/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:06:23,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:06:23,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:06:23,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:06:23,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:06:23,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:06:23,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:06:23,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:06:23,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:06:23,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:06:23,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:06:23,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:06:23,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:06:23,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:06:23,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:06:23,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:06:23,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:06:23,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:06:23,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:06:23,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:06:23,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:06:23,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:06:23,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:06:23,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:06:23,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 13:06:23,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 13:06:23,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 13:06:23,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 13:06:23,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 13:06:23,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 13:06:23,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:06:23,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:06:23,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:06:23,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:06:23,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:06:23,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:06:23,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:06:23,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:06:23,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:06:23,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:06:23,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:06:23,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:06:23,292 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:06:23,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:06:23,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:06:23,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:06:23,295 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:06:23,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:06:23,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:06:23,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:06:23,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:06:23,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:06:23,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:06:23,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:06:23,297 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:06:23,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:06:23,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:06:23,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:06:23,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:06:23,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:06:23,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:06:23,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:06:23,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:06:23,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:06:23,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:06:23,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:06:23,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:06:23,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:06:23,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:06:23,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:06:23,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:06:23,721 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:06:23,722 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:06:23,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/szymanski.i [2020-12-23 13:06:23,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f7a10ac32/7e9ca855097d4856b31e36d348b05a3a/FLAG2643424b8 [2020-12-23 13:06:24,570 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:06:24,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i [2020-12-23 13:06:24,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f7a10ac32/7e9ca855097d4856b31e36d348b05a3a/FLAG2643424b8 [2020-12-23 13:06:24,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f7a10ac32/7e9ca855097d4856b31e36d348b05a3a [2020-12-23 13:06:24,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:06:24,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:06:24,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:06:24,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:06:24,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:06:24,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:06:24" (1/1) ... [2020-12-23 13:06:24,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c137e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:24, skipping insertion in model container [2020-12-23 13:06:24,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:06:24" (1/1) ... [2020-12-23 13:06:24,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:06:24,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:06:25,101 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] [2020-12-23 13:06:25,333 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] [2020-12-23 13:06:25,343 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] [2020-12-23 13:06:25,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:06:25,360 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:06:25,378 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] [2020-12-23 13:06:25,405 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~f21~0,] left hand side expression in assignment: lhs: VariableLHS[~flag1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] [2020-12-23 13:06:25,411 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~f12~0,] left hand side expression in assignment: lhs: VariableLHS[~flag2~0,GLOBAL] [2020-12-23 13:06:25,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:06:25,522 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:06:25,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25 WrapperNode [2020-12-23 13:06:25,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:06:25,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:06:25,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:06:25,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:06:25,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... [2020-12-23 13:06:25,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... [2020-12-23 13:06:25,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:06:25,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:06:25,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:06:25,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:06:25,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... [2020-12-23 13:06:25,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... [2020-12-23 13:06:25,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... [2020-12-23 13:06:25,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... [2020-12-23 13:06:25,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... [2020-12-23 13:06:25,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... [2020-12-23 13:06:25,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... [2020-12-23 13:06:25,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:06:25,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:06:25,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:06:25,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:06:25,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 13:06:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 13:06:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-12-23 13:06:25,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-12-23 13:06:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-12-23 13:06:25,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-12-23 13:06:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:06:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-23 13:06:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:06:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:06:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:06:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-23 13:06:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:06:25,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:06:25,748 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:06:26,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:06:26,221 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-23 13:06:26,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:06:26 