/usr/bin/java -Xmx8000000000 -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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 00:01:03,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 00:01:03,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 00:01:03,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 00:01:03,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 00:01:03,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 00:01:03,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 00:01:03,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 00:01:03,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 00:01:03,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 00:01:03,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 00:01:03,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 00:01:03,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 00:01:03,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 00:01:03,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 00:01:03,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 00:01:03,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-14 00:01:03,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 00:01:03,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 00:01:03,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 00:01:03,790 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-Delay.epf [2021-07-14 00:01:03,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 00:01:03,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 00:01:03,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 00:01:03,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 00:01:03,807 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 00:01:03,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 00:01:03,807 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 00:01:03,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 00:01:03,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 00:01:03,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 00:01:03,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 00:01:03,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 00:01:03,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 00:01:03,808 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 00:01:03,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 00:01:03,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 00:01:03,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 00:01:03,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 00:01:03,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 00:01:03,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 00:01:03,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 00:01:03,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 00:01:03,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 00:01:03,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 00:01:03,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 00:01:03,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 00:01:03,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 00:01:03,810 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 00:01:03,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 00:01:03,810 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-14 00:01:03,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 00:01:04,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 00:01:04,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 00:01:04,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 00:01:04,061 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-14 00:01:04,063 INFO L275 PluginConnector]: CDTParser initialized [2021-07-14 00:01:04,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-07-14 00:01:04,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c847fe5a1/524222c7808c43afa0def7f2d67584b4/FLAG43b06ae97 [2021-07-14 00:01:04,490 INFO L306 CDTParser]: Found 1 translation units. [2021-07-14 00:01:04,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-07-14 00:01:04,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c847fe5a1/524222c7808c43afa0def7f2d67584b4/FLAG43b06ae97 [2021-07-14 00:01:04,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c847fe5a1/524222c7808c43afa0def7f2d67584b4 [2021-07-14 00:01:04,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 00:01:04,867 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-14 00:01:04,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-14 00:01:04,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-14 00:01:04,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-14 00:01:04,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:01:04" (1/1) ... [2021-07-14 00:01:04,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22dc5e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:04, skipping insertion in model container [2021-07-14 00:01:04,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:01:04" (1/1) ... [2021-07-14 00:01:04,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-14 00:01:04,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-14 00:01:05,153 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-14 00:01:05,388 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2021-07-14 00:01:05,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:01:05,417 INFO L203 MainTranslator]: Completed pre-run [2021-07-14 00:01:05,433 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-07-14 00:01:05,460 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i[31161,31174] [2021-07-14 00:01:05,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-14 00:01:05,517 INFO L208 MainTranslator]: Completed translation [2021-07-14 00:01:05,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05 WrapperNode [2021-07-14 00:01:05,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-14 00:01:05,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 00:01:05,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 00:01:05,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 00:01:05,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (1/1) ... [2021-07-14 00:01:05,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (1/1) ... [2021-07-14 00:01:05,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 00:01:05,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 00:01:05,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 00:01:05,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 00:01:05,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (1/1) ... [2021-07-14 00:01:05,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (1/1) ... [2021-07-14 00:01:05,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (1/1) ... [2021-07-14 00:01:05,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (1/1) ... [2021-07-14 00:01:05,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (1/1) ... [2021-07-14 00:01:05,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (1/1) ... [2021-07-14 00:01:05,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (1/1) ... [2021-07-14 00:01:05,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 00:01:05,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 00:01:05,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 00:01:05,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 00:01:05,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (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 [2021-07-14 00:01:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-14 00:01:05,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-14 00:01:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-14 00:01:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-14 00:01:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-14 00:01:05,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-14 00:01:05,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-14 00:01:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-14 00:01:05,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 00:01:05,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 00:01:05,646 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 00:01:05,909 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 00:01:05,909 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-14 00:01:05,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:01:05 BoogieIcfgContainer [2021-07-14 00:01:05,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 00:01:05,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 00:01:05,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 00:01:05,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 00:01:05,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:01:04" (1/3) ... [2021-07-14 00:01:05,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70019187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:01:05, skipping insertion in model container [2021-07-14 00:01:05,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:01:05" (2/3) ... [2021-07-14 00:01:05,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70019187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:01:05, skipping insertion in model container [2021-07-14 00:01:05,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:01:05" (3/3) ... [2021-07-14 00:01:05,916 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-07-14 00:01:05,919 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 00:01:05,919 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 00:01:05,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 00:01:05,920 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 00:01:05,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,934 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,934 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,935 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,935 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,936 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,936 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,936 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,937 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,937 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-14 00:01:05,939 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-14 00:01:05,952 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-14 00:01:05,963 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 00:01:05,964 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 00:01:05,964 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 00:01:05,964 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 00:01:05,964 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 00:01:05,964 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 00:01:05,964 