/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 12:14:32,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 12:14:32,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 12:14:32,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-12 12:14:32,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 12:14:32,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 12:14:32,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 12:14:32,629 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-Sleep-NoLbe-New_States.epf [2021-03-12 12:14:32,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 12:14:32,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 12:14:32,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 12:14:32,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 12:14:32,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 12:14:32,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 12:14:32,649 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 12:14:32,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 12:14:32,649 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 12:14:32,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 12:14:32,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 12:14:32,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 12:14:32,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 12:14:32,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 12:14:32,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 12:14:32,650 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 12:14:32,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 12:14:32,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 12:14:32,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 12:14:32,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 12:14:32,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 12:14:32,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 12:14:32,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 12:14:32,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 12:14:32,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 12:14:32,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 12:14:32,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 12:14:32,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 12:14:32,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 12:14:32,652 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 12:14:32,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 12:14:32,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 12:14:32,653 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-03-12 12:14:32,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 12:14:32,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 12:14:32,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 12:14:32,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 12:14:32,933 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-12 12:14:32,933 INFO L275 PluginConnector]: CDTParser initialized [2021-03-12 12:14:32,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-03-12 12:14:32,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56d78361/032f885cca2a494aa8d8975e6be7da88/FLAGde9c5660b [2021-03-12 12:14:33,530 INFO L306 CDTParser]: Found 1 translation units. [2021-03-12 12:14:33,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-03-12 12:14:33,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56d78361/032f885cca2a494aa8d8975e6be7da88/FLAGde9c5660b [2021-03-12 12:14:34,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e56d78361/032f885cca2a494aa8d8975e6be7da88 [2021-03-12 12:14:34,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 12:14:34,023 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-12 12:14:34,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-12 12:14:34,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-12 12:14:34,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-12 12:14:34,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c350042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34, skipping insertion in model container [2021-03-12 12:14:34,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-12 12:14:34,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-12 12:14:34,199 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-12 12:14:34,339 WARN L226 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] [2021-03-12 12:14:34,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 12:14:34,350 INFO L203 MainTranslator]: Completed pre-run [2021-03-12 12:14:34,361 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-12 12:14:34,379 WARN L226 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] [2021-03-12 12:14:34,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 12:14:34,439 INFO L208 MainTranslator]: Completed translation [2021-03-12 12:14:34,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34 WrapperNode [2021-03-12 12:14:34,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-12 12:14:34,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 12:14:34,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 12:14:34,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 12:14:34,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 12:14:34,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 12:14:34,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 12:14:34,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 12:14:34,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... [2021-03-12 12:14:34,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 12:14:34,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 12:14:34,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 12:14:34,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 12:14:34,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 12:14:34,547 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-12 12:14:34,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-12 12:14:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-12 12:14:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-12 12:14:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-12 12:14:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-12 12:14:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-12 12:14:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-12 12:14:34,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 12:14:34,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 12:14:34,550 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 12:14:34,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 12:14:34,973 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-12 12:14:34,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 12:14:34 BoogieIcfgContainer [2021-03-12 12:14:34,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 12:14:34,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 12:14:34,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 12:14:34,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 12:14:34,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.03 12:14:34" (1/3) ... [2021-03-12 12:14:34,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507d0962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 12:14:34, skipping insertion in model container [2021-03-12 12:14:34,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 12:14:34" (2/3) ... [2021-03-12 12:14:34,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507d0962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 12:14:34, skipping insertion in model container [2021-03-12 12:14:34,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 12:14:34" (3/3) ... [2021-03-12 12:14:34,983 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-03-12 12:14:34,990 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 12:14:34,990 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 12:14:34,994 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 12:14:34,995 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 12:14:35,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,017 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,019 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,019 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 12:14:35,022 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-12 12:14:35,037 INFO L253 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 [2021-03-12 12:14:35,078 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 12:14:35,086 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 12:14:35,087 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 12:14:35,087 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 12:14:35,087 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 12:14:35,087 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 12:14:35,087 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 12:14:35,087 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 12:14:35,111 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 12:14:35,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 12:14:35,115 INFO L82 PathProgramCache]: Analyzing trace with hash 832237039, now seen corresponding path program 1 times [2021-03-12 12:14:35,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 12:14:35,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139171874] [2021-03-12 12:14:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 12:14:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 12:14:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 12:14:35,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139171874] [2021-03-12 12:14:35,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 12:14:35,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-12 