/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 06:18:50,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 06:18:50,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 06:18:50,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 06:18:50,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 06:18:50,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 06:18:50,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 06:18:50,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 06:18:50,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 06:18:50,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 06:18:50,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 06:18:50,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 06:18:50,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 06:18:50,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 06:18:50,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 06:18:50,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 06:18:50,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 06:18:50,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 06:18:50,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 06:18:50,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 06:18:50,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 06:18:50,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 06:18:50,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 06:18:50,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 06:18:50,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 06:18:50,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 06:18:50,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 06:18:50,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 06:18:50,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 06:18:50,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 06:18:50,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 06:18:50,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 06:18:50,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 06:18:50,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 06:18:50,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 06:18:50,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 06:18:50,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 06:18:50,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 06:18:50,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 06:18:50,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 06:18:50,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 06:18:50,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 06:18:50,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 06:18:50,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 06:18:50,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 06:18:50,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 06:18:50,296 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 06:18:50,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 06:18:50,296 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 06:18:50,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 06:18:50,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 06:18:50,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 06:18:50,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 06:18:50,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 06:18:50,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 06:18:50,299 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 06:18:50,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 06:18:50,299 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 06:18:50,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 06:18:50,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 06:18:50,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 06:18:50,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 06:18:50,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 06:18:50,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 06:18:50,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 06:18:50,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 06:18:50,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 06:18:50,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 06:18:50,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 06:18:50,301 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 06:18:50,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 06:18:50,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 06:18:50,598 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 06:18:50,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 06:18:50,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 06:18:50,623 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 06:18:50,624 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 06:18:50,625 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-04-18 06:18:50,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af549d49/ad8e1391907a44ddaf7d6fb1392ada84/FLAGa02664c16 [2020-04-18 06:18:51,248 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 06:18:51,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2020-04-18 06:18:51,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af549d49/ad8e1391907a44ddaf7d6fb1392ada84/FLAGa02664c16 [2020-04-18 06:18:51,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af549d49/ad8e1391907a44ddaf7d6fb1392ada84 [2020-04-18 06:18:51,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 06:18:51,535 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 06:18:51,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 06:18:51,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 06:18:51,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 06:18:51,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:18:51" (1/1) ... [2020-04-18 06:18:51,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e929f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:51, skipping insertion in model container [2020-04-18 06:18:51,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:18:51" (1/1) ... [2020-04-18 06:18:51,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 06:18:51,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 06:18:52,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 06:18:52,125 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 06:18:52,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 06:18:52,282 INFO L208 MainTranslator]: Completed translation [2020-04-18 06:18:52,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52 WrapperNode [2020-04-18 06:18:52,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 06:18:52,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 06:18:52,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 06:18:52,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 06:18:52,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (1/1) ... [2020-04-18 06:18:52,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (1/1) ... [2020-04-18 06:18:52,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 06:18:52,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 06:18:52,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 06:18:52,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 06:18:52,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (1/1) ... [2020-04-18 06:18:52,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (1/1) ... [2020-04-18 06:18:52,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (1/1) ... [2020-04-18 