/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-PN-SemanticLbe.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 [2021-03-11 19:22:25,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 19:22:25,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 19:22:25,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 19:22:25,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 19:22:25,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 19:22:25,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 19:22:25,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 19:22:25,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 19:22:25,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 19:22:25,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 19:22:25,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 19:22:25,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 19:22:25,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 19:22:25,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 19:22:25,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 19:22:25,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 19:22:25,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 19:22:25,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 19:22:25,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 19:22:25,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 19:22:25,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 19:22:25,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 19:22:25,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 19:22:25,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 19:22:25,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 19:22:25,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 19:22:25,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 19:22:25,937 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-PN-SemanticLbe.epf [2021-03-11 19:22:25,963 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 19:22:25,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 19:22:25,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 19:22:25,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 19:22:25,965 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 19:22:25,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 19:22:25,966 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 19:22:25,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 19:22:25,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 19:22:25,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 19:22:25,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 19:22:25,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 19:22:25,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 19:22:25,967 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 19:22:25,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 19:22:25,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 19:22:25,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 19:22:25,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 19:22:25,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 19:22:25,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 19:22:25,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 19:22:25,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 19:22:25,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 19:22:25,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 19:22:25,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 19:22:25,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 19:22:25,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 19:22:25,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 19:22:25,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 19:22:26,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 19:22:26,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 19:22:26,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 19:22:26,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 19:22:26,245 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 19:22:26,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-03-11 19:22:26,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b0df0c2/89e5b960943f4417b44799d8355c9a5c/FLAGf652c7ca4 [2021-03-11 19:22:26,871 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 19:22:26,871 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2021-03-11 19:22:26,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b0df0c2/89e5b960943f4417b44799d8355c9a5c/FLAGf652c7ca4 [2021-03-11 19:22:27,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b0df0c2/89e5b960943f4417b44799d8355c9a5c [2021-03-11 19:22:27,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 19:22:27,297 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 19:22:27,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 19:22:27,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 19:22:27,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 19:22:27,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352c31e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27, skipping insertion in model container [2021-03-11 19:22:27,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 19:22:27,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 19:22:27,434 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 19:22:27,555 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] [2021-03-11 19:22:27,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 19:22:27,571 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 19:22:27,580 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 19:22:27,594 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] [2021-03-11 19:22:27,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 19:22:27,632 INFO L208 MainTranslator]: Completed translation [2021-03-11 19:22:27,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27 WrapperNode [2021-03-11 19:22:27,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 19:22:27,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 19:22:27,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 19:22:27,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 19:22:27,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 19:22:27,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 19:22:27,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 19:22:27,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 19:22:27,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (1/1) ... [2021-03-11 19:22:27,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 19:22:27,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 19:22:27,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 19:22:27,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 19:22:27,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (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 [2021-03-11 19:22:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-11 19:22:27,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-11 19:22:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 19:22:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 19:22:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 19:22:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 19:22:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 19:22:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 19:22:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 19:22:27,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 19:22:27,737 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 19:22:28,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 19:22:28,082 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-03-11 19:22:28,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 07:22:28 BoogieIcfgContainer [2021-03-11 19:22:28,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 19:22:28,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 19:22:28,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 19:22:28,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 19:22:28,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 07:22:27" (1/3) ... [2021-03-11 19:22:28,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2620d415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 