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 00:01:05,964 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 00:01:06,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 102 states have (on average 1.2549019607843137) internal successors, (128), 115 states have internal predecessors, (128), 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) [2021-07-14 00:01:06,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-14 00:01:06,018 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:01:06,019 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:01:06,019 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:01:06,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:01:06,022 INFO L82 PathProgramCache]: Analyzing trace with hash 180770886, now seen corresponding path program 1 times [2021-07-14 00:01:06,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:01:06,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769211433] [2021-07-14 00:01:06,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:01:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:01:06,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:01:06,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:01:06,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:01:06,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:01:06,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:01:06,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:01:06,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:01:06,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:01:06,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769211433] [2021-07-14 00:01:06,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769211433] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:01:06,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:01:06,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-14 00:01:06,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126122098] [2021-07-14 00:01:06,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-14 00:01:06,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:01:06,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-14 00:01:06,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-14 00:01:06,233 INFO L87 Difference]: Start difference. First operand has 116 states, 102 states have (on average 1.2549019607843137) internal successors, (128), 115 states have internal predecessors, (128), 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 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-07-14 00:01:06,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:01:06,290 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2021-07-14 00:01:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 00:01:06,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2021-07-14 00:01:06,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:01:06,296 INFO L225 Difference]: With dead ends: 130 [2021-07-14 00:01:06,296 INFO L226 Difference]: Without dead ends: 49 [2021-07-14 00:01:06,297 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-14 00:01:06,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-07-14 00:01:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-07-14 00:01:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 48 states have internal predecessors, (55), 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) [2021-07-14 00:01:06,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2021-07-14 00:01:06,322 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 31 [2021-07-14 00:01:06,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:01:06,323 INFO L482 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2021-07-14 00:01:06,324 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2021-07-14 00:01:06,324 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2021-07-14 00:01:06,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-07-14 00:01:06,325 INFO L500 BasicCegarLoop]: Found error trace [2021-07-14 00:01:06,325 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-14 00:01:06,325 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 00:01:06,326 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-14 00:01:06,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 00:01:06,329 INFO L82 PathProgramCache]: Analyzing trace with hash -992919419, now seen corresponding path program 1 times [2021-07-14 00:01:06,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 00:01:06,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572401740] [2021-07-14 00:01:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 00:01:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 00:01:06,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:01:06,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:01:06,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-14 00:01:06,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 00:01:06,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-14 00:01:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 00:01:06,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 00:01:06,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572401740] [2021-07-14 00:01:06,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572401740] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 00:01:06,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 00:01:06,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 00:01:06,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321362859] [2021-07-14 00:01:06,387 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 00:01:06,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 00:01:06,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 00:01:06,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 00:01:06,388 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-07-14 00:01:06,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-14 00:01:06,392 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2021-07-14 00:01:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 00:01:06,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-07-14 00:01:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-14 00:01:06,393 INFO L225 Difference]: With dead ends: 32 [2021-07-14 00:01:06,393 INFO L226 Difference]: Without dead ends: 0 [2021-07-14 00:01:06,393 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 00:01:06,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-14 00:01:06,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-14 00:01:06,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-07-14 00:01:06,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-14 00:01:06,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2021-07-14 00:01:06,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-14 00:01:06,394 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-14 00:01:06,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-07-14 00:01:06,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-14 00:01:06,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-14 00:01:06,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 00:01:06,396 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-14 00:01:06,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 12:01:06 BasicIcfg [2021-07-14 00:01:06,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-14 00:01:06,398 INFO L168 Benchmark]: Toolchain (without parser) took 1531.08 ms. Allocated memory is still 177.2 MB. Free memory was 139.9 MB in the beginning and 68.9 MB in the end (delta: 70.9 MB). Peak memory consumption was 70.3 MB. Max. memory is 8.0 GB. [2021-07-14 00:01:06,399 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 177.2 MB. Free memory is still 158.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 00:01:06,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.42 ms. Allocated memory is still 177.2 MB. Free memory was 139.6 MB in the beginning and 151.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. [2021-07-14 00:01:06,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.73 ms. Allocated memory is still 177.2 MB. Free memory was 151.8 MB in the beginning and 149.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:01:06,400 INFO L168 Benchmark]: Boogie Preprocessor took 24.70 ms. Allocated memory is still 177.2 MB. Free memory was 149.7 MB in the beginning and 148.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 00:01:06,400 INFO L168 Benchmark]: RCFGBuilder took 324.71 ms. Allocated memory is still 177.2 MB. Free memory was 148.1 MB in the beginning and 118.7 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2021-07-14 00:01:06,400 INFO L168 Benchmark]: TraceAbstraction took 485.42 ms. Allocated memory is still 177.2 MB. Free memory was 118.2 MB in the beginning and 68.9 MB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 8.0 GB. [2021-07-14 00:01:06,402 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 177.2 MB. Free memory is still 158.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 629.42 ms. Allocated memory is still 177.2 MB. Free memory was 139.6 MB in the beginning and 151.8 MB in the end (delta: -12.1 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 41.73 ms. Allocated memory is still 177.2 MB. Free memory was 151.8 MB in the beginning and 149.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 24.70 ms. Allocated memory is still 177.2 MB. Free memory was 149.7 MB in the beginning and 148.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 324.71 ms. Allocated memory is still 177.2 MB. Free memory was 148.1 MB in the beginning and 118.7 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 485.42 ms. Allocated memory is still 177.2 MB. Free memory was 118.2 MB in the beginning and 68.9 MB in the end (delta: 49.3 MB). Peak memory consumption was 49.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 78, positive: 75, positive conditional: 75, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 78, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 78, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 78, unknown conditional: 0, unknown unconditional: 78] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Independence queries for same thread: 0 - PositiveResult [Line: 738]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 59 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 433.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.1ms, AutomataDifference: 78.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 48.3ms, PartialOrderReductionTime: 39.6ms, HoareTripleCheckerStatistics: 86 SDtfs, 31 SDslu, 199 SDs, 0 SdLazy, 43 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.1ms SsaConstructionTime, 55.6ms SatisfiabilityAnalysisTime, 130.0ms InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...