BoogieIcfgContainer [2020-12-23 13:06:26,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:06:26,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:06:26,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:06:26,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:06:26,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:06:24" (1/3) ... [2020-12-23 13:06:26,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378b2422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:06:26, skipping insertion in model container [2020-12-23 13:06:26,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:06:25" (2/3) ... [2020-12-23 13:06:26,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378b2422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:06:26, skipping insertion in model container [2020-12-23 13:06:26,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:06:26" (3/3) ... [2020-12-23 13:06:26,234 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2020-12-23 13:06:26,241 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:06:26,241 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:06:26,246 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-23 13:06:26,247 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:06:26,281 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,282 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,282 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,282 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,283 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,283 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,283 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,283 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,284 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,284 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,284 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,285 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,285 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,285 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,285 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,286 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,286 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,286 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,287 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,287 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,287 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,287 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,288 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,288 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,288 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,288 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,289 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,289 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,289 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,289 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,290 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,290 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,290 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,291 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,291 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,291 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,291 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,292 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,292 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,294 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,294 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,294 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,295 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,295 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,295 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,295 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,306 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,306 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,306 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,313 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,313 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,320 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,320 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,320 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,321 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,321 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:06:26,328 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-12-23 13:06:26,352 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-23 13:06:26,379 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:06:26,380 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:06:26,380 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:06:26,380 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:06:26,380 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:06:26,380 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:06:26,380 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:06:26,381 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:06:26,398 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:06:26,400 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 109 transitions, 240 flow [2020-12-23 13:06:26,404 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 109 transitions, 240 flow [2020-12-23 13:06:26,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 109 transitions, 240 flow [2020-12-23 13:06:26,466 INFO L129 PetriNetUnfolder]: 21/109 cut-off events. [2020-12-23 13:06:26,467 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-12-23 13:06:26,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 109 events. 21/109 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 158 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2020-12-23 13:06:26,479 INFO L116 LiptonReduction]: Number of co-enabled transitions 3528 [2020-12-23 13:06:29,033 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-23 13:06:29,357 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-23 13:06:29,459 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-23 13:06:29,480 INFO L131 LiptonReduction]: Checked pairs total: 9414 [2020-12-23 13:06:29,481 INFO L133 LiptonReduction]: Total number of compositions: 72 [2020-12-23 13:06:29,488 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 53 transitions, 128 flow [2020-12-23 13:06:29,530 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 575 states. [2020-12-23 13:06:29,532 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states. [2020-12-23 13:06:29,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 13:06:29,542 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:06:29,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:06:29,543 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:06:29,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:06:29,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1395682617, now seen corresponding path program 1 times [2020-12-23 13:06:29,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:06:29,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073075220] [2020-12-23 13:06:29,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:06:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:06:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:06:29,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073075220] [2020-12-23 13:06:29,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:06:29,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:06:29,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968561310] [2020-12-23 13:06:29,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:06:29,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:06:29,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:06:29,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:06:29,814 INFO L87 Difference]: Start difference. First operand 575 states. Second operand 3 states. [2020-12-23 13:06:29,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:06:29,891 INFO L93 Difference]: Finished difference Result 623 states and 1713 transitions. [2020-12-23 13:06:29,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:06:29,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-23 13:06:29,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:06:29,918 INFO L225 Difference]: With dead ends: 623 [2020-12-23 13:06:29,918 INFO L226 Difference]: Without dead ends: 446 [2020-12-23 13:06:29,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:06:29,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-12-23 13:06:30,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 428. [2020-12-23 13:06:30,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2020-12-23 13:06:30,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 1214 transitions. [2020-12-23 13:06:30,020 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 1214 transitions. Word has length 10 [2020-12-23 13:06:30,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:06:30,021 INFO L481 AbstractCegarLoop]: Abstraction has 428 states and 1214 transitions. [2020-12-23 13:06:30,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:06:30,021 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 1214 transitions. [2020-12-23 