/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:01:46,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:01:46,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:01:46,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:01:46,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:01:46,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:01:46,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:01:46,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:01:46,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:01:46,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:01:46,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:01:46,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:01:46,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:01:46,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:01:46,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:01:46,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:01:46,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:01:46,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:01:46,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:01:46,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:01:46,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:01:46,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:01:46,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:01:46,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:01:46,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:01:46,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:01:46,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:01:46,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:01:46,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:01:46,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:01:46,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:01:46,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:01:46,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:01:46,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:01:46,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:01:46,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:01:46,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:01:46,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:01:46,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:01:46,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:01:47,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:01:47,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 20:01:47,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:01:47,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:01:47,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:01:47,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:01:47,025 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:01:47,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:01:47,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:01:47,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:01:47,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:01:47,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:01:47,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:01:47,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:01:47,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:01:47,027 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:01:47,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:01:47,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:01:47,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:01:47,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:01:47,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:01:47,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:01:47,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:01:47,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:01:47,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:01:47,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:01:47,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:01:47,029 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:01:47,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:01:47,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:01:47,030 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:01:47,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:01:47,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:01:47,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:01:47,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:01:47,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:01:47,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:01:47,311 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:01:47,311 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-04-18 20:01:47,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85ebb1af1/e2e8573c6bd84a2fa2d5ec9f28a00f0f/FLAG929f40ce6 [2020-04-18 20:01:47,933 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:01:47,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-04-18 20:01:47,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85ebb1af1/e2e8573c6bd84a2fa2d5ec9f28a00f0f/FLAG929f40ce6 [2020-04-18 20:01:48,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85ebb1af1/e2e8573c6bd84a2fa2d5ec9f28a00f0f [2020-04-18 20:01:48,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:01:48,283 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:01:48,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:01:48,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:01:48,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:01:48,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:01:48" (1/1) ... [2020-04-18 20:01:48,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c57f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:48, skipping insertion in model container [2020-04-18 20:01:48,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:01:48" (1/1) ... [2020-04-18 20:01:48,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:01:48,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:01:48,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:01:48,857 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:01:48,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:01:49,007 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:01:49,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49 WrapperNode [2020-04-18 20:01:49,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:01:49,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:01:49,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:01:49,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:01:49,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (1/1) ... [2020-04-18 20:01:49,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (1/1) ... [2020-04-18 20:01:49,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:01:49,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:01:49,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:01:49,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:01:49,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (1/1) ... [2020-04-18 20:01:49,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (1/1) ... [2020-04-18 20:01:49,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (1/1) ... [2020-04-18 20:01:49,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (1/1) ... [2020-04-18 20:01:49,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (1/1) ... [2020-04-18 20:01:49,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (1/1) ... [2020-04-18 20:01:49,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (1/1) ... [2020-04-18 20:01:49,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:01:49,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:01:49,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:01:49,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:01:49,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (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 20:01:49,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:01:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 20:01:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:01:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:01:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 20:01:49,156 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 20:01:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 20:01:49,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 20:01:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 20:01:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:01:49,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:01:49,159 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 20:01:49,515 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:01:49,516 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 20:01:49,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:01:49 BoogieIcfgContainer [2020-04-18 