06:18:52,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (1/1) ... [2020-04-18 06:18:52,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (1/1) ... [2020-04-18 06:18:52,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (1/1) ... [2020-04-18 06:18:52,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (1/1) ... [2020-04-18 06:18:52,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 06:18:52,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 06:18:52,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 06:18:52,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 06:18:52,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (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 06:18:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 06:18:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 06:18:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 06:18:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 06:18:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 06:18:52,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 06:18:52,427 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 06:18:52,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 06:18:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 06:18:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 06:18:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 06:18:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 06:18:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 06:18:52,430 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 06:18:52,789 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 06:18:52,789 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 06:18:52,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:18:52 BoogieIcfgContainer [2020-04-18 06:18:52,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 06:18:52,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 06:18:52,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 06:18:52,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 06:18:52,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:18:51" (1/3) ... [2020-04-18 06:18:52,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea23ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:18:52, skipping insertion in model container [2020-04-18 06:18:52,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:18:52" (2/3) ... [2020-04-18 06:18:52,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea23ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:18:52, skipping insertion in model container [2020-04-18 06:18:52,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:18:52" (3/3) ... [2020-04-18 06:18:52,802 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2020-04-18 06:18:52,814 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 06:18:52,815 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 06:18:52,823 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 06:18:52,824 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 06:18:52,857 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,857 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,857 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,859 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,859 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,859 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,860 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,860 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,861 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,861 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,861 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,862 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,862 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,863 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,863 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,863 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,863 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,864 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,868 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,868 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,869 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,869 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,877 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,878 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,878 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,878 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,882 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,882 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,882 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,882 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 06:18:52,902 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 06:18:52,923 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 06:18:52,923 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 06:18:52,923 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 06:18:52,923 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 06:18:52,923 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 06:18:52,924 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 06:18:52,924 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 06:18:52,924 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 06:18:52,942 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 06:18:53,371 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8471 states. [2020-04-18 06:18:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand 8471 states. [2020-04-18 06:18:53,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 06:18:53,417 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:53,418 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:53,419 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:53,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:53,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1862511890, now seen corresponding path program 1 times [2020-04-18 06:18:53,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:53,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916702117] [2020-04-18 06:18:53,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:53,914 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 06:18:53,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916702117] [2020-04-18 06:18:53,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:53,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 06:18:53,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222157201] [2020-04-18 06:18:53,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 06:18:53,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:53,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 06:18:53,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 06:18:53,943 INFO L87 Difference]: Start difference. First operand 8471 states. Second operand 6 states. [2020-04-18 06:18:54,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:54,543 INFO L93 Difference]: Finished difference Result 20295 states and 70269 transitions. [2020-04-18 06:18:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 06:18:54,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-04-18 06:18:54,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:54,629 INFO L225 Difference]: With dead ends: 20295 [2020-04-18 06:18:54,630 INFO L226 Difference]: Without dead ends: 6443 [2020-04-18 06:18:54,636 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 06:18:54,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6443 states. [2020-04-18 