/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/safe036_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 15:44:41,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 15:44:41,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 15:44:41,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 15:44:41,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 15:44:41,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 15:44:41,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 15:44:41,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 15:44:41,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 15:44:41,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 15:44:41,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 15:44:41,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 15:44:41,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 15:44:41,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 15:44:41,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 15:44:42,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 15:44:42,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 15:44:42,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 15:44:42,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 15:44:42,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 15:44:42,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 15:44:42,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 15:44:42,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 15:44:42,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 15:44:42,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 15:44:42,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 15:44:42,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 15:44:42,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 15:44:42,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 15:44:42,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 15:44:42,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 15:44:42,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 15:44:42,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 15:44:42,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 15:44:42,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 15:44:42,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 15:44:42,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 15:44:42,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 15:44:42,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 15:44:42,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 15:44:42,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 15:44:42,032 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 15:44:42,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 15:44:42,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 15:44:42,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 15:44:42,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 15:44:42,074 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 15:44:42,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 15:44:42,075 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 15:44:42,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 15:44:42,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 15:44:42,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 15:44:42,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 15:44:42,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 15:44:42,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 15:44:42,076 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 15:44:42,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 15:44:42,076 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 15:44:42,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 15:44:42,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 15:44:42,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 15:44:42,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 15:44:42,077 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 15:44:42,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 15:44:42,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 15:44:42,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 15:44:42,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 15:44:42,082 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 15:44:42,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 15:44:42,082 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 15:44:42,082 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 15:44:42,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 15:44:42,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 15:44:42,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 15:44:42,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 15:44:42,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 15:44:42,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 15:44:42,397 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 15:44:42,398 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i [2020-04-18 15:44:42,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef680504/75dd651eb4aa47229e9160343cb21e77/FLAG392fb039b [2020-04-18 15:44:43,063 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 15:44:43,063 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i [2020-04-18 15:44:43,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef680504/75dd651eb4aa47229e9160343cb21e77/FLAG392fb039b [2020-04-18 15:44:43,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef680504/75dd651eb4aa47229e9160343cb21e77 [2020-04-18 15:44:43,344 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 15:44:43,367 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 15:44:43,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 15:44:43,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 15:44:43,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 15:44:43,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:44:43" (1/1) ... [2020-04-18 15:44:43,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce5a151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:43, skipping insertion in model container [2020-04-18 15:44:43,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:44:43" (1/1) ... [2020-04-18 15:44:43,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 15:44:43,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 15:44:43,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:44:43,879 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 15:44:43,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 15:44:44,018 INFO L208 MainTranslator]: Completed translation [2020-04-18 15:44:44,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44 WrapperNode [2020-04-18 15:44:44,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 15:44:44,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 15:44:44,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 15:44:44,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 15:44:44,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (1/1) ... [2020-04-18 15:44:44,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (1/1) ... [2020-04-18 15:44:44,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 15:44:44,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 15:44:44,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 15:44:44,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 15:44:44,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (1/1) ... [2020-04-18 15:44:44,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (1/1) ... [2020-04-18 15:44:44,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (1/1) ... [2020-04-18 15:44:44,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (1/1) ... [2020-04-18 15:44:44,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (1/1) ... [2020-04-18 15:44:44,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (1/1) ... [2020-04-18 15:44:44,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (1/1) ... [2020-04-18 15:44:44,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 15:44:44,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 15:44:44,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 15:44:44,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 15:44:44,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (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 15:44:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 15:44:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 15:44:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 15:44:44,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 15:44:44,190 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 15:44:44,190 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 15:44:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 15:44:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 15:44:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 