/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-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:46:27,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:46:27,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:46:27,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:46:27,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:46:27,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:46:27,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:46:27,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:46:27,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:46:27,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:46:27,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:46:27,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:46:27,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:46:27,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:46:27,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:46:27,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:46:27,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:46:27,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:46:27,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:46:27,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:46:27,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:46:27,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:46:27,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:46:27,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:46:27,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:46:27,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:46:27,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:46:27,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:46:27,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:46:27,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:46:27,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:46:27,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:46:27,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:46:27,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:46:27,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:46:27,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:46:27,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:46:27,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:46:27,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:46:27,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:46:27,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:46:27,974 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-VariableLbe-McrStrategy.epf [2020-04-18 15:46:27,989 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:46:27,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:46:27,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:46:27,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:46:27,991 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:46:27,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:46:27,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:46:27,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:46:27,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:46:27,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:46:27,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:46:27,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:46:27,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:46:27,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:46:27,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:46:27,995 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:46:27,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:46:27,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:46:27,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:46:27,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:46:27,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:46:27,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:46:27,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:46:27,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:46:27,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:46:27,998 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:46:27,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:46:27,998 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:46:27,998 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:46:27,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:46:27,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:46:28,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:46:28,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:46:28,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:46:28,272 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:46:28,272 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:46:28,273 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-04-18 15:46:28,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d378557/a7b98ab1116c4d6ba33d370847930fd2/FLAGc283fafee [2020-04-18 15:46:28,863 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:46:28,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-04-18 15:46:28,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d378557/a7b98ab1116c4d6ba33d370847930fd2/FLAGc283fafee [2020-04-18 15:46:29,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95d378557/a7b98ab1116c4d6ba33d370847930fd2 [2020-04-18 15:46:29,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:46:29,231 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:46:29,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:46:29,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:46:29,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:46:29,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10143938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29, skipping insertion in model container [2020-04-18 15:46:29,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:46:29,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:46:29,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:46:29,764 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:46:29,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:46:29,902 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:46:29,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29 WrapperNode [2020-04-18 15:46:29,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:46:29,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:46:29,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:46:29,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:46:29,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:46:29,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:46:29,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:46:29,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:46:29,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:29,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (1/1) ... [2020-04-18 15:46:30,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:46:30,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:46:30,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:46:30,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:46:30,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (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 15:46:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:46:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:46:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:46:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:46:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:46:30,069 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:46:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:46:30,069 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:46:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 15:46:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 15:46:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:46:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:46:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:46:30,072 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 15:46:30,421 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:46:30,421 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:46:30,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:46:30 BoogieIcfgContainer [2020-04-18 15:46:30,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:46:30,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:46:30,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:46:30,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:46:30,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:46:29" (1/3) ... [2020-04-18 15:46:30,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1300b517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:46:30, skipping insertion in model container [2020-04-18 15:46:30,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:46:29" (2/3) ... [2020-04-18 15:46:30,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1300b517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:46:30, skipping insertion in model container [2020-04-18 15:46:30,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:46:30" (3/3) ... [2020-04-18 