraction has 1215 states and 3235 transitions. [2020-04-18 16:05:22,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 16:05:22,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 3235 transitions. [2020-04-18 16:05:22,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 16:05:22,555 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:22,555 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] [2020-04-18 16:05:22,555 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:22,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:22,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1443640527, now seen corresponding path program 1 times [2020-04-18 16:05:22,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:22,556 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1705865533] [2020-04-18 16:05:22,558 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:22,565 INFO L259 McrAutomatonBuilder]: Finished intersection with 248 states and 587 transitions. [2020-04-18 16:05:22,569 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states. [2020-04-18 16:05:22,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 16:05:22,574 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:22,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:22,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1443640527, now seen corresponding path program 2 times [2020-04-18 16:05:22,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:22,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936577255] [2020-04-18 16:05:22,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:22,776 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 16:05:22,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936577255] [2020-04-18 16:05:22,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:05:22,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 16:05:22,778 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:22,782 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:22,820 INFO L259 McrAutomatonBuilder]: Finished intersection with 95 states and 176 transitions. [2020-04-18 16:05:22,820 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:22,889 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 16:05:22,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 16:05:22,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-04-18 16:05:22,890 INFO L87 Difference]: Start difference. First operand 248 states. Second operand 8 states. [2020-04-18 16:05:23,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:23,139 INFO L93 Difference]: Finished difference Result 255 states and 593 transitions. [2020-04-18 16:05:23,139 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 593 transitions. [2020-04-18 16:05:23,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 16:05:23,140 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:05:23,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:23,141 INFO L82 PathProgramCache]: Analyzing trace with hash 637689491, now seen corresponding path program 3 times [2020-04-18 16:05:23,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:23,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638866553] [2020-04-18 16:05:23,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:23,314 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 16:05:23,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638866553] [2020-04-18 16:05:23,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:05:23,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 16:05:23,316 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:23,319 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:23,331 INFO L259 McrAutomatonBuilder]: Finished intersection with 103 states and 192 transitions. [2020-04-18 16:05:23,331 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:23,450 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 12 times. [2020-04-18 16:05:23,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 16:05:23,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-04-18 16:05:23,451 INFO L87 Difference]: Start difference. First operand 255 states and 593 transitions. Second operand 11 states. [2020-04-18 16:05:23,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:23,761 INFO L93 Difference]: Finished difference Result 255 states and 593 transitions. [2020-04-18 16:05:23,761 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 593 transitions. [2020-04-18 16:05:23,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:23,762 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1705865533] [2020-04-18 16:05:23,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:23,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-04-18 16:05:23,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1705865533] [2020-04-18 16:05:23,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 16:05:23,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:23,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 16:05:23,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2020-04-18 16:05:23,765 INFO L87 Difference]: Start difference. First operand 1215 states and 3235 transitions. Second operand 13 states. [2020-04-18 16:05:25,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:25,162 INFO L93 Difference]: Finished difference Result 3032 states and 7815 transitions. [2020-04-18 16:05:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-04-18 16:05:25,163 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2020-04-18 16:05:25,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:25,179 INFO L225 Difference]: With dead ends: 3032 [2020-04-18 16:05:25,179 INFO L226 Difference]: Without dead ends: 2330 [2020-04-18 16:05:25,181 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 74 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=621, Invalid=1929, Unknown=0, NotChecked=0, Total=2550 [2020-04-18 16:05:25,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2330 states. [2020-04-18 16:05:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2330 to 1535. [2020-04-18 16:05:25,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1535 states. [2020-04-18 16:05:25,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 4081 transitions. [2020-04-18 16:05:25,240 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 4081 transitions. Word has length 32 [2020-04-18 16:05:25,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:25,240 INFO L479 AbstractCegarLoop]: Abstraction has 1535 states and 4081 transitions. [2020-04-18 16:05:25,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 16:05:25,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 4081 transitions. [2020-04-18 16:05:25,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 16:05:25,244 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:25,244 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:25,244 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:25,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:25,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1255519260, now seen corresponding path program 1 times [2020-04-18 16:05:25,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:25,245 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [106809481] [2020-04-18 16:05:25,247 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:25,256 INFO L259 McrAutomatonBuilder]: Finished intersection with 428 states and 1067 transitions. [2020-04-18 16:05:25,260 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states. [2020-04-18 16:05:25,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 16:05:25,262 