15:44:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 15:44:44,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 15:44:44,196 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 15:44:44,573 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 15:44:44,574 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 15:44:44,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:44:44 BoogieIcfgContainer [2020-04-18 15:44:44,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 15:44:44,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 15:44:44,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 15:44:44,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 15:44:44,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:44:43" (1/3) ... [2020-04-18 15:44:44,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b084a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:44:44, skipping insertion in model container [2020-04-18 15:44:44,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:44:44" (2/3) ... [2020-04-18 15:44:44,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b084a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:44:44, skipping insertion in model container [2020-04-18 15:44:44,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:44:44" (3/3) ... [2020-04-18 15:44:44,587 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_power.oepc.i [2020-04-18 15:44:44,598 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 15:44:44,598 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 15:44:44,606 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 15:44:44,607 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 15:44:44,630 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,630 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,630 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,631 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,631 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,631 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,632 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,632 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,633 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,633 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,633 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,634 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,638 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,638 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,638 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,639 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,645 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,646 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,646 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,646 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 15:44:44,661 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 15:44:44,678 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 15:44:44,678 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 15:44:44,679 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 15:44:44,679 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 15:44:44,679 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 15:44:44,679 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 15:44:44,679 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 15:44:44,679 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 15:44:44,694 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-04-18 15:44:44,696 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 15:44:44,734 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 15:44:44,734 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:44:44,739 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 15:44:44,741 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-04-18 15:44:44,760 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-04-18 15:44:44,760 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-18 15:44:44,761 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-04-18 15:44:44,762 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-04-18 15:44:44,764 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 15:44:46,067 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-04-18 15:44:46,389 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1294 [2020-04-18 15:44:46,390 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-04-18 15:44:46,394 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-04-18 15:44:46,405 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-04-18 15:44:46,407 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-04-18 15:44:46,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:44:46,414 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:44:46,415 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-04-18 15:44:46,416 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:44:46,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:46,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 1 times [2020-04-18 15:44:46,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:44:46,429 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1550238911] [2020-04-18 15:44:46,441 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:46,451 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:44:46,452 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-04-18 15:44:46,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-04-18 15:44:46,453 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:44:46,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:46,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 2 times [2020-04-18 15:44:46,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:44:46,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588050600] [2020-04-18 15:44:46,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:44:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:44:46,666 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 15:44:46,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588050600] [2020-04-18 15:44:46,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:44:46,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 15:44:46,670 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:44:46,671 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:46,672 INFO L259 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-04-18 15:44:46,672 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:44:46,686 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:44:46,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:44:46,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:44:46,693 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2020-04-18 15:44:46,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:46,714 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-04-18 15:44:46,714 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-04-18 15:44:46,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:44:46,715 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1550238911] [2020-04-18 15:44:46,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:44:46,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 15:44:46,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1550238911] [2020-04-18 15:44:46,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 15:44:46,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:44:46,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:44:46,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-18 15:44:46,724 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-04-18 15:44:46,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:46,767 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-04-18 15:44:46,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-18 15:44:46,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-04-18 15:44:46,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:44:46,778 INFO L225 Difference]: With dead ends: 63 [2020-04-18 15:44:46,778 INFO L226 Difference]: Without dead ends: 40 [2020-04-18 15:44:46,780 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 15:44:46,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-04-18 15:44:46,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-04-18 15:44:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-04-18 15:44:46,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-04-18 15:44:46,827 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 6 [2020-04-18 15:44:46,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:44:46,832 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-04-18 15:44:46,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 15:44:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-04-18 15:44:46,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:44:46,840 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:44:46,840 