20:01:49,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:01:49,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:01:49,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:01:49,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:01:49,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:01:48" (1/3) ... [2020-04-18 20:01:49,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db1ba58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:01:49, skipping insertion in model container [2020-04-18 20:01:49,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:01:49" (2/3) ... [2020-04-18 20:01:49,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db1ba58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:01:49, skipping insertion in model container [2020-04-18 20:01:49,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:01:49" (3/3) ... [2020-04-18 20:01:49,533 INFO L109 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2020-04-18 20:01:49,542 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:01:49,542 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:01:49,548 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:01:49,549 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:01:49,571 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,571 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,571 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,572 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,572 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,573 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,573 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,573 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,574 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,574 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,579 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,579 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,579 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,580 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,585 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,585 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,586 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,586 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:01:49,602 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 20:01:49,621 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:01:49,622 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:01:49,622 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:01:49,622 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:01:49,622 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:01:49,623 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:01:49,623 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:01:49,623 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:01:49,634 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 55 transitions, 120 flow [2020-04-18 20:01:49,700 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1120 states. [2020-04-18 20:01:49,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2020-04-18 20:01:49,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 20:01:49,720 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:01:49,721 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:01:49,722 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:01:49,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:49,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1637473472, now seen corresponding path program 1 times [2020-04-18 20:01:49,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:01:49,736 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [928514849] [2020-04-18 20:01:49,751 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:49,761 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 30 transitions. [2020-04-18 20:01:49,763 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-04-18 20:01:49,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-04-18 20:01:49,764 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:01:49,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:49,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1637473472, now seen corresponding path program 2 times [2020-04-18 20:01:49,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:01:49,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627957554] [2020-04-18 20:01:49,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:01:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:01:50,136 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 20:01:50,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627957554] [2020-04-18 20:01:50,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:01:50,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:01:50,139 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:01:50,143 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:50,157 INFO L259 McrAutomatonBuilder]: Finished intersection with 31 states and 30 transitions. [2020-04-18 20:01:50,157 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:01:50,254 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:01:50,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:01:50,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:01:50,260 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 6 states. [2020-04-18 20:01:50,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:50,442 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2020-04-18 20:01:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-04-18 20:01:50,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:01:50,444 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [928514849] [2020-04-18 20:01:50,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:01:50,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:01:50,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [928514849] [2020-04-18 20:01:50,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:01:50,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:01:50,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:01:50,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:01:50,454 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2020-04-18 20:01:50,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:50,599 INFO L93 Difference]: Finished difference Result 1624 states and 4244 transitions. [2020-04-18 20:01:50,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 20:01:50,601 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-04-18 20:01:50,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:01:50,621 INFO L225 Difference]: With dead ends: 1624 [2020-04-18 20:01:50,621 INFO L226 Difference]: Without dead ends: 643 [2020-04-18 20:01:50,623 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:01:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-04-18 20:01:50,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2020-04-18 20:01:50,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-04-18 20:01:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 1638 transitions. [2020-04-18 20:01:50,708 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 1638 transitions. Word has length 30 [2020-04-18 20:01:50,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:01:50,708 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 1638 transitions. [2020-04-18 20:01:50,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:01:50,709 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 1638 transitions. [2020-04-18 20:01:50,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:01:50,711 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:01:50,712 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:01:50,712 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:01:50,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:50,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1239727743, now seen corresponding path program 1 times [2020-04-18 20:01:50,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:01:50,713 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [330780686] [2020-04-18 20:01:50,714 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:50,715 INFO L259 McrAutomatonBuilder]: Finished intersection with 65 states and 96 transitions. [2020-04-18 20:01:50,716 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-04-18 20:01:50,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:01:50,717 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:01:50,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:50,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1239727743, now seen corresponding path program 2 times [2020-04-18 20:01:50,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:01:50,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95153594] [2020-04-18 20:01:50,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:01:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:01:50,900 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 20:01:50,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95153594] [2020-04-18 20:01:50,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:01:50,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:01:50,901 