06:18:55,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6443 to 5309. [2020-04-18 06:18:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5309 states. [2020-04-18 06:18:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 17850 transitions. [2020-04-18 06:18:55,117 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 17850 transitions. Word has length 35 [2020-04-18 06:18:55,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:55,120 INFO L479 AbstractCegarLoop]: Abstraction has 5309 states and 17850 transitions. [2020-04-18 06:18:55,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 06:18:55,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 17850 transitions. [2020-04-18 06:18:55,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 06:18:55,135 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:55,135 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:55,135 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:55,136 INFO L82 PathProgramCache]: Analyzing trace with hash 5191571, now seen corresponding path program 1 times [2020-04-18 06:18:55,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:55,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708540540] [2020-04-18 06:18:55,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:55,364 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 06:18:55,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708540540] [2020-04-18 06:18:55,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:55,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:18:55,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2555632] [2020-04-18 06:18:55,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:18:55,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:55,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:18:55,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:18:55,377 INFO L87 Difference]: Start difference. First operand 5309 states and 17850 transitions. Second operand 7 states. [2020-04-18 06:18:55,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:55,742 INFO L93 Difference]: Finished difference Result 7791 states and 25742 transitions. [2020-04-18 06:18:55,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 06:18:55,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-04-18 06:18:55,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:55,908 INFO L225 Difference]: With dead ends: 7791 [2020-04-18 06:18:55,908 INFO L226 Difference]: Without dead ends: 5843 [2020-04-18 06:18:55,909 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 06:18:55,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5843 states. [2020-04-18 06:18:56,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 4724. [2020-04-18 06:18:56,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4724 states. [2020-04-18 06:18:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4724 states to 4724 states and 15706 transitions. [2020-04-18 06:18:56,096 INFO L78 Accepts]: Start accepts. Automaton has 4724 states and 15706 transitions. Word has length 37 [2020-04-18 06:18:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:56,098 INFO L479 AbstractCegarLoop]: Abstraction has 4724 states and 15706 transitions. [2020-04-18 06:18:56,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:18:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 4724 states and 15706 transitions. [2020-04-18 06:18:56,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 06:18:56,111 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:56,111 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:56,111 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:56,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:56,112 INFO L82 PathProgramCache]: Analyzing trace with hash -424900641, now seen corresponding path program 1 times [2020-04-18 06:18:56,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:56,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065379158] [2020-04-18 06:18:56,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:56,309 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 06:18:56,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065379158] [2020-04-18 06:18:56,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:56,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:18:56,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191443318] [2020-04-18 06:18:56,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:18:56,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:56,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:18:56,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:18:56,312 INFO L87 Difference]: Start difference. First operand 4724 states and 15706 transitions. Second operand 7 states. [2020-04-18 06:18:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:56,598 INFO L93 Difference]: Finished difference Result 6405 states and 21104 transitions. [2020-04-18 06:18:56,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 06:18:56,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-04-18 06:18:56,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:56,632 INFO L225 Difference]: With dead ends: 6405 [2020-04-18 06:18:56,632 INFO L226 Difference]: Without dead ends: 5493 [2020-04-18 06:18:56,633 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 06:18:56,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states. [2020-04-18 06:18:57,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 4580. [2020-04-18 06:18:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4580 states. [2020-04-18 06:18:57,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 15166 transitions. [2020-04-18 06:18:57,248 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 15166 transitions. Word has length 38 [2020-04-18 06:18:57,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:57,249 INFO L479 AbstractCegarLoop]: Abstraction has 4580 states and 15166 transitions. [2020-04-18 06:18:57,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:18:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 15166 transitions. [2020-04-18 06:18:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 06:18:57,260 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:57,260 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:57,261 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:57,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:57,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1411644236, now seen corresponding path program 1 times [2020-04-18 06:18:57,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:57,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985420862] [2020-04-18 06:18:57,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:57,387 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 06:18:57,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985420862] [2020-04-18 06:18:57,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:57,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:18:57,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265020739] [2020-04-18 06:18:57,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:18:57,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:57,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:18:57,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:18:57,390 INFO L87 Difference]: Start difference. First operand 4580 states and 15166 transitions. Second operand 7 states. [2020-04-18 06:18:57,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:57,688 INFO L93 Difference]: Finished difference Result 6755 