/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/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 10:33:46,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 10:33:46,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 10:33:46,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 10:33:46,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 10:33:46,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 10:33:46,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 10:33:46,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 10:33:46,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 10:33:46,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 10:33:46,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 10:33:46,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 10:33:46,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 10:33:46,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 10:33:46,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 10:33:46,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 10:33:46,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 10:33:46,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 10:33:46,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 10:33:46,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 10:33:46,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 10:33:46,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 10:33:46,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 10:33:46,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 10:33:46,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 10:33:46,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 10:33:46,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 10:33:46,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 10:33:46,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 10:33:46,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 10:33:46,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 10:33:46,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 10:33:46,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 10:33:46,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 10:33:46,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 10:33:46,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 10:33:46,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 10:33:46,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 10:33:46,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 10:33:46,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 10:33:46,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 10:33:46,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 10:33:46,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 10:33:46,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 10:33:46,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 10:33:46,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 10:33:46,664 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 10:33:46,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 10:33:46,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 10:33:46,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 10:33:46,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 10:33:46,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 10:33:46,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 10:33:46,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 10:33:46,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 10:33:46,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 10:33:46,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 10:33:46,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 10:33:46,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 10:33:46,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 10:33:46,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 10:33:46,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 10:33:46,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 10:33:46,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 10:33:46,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 10:33:46,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 10:33:46,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 10:33:46,670 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 10:33:47,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 10:33:47,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 10:33:47,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 10:33:47,145 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 10:33:47,150 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 10:33:47,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/peterson.i [2020-12-22 10:33:47,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/305318768/07fbe1d57ba044629a6a39cad2c21f12/FLAGe772bcd7f [2020-12-22 10:33:48,010 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 10:33:48,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i [2020-12-22 10:33:48,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/305318768/07fbe1d57ba044629a6a39cad2c21f12/FLAGe772bcd7f [2020-12-22 10:33:48,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/305318768/07fbe1d57ba044629a6a39cad2c21f12 [2020-12-22 10:33:48,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 10:33:48,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 10:33:48,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 10:33:48,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 10:33:48,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 10:33:48,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19913341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48, skipping insertion in model container [2020-12-22 10:33:48,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 10:33:48,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 10:33:48,522 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-22 10:33:48,668 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2020-12-22 10:33:48,675 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2020-12-22 10:33:48,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 10:33:48,691 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 10:33:48,710 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-22 10:33:48,762 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2020-12-22 10:33:48,770 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2020-12-22 10:33:48,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 10:33:48,896 INFO L208 MainTranslator]: Completed translation [2020-12-22 10:33:48,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48 WrapperNode [2020-12-22 10:33:48,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 10:33:48,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 10:33:48,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 10:33:48,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 10:33:48,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 10:33:48,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 10:33:48,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 10:33:48,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 10:33:48,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (1/1) ... [2020-12-22 10:33:48,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 10:33:48,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 10:33:48,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 10:33:48,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 10:33:48,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (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 [2020-12-22 10:33:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 10:33:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-12-22 10:33:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-12-22 10:33:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-12-22 10:33:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-12-22 10:33:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 10:33:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 10:33:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 10:33:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 10:33:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 10:33:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 10:33:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 10:33:49,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 10:33:49,122 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 10:33:49,675 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 10:33:49,675 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-22 10:33:49,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:33:49 BoogieIcfgContainer [2020-12-22 10:33:49,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 10:33:49,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 10:33:49,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 10:33:49,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 10:33:49,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:33:48" (1/3) ... [2020-12-22 10:33:49,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea8d9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:33:49, skipping insertion in model container [2020-12-22 10:33:49,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:33:48" (2/3) ... [2020-12-22 10:33:49,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea8d9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:33:49, skipping insertion in model container [2020-12-22 10:33:49,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:33:49" (3/3) ... [2020-12-22 10:33:49,706 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson.i [2020-12-22 10:33:49,715 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 10:33:49,715 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 10:33:49,720 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-22 10:33:49,722 