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:01:50,904 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:50,908 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 72 transitions. [2020-04-18 20:01:50,909 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:01:50,964 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 8 times. [2020-04-18 20:01:50,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:01:50,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:01:50,965 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 6 states. [2020-04-18 20:01:51,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:51,017 INFO L93 Difference]: Finished difference Result 65 states and 96 transitions. [2020-04-18 20:01:51,017 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2020-04-18 20:01:51,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:01:51,018 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [330780686] [2020-04-18 20:01:51,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:01:51,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:01:51,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [330780686] [2020-04-18 20:01:51,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:01:51,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:01:51,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:01:51,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 20:01:51,021 INFO L87 Difference]: Start difference. First operand 643 states and 1638 transitions. Second operand 6 states. [2020-04-18 20:01:51,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:51,117 INFO L93 Difference]: Finished difference Result 699 states and 1717 transitions. [2020-04-18 20:01:51,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 20:01:51,117 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-04-18 20:01:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:01:51,123 INFO L225 Difference]: With dead ends: 699 [2020-04-18 20:01:51,123 INFO L226 Difference]: Without dead ends: 503 [2020-04-18 20:01:51,125 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 20:01:51,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-04-18 20:01:51,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2020-04-18 20:01:51,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-04-18 20:01:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 1218 transitions. [2020-04-18 20:01:51,159 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 1218 transitions. Word has length 32 [2020-04-18 20:01:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:01:51,159 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 1218 transitions. [2020-04-18 20:01:51,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:01:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 1218 transitions. [2020-04-18 20:01:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-18 20:01:51,164 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:01:51,164 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:01:51,165 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:01:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:51,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1209517218, now seen corresponding path program 1 times [2020-04-18 20:01:51,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:01:51,166 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2005239255] [2020-04-18 20:01:51,167 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:51,168 INFO L259 McrAutomatonBuilder]: Finished intersection with 99 states and 162 transitions. [2020-04-18 20:01:51,172 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2020-04-18 20:01:51,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-18 20:01:51,173 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:01:51,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:51,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1452786306, now seen corresponding path program 2 times [2020-04-18 20:01:51,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:01:51,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114399076] [2020-04-18 20:01:51,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:01:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:01:51,378 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 20:01:51,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114399076] [2020-04-18 20:01:51,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:01:51,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:01:51,379 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:01:51,383 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:51,389 INFO L259 McrAutomatonBuilder]: Finished intersection with 55 states and 74 transitions. [2020-04-18 20:01:51,389 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:01:51,479 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 20:01:51,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:01:51,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:01:51,479 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 8 states. [2020-04-18 20:01:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:51,623 INFO L93 Difference]: Finished difference Result 99 states and 162 transitions. [2020-04-18 20:01:51,624 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 162 transitions. [2020-04-18 20:01:51,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:01:51,624 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2005239255] [2020-04-18 20:01:51,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:01:51,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:01:51,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2005239255] [2020-04-18 20:01:51,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 20:01:51,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:01:51,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:01:51,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2020-04-18 20:01:51,626 INFO L87 Difference]: Start difference. First operand 503 states and 1218 transitions. Second operand 8 states. [2020-04-18 20:01:51,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:51,724 INFO L93 Difference]: Finished difference Result 371 states and 845 transitions. [2020-04-18 20:01:51,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 20:01:51,724 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-04-18 20:01:51,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:01:51,726 INFO L225 Difference]: With dead ends: 371 [2020-04-18 20:01:51,727 INFO L226 Difference]: Without dead ends: 239 [2020-04-18 20:01:51,727 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-04-18 20:01:51,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-04-18 20:01:51,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-04-18 20:01:51,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-04-18 20:01:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 514 transitions. [2020-04-18 20:01:51,734 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 514 transitions. Word has length 34 [2020-04-18 20:01:51,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:01:51,734 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 514 transitions. [2020-04-18 20:01:51,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 20:01:51,734 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 514 transitions. [2020-04-18 20:01:51,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:01:51,735 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:01:51,735 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:01:51,736 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:01:51,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:51,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1941500640, now seen corresponding path program 1 times [2020-04-18 20:01:51,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:01:51,737 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [575911191] [2020-04-18 20:01:51,738 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:51,745 INFO L259 McrAutomatonBuilder]: Finished intersection with 359 states and 870 transitions. [2020-04-18 20:01:51,748 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2020-04-18 20:01:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:01:51,750 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:01:51,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:51,750 INFO L82 PathProgramCache]: Analyzing trace with hash 608633024, now seen corresponding path program 2 times [2020-04-18 20:01:51,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:01:51,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420636826] [2020-04-18 20:01:51,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:01:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:01:51,872 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 20:01:51,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420636826] [2020-04-18 