12:14:35,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082677179] [2021-03-12 12:14:35,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-12 12:14:35,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 12:14:35,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-12 12:14:35,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-12 12:14:35,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 12:14:35,418 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 12:14:35,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 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) [2021-03-12 12:14:35,420 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 12:14:35,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 12:14:35,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 12:14:35,620 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 12:14:35,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 12:14:35,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1084250521, now seen corresponding path program 1 times [2021-03-12 12:14:35,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 12:14:35,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867127826] [2021-03-12 12:14:35,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 12:14:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 12:14:35,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 12:14:35,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867127826] [2021-03-12 12:14:35,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 12:14:35,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-12 12:14:35,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723026111] [2021-03-12 12:14:35,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 12:14:35,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 12:14:35,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 12:14:35,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 12:14:35,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 12:14:35,693 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 12:14:35,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2021-03-12 12:14:35,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 12:14:35,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 12:14:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 12:14:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 12:14:35,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 12:14:35,746 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 12:14:35,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 12:14:35,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1479296215, now seen corresponding path program 2 times [2021-03-12 12:14:35,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 12:14:35,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032439314] [2021-03-12 12:14:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 12:14:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 12:14:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 12:14:35,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032439314] [2021-03-12 12:14:35,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 12:14:35,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-12 12:14:35,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723240592] [2021-03-12 12:14:35,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 12:14:35,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 12:14:35,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 12:14:35,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 12:14:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 12:14:35,796 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 12:14:35,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 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) [2021-03-12 12:14:35,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-03-12 12:14:35,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 12:14:35,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 12:14:35,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-12 12:14:35,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 12:14:35,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 12:14:35,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-12 12:14:35,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 12:14:35 BasicIcfg [2021-03-12 12:14:35,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 12:14:35,847 INFO L168 Benchmark]: Toolchain (without parser) took 1827.48 ms. Allocated memory was 255.9 MB in the beginning and 411.0 MB in the end (delta: 155.2 MB). Free memory was 232.7 MB in the beginning and 332.1 MB in the end (delta: -99.5 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.0 GB. [2021-03-12 12:14:35,847 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 12:14:35,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.04 ms. Allocated memory was 255.9 MB in the beginning and 411.0 MB in the end (delta: 155.2 MB). Free memory was 232.2 MB in the beginning and 374.4 MB in the end (delta: -142.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-12 12:14:35,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.82 ms. Allocated memory is still 411.0 MB. Free memory was 374.4 MB in the beginning and 372.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 12:14:35,849 INFO L168 Benchmark]: Boogie Preprocessor took 17.01 ms. Allocated memory is still 411.0 MB. Free memory was 372.4 MB in the beginning and 370.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 12:14:35,850 INFO L168 Benchmark]: RCFGBuilder took 484.44 ms. Allocated memory is still 411.0 MB. Free memory was 370.8 MB in the beginning and 342.0 MB in the end (delta: 28.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-12 12:14:35,850 INFO L168 Benchmark]: TraceAbstraction took 868.51 ms. Allocated memory is still 411.0 MB. Free memory was 341.5 MB in the beginning and 332.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.0 GB. [2021-03-12 12:14:35,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 416.04 ms. Allocated memory was 255.9 MB in the beginning and 411.0 MB in the end (delta: 155.2 MB). Free memory was 232.2 MB in the beginning and 374.4 MB in the end (delta: -142.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.82 ms. Allocated memory is still 411.0 MB. Free memory was 374.4 MB in the beginning and 372.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.01 ms. Allocated memory is still 411.0 MB. Free memory was 372.4 MB in the beginning and 370.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 484.44 ms. Allocated memory is still 411.0 MB. Free memory was 370.8 MB in the beginning and 342.0 MB in the end (delta: 28.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 868.51 ms. Allocated memory is still 411.0 MB. Free memory was 341.5 MB in the beginning and 332.1 MB in the end (delta: 9.3 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 411, positive: 388, positive conditional: 388, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 394, positive: 388, positive conditional: 388, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 394, positive: 387, positive conditional: 0, positive unconditional: 387, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 177, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 177, positive: 171, positive conditional: 0, positive unconditional: 171, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, positive: 32, positive conditional: 5, positive unconditional: 27, negative: 33, negative conditional: 15, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 394, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 177, unknown conditional: 0, unknown unconditional: 177] , Statistics on independence cache: Total cache size (in pairs): 180, Positive cache size: 173, Positive conditional cache size: 1, Positive unconditional cache size: 172, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 14, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, positive: 32, positive conditional: 5, positive unconditional: 27, negative: 33, negative conditional: 15, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 180, Positive cache size: 173, Positive conditional cache size: 1, Positive unconditional cache size: 172, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, Eliminated conditions: 10, SemanticConditionEliminator.Independence Queries: [ total: 14, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, positive: 32, positive conditional: 5, positive unconditional: 27, negative: 33, negative conditional: 15, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 180, Positive cache size: 173, Positive conditional cache size: 1, Positive unconditional cache size: 172, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, Eliminated conditions: 10, SemanticConditionEliminator.Independence Queries: [ total: 14, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, positive: 32, positive conditional: 5, positive unconditional: 27, negative: 33, negative conditional: 15, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 11, negative conditional: 1, negative unconditional: 10, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 180, Positive cache size: 173, Positive conditional cache size: 1, Positive unconditional cache size: 172, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, Eliminated conditions: 10 ], 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 786.0ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.3ms, PartialOrderReductionTime: 293.1ms, 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: 7.9ms SsaConstructionTime, 61.0ms SatisfiabilityAnalysisTime, 241.5ms InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 167 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...