/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 20:31:18,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 20:31:18,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 20:31:18,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-10 20:31:18,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-10 20:31:18,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-10 20:31:18,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-10 20:31:18,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-10 20:31:18,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-10 20:31:18,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-10 20:31:18,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-10 20:31:18,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-10 20:31:18,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 20:31:18,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 20:31:18,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 20:31:18,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 20:31:18,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 20:31:18,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 20:31:18,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 20:31:18,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 20:31:18,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 20:31:18,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 20:31:18,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 20:31:18,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 20:31:18,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 20:31:18,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-10 20:31:18,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-10 20:31:18,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-10 20:31:18,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-10 20:31:18,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-10 20:31:18,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-10 20:31:18,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-10 20:31:18,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-10 20:31:18,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 20:31:18,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 20:31:18,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 20:31:18,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 20:31:18,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 20:31:18,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 20:31:18,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 20:31:18,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 20:31:18,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 20:31:18,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 20:31:18,247 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 20:31:18,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 20:31:18,247 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 20:31:18,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 20:31:18,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 20:31:18,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 20:31:18,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 20:31:18,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 20:31:18,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 20:31:18,249 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 20:31:18,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 20:31:18,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 20:31:18,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 20:31:18,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 20:31:18,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 20:31:18,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 20:31:18,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 20:31:18,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 20:31:18,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 20:31:18,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 20:31:18,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 20:31:18,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 20:31:18,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 20:31:18,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 20:31:18,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 20:31:18,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 20:31:18,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 20:31:18,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 20:31:18,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 20:31:18,562 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 20:31:18,562 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 20:31:18,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2021-03-10 20:31:18,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4daeb04f/3199d048da35458a8f1b9561dd3abe24/FLAG729d60e0a [2021-03-10 20:31:19,038 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 20:31:19,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/14b-subsequent-blocks.c [2021-03-10 20:31:19,039 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-10 20:31:19,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4daeb04f/3199d048da35458a8f1b9561dd3abe24/FLAG729d60e0a [2021-03-10 20:31:19,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4daeb04f/3199d048da35458a8f1b9561dd3abe24 [2021-03-10 20:31:19,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 20:31:19,437 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 20:31:19,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 20:31:19,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 20:31:19,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 20:31:19,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1374bcd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19, skipping insertion in model container [2021-03-10 20:31:19,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 20:31:19,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 20:31:19,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:31:19,611 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 20:31:19,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 20:31:19,631 INFO L208 MainTranslator]: Completed translation [2021-03-10 20:31:19,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19 WrapperNode [2021-03-10 20:31:19,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 20:31:19,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 20:31:19,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 20:31:19,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 20:31:19,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 20:31:19,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 20:31:19,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 20:31:19,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 20:31:19,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (1/1) ... [2021-03-10 20:31:19,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 20:31:19,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 20:31:19,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 20:31:19,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 20:31:19,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (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 [2021-03-10 20:31:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 20:31:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 20:31:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 20:31:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-10 20:31:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-10 20:31:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 20:31:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 20:31:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 20:31:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 20:31:19,747 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 20:31:20,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 20:31:20,010 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-10 20:31:20,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:31:20 BoogieIcfgContainer [2021-03-10 20:31:20,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 20:31:20,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 20:31:20,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 20:31:20,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 20:31:20,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 08:31:19" (1/3) ... [2021-03-10 20:31:20,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65beb432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:31:20, skipping insertion in model container [2021-03-10 20:31:20,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 08:31:19" (2/3) ... [2021-03-10 20:31:20,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65beb432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 08:31:20, skipping insertion in model container [2021-03-10 20:31:20,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 08:31:20" (3/3) ... [2021-03-10 20:31:20,018 INFO L111 eAbstractionObserver]: Analyzing ICFG 14b-subsequent-blocks.c [2021-03-10 20:31:20,034 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 20:31:20,034 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 20:31:20,037 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 20:31:20,038 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 20:31:20,054 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,055 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,055 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,055 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,055 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,055 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,055 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,055 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,056 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,056 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,056 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,056 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,058 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,058 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,058 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,058 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 20:31:20,061 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-10 20:31:20,075 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-10 20:31:20,091 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 