20:01:51,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:01:51,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:01:51,874 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:01:51,881 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:51,889 INFO L259 McrAutomatonBuilder]: Finished intersection with 75 states and 116 transitions. [2020-04-18 20:01:51,889 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:01:51,919 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 20:01:51,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:01:51,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:01:51,920 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 6 states. [2020-04-18 20:01:52,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:52,036 INFO L93 Difference]: Finished difference Result 521 states and 1213 transitions. [2020-04-18 20:01:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 1213 transitions. [2020-04-18 20:01:52,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:01:52,038 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 20:01:52,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:52,038 INFO L82 PathProgramCache]: Analyzing trace with hash 176899874, now seen corresponding path program 3 times [2020-04-18 20:01:52,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:01:52,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509680954] [2020-04-18 20:01:52,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:01:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:01:52,153 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 20:01:52,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509680954] [2020-04-18 20:01:52,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:01:52,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:01:52,155 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:01:52,158 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:52,177 INFO L259 McrAutomatonBuilder]: Finished intersection with 103 states and 171 transitions. [2020-04-18 20:01:52,178 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:01:52,295 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times. [2020-04-18 20:01:52,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 20:01:52,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-04-18 20:01:52,296 INFO L87 Difference]: Start difference. First operand 521 states and 1213 transitions. Second operand 8 states. [2020-04-18 20:01:52,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:52,582 INFO L93 Difference]: Finished difference Result 541 states and 1231 transitions. [2020-04-18 20:01:52,583 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 1231 transitions. [2020-04-18 20:01:52,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:01:52,584 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 20:01:52,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:01:52,585 INFO L82 PathProgramCache]: Analyzing trace with hash -2047202172, now seen corresponding path program 4 times [2020-04-18 20:01:52,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:01:52,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129512326] [2020-04-18 20:01:52,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:01:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:01:52,702 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 20:01:52,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129512326] [2020-04-18 20:01:52,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:01:52,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 20:01:52,703 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:01:52,706 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:01:52,712 INFO L259 McrAutomatonBuilder]: Finished intersection with 71 states and 104 transitions. [2020-04-18 20:01:52,713 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:01:52,750 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 3 times. [2020-04-18 20:01:52,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 20:01:52,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2020-04-18 20:01:52,751 INFO L87 Difference]: Start difference. First operand 541 states and 1231 transitions. Second operand 7 states. [2020-04-18 20:01:52,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:52,869 INFO L93 Difference]: Finished difference Result 737 states and 1607 transitions. [2020-04-18 20:01:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1607 transitions. [2020-04-18 20:01:52,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:01:52,872 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [575911191] [2020-04-18 20:01:52,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:01:52,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 20:01:52,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [575911191] [2020-04-18 20:01:52,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-04-18 20:01:52,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:01:52,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-04-18 20:01:52,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=723, Unknown=0, NotChecked=0, Total=870 [2020-04-18 20:01:52,874 INFO L87 Difference]: Start difference. First operand 239 states and 514 transitions. Second operand 14 states. [2020-04-18 20:01:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:01:53,399 INFO L93 Difference]: Finished difference Result 463 states and 1014 transitions. [2020-04-18 20:01:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-04-18 20:01:53,400 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2020-04-18 20:01:53,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:01:53,400 INFO L225 Difference]: With dead ends: 463 [2020-04-18 20:01:53,400 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 20:01:53,402 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=346, Invalid=1724, Unknown=0, NotChecked=0, Total=2070 [2020-04-18 20:01:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 20:01:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 20:01:53,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 20:01:53,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 20:01:53,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-04-18 20:01:53,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:01:53,403 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 20:01:53,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-04-18 20:01:53,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 20:01:53,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:01:53,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:01:53 BasicIcfg [2020-04-18 20:01:53,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:01:53,411 INFO L168 Benchmark]: Toolchain (without parser) took 5146.74 ms. Allocated memory was 146.3 MB in the beginning and 284.7 MB in the end (delta: 138.4 MB). Free memory was 101.6 MB in the beginning and 223.8 MB in the end (delta: -122.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:01:53,412 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-04-18 20:01:53,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.20 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.7 MB in the beginning and 159.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-04-18 20:01:53,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.34 ms. Allocated memory is still 203.4 MB. Free memory was 159.5 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:01:53,414 INFO L168 Benchmark]: Boogie Preprocessor took 25.12 ms. Allocated memory is still 203.4 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:01:53,415 INFO L168 Benchmark]: RCFGBuilder took 437.27 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 136.1 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:01:53,416 INFO L168 Benchmark]: TraceAbstraction took 3882.87 ms. Allocated memory was 203.4 MB in the beginning and 284.7 MB in the end (delta: 81.3 MB). Free memory was 136.1 MB in the beginning and 223.8 MB in the end (delta: -87.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 20:01:53,420 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 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.20 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.7 MB in the beginning and 159.5 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.34 ms. Allocated memory is still 203.4 MB. Free memory was 159.5 MB in the beginning and 157.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.12 ms. Allocated memory is still 203.4 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.27 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 136.1 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3882.87 ms. Allocated memory was 203.4 MB in the beginning and 284.7 MB in the end (delta: 81.3 MB). Free memory was 136.1 MB in the beginning and 223.8 MB in the end (delta: -87.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 281 SDtfs, 516 SDslu, 1211 SDs, 0 SdLazy, 269 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1120occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...