/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/dekker-b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:41:40,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:41:40,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:41:40,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 22:41:40,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 22:41:40,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 22:41:40,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 22:41:40,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-10-13 22:41:40,954 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:41:40,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:41:40,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 22:41:40,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 22:41:40,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:41:40,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:41:40,956 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:41:40,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:41:40,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:41:40,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:41:40,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:41:40,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:41:40,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:41:40,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:41:40,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:41:40,957 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:41:40,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:41:40,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:41:40,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:41:40,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:41:40,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:41:40,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:41:40,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:41:40,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:41:40,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:41:40,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:41:40,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:41:40,965 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:41:40,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:41:40,966 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:41:40,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 22:41:40,966 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:41:41,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:41:41,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:41:41,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:41:41,222 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:41:41,223 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:41:41,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker-b.i [2021-10-13 22:41:41,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579cbf3a1/6511b864f8ba42cb8ec7f741d33f289b/FLAG305355444 [2021-10-13 22:41:41,699 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:41:41,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i [2021-10-13 22:41:41,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579cbf3a1/6511b864f8ba42cb8ec7f741d33f289b/FLAG305355444 [2021-10-13 22:41:42,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579cbf3a1/6511b864f8ba42cb8ec7f741d33f289b [2021-10-13 22:41:42,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:41:42,088 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:41:42,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:41:42,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:41:42,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:41:42,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd5b0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42, skipping insertion in model container [2021-10-13 22:41:42,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:41:42,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:41:42,417 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i[30165,30178] [2021-10-13 22:41:42,422 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i[30411,30424] [2021-10-13 22:41:42,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:41:42,438 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:41:42,470 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i[30165,30178] [2021-10-13 22:41:42,472 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker-b.i[30411,30424] [2021-10-13 22:41:42,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:41:42,502 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:41:42,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42 WrapperNode [2021-10-13 22:41:42,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:41:42,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:41:42,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:41:42,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:41:42,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:41:42,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:41:42,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:41:42,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:41:42,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:41:42,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:41:42,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:41:42,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:41:42,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (1/1) ... [2021-10-13 22:41:42,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:41:42,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:41:42,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 22:41:42,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 22:41:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 22:41:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-10-13 22:41:42,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-10-13 22:41:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-13 22:41:42,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-13 22:41:42,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:41:42,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:41:42,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:41:42,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:41:42,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:41:42,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:41:42,664 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:41:42,933 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:41:42,933 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 22:41:42,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:41:42 BoogieIcfgContainer [2021-10-13 22:41:42,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:41:42,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:41:42,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:41:42,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:41:42,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:41:42" (1/3) ... [2021-10-13 22:41:42,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7881aa89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:41:42, skipping insertion in model container [2021-10-13 22:41:42,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:41:42" (2/3) ... [2021-10-13 22:41:42,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7881aa89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:41:42, skipping insertion in model container [2021-10-13 22:41:42,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:41:42" (3/3) ... [2021-10-13 22:41:42,941 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker-b.i [2021-10-13 22:41:42,945 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 22:41:42,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:41:42,945 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 22:41:42,945 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:41:42,984 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,985 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,985 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,985 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,985 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,985 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,985 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,986 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,987 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,987 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,987 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,987 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,989 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,989 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,990 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,990 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,990 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,990 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,994 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,994 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,994 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,994 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,998 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,999 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,999 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:42,999 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:41:43,004 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 22:41:43,042 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:41:43,049 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 22:41:43,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 22:41:43,064 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 92 transitions, 200 flow [2021-10-13 22:41:43,140 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1171 states, 1168 states have (on average 3.212328767123288) internal successors, (3752), 1170 states have internal predecessors, (3752), 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) [2021-10-13 22:41:43,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 1171 states, 1168 states have (on average 3.212328767123288) internal successors, (3752), 1170 states have internal predecessors, (3752), 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) [2021-10-13 22:41:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 22:41:43,152 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:43,153 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:43,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:43,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:43,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1457031492, now seen corresponding path program 1 times [2021-10-13 22:41:43,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:43,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991438902] [2021-10-13 22:41:43,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:43,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:43,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:43,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:43,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991438902] [2021-10-13 22:41:43,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991438902] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:43,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:43,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 22:41:43,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861355431] [2021-10-13 22:41:43,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 22:41:43,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:43,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 22:41:43,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 22:41:43,400 INFO L87 Difference]: Start difference. First operand has 1171 states, 1168 states have (on average 3.212328767123288) internal successors, (3752), 1170 states have internal predecessors, (3752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-10-13 22:41:43,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:43,446 INFO L93 Difference]: Finished difference Result 1077 states and 3097 transitions. [2021-10-13 22:41:43,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 22:41:43,448 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-13 22:41:43,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:43,473 INFO L225 Difference]: With dead ends: 1077 [2021-10-13 22:41:43,473 INFO L226 Difference]: Without dead ends: 1076 [2021-10-13 22:41:43,474 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 22:41:43,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2021-10-13 22:41:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1076. [2021-10-13 22:41:43,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 1073 states have (on average 2.885368126747437) internal successors, (3096), 1075 