13:06:30,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-23 13:06:30,024 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:06:30,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:06:30,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:06:30,025 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:06:30,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:06:30,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1830914178, now seen corresponding path program 1 times [2020-12-23 13:06:30,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:06:30,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270943128] [2020-12-23 13:06:30,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:06:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:06:30,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:06:30,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270943128] [2020-12-23 13:06:30,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:06:30,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:06:30,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101190511] [2020-12-23 13:06:30,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:06:30,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:06:30,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:06:30,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:06:30,096 INFO L87 Difference]: Start difference. First operand 428 states and 1214 transitions. Second operand 3 states. [2020-12-23 13:06:30,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:06:30,119 INFO L93 Difference]: Finished difference Result 413 states and 1158 transitions. [2020-12-23 13:06:30,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:06:30,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-23 13:06:30,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:06:30,123 INFO L225 Difference]: With dead ends: 413 [2020-12-23 13:06:30,124 INFO L226 Difference]: Without dead ends: 308 [2020-12-23 13:06:30,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:06:30,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-12-23 13:06:30,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2020-12-23 13:06:30,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-12-23 13:06:30,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 866 transitions. [2020-12-23 13:06:30,150 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 866 transitions. Word has length 12 [2020-12-23 13:06:30,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:06:30,151 INFO L481 AbstractCegarLoop]: Abstraction has 308 states and 866 transitions. [2020-12-23 13:06:30,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:06:30,151 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 866 transitions. [2020-12-23 13:06:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:06:30,155 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:06:30,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:06:30,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:06:30,156 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:06:30,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:06:30,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1877941582, now seen corresponding path program 1 times [2020-12-23 13:06:30,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:06:30,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126677732] [2020-12-23 13:06:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:06:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:06:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:06:30,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126677732] [2020-12-23 13:06:30,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:06:30,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:06:30,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244343827] [2020-12-23 13:06:30,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:06:30,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:06:30,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:06:30,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:06:30,254 INFO L87 Difference]: Start difference. First operand 308 states and 866 transitions. Second operand 3 states. [2020-12-23 13:06:30,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:06:30,297 INFO L93 Difference]: Finished difference Result 308 states and 862 transitions. [2020-12-23 13:06:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:06:30,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-23 13:06:30,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:06:30,301 INFO L225 Difference]: With dead ends: 308 [2020-12-23 13:06:30,302 INFO L226 Difference]: Without dead ends: 308 [2020-12-23 13:06:30,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:06:30,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-12-23 13:06:30,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2020-12-23 13:06:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-12-23 13:06:30,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 862 transitions. [2020-12-23 13:06:30,320 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 862 transitions. Word has length 19 [2020-12-23 13:06:30,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:06:30,321 INFO L481 AbstractCegarLoop]: Abstraction has 308 states and 862 transitions. [2020-12-23 13:06:30,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:06:30,321 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 862 transitions. [2020-12-23 13:06:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:06:30,325 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:06:30,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:06:30,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:06:30,325 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:06:30,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:06:30,326 INFO L82 PathProgramCache]: Analyzing trace with hash -604449698, now seen corresponding path program 1 times [2020-12-23 13:06:30,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:06:30,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937173272] [2020-12-23 13:06:30,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:06:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:06:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:06:30,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937173272] [2020-12-23 13:06:30,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:06:30,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:06:30,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573244359] [2020-12-23 13:06:30,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:06:30,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:06:30,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:06:30,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:06:30,385 INFO L87 Difference]: Start difference. First operand 308 states and 862 transitions. Second operand 4 states. [2020-12-23 13:06:30,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:06:30,503 INFO L93 Difference]: Finished difference Result 392 states and 1094 transitions. [2020-12-23 13:06:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 13:06:30,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-12-23 13:06:30,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:06:30,506 INFO L225 Difference]: With dead ends: 392 [2020-12-23 13:06:30,506 INFO L226 Difference]: Without dead ends: 274 [2020-12-23 13:06:30,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:06:30,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-12-23 13:06:30,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 244. [2020-12-23 13:06:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-12-23 13:06:30,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 634 transitions. [2020-12-23 13:06:30,533 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 634 transitions. Word has length 19 [2020-12-23 13:06:30,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:06:30,533 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 634 transitions. [2020-12-23 13:06:30,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:06:30,534 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 634 transitions. [2020-12-23 13:06:30,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:06:30,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:06:30,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:06:30,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:06:30,538 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:06:30,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:06:30,538 INFO L82 PathProgramCache]: Analyzing trace with hash -394659122, now seen corresponding path program 2 times [2020-12-23 13:06:30,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:06:30,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774109027] [2020-12-23 13:06:30,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:06:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:06:30,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:06:30,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774109027] [2020-12-23 13:06:30,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:06:30,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:06:30,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179459368] [2020-12-23 