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:25,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:25,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1255519260, now seen corresponding path program 2 times [2020-04-18 16:05:25,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:25,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116608722] [2020-04-18 16:05:25,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:25,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:25,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116608722] [2020-04-18 16:05:25,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987342449] [2020-04-18 16:05:25,425 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:05:25,510 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 16:05:25,510 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:05:25,512 INFO L264 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2020-04-18 16:05:25,519 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:05:25,605 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:05:25,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:05:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:25,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:05:25,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2020-04-18 16:05:25,643 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:25,646 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:25,669 INFO L259 McrAutomatonBuilder]: Finished intersection with 150 states and 301 transitions. [2020-04-18 16:05:25,669 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:25,994 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 20 times. [2020-04-18 16:05:25,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-04-18 16:05:25,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2020-04-18 16:05:25,995 INFO L87 Difference]: Start difference. First operand 428 states. Second operand 22 states. [2020-04-18 16:05:27,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:27,175 INFO L93 Difference]: Finished difference Result 454 states and 1113 transitions. [2020-04-18 16:05:27,175 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 1113 transitions. [2020-04-18 16:05:27,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:05:27,178 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [106809481] [2020-04-18 16:05:27,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:05:27,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-04-18 16:05:27,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [106809481] [2020-04-18 16:05:27,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-04-18 16:05:27,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:05:27,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-04-18 16:05:27,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=1441, Unknown=0, NotChecked=0, Total=1892 [2020-04-18 16:05:27,181 INFO L87 Difference]: Start difference. First operand 1535 states and 4081 transitions. Second operand 22 states. [2020-04-18 16:05:30,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:05:30,355 INFO L93 Difference]: Finished difference Result 5456 states and 13891 transitions. [2020-04-18 16:05:30,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2020-04-18 16:05:30,356 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 37 [2020-04-18 16:05:30,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:05:30,381 INFO L225 Difference]: With dead ends: 5456 [2020-04-18 16:05:30,381 INFO L226 Difference]: Without dead ends: 3708 [2020-04-18 16:05:30,384 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4151 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2184, Invalid=9158, Unknown=0, NotChecked=0, Total=11342 [2020-04-18 16:05:30,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3708 states. [2020-04-18 16:05:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3708 to 2238. [2020-04-18 16:05:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2238 states. [2020-04-18 16:05:30,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 5949 transitions. [2020-04-18 16:05:30,473 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 5949 transitions. Word has length 37 [2020-04-18 16:05:30,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:05:30,474 INFO L479 AbstractCegarLoop]: Abstraction has 2238 states and 5949 transitions. [2020-04-18 16:05:30,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-04-18 16:05:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 5949 transitions. [2020-04-18 16:05:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 16:05:30,481 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:05:30,481 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:05:30,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:05:30,686 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:05:30,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:30,687 INFO L82 PathProgramCache]: Analyzing trace with hash -520422237, now seen corresponding path program 1 times [2020-04-18 16:05:30,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:05:30,688 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [615550592] [2020-04-18 16:05:30,689 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:30,703 INFO L259 McrAutomatonBuilder]: Finished intersection with 773 states and 2002 transitions. [2020-04-18 16:05:30,708 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states. [2020-04-18 16:05:30,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 16:05:30,710 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:05:30,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:05:30,711 INFO L82 PathProgramCache]: Analyzing trace with hash -520422237, now seen corresponding path program 2 times [2020-04-18 16:05:30,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:05:30,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435117530] [2020-04-18 16:05:30,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:05:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:05:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:30,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435117530] [2020-04-18 16:05:30,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930734256] [2020-04-18 16:05:30,881 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:05:30,942 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 16:05:30,942 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:05:30,943 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2020-04-18 16:05:30,946 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:05:31,069 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:05:31,141 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:05:31,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:05:31,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:05:31,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-04-18 16:05:31,154 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:05:31,158 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:05:31,184 INFO L259 McrAutomatonBuilder]: Finished intersection with 200 states and 416 transitions. [2020-04-18 16:05:31,185 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:05:32,953 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 24 times. [2020-04-18 16:05:32,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-04-18 16:05:32,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=470, Unknown=2, NotChecked=0, Total=552 [2020-04-18 16:05:32,954 INFO L87 Difference]: Start difference. First operand 773 states. Second operand 24 states. [2020-04-18 16:05:38,285 WARN L192 