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:44:46,841 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:44:46,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:46,842 INFO L82 PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 1 times [2020-04-18 15:44:46,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:44:46,843 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [613858376] [2020-04-18 15:44:46,843 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:46,845 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 21 transitions. [2020-04-18 15:44:46,845 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-04-18 15:44:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:44:46,846 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:44:46,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:46,849 INFO L82 PathProgramCache]: Analyzing trace with hash -771554460, now seen corresponding path program 2 times [2020-04-18 15:44:46,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:44:46,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388357478] [2020-04-18 15:44:46,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:44:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:44:46,951 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 15:44:46,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388357478] [2020-04-18 15:44:46,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:44:46,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:44:46,953 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:44:46,953 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:46,956 INFO L259 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-04-18 15:44:46,957 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:44:46,975 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:44:46,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:44:46,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:44:46,976 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-04-18 15:44:46,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:46,996 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-04-18 15:44:46,996 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-04-18 15:44:46,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-18 15:44:46,997 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:44:46,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:46,997 INFO L82 PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 3 times [2020-04-18 15:44:46,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:44:46,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454170627] [2020-04-18 15:44:46,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:44:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:44:47,079 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 15:44:47,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454170627] [2020-04-18 15:44:47,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:44:47,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:44:47,081 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:44:47,081 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:47,083 INFO L259 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-04-18 15:44:47,084 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:44:47,090 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:44:47,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:44:47,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:44:47,091 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 5 states. [2020-04-18 15:44:47,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:47,114 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-04-18 15:44:47,114 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-04-18 15:44:47,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:44:47,115 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [613858376] [2020-04-18 15:44:47,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:44:47,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:44:47,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [613858376] [2020-04-18 15:44:47,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 15:44:47,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:44:47,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:44:47,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:44:47,118 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-04-18 15:44:47,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:47,153 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-04-18 15:44:47,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 15:44:47,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-04-18 15:44:47,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:44:47,155 INFO L225 Difference]: With dead ends: 35 [2020-04-18 15:44:47,155 INFO L226 Difference]: Without dead ends: 28 [2020-04-18 15:44:47,156 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-04-18 15:44:47,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-04-18 15:44:47,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-04-18 15:44:47,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-04-18 15:44:47,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-04-18 15:44:47,161 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-04-18 15:44:47,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:44:47,161 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-04-18 15:44:47,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 15:44:47,161 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-04-18 15:44:47,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:44:47,162 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 15:44:47,162 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 15:44:47,162 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 15:44:47,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:47,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 1 times [2020-04-18 15:44:47,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 15:44:47,163 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1244651728] [2020-04-18 15:44:47,164 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:47,166 INFO L259 McrAutomatonBuilder]: Finished intersection with 58 states and 120 transitions. [2020-04-18 15:44:47,167 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2020-04-18 15:44:47,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:44:47,168 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 15:44:47,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:47,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1286203238, now seen corresponding path program 2 times [2020-04-18 15:44:47,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:44:47,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303135968] [2020-04-18 15:44:47,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:44:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:44:47,241 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 15:44:47,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303135968] [2020-04-18 15:44:47,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:44:47,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:44:47,243 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:44:47,244 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:47,246 INFO L259 McrAutomatonBuilder]: Finished intersection with 21 states and 29 transitions. [2020-04-18 15:44:47,247 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:44:47,258 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:44:47,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:44:47,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 15:44:47,259 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 4 states. [2020-04-18 15:44:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:47,301 INFO L93 Difference]: Finished difference Result 72 states and 139 transitions. [2020-04-18 15:44:47,301 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 139 transitions. [2020-04-18 15:44:47,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:44:47,304 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 15:44:47,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:47,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1081539068, now seen corresponding path program 3 times [2020-04-18 15:44:47,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:44:47,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134670660] [2020-04-18 15:44:47,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:44:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:44:47,375 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 15:44:47,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134670660] [2020-04-18 15:44:47,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:44:47,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 