07:22:28, skipping insertion in model container [2021-03-11 19:22:28,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 07:22:27" (2/3) ... [2021-03-11 19:22:28,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2620d415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 07:22:28, skipping insertion in model container [2021-03-11 19:22:28,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 07:22:28" (3/3) ... [2021-03-11 19:22:28,088 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-03-11 19:22:28,092 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 19:22:28,097 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 19:22:28,098 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 19:22:28,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,119 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,119 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,120 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,121 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,121 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,122 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 19:22:28,125 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 19:22:28,138 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-11 19:22:28,159 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 19:22:28,159 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 19:22:28,159 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 19:22:28,159 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 19:22:28,159 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 19:22:28,160 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 19:22:28,160 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 19:22:28,160 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 19:22:28,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 101 flow [2021-03-11 19:22:28,194 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-03-11 19:22:28,194 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:22:28,200 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. [2021-03-11 19:22:28,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 48 transitions, 101 flow [2021-03-11 19:22:28,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 34 transitions, 71 flow [2021-03-11 19:22:28,210 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 19:22:28,216 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 34 transitions, 71 flow [2021-03-11 19:22:28,218 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 34 transitions, 71 flow [2021-03-11 19:22:28,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 71 flow [2021-03-11 19:22:28,238 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-11 19:22:28,238 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:22:28,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-11 19:22:28,240 INFO L116 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-11 19:22:29,534 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2021-03-11 19:22:29,721 INFO L131 LiptonReduction]: Checked pairs total: 152 [2021-03-11 19:22:29,722 INFO L133 LiptonReduction]: Total number of compositions: 28 [2021-03-11 19:22:29,723 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1515 [2021-03-11 19:22:29,727 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2021-03-11 19:22:29,728 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:22:29,728 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:22:29,728 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 19:22:29,728 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:22:29,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:22:29,731 INFO L82 PathProgramCache]: Analyzing trace with hash 225333056, now seen corresponding path program 1 times [2021-03-11 19:22:29,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:22:29,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835964162] [2021-03-11 19:22:29,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:22:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:22:29,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:22:29,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:22:29,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:22:29,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:22:29,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:22:29,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835964162] [2021-03-11 19:22:29,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:22:29,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 19:22:29,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17588482] [2021-03-11 19:22:29,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 19:22:29,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:22:29,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 19:22:29,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 19:22:29,855 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 76 [2021-03-11 19:22:29,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 10 places, 6 transitions, 15 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-03-11 19:22:29,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:22:29,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 76 [2021-03-11 19:22:29,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:22:29,871 INFO L129 PetriNetUnfolder]: 1/10 cut-off events. [2021-03-11 19:22:29,872 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 19:22:29,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 10 events. 1/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 1 based on Foata normal form. 2/12 useless extension candidates. Maximal degree in co-relation 16. Up to 8 conditions per place. [2021-03-11 19:22:29,872 INFO L132 encePairwiseOnDemand]: 73/76 looper letters, 3 selfloop transitions, 2 changer transitions 1/7 dead transitions. [2021-03-11 19:22:29,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 29 flow [2021-03-11 19:22:29,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 19:22:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 19:22:29,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2021-03-11 19:22:29,880 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2021-03-11 19:22:29,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 166 transitions. [2021-03-11 19:22:29,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 166 transitions. [2021-03-11 19:22:29,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:22:29,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 166 transitions. [2021-03-11 19:22:29,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-03-11 19:22:29,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-03-11 19:22:29,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 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) [2021-03-11 19:22:29,888 INFO L185 Difference]: Start difference. First operand has 10 places, 6 transitions, 15 flow. Second operand 3 states and 166 transitions. [2021-03-11 19:22:29,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 29 flow [2021-03-11 19:22:29,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 28 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 19:22:29,890 INFO L241 Difference]: Finished difference. Result has 12 places, 6 transitions, 22 flow [2021-03-11 19:22:29,892 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=22, PETRI_PLACES=12, PETRI_TRANSITIONS=6} [2021-03-11 19:22:29,892 INFO L335 CegarLoopForPetriNet]: 10 programPoint places, 2 predicate places. [2021-03-11 19:22:29,892 INFO L480 AbstractCegarLoop]: Abstraction has has 12 places, 6 transitions, 22 flow [2021-03-11 19:22:29,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-03-11 19:22:29,893 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 19:22:29,893 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-11 19:22:29,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 19:22:29,893 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 19:22:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 19:22:29,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1604609321, now seen corresponding path program 1 times [2021-03-11 19:22:29,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 19:22:29,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198505370] [2021-03-11 