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2020-04-18 16:05:46,887 WARN L192 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 30 [2020-04-18 16:06:05,068 WARN L192 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 45 DAG size of output: 20 [2020-04-18 16:06:30,574 WARN L192 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-04-18 16:06:37,463 WARN L192 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2020-04-18 16:06:39,305 WARN L192 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2020-04-18 16:07:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:07:03,447 INFO L93 Difference]: Finished difference Result 1063 states and 2722 transitions. [2020-04-18 16:07:03,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 2722 transitions. [2020-04-18 16:07:03,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 16:07:03,450 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:07:03,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:07:03,451 INFO L82 PathProgramCache]: Analyzing trace with hash -504312169, now seen corresponding path program 3 times [2020-04-18 16:07:03,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:07:03,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196962143] [2020-04-18 16:07:03,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:07:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:07:03,703 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:07:03,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196962143] [2020-04-18 16:07:03,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378094169] [2020-04-18 16:07:03,704 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:07:03,769 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-04-18 16:07:03,770 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:07:03,771 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2020-04-18 16:07:03,780 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:07:03,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:07:03,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:07:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:07:03,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:07:03,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-04-18 16:07:03,904 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:07:03,909 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:07:03,940 INFO L259 McrAutomatonBuilder]: Finished intersection with 215 states and 446 transitions. [2020-04-18 16:07:03,941 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:07:05,365 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 34 times. [2020-04-18 16:07:05,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-04-18 16:07:05,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1347, Invalid=5100, Unknown=33, NotChecked=0, Total=6480 [2020-04-18 16:07:05,368 INFO L87 Difference]: Start difference. First operand 1063 states and 2722 transitions. Second operand 26 states. [2020-04-18 16:07:14,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:07:14,089 INFO L93 Difference]: Finished difference Result 1083 states and 2752 transitions. [2020-04-18 16:07:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 2752 transitions. [2020-04-18 16:07:14,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:07:14,093 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [615550592] [2020-04-18 16:07:14,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:07:14,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-04-18 16:07:14,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [615550592] [2020-04-18 16:07:14,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-04-18 16:07:14,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:07:14,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-04-18 16:07:14,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2519, Invalid=9430, Unknown=41, NotChecked=0, Total=11990 [2020-04-18 16:07:14,098 INFO L87 Difference]: Start difference. First operand 2238 states and 5949 transitions. Second operand 39 states. [2020-04-18 16:07:29,020 WARN L192 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 44 DAG size of output: 18 [2020-04-18 16:07:34,219 WARN L192 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 27 [2020-04-18 16:07:39,581 WARN L192 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-04-18 16:07:57,140 WARN L192 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2020-04-18 16:08:20,808 WARN L192 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-04-18 16:08:22,187 WARN L192 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-04-18 16:08:24,641 WARN L192 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-04-18 16:08:27,423 WARN L192 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2020-04-18 16:08:38,617 WARN L192 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2020-04-18 16:08:43,558 WARN L192 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-04-18 16:08:55,774 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-04-18 16:08:59,817 WARN L192 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2020-04-18 16:09:02,604 WARN L192 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-04-18 16:09:07,625 WARN L192 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-04-18 16:09:09,727 WARN L192 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-04-18 16:09:23,882 WARN L192 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-04-18 16:09:29,111 WARN L192 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-04-18 16:09:31,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:31,971 INFO L93 Difference]: Finished difference Result 9724 states and 24264 transitions. [2020-04-18 16:09:31,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2020-04-18 16:09:31,971 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 42 [2020-04-18 16:09:31,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:09:32,003 INFO L225 Difference]: With dead ends: 9724 [2020-04-18 16:09:32,003 INFO L226 Difference]: Without dead ends: 6872 [2020-04-18 16:09:32,011 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 219 SyntacticMatches, 13 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26792 ImplicationChecksByTransitivity, 136.7s TimeCoverageRelationStatistics Valid=8300, Invalid=50840, Unknown=152, NotChecked=0, Total=59292 [2020-04-18 16:09:32,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6872 states. [2020-04-18 16:09:32,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6872 to 2884. [2020-04-18 16:09:32,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2884 states. [2020-04-18 16:09:32,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2884 states to 2884 states and 7684 transitions. [2020-04-18 16:09:32,132 INFO L78 Accepts]: Start accepts. Automaton has 2884 states and 7684 transitions. Word has length 42 [2020-04-18 16:09:32,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:09:32,133 INFO L479 AbstractCegarLoop]: Abstraction has 2884 states and 7684 transitions. [2020-04-18 16:09:32,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-04-18 16:09:32,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2884 states and 7684 transitions. [2020-04-18 16:09:32,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 16:09:32,141 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:09:32,141 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 16:09:32,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:32,545 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:09:32,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:32,546 INFO L82 PathProgramCache]: Analyzing trace with hash 490795132, now seen corresponding path program 4 times [2020-04-18 16:09:32,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:09:32,547 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [420443490] [2020-04-18 16:09:32,548 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:32,569 INFO L259 McrAutomatonBuilder]: Finished intersection with 1118 states and 2937 transitions. [2020-04-18 16:09:32,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states. [2020-04-18 16:09:32,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 16:09:32,580 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:09:32,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:32,580 INFO L82 PathProgramCache]: Analyzing trace with hash 490795132, now seen corresponding path program 5 times [2020-04-18 16:09:32,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:32,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369909882] [2020-04-18 16:09:32,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:32,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369909882] [2020-04-18 16:09:32,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528765094] [2020-04-18 16:09:32,859 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:32,914 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-04-18 16:09:32,914 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:09:32,915 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2020-04-18 16:09:32,917 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:09:33,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:33,075 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:33,081 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:33,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:09:33,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2020-04-18 16:09:33,082 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:33,086 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:33,120 INFO L259 McrAutomatonBuilder]: Finished intersection with 250 states and 531 transitions. [2020-04-18 16:09:33,120 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:33,404 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 23 times. [2020-04-18 16:09:33,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-04-18 16:09:33,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2020-04-18 16:09:33,405 INFO L87 Difference]: Start difference. First operand 1118 states. Second operand 21 states. [2020-04-18 16:09:36,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:36,249 INFO L93 Difference]: Finished difference Result 1571 states and 4124 transitions. [2020-04-18 16:09:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 4124 transitions. [2020-04-18 16:09:36,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 16:09:36,254 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:09:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:36,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1056846766, now seen corresponding path program 6 times [2020-04-18 16:09:36,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:36,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091986054] [2020-04-18 16:09:36,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:36,477 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:36,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091986054] [2020-04-18 16:09:36,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981475973] [2020-04-18 16:09:36,478 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:36,537 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-04-18 16:09:36,537 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:09:36,538 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2020-04-18 16:09:36,539 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:09:36,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:36,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:36,657 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:36,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:09:36,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2020-04-18 16:09:36,658 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:36,661 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:36,686 INFO L259 McrAutomatonBuilder]: Finished intersection with 205 states and 421 transitions. [2020-04-18 16:09:36,686 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:37,163 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 18 times. [2020-04-18 16:09:37,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 16:09:37,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1086, Invalid=4316, Unknown=0, NotChecked=0, Total=5402 [2020-04-18 16:09:37,165 INFO L87 Difference]: Start difference. First operand 1571 states and 4124 transitions. Second operand 23 states. [2020-04-18 16:09:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:40,444 INFO L93 Difference]: Finished difference Result 1686 states and 4322 transitions. [2020-04-18 16:09:40,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 4322 transitions. [2020-04-18 16:09:40,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 16:09:40,449 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:09:40,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:40,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1297860856, now seen corresponding path program 7 times [2020-04-18 16:09:40,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:40,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673313116] [2020-04-18 16:09:40,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:40,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673313116] [2020-04-18 16:09:40,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191729035] [2020-04-18 16:09:40,614 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:40,658 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2020-04-18 16:09:40,660 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:09:40,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:40,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:40,780 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:40,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:09:40,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2020-04-18 16:09:40,781 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:40,785 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:40,864 INFO L259 McrAutomatonBuilder]: Finished intersection with 265 states and 561 transitions. [2020-04-18 16:09:40,864 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:41,487 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 33 times. [2020-04-18 16:09:41,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 16:09:41,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3136, Invalid=13634, Unknown=0, NotChecked=0, Total=16770 [2020-04-18 16:09:41,489 INFO L87 Difference]: Start difference. First operand 1686 states and 4322 transitions. Second operand 23 states. [2020-04-18 16:09:45,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:45,084 INFO L93 Difference]: Finished difference Result 1735 states and 4394 transitions. [2020-04-18 16:09:45,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 4394 transitions. [2020-04-18 16:09:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 16:09:45,088 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 16:09:45,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:45,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1038481700, now seen corresponding path program 8 times [2020-04-18 