/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-SemanticLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 20:27:07,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 20:27:07,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 20:27:07,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-12 20:27:07,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 20:27:07,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 20:27:07,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 20:27:07,425 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-SemanticLbe-Delay.epf [2021-03-12 20:27:07,464 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 20:27:07,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 20:27:07,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 20:27:07,465 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 20:27:07,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 20:27:07,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 20:27:07,468 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 20:27:07,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 20:27:07,468 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 20:27:07,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 20:27:07,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 20:27:07,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 20:27:07,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 20:27:07,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 20:27:07,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 20:27:07,470 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 20:27:07,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 20:27:07,470 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 20:27:07,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 20:27:07,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 20:27:07,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 20:27:07,470 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 20:27:07,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 20:27:07,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 20:27:07,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 20:27:07,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 20:27:07,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 20:27:07,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 20:27:07,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 20:27:07,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 20:27:07,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 20:27:07,471 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-03-12 20:27:07,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 20:27:07,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 20:27:07,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 20:27:07,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 20:27:07,823 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-12 20:27:07,823 INFO L275 PluginConnector]: CDTParser initialized [2021-03-12 20:27:07,825 INFO L432 ainManager$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 20:27:07,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7258f1c64/7979b73d0c144114a46f11759a53ddbd/FLAGf6c42377f [2021-03-12 20:27:08,355 INFO L306 CDTParser]: Found 1 translation units. [2021-03-12 20:27:08,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-03-12 20:27:08,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7258f1c64/7979b73d0c144114a46f11759a53ddbd/FLAGf6c42377f [2021-03-12 20:27:08,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7258f1c64/7979b73d0c144114a46f11759a53ddbd [2021-03-12 20:27:08,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 20:27:08,671 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-12 20:27:08,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-12 20:27:08,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-12 20:27:08,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-12 20:27:08,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 08:27:08" (1/1) ... [2021-03-12 20:27:08,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e0de4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:08, skipping insertion in model container [2021-03-12 20:27:08,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 08:27:08" (1/1) ... [2021-03-12 20:27:08,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-12 20:27:08,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-12 20:27:08,899 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-12 20:27:09,048 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 20:27:09,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 20:27:09,064 INFO L203 MainTranslator]: Completed pre-run [2021-03-12 20:27:09,075 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-12 20:27:09,089 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 20:27:09,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-12 20:27:09,143 INFO L208 MainTranslator]: Completed translation [2021-03-12 20:27:09,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09 WrapperNode [2021-03-12 20:27:09,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-12 20:27:09,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 20:27:09,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 20:27:09,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 20:27:09,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (1/1) ... [2021-03-12 20:27:09,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (1/1) ... [2021-03-12 20:27:09,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 20:27:09,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 20:27:09,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 20:27:09,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 20:27:09,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (1/1) ... [2021-03-12 20:27:09,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (1/1) ... [2021-03-12 20:27:09,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (1/1) ... [2021-03-12 20:27:09,187 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (1/1) ... [2021-03-12 20:27:09,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (1/1) ... [2021-03-12 20:27:09,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (1/1) ... [2021-03-12 20:27:09,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (1/1) ... [2021-03-12 20:27:09,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 20:27:09,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 20:27:09,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 20:27:09,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 20:27:09,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (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 20:27:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-12 20:27:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-12 20:27:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-12 20:27:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-12 20:27:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-12 20:27:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-12 20:27:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-12 20:27:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-12 20:27:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 20:27:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 20:27:09,298 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 20:27:09,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 20:27:09,800 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-12 20:27:09,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 08:27:09 BoogieIcfgContainer [2021-03-12 20:27:09,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 20:27:09,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 20:27:09,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 20:27:09,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 20:27:09,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.03 08:27:08" (1/3) ... [2021-03-12 20:27:09,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6392ec8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 08:27:09, skipping insertion in model container [2021-03-12 20:27:09,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 08:27:09" (2/3) ... [2021-03-12 20:27:09,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6392ec8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 08:27:09, skipping insertion in model container [2021-03-12 20:27:09,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 08:27:09" (3/3) ... [2021-03-12 20:27:09,814 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-03-12 20:27:09,820 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 20:27:09,821 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 20:27:09,826 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 20:27:09,827 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 20:27:09,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-12 20:27:09,878 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-12 20:27:09,894 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 20:27:09,937 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 20:27:09,938 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 20:27:09,938 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 20:27:09,938 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 20:27:09,938 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 20:27:09,938 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 20:27:09,938 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 20:27:09,938 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 20:27:09,945 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-12 20:27:09,945 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 48 transitions, 101 flow [2021-03-12 20:27:09,947 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 48 transitions, 101 flow [2021-03-12 20:27:09,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 101 flow [2021-03-12 20:27:09,969 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-03-12 20:27:09,969 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-12 20:27:09,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 47 events. 