15:46:30,437 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.opt.i [2020-04-18 15:46:30,446 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:46:30,446 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:46:30,452 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:46:30,453 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:46:30,484 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,485 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,485 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,485 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,486 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,486 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,487 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,487 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,487 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,487 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,488 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,488 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,489 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,489 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,489 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,489 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,490 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,490 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,494 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,495 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,495 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,495 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,514 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,515 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,515 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,515 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,524 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,524 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,524 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,525 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:46:30,545 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 15:46:30,567 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:46:30,567 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:46:30,567 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:46:30,568 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:46:30,568 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:46:30,568 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:46:30,568 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:46:30,568 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:46:30,585 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-04-18 15:46:30,587 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:46:30,648 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:46:30,648 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:46:30,653 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:46:30,656 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-04-18 15:46:30,678 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-04-18 15:46:30,679 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:46:30,679 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-18 15:46:30,684 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-18 15:46:30,687 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:46:31,866 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-04-18 15:46:31,981 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-04-18 15:46:31,981 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-04-18 15:46:31,985 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-04-18 15:46:32,013 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-04-18 15:46:32,015 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-04-18 15:46:32,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:46:32,023 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:32,024 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:32,024 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:32,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:32,030 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-04-18 15:46:32,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:32,038 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [178578939] [2020-04-18 15:46:32,053 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:32,066 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:46:32,067 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-04-18 15:46:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-18 15:46:32,068 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:32,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:32,068 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 2 times [2020-04-18 15:46:32,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:32,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886840280] [2020-04-18 15:46:32,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:46:32,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886840280] [2020-04-18 15:46:32,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:32,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:46:32,255 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:32,257 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:32,263 INFO L259 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-04-18 15:46:32,263 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:32,267 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:46:32,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:46:32,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:46:32,274 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2020-04-18 15:46:32,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:32,279 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-04-18 15:46:32,279 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-04-18 15:46:32,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:32,280 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [178578939] [2020-04-18 15:46:32,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:32,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:46:32,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [178578939] [2020-04-18 15:46:32,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 15:46:32,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:32,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 15:46:32,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:46:32,288 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-04-18 15:46:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:32,321 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-04-18 15:46:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 15:46:32,323 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-04-18 15:46:32,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:32,338 INFO L225 Difference]: With dead ends: 362 [2020-04-18 15:46:32,338 INFO L226 Difference]: Without dead ends: 298 [2020-04-18 15:46:32,339 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 15:46:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-04-18 15:46:32,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-04-18 15:46:32,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-04-18 15:46:32,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-04-18 15:46:32,422 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-04-18 15:46:32,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:32,423 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-04-18 15:46:32,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 15:46:32,424 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-04-18 15:46:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:46:32,427 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:32,428 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:32,428 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:32,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:32,428 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-04-18 15:46:32,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:32,429 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1727126890] [2020-04-18 15:46:32,429 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:32,430 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:46:32,430 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-04-18 15:46:32,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:46:32,430 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:32,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:32,431 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 2 times [2020-04-18 15:46:32,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:32,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286054653] [2020-04-18 15:46:32,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:32,587 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 15:46:32,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286054653] [2020-04-18 15:46:32,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:32,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:46:32,588 