states and 21870 transitions. [2020-04-18 06:18:57,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 06:18:57,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-04-18 06:18:57,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:57,720 INFO L225 Difference]: With dead ends: 6755 [2020-04-18 06:18:57,720 INFO L226 Difference]: Without dead ends: 5283 [2020-04-18 06:18:57,721 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 06:18:57,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5283 states. [2020-04-18 06:18:57,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5283 to 3896. [2020-04-18 06:18:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3896 states. [2020-04-18 06:18:57,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 12781 transitions. [2020-04-18 06:18:57,849 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 12781 transitions. Word has length 40 [2020-04-18 06:18:57,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:57,849 INFO L479 AbstractCegarLoop]: Abstraction has 3896 states and 12781 transitions. [2020-04-18 06:18:57,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:18:57,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 12781 transitions. [2020-04-18 06:18:57,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 06:18:57,857 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:57,858 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:57,858 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:57,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:57,858 INFO L82 PathProgramCache]: Analyzing trace with hash -427296066, now seen corresponding path program 1 times [2020-04-18 06:18:57,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:57,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904556192] [2020-04-18 06:18:57,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:57,982 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 06:18:57,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904556192] [2020-04-18 06:18:57,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:57,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:18:57,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966800402] [2020-04-18 06:18:57,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:18:57,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:57,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:18:57,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:18:57,985 INFO L87 Difference]: Start difference. First operand 3896 states and 12781 transitions. Second operand 7 states. [2020-04-18 06:18:58,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:58,254 INFO L93 Difference]: Finished difference Result 5077 states and 16544 transitions. [2020-04-18 06:18:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 06:18:58,254 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-04-18 06:18:58,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:58,269 INFO L225 Difference]: With dead ends: 5077 [2020-04-18 06:18:58,269 INFO L226 Difference]: Without dead ends: 4453 [2020-04-18 06:18:58,270 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 06:18:58,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4453 states. [2020-04-18 06:18:58,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4453 to 3656. [2020-04-18 06:18:58,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3656 states. [2020-04-18 06:18:58,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 11929 transitions. [2020-04-18 06:18:58,375 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 11929 transitions. Word has length 40 [2020-04-18 06:18:58,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:58,376 INFO L479 AbstractCegarLoop]: Abstraction has 3656 states and 11929 transitions. [2020-04-18 06:18:58,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:18:58,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 11929 transitions. [2020-04-18 06:18:58,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 06:18:58,383 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:58,384 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:58,384 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:58,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:58,384 INFO L82 PathProgramCache]: Analyzing trace with hash 730747382, now seen corresponding path program 1 times [2020-04-18 06:18:58,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:58,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206941002] [2020-04-18 06:18:58,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:58,523 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 06:18:58,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206941002] [2020-04-18 06:18:58,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:58,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 06:18:58,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743931369] [2020-04-18 06:18:58,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 06:18:58,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:58,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 06:18:58,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-04-18 06:18:58,526 INFO L87 Difference]: Start difference. First operand 3656 states and 11929 transitions. Second operand 8 states. [2020-04-18 06:18:58,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:58,656 INFO L93 Difference]: Finished difference Result 5264 states and 16991 transitions. [2020-04-18 06:18:58,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 06:18:58,656 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-04-18 06:18:58,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:58,667 INFO L225 Difference]: With dead ends: 5264 [2020-04-18 06:18:58,667 INFO L226 Difference]: Without dead ends: 2797 [2020-04-18 06:18:58,668 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-04-18 06:18:58,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2020-04-18 06:18:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2385. [2020-04-18 06:18:58,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2385 states. [2020-04-18 06:18:58,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 7573 transitions. [2020-04-18 06:18:58,735 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 7573 transitions. Word has length 41 [2020-04-18 06:18:58,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:58,736 INFO L479 AbstractCegarLoop]: Abstraction has 2385 states and 7573 transitions. [2020-04-18 06:18:58,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 06:18:58,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 7573 transitions. [2020-04-18 06:18:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 06:18:58,743 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:58,743 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:58,744 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:58,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:58,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1555771325, now seen corresponding path program 1 times [2020-04-18 06:18:58,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:58,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477946482] [2020-04-18 06:18:58,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:58,876 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 06:18:58,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477946482] [2020-04-18 06:18:58,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:58,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:18:58,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768895763] [2020-04-18 