1/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2021-03-12 20:27:09,972 INFO L116 LiptonReduction]: Number of co-enabled transitions 300 [2021-03-12 20:27:11,793 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-12 20:27:11,991 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-12 20:27:12,056 INFO L131 LiptonReduction]: Checked pairs total: 488 [2021-03-12 20:27:12,056 INFO L133 LiptonReduction]: Total number of compositions: 44 [2021-03-12 20:27:12,129 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 20:27:12,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 20:27:12,134 INFO L82 PathProgramCache]: Analyzing trace with hash -2088603843, now seen corresponding path program 1 times [2021-03-12 20:27:12,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 20:27:12,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501227864] [2021-03-12 20:27:12,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 20:27:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 20:27:12,325 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 20:27:12,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501227864] [2021-03-12 20:27:12,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 20:27:12,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-12 20:27:12,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855738420] [2021-03-12 20:27:12,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 20:27:12,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 20:27:12,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 20:27:12,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 20:27:12,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 20:27:12,344 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 20:27:12,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 20:27:12,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 20:27:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 20:27:12,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 20:27:12,400 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 20:27:12,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 20:27:12,401 INFO L82 PathProgramCache]: Analyzing trace with hash -2088495033, now seen corresponding path program 2 times [2021-03-12 20:27:12,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 20:27:12,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587194232] [2021-03-12 20:27:12,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 20:27:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 20:27:12,452 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 20:27:12,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587194232] [2021-03-12 20:27:12,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 20:27:12,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-12 20:27:12,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022067244] [2021-03-12 20:27:12,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-12 20:27:12,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 20:27:12,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-12 20:27:12,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-12 20:27:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 20:27:12,455 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 20:27:12,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 20:27:12,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 20:27:12,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 20:27:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 20:27:12,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 20:27:12,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-12 20:27:12,471 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-12 20:27:12,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 20:27:12,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2056320753, now seen corresponding path program 3 times [2021-03-12 20:27:12,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 20:27:12,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191215634] [2021-03-12 20:27:12,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 20:27:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 20:27:12,521 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 20:27:12,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191215634] [2021-03-12 20:27:12,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 20:27:12,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-12 20:27:12,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9811477] [2021-03-12 20:27:12,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-12 20:27:12,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 20:27:12,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-12 20:27:12,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-12 20:27:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 20:27:12,531 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 20:27:12,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 20:27:12,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 20:27:12,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-03-12 20:27:12,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 20:27:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 20:27:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-12 20:27:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-12 20:27:12,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-12 20:27:12,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 08:27:12 BasicIcfg [2021-03-12 20:27:12,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-12 20:27:12,593 INFO L168 Benchmark]: Toolchain (without parser) took 3924.15 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 317.9 MB in the beginning and 308.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 79.7 MB. Max. memory is 16.0 GB. [2021-03-12 20:27:12,594 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 354.4 MB. Free memory is still 335.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-12 20:27:12,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.17 ms. Allocated memory is still 354.4 MB. Free memory was 317.3 MB in the beginning and 316.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-03-12 20:27:12,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.91 ms. Allocated memory is still 354.4 MB. Free memory was 316.1 MB in the beginning and 314.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 20:27:12,598 INFO L168 Benchmark]: Boogie Preprocessor took 18.45 ms. Allocated memory is still 354.4 MB. Free memory was 314.0 MB in the beginning and 313.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-12 20:27:12,599 INFO L168 Benchmark]: RCFGBuilder took 606.88 ms. Allocated memory is still 354.4 MB. Free memory was 311.9 MB in the beginning and 282.6 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-12 20:27:12,600 INFO L168 Benchmark]: TraceAbstraction took 2785.10 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 281.5 MB in the beginning and 308.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.0 GB. [2021-03-12 20:27:12,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 354.4 MB. Free memory is still 335.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 471.17 ms. Allocated memory is still 354.4 MB. Free memory was 317.3 MB in the beginning and 316.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.91 ms. Allocated memory is still 354.4 MB. Free memory was 316.1 MB in the beginning and 314.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.45 ms. Allocated memory is still 354.4 MB. Free memory was 314.0 MB in the beginning and 313.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 606.88 ms. Allocated memory is still 354.4 MB. Free memory was 311.9 MB in the beginning and 282.6 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2785.10 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 281.5 MB in the beginning and 308.8 MB in the end (delta: -27.3 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2109.3ms, 51 PlacesBefore, 14 PlacesAfterwards, 48 TransitionsBefore, 11 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 488 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 369, positive: 304, positive conditional: 0, positive unconditional: 304, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 234, positive: 208, positive conditional: 0, positive unconditional: 208, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 234, positive: 204, positive conditional: 0, positive unconditional: 204, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 154, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 369, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 234, unknown conditional: 0, unknown unconditional: 234] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 47, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 29, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 8, negative conditional: 2, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, positive: 23, positive conditional: 12, positive unconditional: 12, negative: 79, negative conditional: 14, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 9, Positive conditional cache size: 2, Positive unconditional cache size: 7, Negative cache size: 8, Negative conditional cache size: 2, Negative unconditional cache size: 6, SemanticConditionEliminator.Independence Queries: [ total: 17, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 8, negative conditional: 2, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, positive: 23, positive conditional: 12, positive unconditional: 12, negative: 79, negative conditional: 14, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 9, Positive conditional cache size: 2, Positive unconditional cache size: 7, Negative cache size: 8, Negative conditional cache size: 2, Negative unconditional cache size: 6, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 17, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 8, negative conditional: 2, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, positive: 23, positive conditional: 12, positive unconditional: 12, negative: 79, negative conditional: 14, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 9, Positive conditional cache size: 2, Positive unconditional cache size: 7, Negative cache size: 8, Negative conditional cache size: 2, Negative unconditional cache size: 6, Eliminated conditions: 11, SemanticConditionEliminator.Independence Queries: [ total: 17, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 8, negative conditional: 2, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 102, positive: 23, positive conditional: 12, positive unconditional: 12, negative: 79, negative conditional: 14, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 12, negative conditional: 1, negative unconditional: 11, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 9, Positive conditional cache size: 2, Positive unconditional cache size: 7, Negative cache size: 8, Negative conditional cache size: 2, Negative unconditional cache size: 6, Eliminated conditions: 11 ], Maximal queried relation: 3, Independence queries for same thread: 18 - 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: 2674.1ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2128.7ms, PartialOrderReductionTime: 179.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 10, 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: 6.0ms SsaConstructionTime, 65.4ms SatisfiabilityAnalysisTime, 127.8ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 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...