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:32,589 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:32,590 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:46:32,590 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:32,599 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:46:32,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:32,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:46:32,600 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-04-18 15:46:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:32,613 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-04-18 15:46:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-04-18 15:46:32,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:32,614 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1727126890] [2020-04-18 15:46:32,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:32,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:46:32,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1727126890] [2020-04-18 15:46:32,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:46:32,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:32,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:32,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:32,616 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-04-18 15:46:32,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:32,635 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-04-18 15:46:32,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:46:32,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-18 15:46:32,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:32,639 INFO L225 Difference]: With dead ends: 330 [2020-04-18 15:46:32,639 INFO L226 Difference]: Without dead ends: 266 [2020-04-18 15:46:32,640 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:32,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-04-18 15:46:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-04-18 15:46:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-04-18 15:46:32,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-04-18 15:46:32,663 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-04-18 15:46:32,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:32,664 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-04-18 15:46:32,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:46:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-04-18 15:46:32,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:46:32,666 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:32,666 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:32,666 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:32,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:32,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-04-18 15:46:32,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:32,667 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1906153519] [2020-04-18 15:46:32,668 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:32,668 INFO L259 McrAutomatonBuilder]: Finished intersection with 14 states and 16 transitions. [2020-04-18 15:46:32,668 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-04-18 15:46:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-18 15:46:32,669 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:32,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:32,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 2 times [2020-04-18 15:46:32,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:32,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111111919] [2020-04-18 15:46:32,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:32,750 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 15:46:32,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111111919] [2020-04-18 15:46:32,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:32,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:46:32,751 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:32,752 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:32,754 INFO L259 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-04-18 15:46:32,754 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:32,762 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:46:32,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:32,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:46:32,763 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2020-04-18 15:46:32,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:32,772 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-04-18 15:46:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-04-18 15:46:32,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:32,772 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1906153519] [2020-04-18 15:46:32,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:32,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:46:32,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1906153519] [2020-04-18 15:46:32,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:46:32,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:32,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:32,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:32,774 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-04-18 15:46:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:32,791 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-04-18 15:46:32,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:46:32,794 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-18 15:46:32,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:32,796 INFO L225 Difference]: With dead ends: 290 [2020-04-18 15:46:32,796 INFO L226 Difference]: Without dead ends: 242 [2020-04-18 15:46:32,797 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-04-18 15:46:32,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-04-18 15:46:32,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-04-18 15:46:32,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-04-18 15:46:32,812 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-04-18 15:46:32,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:32,812 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-04-18 15:46:32,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:46:32,812 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-04-18 15:46:32,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:46:32,814 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:32,814 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:32,814 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:32,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:32,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times [2020-04-18 15:46:32,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:32,815 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2030792882] [2020-04-18 15:46:32,816 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:32,816 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 42 transitions. [2020-04-18 15:46:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-04-18 15:46:32,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-18 15:46:32,818 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:32,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:32,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 2 times [2020-04-18 15:46:32,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:32,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804007660] [2020-04-18 15:46:32,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:32,900 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 15:46:32,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804007660] [2020-04-18 15:46:32,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:32,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:46:32,901 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:32,904 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:32,906 INFO L259 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-04-18 15:46:32,906 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:32,959 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:46:32,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:46:32,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:46:32,960 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2020-04-18 15:46:32,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:32,980 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-04-18 15:46:32,980 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2020-04-18 15:46:32,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:32,981 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2030792882] [2020-04-18 15:46:32,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:32,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:46:32,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2030792882] [2020-04-18 15:46:32,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 15:46:32,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:32,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 15:46:32,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:46:32,982 