06:18:58,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:18:58,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:58,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:18:58,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:18:58,880 INFO L87 Difference]: Start difference. First operand 2385 states and 7573 transitions. Second operand 7 states. [2020-04-18 06:18:59,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:59,001 INFO L93 Difference]: Finished difference Result 3765 states and 11920 transitions. [2020-04-18 06:18:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-18 06:18:59,002 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-04-18 06:18:59,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:59,012 INFO L225 Difference]: With dead ends: 3765 [2020-04-18 06:18:59,012 INFO L226 Difference]: Without dead ends: 2095 [2020-04-18 06:18:59,013 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-04-18 06:18:59,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2020-04-18 06:18:59,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2095. [2020-04-18 06:18:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2020-04-18 06:18:59,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 6648 transitions. [2020-04-18 06:18:59,160 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 6648 transitions. Word has length 43 [2020-04-18 06:18:59,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:59,160 INFO L479 AbstractCegarLoop]: Abstraction has 2095 states and 6648 transitions. [2020-04-18 06:18:59,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:18:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 6648 transitions. [2020-04-18 06:18:59,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 06:18:59,165 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:59,165 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:59,165 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:59,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:59,166 INFO L82 PathProgramCache]: Analyzing trace with hash -2102758147, now seen corresponding path program 2 times [2020-04-18 06:18:59,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:59,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708727009] [2020-04-18 06:18:59,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:59,257 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 06:18:59,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708727009] [2020-04-18 06:18:59,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:59,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:18:59,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755159362] [2020-04-18 06:18:59,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:18:59,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:59,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:18:59,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:18:59,259 INFO L87 Difference]: Start difference. First operand 2095 states and 6648 transitions. Second operand 7 states. [2020-04-18 06:18:59,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:59,355 INFO L93 Difference]: Finished difference Result 2527 states and 7904 transitions. [2020-04-18 06:18:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 06:18:59,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-04-18 06:18:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:59,359 INFO L225 Difference]: With dead ends: 2527 [2020-04-18 06:18:59,359 INFO L226 Difference]: Without dead ends: 1147 [2020-04-18 06:18:59,360 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-04-18 06:18:59,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2020-04-18 06:18:59,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2020-04-18 06:18:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2020-04-18 06:18:59,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 3457 transitions. [2020-04-18 06:18:59,385 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 3457 transitions. Word has length 43 [2020-04-18 06:18:59,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:59,385 INFO L479 AbstractCegarLoop]: Abstraction has 1147 states and 3457 transitions. [2020-04-18 06:18:59,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:18:59,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 3457 transitions. [2020-04-18 06:18:59,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 06:18:59,387 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:59,387 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:59,388 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:59,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:59,388 INFO L82 PathProgramCache]: Analyzing trace with hash -2051673357, now seen corresponding path program 3 times [2020-04-18 06:18:59,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:59,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810412784] [2020-04-18 06:18:59,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:59,475 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 06:18:59,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810412784] [2020-04-18 06:18:59,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:59,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 06:18:59,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130227018] [2020-04-18 06:18:59,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 06:18:59,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:59,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 06:18:59,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 06:18:59,477 INFO L87 Difference]: Start difference. First operand 1147 states and 3457 transitions. Second operand 6 states. [2020-04-18 06:18:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:59,584 INFO L93 Difference]: Finished difference Result 1348 states and 4008 transitions. [2020-04-18 06:18:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 06:18:59,585 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-04-18 06:18:59,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:59,588 INFO L225 Difference]: With dead ends: 1348 [2020-04-18 06:18:59,588 INFO L226 Difference]: Without dead ends: 1012 [2020-04-18 06:18:59,589 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 06:18:59,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2020-04-18 06:18:59,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2020-04-18 06:18:59,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2020-04-18 06:18:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 3007 transitions. [2020-04-18 06:18:59,611 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 3007 transitions. Word has length 43 [2020-04-18 06:18:59,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:59,612 INFO L479 AbstractCegarLoop]: Abstraction has 1012 states and 3007 transitions. [2020-04-18 06:18:59,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 06:18:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 3007 transitions. [2020-04-18 06:18:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 06:18:59,614 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:59,614 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:59,614 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:59,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1395128952, now seen corresponding path program 1 times [2020-04-18 06:18:59,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:59,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228523627] [2020-04-18 