15:44:47,377 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:44:47,378 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:47,379 INFO L259 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-04-18 15:44:47,379 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:44:47,387 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 15:44:47,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:44:47,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-04-18 15:44:47,387 INFO L87 Difference]: Start difference. First operand 72 states and 139 transitions. Second operand 5 states. [2020-04-18 15:44:47,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:47,435 INFO L93 Difference]: Finished difference Result 74 states and 140 transitions. [2020-04-18 15:44:47,435 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 140 transitions. [2020-04-18 15:44:47,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:44:47,436 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 15:44:47,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:47,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 4 times [2020-04-18 15:44:47,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:44:47,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263589918] [2020-04-18 15:44:47,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:44:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:44:47,498 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 15:44:47,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263589918] [2020-04-18 15:44:47,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:44:47,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:44:47,499 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:44:47,500 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:47,502 INFO L259 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-04-18 15:44:47,502 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:44:47,524 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 1 times. [2020-04-18 15:44:47,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 15:44:47,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 15:44:47,525 INFO L87 Difference]: Start difference. First operand 74 states and 140 transitions. Second operand 4 states. [2020-04-18 15:44:47,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:47,543 INFO L93 Difference]: Finished difference Result 110 states and 192 transitions. [2020-04-18 15:44:47,543 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 192 transitions. [2020-04-18 15:44:47,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-18 15:44:47,544 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 15:44:47,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 15:44:47,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1252547174, now seen corresponding path program 5 times [2020-04-18 15:44:47,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 15:44:47,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784986104] [2020-04-18 15:44:47,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 15:44:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 15:44:47,575 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 15:44:47,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784986104] [2020-04-18 15:44:47,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 15:44:47,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 15:44:47,576 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 15:44:47,577 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 15:44:47,579 INFO L259 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-04-18 15:44:47,579 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 15:44:47,643 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 15:44:47,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 15:44:47,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-04-18 15:44:47,644 INFO L87 Difference]: Start difference. First operand 110 states and 192 transitions. Second operand 5 states. [2020-04-18 15:44:47,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:47,666 INFO L93 Difference]: Finished difference Result 162 states and 258 transitions. [2020-04-18 15:44:47,666 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 258 transitions. [2020-04-18 15:44:47,667 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:44:47,668 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1244651728] [2020-04-18 15:44:47,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 15:44:47,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 15:44:47,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1244651728] [2020-04-18 15:44:47,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 15:44:47,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 15:44:47,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 15:44:47,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-04-18 15:44:47,670 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 10 states. [2020-04-18 15:44:47,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 15:44:47,970 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2020-04-18 15:44:47,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-04-18 15:44:47,971 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-04-18 15:44:47,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 15:44:47,971 INFO L225 Difference]: With dead ends: 41 [2020-04-18 15:44:47,971 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 15:44:47,972 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=206, Invalid=606, Unknown=0, NotChecked=0, Total=812 [2020-04-18 15:44:47,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 15:44:47,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 15:44:47,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 15:44:47,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 15:44:47,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-04-18 15:44:47,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 15:44:47,973 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 15:44:47,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-18 15:44:47,974 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 15:44:47,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 15:44:47,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:44:47 BasicIcfg [2020-04-18 15:44:47,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 15:44:47,980 INFO L168 Benchmark]: Toolchain (without parser) took 4634.39 ms. Allocated memory was 147.3 MB in the beginning and 243.8 MB in the end (delta: 96.5 MB). Free memory was 103.1 MB in the beginning and 180.8 MB in the end (delta: -77.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-04-18 15:44:47,980 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 147.3 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 15:44:47,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.06 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 160.1 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-04-18 15:44:47,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.96 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 15:44:47,983 INFO L168 Benchmark]: Boogie Preprocessor took 31.76 ms. Allocated memory is still 204.5 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 15:44:47,983 INFO L168 Benchmark]: RCFGBuilder took 473.27 ms. Allocated memory is still 204.5 MB. Free memory was 156.3 MB in the beginning and 137.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2020-04-18 15:44:47,984 INFO L168 Benchmark]: TraceAbstraction took 3397.92 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 136.2 MB in the beginning and 180.8 MB in the end (delta: -44.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 15:44:47,988 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 147.3 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.06 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 101.4 MB in the beginning and 160.1 MB in the end (delta: -58.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.96 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 158.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.76 ms. Allocated memory is still 204.5 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 473.27 ms. Allocated memory is still 204.5 MB. Free memory was 156.3 MB in the beginning and 137.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3397.92 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 136.2 MB in the beginning and 180.8 MB in the end (delta: -44.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 360 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1294 CheckedPairsTotal, 49 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 41 SDtfs, 62 SDslu, 91 SDs, 0 SdLazy, 106 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 3 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...