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 6 states. [2020-04-18 15:46:33,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:33,023 INFO L93 Difference]: Finished difference Result 302 states and 815 transitions. [2020-04-18 15:46:33,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:46:33,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-04-18 15:46:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:33,025 INFO L225 Difference]: With dead ends: 302 [2020-04-18 15:46:33,025 INFO L226 Difference]: Without dead ends: 140 [2020-04-18 15:46:33,025 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:46:33,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-04-18 15:46:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-04-18 15:46:33,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-04-18 15:46:33,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 354 transitions. [2020-04-18 15:46:33,035 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 354 transitions. Word has length 11 [2020-04-18 15:46:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:33,035 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 354 transitions. [2020-04-18 15:46:33,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 15:46:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 354 transitions. [2020-04-18 15:46:33,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:46:33,036 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:33,037 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:33,037 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:33,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:33,037 INFO L82 PathProgramCache]: Analyzing trace with hash -234537171, now seen corresponding path program 1 times [2020-04-18 15:46:33,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:33,038 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [82455114] [2020-04-18 15:46:33,038 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:33,039 INFO L259 McrAutomatonBuilder]: Finished intersection with 34 states and 60 transitions. [2020-04-18 15:46:33,039 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-04-18 15:46:33,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:46:33,040 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:33,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:33,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1046934219, now seen corresponding path program 2 times [2020-04-18 15:46:33,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:33,041 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945300394] [2020-04-18 15:46:33,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:33,113 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 15:46:33,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945300394] [2020-04-18 15:46:33,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:33,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:46:33,115 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:33,116 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:33,118 INFO L259 McrAutomatonBuilder]: Finished intersection with 24 states and 35 transitions. [2020-04-18 15:46:33,118 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:33,130 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:46:33,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:33,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:46:33,131 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 4 states. [2020-04-18 15:46:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:33,139 INFO L93 Difference]: Finished difference Result 34 states and 60 transitions. [2020-04-18 15:46:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2020-04-18 15:46:33,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:33,140 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [82455114] [2020-04-18 15:46:33,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:33,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:46:33,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [82455114] [2020-04-18 15:46:33,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:46:33,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:33,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:46:33,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:33,142 INFO L87 Difference]: Start difference. First operand 140 states and 354 transitions. Second operand 4 states. [2020-04-18 15:46:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:33,153 INFO L93 Difference]: Finished difference Result 152 states and 368 transitions. [2020-04-18 15:46:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:46:33,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-18 15:46:33,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:33,155 INFO L225 Difference]: With dead ends: 152 [2020-04-18 15:46:33,155 INFO L226 Difference]: Without dead ends: 128 [2020-04-18 15:46:33,155 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:33,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-04-18 15:46:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-04-18 15:46:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-04-18 15:46:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 316 transitions. [2020-04-18 15:46:33,161 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 316 transitions. Word has length 12 [2020-04-18 15:46:33,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:33,162 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 316 transitions. [2020-04-18 15:46:33,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:46:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 316 transitions. [2020-04-18 15:46:33,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:46:33,163 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:33,163 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:33,163 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:33,164 INFO L82 PathProgramCache]: Analyzing trace with hash -762243594, now seen corresponding path program 1 times [2020-04-18 15:46:33,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:33,164 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1680376367] [2020-04-18 15:46:33,165 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:33,166 INFO L259 McrAutomatonBuilder]: Finished intersection with 62 states and 140 transitions. [2020-04-18 15:46:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-04-18 15:46:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:46:33,168 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:33,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:33,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1574640642, now seen corresponding path program 2 times [2020-04-18 15:46:33,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:33,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781145548] [2020-04-18 15:46:33,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:33,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 15:46:33,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781145548] [2020-04-18 15:46:33,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:33,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:46:33,255 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:33,256 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:33,262 INFO L259 McrAutomatonBuilder]: Finished intersection with 38 states and 70 transitions. [2020-04-18 15:46:33,262 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:33,351 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 7 times. [2020-04-18 15:46:33,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 15:46:33,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:46:33,351 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 7 states. [2020-04-18 15:46:33,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:33,408 INFO L93 Difference]: Finished difference Result 72 states and 153 transitions. [2020-04-18 15:46:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 153 transitions. [2020-04-18 15:46:33,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-18 15:46:33,412 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:46:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:33,413 INFO L82 PathProgramCache]: Analyzing trace with hash -762243594, now seen corresponding path program 3 times [2020-04-18 15:46:33,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:33,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139223006] [2020-04-18 15:46:33,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:33,487 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 15:46:33,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139223006] [2020-04-18 15:46:33,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:33,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:46:33,488 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:33,489 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:33,493 INFO L259 McrAutomatonBuilder]: Finished intersection with 26 states and 40 transitions. [2020-04-18 15:46:33,493 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:33,516 