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 10:33:49,769 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,769 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,770 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,770 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,770 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,770 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,770 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,771 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,771 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,772 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,772 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,772 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,776 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,776 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,776 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,777 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,777 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,777 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,778 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,778 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,779 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,779 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,779 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,780 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,780 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,780 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,781 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,781 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,781 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,781 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,783 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,783 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,783 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,783 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,785 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,785 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,786 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,786 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,789 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,789 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,796 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,797 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,797 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,797 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,797 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,798 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:33:49,809 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-12-22 10:33:49,834 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-22 10:33:49,859 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 10:33:49,860 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 10:33:49,860 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 10:33:49,860 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 10:33:49,860 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 10:33:49,860 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 10:33:49,861 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 10:33:49,861 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 10:33:49,878 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 10:33:49,880 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 74 transitions, 170 flow [2020-12-22 10:33:49,884 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 74 transitions, 170 flow [2020-12-22 10:33:49,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 74 transitions, 170 flow [2020-12-22 10:33:49,939 INFO L129 PetriNetUnfolder]: 7/74 cut-off events. [2020-12-22 10:33:49,940 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-12-22 10:33:49,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 74 events. 7/74 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 47. Up to 3 conditions per place. [2020-12-22 10:33:49,959 INFO L116 LiptonReduction]: Number of co-enabled transitions 1116 [2020-12-22 10:33:52,052 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-22 10:33:52,572 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-12-22 10:33:52,698 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 10:33:52,982 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-12-22 10:33:53,094 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-22 10:33:53,104 INFO L131 LiptonReduction]: Checked pairs total: 3982 [2020-12-22 10:33:53,104 INFO L133 LiptonReduction]: Total number of compositions: 47 [2020-12-22 10:33:53,110 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 36 transitions, 94 flow [2020-12-22 10:33:53,135 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 285 states. [2020-12-22 10:33:53,137 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-12-22 10:33:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 10:33:53,145 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:33:53,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:33:53,147 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 10:33:53,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:33:53,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1938310971, now seen corresponding path program 1 times [2020-12-22 10:33:53,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:33:53,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077914426] [2020-12-22 10:33:53,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:33:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:33:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:33:53,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077914426] [2020-12-22 10:33:53,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:33:53,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 10:33:53,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624981969] [2020-12-22 10:33:53,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 10:33:53,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:33:53,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 10:33:53,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 10:33:53,406 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-12-22 10:33:53,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:33:53,464 INFO L93 Difference]: Finished difference Result 319 states and 694 transitions. [2020-12-22 10:33:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 10:33:53,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 10:33:53,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:33:53,486 INFO L225 Difference]: With dead ends: 319 [2020-12-22 10:33:53,486 INFO L226 Difference]: Without dead ends: 224 [2020-12-22 10:33:53,488 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 [2020-12-22 10:33:53,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-12-22 10:33:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 210. [2020-12-22 10:33:53,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-12-22 10:33:53,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 481 transitions. [2020-12-22 10:33:53,612 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 481 transitions. Word has length 8 [2020-12-22 10:33:53,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:33:53,614 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 481 transitions. [2020-12-22 10:33:53,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 10:33:53,615 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 481 transitions. [2020-12-22 10:33:53,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 10:33:53,617 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:33:53,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:33:53,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 10:33:53,618 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 10:33:53,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:33:53,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1207543750, now seen corresponding path program 1 times [2020-12-22 10:33:53,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:33:53,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531469222] [2020-12-22 10:33:53,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:33:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:33:53,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:33:53,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531469222] [2020-12-22 10:33:53,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:33:53,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 10:33:53,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155984750] [2020-12-22 10:33:53,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 10:33:53,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:33:53,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 10:33:53,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 10:33:53,725 INFO L87 Difference]: Start difference. First operand 210 states and 481 transitions. Second operand 3 states. [2020-12-22 10:33:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:33:53,748 INFO L93 Difference]: Finished difference Result 201 states and 446 transitions. [2020-12-22 10:33:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 10:33:53,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 10:33:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:33:53,751 INFO L225 Difference]: With dead ends: 201 [2020-12-22 10:33:53,752 INFO L226 Difference]: Without dead ends: 148 [2020-12-22 10:33:53,753 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 [2020-12-22 10:33:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-12-22 10:33:53,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-12-22 10:33:53,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-12-22 10:33:53,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 