20:31:20,091 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 20:31:20,092 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 20:31:20,092 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 20:31:20,092 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 20:31:20,092 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 20:31:20,092 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 20:31:20,092 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 20:31:20,098 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 23 transitions, 51 flow [2021-03-10 20:31:20,108 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59 states, 57 states have (on average 1.6491228070175439) internal successors, (94), 58 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 57 states have (on average 1.6491228070175439) internal successors, (94), 58 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:20,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-03-10 20:31:20,114 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:31:20,114 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:31:20,115 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:31:20,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:31:20,119 INFO L82 PathProgramCache]: Analyzing trace with hash 2136321213, now seen corresponding path program 1 times [2021-03-10 20:31:20,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:31:20,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024369856] [2021-03-10 20:31:20,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:31:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:31:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:31:20,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024369856] [2021-03-10 20:31:20,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:31:20,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 20:31:20,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57888554] [2021-03-10 20:31:20,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 20:31:20,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:31:20,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 20:31:20,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-10 20:31:20,270 INFO L87 Difference]: Start difference. First operand has 59 states, 57 states have (on average 1.6491228070175439) internal successors, (94), 58 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:20,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:31:20,307 INFO L93 Difference]: Finished difference Result 78 states and 122 transitions. [2021-03-10 20:31:20,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-10 20:31:20,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-03-10 20:31:20,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:31:20,314 INFO L225 Difference]: With dead ends: 78 [2021-03-10 20:31:20,314 INFO L226 Difference]: Without dead ends: 26 [2021-03-10 20:31:20,315 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-10 20:31:20,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-03-10 20:31:20,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-03-10 20:31:20,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:20,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-03-10 20:31:20,340 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 13 [2021-03-10 20:31:20,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:31:20,340 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-03-10 20:31:20,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:20,348 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-03-10 20:31:20,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-10 20:31:20,348 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:31:20,348 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:31:20,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 20:31:20,349 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:31:20,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:31:20,352 INFO L82 PathProgramCache]: Analyzing trace with hash 140436346, now seen corresponding path program 1 times [2021-03-10 20:31:20,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:31:20,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542479349] [2021-03-10 20:31:20,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:31:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 20:31:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 20:31:20,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542479349] [2021-03-10 20:31:20,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 20:31:20,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-10 20:31:20,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334682772] [2021-03-10 20:31:20,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 20:31:20,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 20:31:20,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 20:31:20,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:31:20,387 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:20,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 20:31:20,394 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-03-10 20:31:20,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 20:31:20,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-03-10 20:31:20,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 20:31:20,395 INFO L225 Difference]: With dead ends: 29 [2021-03-10 20:31:20,395 INFO L226 Difference]: Without dead ends: 24 [2021-03-10 20:31:20,396 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 20:31:20,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-03-10 20:31:20,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-03-10 20:31:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-03-10 20:31:20,400 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2021-03-10 20:31:20,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 20:31:20,400 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-03-10 20:31:20,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 20:31:20,400 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2021-03-10 20:31:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-03-10 20:31:20,401 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 20:31:20,401 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 20:31:20,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 20:31:20,401 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-10 20:31:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 20:31:20,402 INFO L82 PathProgramCache]: Analyzing trace with hash 140454016, now seen corresponding path program 2 times [2021-03-10 20:31:20,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 20:31:20,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215009262] [2021-03-10 20:31:20,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 20:31:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:31:20,413 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:31:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 20:31:20,421 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 20:31:20,434 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-10 20:31:20,434 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-10 20:31:20,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 20:31:20,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 08:31:20 BasicIcfg [2021-03-10 20:31:20,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 20:31:20,453 INFO L168 Benchmark]: Toolchain (without parser) took 1019.78 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 235.4 MB in the beginning and 345.7 MB in the end (delta: -110.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:20,453 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:31:20,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.94 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 234.7 MB in the beginning and 354.4 MB in the end (delta: -119.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:20,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.76 ms. Allocated memory is still 371.2 MB. Free memory was 354.4 MB in the beginning and 353.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:31:20,455 INFO L168 Benchmark]: Boogie Preprocessor took 18.95 ms. Allocated memory is still 371.2 MB. Free memory was 353.1 MB in the beginning and 352.3 MB in the end (delta: 774.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:20,455 INFO L168 Benchmark]: RCFGBuilder took 329.45 ms. Allocated memory is still 371.2 MB. Free memory was 352.3 MB in the beginning and 339.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-10 20:31:20,455 INFO L168 Benchmark]: TraceAbstraction took 438.31 ms. Allocated memory is still 371.2 MB. Free memory was 339.3 MB in the beginning and 345.7 MB in the end (delta: -6.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 20:31:20,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 193.94 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 234.7 MB in the beginning and 354.4 MB in the end (delta: -119.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.76 ms. Allocated memory is still 371.2 MB. Free memory was 354.4 MB in the beginning and 353.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.95 ms. Allocated memory is still 371.2 MB. Free memory was 353.1 MB in the beginning and 352.3 MB in the end (delta: 774.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 329.45 ms. Allocated memory is still 371.2 MB. Free memory was 352.3 MB in the beginning and 339.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 438.31 ms. Allocated memory is still 371.2 MB. Free memory was 339.3 MB in the beginning and 345.7 MB in the end (delta: -6.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 35]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = -1; VAL [x=-1] [L23] 0 pthread_t threadId; VAL [x=-1] [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, x=-1] [L27] 0 x = 1 [L28] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, x=2] [L18] 1 x = 0 VAL [arg={0:0}, arg={0:0}, x=0] [L31] 0 x = x + 1 [L32] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, x=2] [L35] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 345.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 6.9ms, AutomataDifference: 66.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 45 SDtfs, 18 SDslu, 31 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.0ms SsaConstructionTime, 32.5ms SatisfiabilityAnalysisTime, 69.6ms InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! Received shutdown request...