19:22:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 19:22:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 19:22:29,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:22:29,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 19:22:29,967 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-11 19:22:29,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 19:22:29,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 19:22:29,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 19:22:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 19:22:29,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198505370] [2021-03-11 19:22:29,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 19:22:29,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 19:22:29,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795478861] [2021-03-11 19:22:29,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 19:22:29,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 19:22:29,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 19:22:29,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 19:22:29,975 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 76 [2021-03-11 19:22:29,975 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 6 transitions, 22 flow. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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) [2021-03-11 19:22:29,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 19:22:29,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 76 [2021-03-11 19:22:29,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 19:22:29,982 INFO L129 PetriNetUnfolder]: 0/4 cut-off events. [2021-03-11 19:22:29,982 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-11 19:22:29,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 4 events. 0/4 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/5 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-11 19:22:29,983 INFO L132 encePairwiseOnDemand]: 73/76 looper letters, 0 selfloop transitions, 0 changer transitions 4/4 dead transitions. [2021-03-11 19:22:29,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 4 transitions, 17 flow [2021-03-11 19:22:29,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 19:22:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 19:22:29,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 239 transitions. [2021-03-11 19:22:29,987 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7861842105263158 [2021-03-11 19:22:29,987 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 239 transitions. [2021-03-11 19:22:29,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 239 transitions. [2021-03-11 19:22:29,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 19:22:29,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 239 transitions. [2021-03-11 19:22:29,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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) [2021-03-11 19:22:29,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 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) [2021-03-11 19:22:29,992 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 76.0) internal successors, (380), 5 states have internal predecessors, (380), 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) [2021-03-11 19:22:29,992 INFO L185 Difference]: Start difference. First operand has 12 places, 6 transitions, 22 flow. Second operand 4 states and 239 transitions. [2021-03-11 19:22:29,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 4 transitions, 17 flow [2021-03-11 19:22:29,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 4 transitions, 15 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 19:22:29,993 INFO L241 Difference]: Finished difference. Result has 11 places, 0 transitions, 0 flow [2021-03-11 19:22:29,993 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=11, PETRI_DIFFERENCE_MINUEND_PLACES=8, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=11, PETRI_TRANSITIONS=0} [2021-03-11 19:22:29,993 INFO L335 CegarLoopForPetriNet]: 10 programPoint places, 1 predicate places. [2021-03-11 19:22:29,994 INFO L480 AbstractCegarLoop]: Abstraction has has 11 places, 0 transitions, 0 flow [2021-03-11 19:22:29,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 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) [2021-03-11 19:22:29,994 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 19:22:29,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 07:22:29 BasicIcfg [2021-03-11 19:22:29,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 19:22:29,998 INFO L168 Benchmark]: Toolchain (without parser) took 2703.00 ms. Allocated memory is still 364.9 MB. Free memory was 327.8 MB in the beginning and 164.4 MB in the end (delta: 163.4 MB). Peak memory consumption was 165.3 MB. Max. memory is 16.0 GB. [2021-03-11 19:22:29,999 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 364.9 MB. Free memory was 346.0 MB in the beginning and 346.0 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 19:22:30,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.09 ms. Allocated memory is still 364.9 MB. Free memory was 327.2 MB in the beginning and 329.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-03-11 19:22:30,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.69 ms. Allocated memory is still 364.9 MB. Free memory was 329.0 MB in the beginning and 326.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 19:22:30,001 INFO L168 Benchmark]: Boogie Preprocessor took 12.66 ms. Allocated memory is still 364.9 MB. Free memory was 326.9 MB in the beginning and 324.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 19:22:30,004 INFO L168 Benchmark]: RCFGBuilder took 413.69 ms. Allocated memory is still 364.9 MB. Free memory was 324.8 MB in the beginning and 294.4 MB in the end (delta: 30.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-11 19:22:30,004 INFO L168 Benchmark]: TraceAbstraction took 1912.67 ms. Allocated memory is still 364.9 MB. Free memory was 293.4 MB in the beginning and 164.4 MB in the end (delta: 129.0 MB). Peak memory consumption was 130.1 MB. Max. memory is 16.0 GB. [2021-03-11 19:22:30,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 364.9 MB. Free memory was 346.0 MB in the beginning and 346.0 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 332.09 ms. Allocated memory is still 364.9 MB. Free memory was 327.2 MB in the beginning and 329.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.69 ms. Allocated memory is still 364.9 MB. Free memory was 329.0 MB in the beginning and 326.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.66 ms. Allocated memory is still 364.9 MB. Free memory was 326.9 MB in the beginning and 324.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 413.69 ms. Allocated memory is still 364.9 MB. Free memory was 324.8 MB in the beginning and 294.4 MB in the end (delta: 30.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1912.67 ms. Allocated memory is still 364.9 MB. Free memory was 293.4 MB in the beginning and 164.4 MB in the end (delta: 129.0 MB). Peak memory consumption was 130.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1503.3ms, 38 PlacesBefore, 10 PlacesAfterwards, 34 TransitionsBefore, 6 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 152 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 133, positive: 111, positive conditional: 0, positive unconditional: 111, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 106, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 106, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 62, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 133, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 106, unknown conditional: 0, unknown unconditional: 106] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - 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. EmptinessCheckTime: 1.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1838.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 59.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1566.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.8ms SsaConstructionTime, 36.0ms SatisfiabilityAnalysisTime, 92.7ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...