/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-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 18:56:39,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 18:56:39,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 18:56:39,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 18:56:39,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 18:56:39,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 18:56:39,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 18:56:39,524 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-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-06-13 18:56:39,560 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 18:56:39,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 18:56:39,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 18:56:39,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 18:56:39,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 18:56:39,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 18:56:39,563 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 18:56:39,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 18:56:39,564 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 18:56:39,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 18:56:39,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 18:56:39,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 18:56:39,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 18:56:39,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 18:56:39,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 18:56:39,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 18:56:39,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 18:56:39,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 18:56:39,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 18:56:39,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 18:56:39,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 18:56:39,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 18:56:39,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 18:56:39,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 18:56:39,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 18:56:39,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 18:56:39,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 18:56:39,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 18:56:39,578 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 18:56:39,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 18:56:39,578 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 18:56:39,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 18:56:39,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 18:56:39,579 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 18:56:39,579 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 18:56:39,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 18:56:39,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 18:56:39,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 18:56:39,912 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 18:56:39,912 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 18:56:39,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-06-13 18:56:39,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/713851a5f/92fa4f6b4d674557a3ef1c9ee458b839/FLAGbbb5591d9 [2021-06-13 18:56:40,429 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 18:56:40,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-06-13 18:56:40,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/713851a5f/92fa4f6b4d674557a3ef1c9ee458b839/FLAGbbb5591d9 [2021-06-13 18:56:40,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/713851a5f/92fa4f6b4d674557a3ef1c9ee458b839 [2021-06-13 18:56:40,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 18:56:40,768 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 18:56:40,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 18:56:40,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 18:56:40,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 18:56:40,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 06:56:40" (1/1) ... [2021-06-13 18:56:40,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e13b9c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:40, skipping insertion in model container [2021-06-13 18:56:40,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 06:56:40" (1/1) ... [2021-06-13 18:56:40,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 18:56:40,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 18:56:40,969 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-13 18:56:41,122 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] [2021-06-13 18:56:41,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 18:56:41,137 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 18:56:41,154 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-13 18:56:41,169 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] [2021-06-13 18:56:41,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 18:56:41,221 INFO L208 MainTranslator]: Completed translation [2021-06-13 18:56:41,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41 WrapperNode [2021-06-13 18:56:41,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 18:56:41,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 18:56:41,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 18:56:41,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 18:56:41,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (1/1) ... [2021-06-13 18:56:41,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (1/1) ... [2021-06-13 18:56:41,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 18:56:41,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 18:56:41,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 18:56:41,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 18:56:41,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (1/1) ... [2021-06-13 18:56:41,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (1/1) ... [2021-06-13 18:56:41,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (1/1) ... [2021-06-13 18:56:41,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (1/1) ... [2021-06-13 18:56:41,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (1/1) ... [2021-06-13 18:56:41,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (1/1) ... [2021-06-13 18:56:41,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (1/1) ... [2021-06-13 18:56:41,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 18:56:41,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 18:56:41,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 18:56:41,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 18:56:41,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (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 [2021-06-13 18:56:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-06-13 18:56:41,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-06-13 18:56:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 18:56:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-13 18:56:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 18:56:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 18:56:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 18:56:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-13 18:56:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 18:56:41,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 18:56:41,361 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 18:56:41,892 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 18:56:41,892 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-06-13 18:56:41,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 06:56:41 BoogieIcfgContainer [2021-06-13 18:56:41,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 18:56:41,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 18:56:41,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 18:56:41,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 18:56:41,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 06:56:40" (1/3) ... [2021-06-13 18:56:41,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b4e7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 06:56:41, skipping insertion in model container [2021-06-13 18:56:41,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 06:56:41" (2/3) ... [2021-06-13 18:56:41,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b4e7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 06:56:41, skipping insertion in model container [2021-06-13 18:56:41,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 06:56:41" (3/3) ... [2021-06-13 18:56:41,902 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-06-13 18:56:41,906 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 18:56:41,906 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 18:56:41,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 18:56:41,907 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 18:56:41,952 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,952 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,952 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,953 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,953 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,954 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,954 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,955 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,956 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,956 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,957 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,957 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,957 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 18:56:41,959 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-13 18:56:41,975 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-13 18:56:42,027 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 18:56:42,027 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 18:56:42,027 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 18:56:42,027 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 18:56:42,027 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 18:56:42,027 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 18:56:42,027 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 18:56:42,028 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 18:56:42,058 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 18:56:42,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 18:56:42,061 INFO L82 PathProgramCache]: Analyzing trace with hash -710524805, now seen corresponding path program 1 times [2021-06-13 18:56:42,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 18:56:42,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675596029] [2021-06-13 