16:09:45,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:45,089 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278077666] [2020-04-18 16:09:45,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:45,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278077666] [2020-04-18 16:09:45,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690925129] [2020-04-18 16:09:45,249 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:45,292 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 16:09:45,293 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:09:45,293 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2020-04-18 16:09:45,295 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:09:45,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:45,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:45,967 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:45,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:09:45,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2020-04-18 16:09:45,967 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:45,971 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:46,055 INFO L259 McrAutomatonBuilder]: Finished intersection with 280 states and 591 transitions. [2020-04-18 16:09:46,056 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:09:46,811 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 43 times. [2020-04-18 16:09:46,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-04-18 16:09:46,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5291, Invalid=25509, Unknown=0, NotChecked=0, Total=30800 [2020-04-18 16:09:46,813 INFO L87 Difference]: Start difference. First operand 1735 states and 4394 transitions. Second operand 25 states. [2020-04-18 16:09:54,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:09:54,433 INFO L93 Difference]: Finished difference Result 1754 states and 4409 transitions. [2020-04-18 16:09:54,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 4409 transitions. [2020-04-18 16:09:54,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-04-18 16:09:54,436 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 16:09:54,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:09:54,436 INFO L82 PathProgramCache]: Analyzing trace with hash 728987418, now seen corresponding path program 9 times [2020-04-18 16:09:54,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:09:54,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140731570] [2020-04-18 16:09:54,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:09:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:09:54,611 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:54,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140731570] [2020-04-18 16:09:54,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652409496] [2020-04-18 16:09:54,612 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:54,656 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-04-18 16:09:54,656 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 16:09:54,657 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjunts are in the unsatisfiable core [2020-04-18 16:09:54,659 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 16:09:54,785 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:55,948 WARN L192 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2020-04-18 16:09:55,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 16:09:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:09:55,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 16:09:55,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2020-04-18 16:09:55,957 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:09:55,961 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:09:55,991 INFO L259 McrAutomatonBuilder]: Finished intersection with 248 states and 507 transitions. [2020-04-18 16:09:55,991 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. Received shutdown request... [2020-04-18 16:09:57,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 16:09:57,576 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 16:09:57,583 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 16:09:57,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:09:57 BasicIcfg [2020-04-18 16:09:57,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:09:57,585 INFO L168 Benchmark]: Toolchain (without parser) took 279157.44 ms. Allocated memory was 137.9 MB in the beginning and 532.7 MB in the end (delta: 394.8 MB). Free memory was 101.3 MB in the beginning and 393.1 MB in the end (delta: -291.7 MB). Peak memory consumption was 450.0 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:57,585 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 16:09:57,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.55 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.3 MB in the beginning and 159.7 MB in the end (delta: -60.3 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:57,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.91 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 157.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:57,587 INFO L168 Benchmark]: Boogie Preprocessor took 26.14 ms. Allocated memory is still 202.4 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:57,588 INFO L168 Benchmark]: RCFGBuilder took 431.87 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 135.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:57,589 INFO L168 Benchmark]: TraceAbstraction took 277902.63 ms. Allocated memory was 202.4 MB in the beginning and 532.7 MB in the end (delta: 330.3 MB). Free memory was 135.2 MB in the beginning and 393.1 MB in the end (delta: -257.9 MB). Peak memory consumption was 419.3 MB. Max. memory is 7.1 GB. [2020-04-18 16:09:57,592 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.55 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 99.3 MB in the beginning and 159.7 MB in the end (delta: -60.3 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.91 ms. Allocated memory is still 202.4 MB. Free memory was 159.7 MB in the beginning and 157.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.14 ms. Allocated memory is still 202.4 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.87 ms. Allocated memory is still 202.4 MB. Free memory was 156.3 MB in the beginning and 135.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 277902.63 ms. Allocated memory was 202.4 MB in the beginning and 532.7 MB in the end (delta: 330.3 MB). Free memory was 135.2 MB in the beginning and 393.1 MB in the end (delta: -257.9 MB). Peak memory consumption was 419.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 711]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 711). Cancelled while BasicCegarLoop was analyzing trace of length 48 with TraceHistMax 3,while PredicateComparison was comparing new predicate (quantifier-free) to 205 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 277.7s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 143.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 748 SDtfs, 4859 SDslu, 10345 SDs, 0 SdLazy, 2816 SolverSat, 468 SolverUnsat, 77 SolverUnknown, 0 SolverNotchecked, 39.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 884 GetRequests, 431 SyntacticMatches, 18 SemanticMatches, 435 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32076 ImplicationChecksByTransitivity, 142.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2884occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 7133 StatesRemovedByMinimization, 5 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 could not prove your program: Timeout Completed graceful shutdown