06:18:59,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:59,713 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 06:18:59,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228523627] [2020-04-18 06:18:59,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:59,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 06:18:59,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341003933] [2020-04-18 06:18:59,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 06:18:59,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:59,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 06:18:59,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 06:18:59,715 INFO L87 Difference]: Start difference. First operand 1012 states and 3007 transitions. Second operand 7 states. [2020-04-18 06:18:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:18:59,835 INFO L93 Difference]: Finished difference Result 904 states and 2587 transitions. [2020-04-18 06:18:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 06:18:59,835 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-04-18 06:18:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:18:59,837 INFO L225 Difference]: With dead ends: 904 [2020-04-18 06:18:59,838 INFO L226 Difference]: Without dead ends: 652 [2020-04-18 06:18:59,838 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-04-18 06:18:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2020-04-18 06:18:59,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2020-04-18 06:18:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-04-18 06:18:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1822 transitions. [2020-04-18 06:18:59,851 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1822 transitions. Word has length 44 [2020-04-18 06:18:59,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:18:59,851 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 1822 transitions. [2020-04-18 06:18:59,852 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 06:18:59,852 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1822 transitions. [2020-04-18 06:18:59,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 06:18:59,853 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 06:18:59,853 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 06:18:59,854 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 06:18:59,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 06:18:59,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1761307537, now seen corresponding path program 1 times [2020-04-18 06:18:59,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 06:18:59,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468591289] [2020-04-18 06:18:59,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 06:18:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 06:18:59,948 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 06:18:59,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468591289] [2020-04-18 06:18:59,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 06:18:59,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 06:18:59,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182862223] [2020-04-18 06:18:59,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 06:18:59,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 06:18:59,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 06:18:59,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 06:18:59,950 INFO L87 Difference]: Start difference. First operand 652 states and 1822 transitions. Second operand 8 states. [2020-04-18 06:19:00,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 06:19:00,034 INFO L93 Difference]: Finished difference Result 355 states and 931 transitions. [2020-04-18 06:19:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 06:19:00,034 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-04-18 06:19:00,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 06:19:00,034 INFO L225 Difference]: With dead ends: 355 [2020-04-18 06:19:00,035 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 06:19:00,035 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-04-18 06:19:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 06:19:00,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 06:19:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 06:19:00,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 06:19:00,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 06:19:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 06:19:00,036 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 06:19:00,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 06:19:00,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 06:19:00,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 06:19:00,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:19:00 BasicIcfg [2020-04-18 06:19:00,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 06:19:00,047 INFO L168 Benchmark]: Toolchain (without parser) took 8527.61 ms. Allocated memory was 146.8 MB in the beginning and 484.4 MB in the end (delta: 337.6 MB). Free memory was 103.4 MB in the beginning and 206.4 MB in the end (delta: -103.0 MB). Peak memory consumption was 234.7 MB. Max. memory is 7.1 GB. [2020-04-18 06:19:00,048 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 06:19:00,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.02 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 161.6 MB in the end (delta: -60.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-04-18 06:19:00,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.76 ms. Allocated memory is still 204.5 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 06:19:00,055 INFO L168 Benchmark]: Boogie Preprocessor took 26.87 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 06:19:00,056 INFO L168 Benchmark]: RCFGBuilder took 435.69 ms. Allocated memory is still 204.5 MB. Free memory was 157.6 MB in the beginning and 136.1 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-04-18 06:19:00,062 INFO L168 Benchmark]: TraceAbstraction took 7249.57 ms. Allocated memory was 204.5 MB in the beginning and 484.4 MB in the end (delta: 280.0 MB). Free memory was 135.4 MB in the beginning and 206.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 209.0 MB. Max. memory is 7.1 GB. [2020-04-18 06:19:00,071 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 747.02 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 161.6 MB in the end (delta: -60.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.76 ms. Allocated memory is still 204.5 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.87 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 435.69 ms. Allocated memory is still 204.5 MB. Free memory was 157.6 MB in the beginning and 136.1 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7249.57 ms. Allocated memory was 204.5 MB in the beginning and 484.4 MB in the end (delta: 280.0 MB). Free memory was 135.4 MB in the beginning and 206.4 MB in the end (delta: -71.0 MB). Peak memory consumption was 209.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 1016 SDtfs, 1523 SDslu, 3440 SDs, 0 SdLazy, 483 SolverSat, 89 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8471occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 5762 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 449 NumberOfCodeBlocks, 449 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 438 ConstructedInterpolants, 0 QuantifiedInterpolants, 83156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...