328 transitions. [2020-12-22 10:33:53,764 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 328 transitions. Word has length 10 [2020-12-22 10:33:53,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:33:53,765 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 328 transitions. [2020-12-22 10:33:53,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 10:33:53,765 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 328 transitions. [2020-12-22 10:33:53,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 10:33:53,767 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:33:53,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:33:53,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 10:33:53,768 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 10:33:53,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:33:53,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1030642209, now seen corresponding path program 1 times [2020-12-22 10:33:53,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:33:53,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615313467] [2020-12-22 10:33:53,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:33:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:33:53,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:33:53,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615313467] [2020-12-22 10:33:53,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:33:53,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 10:33:53,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236668329] [2020-12-22 10:33:53,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:33:53,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:33:53,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:33:53,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:33:53,889 INFO L87 Difference]: Start difference. First operand 148 states and 328 transitions. Second operand 6 states. [2020-12-22 10:33:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:33:54,028 INFO L93 Difference]: Finished difference Result 218 states and 503 transitions. [2020-12-22 10:33:54,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:33:54,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 10:33:54,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:33:54,031 INFO L225 Difference]: With dead ends: 218 [2020-12-22 10:33:54,031 INFO L226 Difference]: Without dead ends: 158 [2020-12-22 10:33:54,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:33:54,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-22 10:33:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-12-22 10:33:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-12-22 10:33:54,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 319 transitions. [2020-12-22 10:33:54,043 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 319 transitions. Word has length 15 [2020-12-22 10:33:54,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:33:54,043 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 319 transitions. [2020-12-22 10:33:54,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:33:54,044 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 319 transitions. [2020-12-22 10:33:54,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-22 10:33:54,045 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:33:54,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:33:54,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 10:33:54,046 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 10:33:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:33:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1089270781, now seen corresponding path program 2 times [2020-12-22 10:33:54,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:33:54,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634162212] [2020-12-22 10:33:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:33:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:33:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:33:54,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634162212] [2020-12-22 10:33:54,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:33:54,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 10:33:54,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035101598] [2020-12-22 10:33:54,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:33:54,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:33:54,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:33:54,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:33:54,131 INFO L87 Difference]: Start difference. First operand 146 states and 319 transitions. Second operand 6 states. [2020-12-22 10:33:54,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:33:54,216 INFO L93 Difference]: Finished difference Result 100 states and 236 transitions. [2020-12-22 10:33:54,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 10:33:54,225 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-22 10:33:54,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:33:54,226 INFO L225 Difference]: With dead ends: 100 [2020-12-22 10:33:54,226 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 10:33:54,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:33:54,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 10:33:54,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 10:33:54,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 10:33:54,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 10:33:54,228 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-22 10:33:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:33:54,228 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 10:33:54,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:33:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 10:33:54,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 10:33:54,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 10:33:54,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 10:33:54 BasicIcfg [2020-12-22 10:33:54,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 10:33:54,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 10:33:54,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 10:33:54,236 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 10:33:54,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:33:49" (3/4) ... [2020-12-22 10:33:54,243 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 10:33:54,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2020-12-22 10:33:54,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2020-12-22 10:33:54,259 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-22 10:33:54,259 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 10:33:54,260 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 10:33:54,260 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 10:33:54,306 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-atomic/peterson.i-witness.graphml [2020-12-22 10:33:54,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 10:33:54,307 INFO L168 Benchmark]: Toolchain (without parser) took 6051.15 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.1 MB in the beginning and 155.8 MB in the end (delta: -30.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 10:33:54,308 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 10:33:54,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.68 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 127.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. [2020-12-22 10:33:54,309 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 125.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 10:33:54,310 INFO L168 Benchmark]: Boogie Preprocessor took 37.06 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 124.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 10:33:54,311 INFO L168 Benchmark]: RCFGBuilder took 688.76 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 102.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 10:33:54,312 INFO L168 Benchmark]: TraceAbstraction took 4548.84 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.0 MB in the beginning and 158.4 MB in the end (delta: -56.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 10:33:54,312 INFO L168 Benchmark]: Witness Printer took 70.72 ms. Allocated memory is still 181.4 MB. Free memory was 158.4 MB in the beginning and 155.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 10:33:54,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 633.68 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 127.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 125.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.06 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 124.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 688.76 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 102.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4548.84 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 102.0 MB in the beginning and 158.4 MB in the end (delta: -56.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 70.72 ms. Allocated memory is still 181.4 MB. Free memory was 158.4 MB in the beginning and 155.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 789 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 258 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 73 PlacesBefore, 38 PlacesAfterwards, 74 TransitionsBefore, 36 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 47 TotalNumberOfCompositions, 3982 MoverChecksTotal - PositiveResult [Line: 753]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 725]: 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, 67 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 154 SDtfs, 121 SDslu, 181 SDs, 0 SdLazy, 112 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred 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, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...