13:06:30,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:06:30,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:06:30,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:06:30,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:06:30,585 INFO L87 Difference]: Start difference. First operand 244 states and 634 transitions. Second operand 3 states. [2020-12-23 13:06:30,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:06:30,623 INFO L93 Difference]: Finished difference Result 274 states and 713 transitions. [2020-12-23 13:06:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:06:30,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-23 13:06:30,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:06:30,628 INFO L225 Difference]: With dead ends: 274 [2020-12-23 13:06:30,628 INFO L226 Difference]: Without dead ends: 274 [2020-12-23 13:06:30,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:06:30,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-12-23 13:06:30,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 244. [2020-12-23 13:06:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-12-23 13:06:30,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 630 transitions. [2020-12-23 13:06:30,641 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 630 transitions. Word has length 19 [2020-12-23 13:06:30,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:06:30,642 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 630 transitions. [2020-12-23 13:06:30,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:06:30,643 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 630 transitions. [2020-12-23 13:06:30,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:06:30,645 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:06:30,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:06:30,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:06:30,646 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:06:30,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:06:30,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1200101758, now seen corresponding path program 3 times [2020-12-23 13:06:30,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:06:30,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259862887] [2020-12-23 13:06:30,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:06:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:06:30,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:06:30,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259862887] [2020-12-23 13:06:30,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:06:30,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 13:06:30,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287545876] [2020-12-23 13:06:30,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:06:30,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:06:30,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:06:30,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:06:30,736 INFO L87 Difference]: Start difference. First operand 244 states and 630 transitions. Second operand 4 states. [2020-12-23 13:06:30,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:06:30,812 INFO L93 Difference]: Finished difference Result 214 states and 581 transitions. [2020-12-23 13:06:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:06:30,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-12-23 13:06:30,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:06:30,814 INFO L225 Difference]: With dead ends: 214 [2020-12-23 13:06:30,814 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 13:06:30,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:06:30,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 13:06:30,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 13:06:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 13:06:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 13:06:30,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-12-23 13:06:30,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:06:30,827 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 13:06:30,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:06:30,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 13:06:30,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 13:06:30,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 13:06:30,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:06:30 BasicIcfg [2020-12-23 13:06:30,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 13:06:30,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 13:06:30,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 13:06:30,839 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 13:06:30,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:06:26" (3/4) ... [2020-12-23 13:06:30,843 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 13:06:30,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2020-12-23 13:06:30,851 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2020-12-23 13:06:30,856 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-23 13:06:30,856 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 13:06:30,857 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:06:30,857 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 13:06:30,926 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-atomic/szymanski.i-witness.graphml [2020-12-23 13:06:30,926 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 13:06:30,928 INFO L168 Benchmark]: Toolchain (without parser) took 6101.51 ms. Allocated memory was 169.9 MB in the beginning and 246.4 MB in the end (delta: 76.5 MB). Free memory was 144.5 MB in the beginning and 218.3 MB in the end (delta: -73.8 MB). Peak memory consumption was 3.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:06:30,933 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 169.9 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:06:30,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.20 ms. Allocated memory is still 169.9 MB. Free memory was 144.3 MB in the beginning and 149.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. [2020-12-23 13:06:30,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.14 ms. Allocated memory is still 169.9 MB. Free memory was 149.2 MB in the beginning and 147.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 13:06:30,938 INFO L168 Benchmark]: Boogie Preprocessor took 36.02 ms. Allocated memory is still 169.9 MB. Free memory was 147.6 MB in the beginning and 146.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:06:30,940 INFO L168 Benchmark]: RCFGBuilder took 601.79 ms. Allocated memory is still 169.9 MB. Free memory was 146.0 MB in the beginning and 120.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-12-23 13:06:30,941 INFO L168 Benchmark]: TraceAbstraction took 4611.52 ms. Allocated memory was 169.9 MB in the beginning and 246.4 MB in the end (delta: 76.5 MB). Free memory was 120.4 MB in the beginning and 220.4 MB in the end (delta: -100.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 13:06:30,941 INFO L168 Benchmark]: Witness Printer took 87.71 ms. Allocated memory is still 246.4 MB. Free memory was 220.4 MB in the beginning and 218.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 13:06:30,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 169.9 MB. Free memory is still 142.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 692.20 ms. Allocated memory is still 169.9 MB. Free memory was 144.3 MB in the beginning and 149.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 61.14 ms. Allocated memory is still 169.9 MB. Free memory was 149.2 MB in the beginning and 147.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.02 ms. Allocated memory is still 169.9 MB. Free memory was 147.6 MB in the beginning and 146.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 601.79 ms. Allocated memory is still 169.9 MB. Free memory was 146.0 MB in the beginning and 120.9 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4611.52 ms. Allocated memory was 169.9 MB in the beginning and 246.4 MB in the end (delta: 76.5 MB). Free memory was 120.4 MB in the beginning and 220.4 MB in the end (delta: -100.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 87.71 ms. Allocated memory is still 246.4 MB. Free memory was 220.4 MB in the beginning and 218.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2114 VarBasedMoverChecksPositive, 58 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 51 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 361 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.0s, 94 PlacesBefore, 48 PlacesAfterwards, 109 TransitionsBefore, 53 TransitionsAfterwards, 3528 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 10 ChoiceCompositions, 72 TotalNumberOfCompositions, 9414 MoverChecksTotal - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 745]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 88 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 346 SDtfs, 170 SDslu, 213 SDs, 0 SdLazy, 136 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=575occurred 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, 6 MinimizatonAttempts, 78 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 2222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...