18:56:42,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 18:56:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 18:56:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 18:56:42,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 18:56:42,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675596029] [2021-06-13 18:56:42,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675596029] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 18:56:42,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 18:56:42,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 18:56:42,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200504513] [2021-06-13 18:56:42,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 18:56:42,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 18:56:42,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 18:56:42,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 18:56:42,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 18:56:42,364 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 18:56:42,366 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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) [2021-06-13 18:56:42,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 18:56:42,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 18:56:42,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 18:56:42,541 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 18:56:42,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 18:56:42,544 INFO L82 PathProgramCache]: Analyzing trace with hash 28408481, now seen corresponding path program 2 times [2021-06-13 18:56:42,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 18:56:42,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491018395] [2021-06-13 18:56:42,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 18:56:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 18:56:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 18:56:42,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 18:56:42,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491018395] [2021-06-13 18:56:42,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491018395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 18:56:42,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 18:56:42,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-13 18:56:42,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107018271] [2021-06-13 18:56:42,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 18:56:42,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 18:56:42,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 18:56:42,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 18:56:42,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 18:56:42,626 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 18:56:42,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2021-06-13 18:56:42,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 18:56:42,626 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 18:56:42,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 18:56:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 18:56:42,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 18:56:42,663 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 18:56:42,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 18:56:42,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1985649545, now seen corresponding path program 3 times [2021-06-13 18:56:42,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 18:56:42,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024384595] [2021-06-13 18:56:42,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 18:56:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 18:56:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 18:56:42,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 18:56:42,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024384595] [2021-06-13 18:56:42,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024384595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 18:56:42,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 18:56:42,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-13 18:56:42,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689337704] [2021-06-13 18:56:42,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 18:56:42,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 18:56:42,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 18:56:42,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-13 18:56:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 18:56:42,743 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 18:56:42,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2021-06-13 18:56:42,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-13 18:56:42,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 18:56:42,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 18:56:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 18:56:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 18:56:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 18:56:42,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 18:56:42,804 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 18:56:42,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 06:56:42 BasicIcfg [2021-06-13 18:56:42,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 18:56:42,807 INFO L168 Benchmark]: Toolchain (without parser) took 2038.72 ms. Allocated memory is still 198.2 MB. Free memory was 161.2 MB in the beginning and 115.5 MB in the end (delta: 45.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 8.0 GB. [2021-06-13 18:56:42,807 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 198.2 MB. Free memory was 179.6 MB in the beginning and 179.5 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 18:56:42,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.91 ms. Allocated memory is still 198.2 MB. Free memory was 161.0 MB in the beginning and 160.0 MB in the end (delta: 951.9 kB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-13 18:56:42,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.61 ms. Allocated memory is still 198.2 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 18:56:42,809 INFO L168 Benchmark]: Boogie Preprocessor took 27.02 ms. Allocated memory is still 198.2 MB. Free memory was 158.0 MB in the beginning and 156.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 18:56:42,809 INFO L168 Benchmark]: RCFGBuilder took 611.00 ms. Allocated memory is still 198.2 MB. Free memory was 156.9 MB in the beginning and 127.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2021-06-13 18:56:42,809 INFO L168 Benchmark]: TraceAbstraction took 909.98 ms. Allocated memory is still 198.2 MB. Free memory was 127.1 MB in the beginning and 115.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.5 MB. Max. memory is 8.0 GB. [2021-06-13 18:56:42,811 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 198.2 MB. Free memory was 179.6 MB in the beginning and 179.5 MB in the end (delta: 106.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 450.91 ms. Allocated memory is still 198.2 MB. Free memory was 161.0 MB in the beginning and 160.0 MB in the end (delta: 951.9 kB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 32.61 ms. Allocated memory is still 198.2 MB. Free memory was 160.0 MB in the beginning and 158.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.02 ms. Allocated memory is still 198.2 MB. Free memory was 158.0 MB in the beginning and 156.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 611.00 ms. Allocated memory is still 198.2 MB. Free memory was 156.9 MB in the beginning and 127.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 909.98 ms. Allocated memory is still 198.2 MB. Free memory was 127.1 MB in the beginning and 115.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.5 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: 321, positive: 300, positive conditional: 300, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 304, positive: 300, positive conditional: 300, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 304, positive: 299, positive conditional: 0, positive unconditional: 299, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 145, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 145, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 35, positive conditional: 2, positive unconditional: 32, negative: 23, negative conditional: 2, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 304, positive: 158, positive conditional: 0, positive unconditional: 158, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 145, unknown conditional: 0, unknown unconditional: 145] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 142, Positive conditional cache size: 1, Positive unconditional cache size: 141, Negative cache size: 5, Negative conditional cache size: 1, Negative unconditional cache size: 4, SemanticConditionEliminator.Independence Queries: [ total: 11, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 35, positive conditional: 2, positive unconditional: 32, negative: 23, negative conditional: 2, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 142, Positive conditional cache size: 1, Positive unconditional cache size: 141, Negative cache size: 5, Negative conditional cache size: 1, Negative unconditional cache size: 4, Eliminated conditions: 9, SemanticConditionEliminator.Independence Queries: [ total: 11, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 35, positive conditional: 2, positive unconditional: 32, negative: 23, negative conditional: 2, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 142, Positive conditional cache size: 1, Positive unconditional cache size: 141, Negative cache size: 5, Negative conditional cache size: 1, Negative unconditional cache size: 4, Eliminated conditions: 9, SemanticConditionEliminator.Independence Queries: [ total: 11, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 10, negative conditional: 1, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 35, positive conditional: 2, positive unconditional: 32, negative: 23, negative conditional: 2, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 142, Positive conditional cache size: 1, Positive unconditional cache size: 141, Negative cache size: 5, Negative conditional cache size: 1, Negative unconditional cache size: 4, Eliminated conditions: 9 ], Maximal queried relation: 3, Independence queries for same thread: 17 - 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: 802.7ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 284.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.6ms SsaConstructionTime, 105.1ms SatisfiabilityAnalysisTime, 235.6ms InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...