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:46:33,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:46:33,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-04-18 15:46:33,517 INFO L87 Difference]: Start difference. First operand 72 states and 153 transitions. Second operand 5 states. [2020-04-18 15:46:33,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:33,550 INFO L93 Difference]: Finished difference Result 72 states and 153 transitions. [2020-04-18 15:46:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 153 transitions. [2020-04-18 15:46:33,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:33,551 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1680376367] [2020-04-18 15:46:33,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:33,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:46:33,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1680376367] [2020-04-18 15:46:33,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 15:46:33,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:33,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 15:46:33,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-04-18 15:46:33,553 INFO L87 Difference]: Start difference. First operand 128 states and 316 transitions. Second operand 9 states. [2020-04-18 15:46:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:33,633 INFO L93 Difference]: Finished difference Result 170 states and 409 transitions. [2020-04-18 15:46:33,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-04-18 15:46:33,634 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-04-18 15:46:33,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:33,635 INFO L225 Difference]: With dead ends: 170 [2020-04-18 15:46:33,635 INFO L226 Difference]: Without dead ends: 80 [2020-04-18 15:46:33,636 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-04-18 15:46:33,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-04-18 15:46:33,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-04-18 15:46:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-04-18 15:46:33,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-04-18 15:46:33,639 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 13 [2020-04-18 15:46:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:33,640 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-04-18 15:46:33,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 15:46:33,640 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-04-18 15:46:33,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:46:33,640 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:46:33,641 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:46:33,641 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:46:33,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:33,641 INFO L82 PathProgramCache]: Analyzing trace with hash -627503362, now seen corresponding path program 1 times [2020-04-18 15:46:33,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:46:33,642 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [414041483] [2020-04-18 15:46:33,642 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:33,646 INFO L259 McrAutomatonBuilder]: Finished intersection with 90 states and 220 transitions. [2020-04-18 15:46:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-04-18 15:46:33,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-18 15:46:33,647 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:46:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:46:33,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1571173060, now seen corresponding path program 2 times [2020-04-18 15:46:33,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:46:33,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045865173] [2020-04-18 15:46:33,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:46:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:46:33,700 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 15:46:33,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045865173] [2020-04-18 15:46:33,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:46:33,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:46:33,701 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:46:33,703 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:46:33,712 INFO L259 McrAutomatonBuilder]: Finished intersection with 48 states and 93 transitions. [2020-04-18 15:46:33,712 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:46:33,725 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 15:46:33,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:46:33,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:46:33,726 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 5 states. [2020-04-18 15:46:33,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:33,751 INFO L93 Difference]: Finished difference Result 90 states and 220 transitions. [2020-04-18 15:46:33,751 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 220 transitions. [2020-04-18 15:46:33,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:33,752 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [414041483] [2020-04-18 15:46:33,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:46:33,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:46:33,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [414041483] [2020-04-18 15:46:33,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:46:33,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:46:33,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:46:33,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:46:33,754 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 5 states. [2020-04-18 15:46:33,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:46:33,784 INFO L93 Difference]: Finished difference Result 68 states and 144 transitions. [2020-04-18 15:46:33,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:46:33,786 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-04-18 15:46:33,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:46:33,786 INFO L225 Difference]: With dead ends: 68 [2020-04-18 15:46:33,786 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:46:33,787 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 15:46:33,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:46:33,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:46:33,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:46:33,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:46:33,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-04-18 15:46:33,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:46:33,788 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:46:33,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:46:33,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:46:33,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:46:33,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:46:33 BasicIcfg [2020-04-18 15:46:33,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:46:33,798 INFO L168 Benchmark]: Toolchain (without parser) took 4584.04 ms. Allocated memory was 145.8 MB in the beginning and 244.8 MB in the end (delta: 99.1 MB). Free memory was 101.0 MB in the beginning and 134.0 MB in the end (delta: -32.9 MB). Peak memory consumption was 66.2 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:33,799 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 15:46:33,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.48 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 99.1 MB in the beginning and 159.1 MB in the end (delta: -60.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:33,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.91 ms. Allocated memory is still 203.4 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:33,803 INFO L168 Benchmark]: Boogie Preprocessor took 31.53 ms. Allocated memory is still 203.4 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:33,807 INFO L168 Benchmark]: RCFGBuilder took 422.46 ms. Allocated memory is still 203.4 MB. Free memory was 155.1 MB in the beginning and 132.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:33,807 INFO L168 Benchmark]: TraceAbstraction took 3366.20 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 132.6 MB in the beginning and 134.0 MB in the end (delta: -1.4 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. [2020-04-18 15:46:33,814 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.48 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 99.1 MB in the beginning and 159.1 MB in the end (delta: -60.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 66.91 ms. Allocated memory is still 203.4 MB. Free memory was 159.1 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.53 ms. Allocated memory is still 203.4 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.46 ms. Allocated memory is still 203.4 MB. Free memory was 155.1 MB in the beginning and 132.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3366.20 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 132.6 MB in the beginning and 134.0 MB in the end (delta: -1.4 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 156 SDtfs, 184 SDslu, 260 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...