states have internal predecessors, (3096), 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) [2021-10-13 22:41:43,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 3096 transitions. [2021-10-13 22:41:43,575 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 3096 transitions. Word has length 29 [2021-10-13 22:41:43,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:43,576 INFO L470 AbstractCegarLoop]: Abstraction has 1076 states and 3096 transitions. [2021-10-13 22:41:43,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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) [2021-10-13 22:41:43,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 3096 transitions. [2021-10-13 22:41:43,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 22:41:43,577 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:43,577 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:43,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:41:43,578 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:43,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:43,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1457061283, now seen corresponding path program 1 times [2021-10-13 22:41:43,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:43,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820964607] [2021-10-13 22:41:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:43,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:43,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:43,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:43,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820964607] [2021-10-13 22:41:43,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820964607] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:43,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:43,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:43,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987203959] [2021-10-13 22:41:43,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:43,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:43,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:43,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:43,665 INFO L87 Difference]: Start difference. First operand 1076 states and 3096 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 22:41:43,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:43,707 INFO L93 Difference]: Finished difference Result 1101 states and 3080 transitions. [2021-10-13 22:41:43,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:43,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-13 22:41:43,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:43,720 INFO L225 Difference]: With dead ends: 1101 [2021-10-13 22:41:43,720 INFO L226 Difference]: Without dead ends: 921 [2021-10-13 22:41:43,721 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:43,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-10-13 22:41:43,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 852. [2021-10-13 22:41:43,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 849 states have (on average 2.828032979976443) internal successors, (2401), 851 states have internal predecessors, (2401), 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) [2021-10-13 22:41:43,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 2401 transitions. [2021-10-13 22:41:43,745 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 2401 transitions. Word has length 29 [2021-10-13 22:41:43,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:43,746 INFO L470 AbstractCegarLoop]: Abstraction has 852 states and 2401 transitions. [2021-10-13 22:41:43,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-10-13 22:41:43,746 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 2401 transitions. [2021-10-13 22:41:43,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 22:41:43,748 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:43,749 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:43,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:41:43,749 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:43,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:43,750 INFO L82 PathProgramCache]: Analyzing trace with hash 295483908, now seen corresponding path program 1 times [2021-10-13 22:41:43,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:43,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117622141] [2021-10-13 22:41:43,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:43,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:43,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:43,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117622141] [2021-10-13 22:41:43,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117622141] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:43,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:43,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:43,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559384989] [2021-10-13 22:41:43,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:43,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:43,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:43,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:43,795 INFO L87 Difference]: Start difference. First operand 852 states and 2401 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-10-13 22:41:43,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:43,813 INFO L93 Difference]: Finished difference Result 787 states and 2165 transitions. [2021-10-13 22:41:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:43,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-13 22:41:43,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:43,817 INFO L225 Difference]: With dead ends: 787 [2021-10-13 22:41:43,817 INFO L226 Difference]: Without dead ends: 550 [2021-10-13 22:41:43,817 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:43,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-10-13 22:41:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2021-10-13 22:41:43,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 548 states have (on average 2.7627737226277373) internal successors, (1514), 549 states have internal predecessors, (1514), 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) [2021-10-13 22:41:43,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1514 transitions. [2021-10-13 22:41:43,830 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1514 transitions. Word has length 35 [2021-10-13 22:41:43,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:43,831 INFO L470 AbstractCegarLoop]: Abstraction has 550 states and 1514 transitions. [2021-10-13 22:41:43,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-10-13 22:41:43,831 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1514 transitions. [2021-10-13 22:41:43,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 22:41:43,833 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:43,833 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:43,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:41:43,833 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:43,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:43,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1670524881, now seen corresponding path program 1 times [2021-10-13 22:41:43,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:43,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86284793] [2021-10-13 22:41:43,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:43,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:43,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:43,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:43,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86284793] [2021-10-13 22:41:43,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86284793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:43,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:43,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:43,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412546634] [2021-10-13 22:41:43,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:43,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:43,899 INFO L87 Difference]: Start difference. First operand 550 states and 1514 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-10-13 22:41:43,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:43,921 INFO L93 Difference]: Finished difference Result 550 states and 1494 transitions. [2021-10-13 22:41:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:43,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-13 22:41:43,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:43,925 INFO L225 Difference]: With dead ends: 550 [2021-10-13 22:41:43,925 INFO L226 Difference]: Without dead ends: 482 [2021-10-13 22:41:43,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:43,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-10-13 22:41:43,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2021-10-13 22:41:43,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 480 states have (on average 2.7083333333333335) internal successors, (1300), 481 states have internal predecessors, (1300), 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) [2021-10-13 22:41:43,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1300 transitions. [2021-10-13 22:41:43,940 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1300 transitions. Word has length 39 [2021-10-13 22:41:43,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:43,941 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 1300 transitions. [2021-10-13 22:41:43,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-10-13 22:41:43,942 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1300 transitions. [2021-10-13 22:41:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 22:41:43,943 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:43,943 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:43,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:41:43,944 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-10-13 22:41:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:43,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1194920259, now seen corresponding path program 1 times [2021-10-13 22:41:43,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:43,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838187675] [2021-10-13 22:41:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:43,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:44,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:44,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838187675] [2021-10-13 22:41:44,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838187675] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:44,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:44,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 22:41:44,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89644216] [2021-10-13 22:41:44,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 22:41:44,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:44,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 22:41:44,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:44,010 INFO L87 Difference]: Start difference. First operand 482 states and 1300 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-10-13 22:41:44,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:44,027 INFO L93 Difference]: Finished difference Result 317 states and 928 transitions. [2021-10-13 22:41:44,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 22:41:44,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-13 22:41:44,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:44,028 INFO L225 Difference]: With dead ends: 317 [2021-10-13 22:41:44,028 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 22:41:44,029 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 22:41:44,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 22:41:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 22:41:44,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 22:41:44,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-10-13 22:41:44,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:44,030 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 22:41:44,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-10-13 22:41:44,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 22:41:44,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 22:41:44,047 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:44,048 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:44,048 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:41:44,048 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 22:41:44,048 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:44,049 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:41:44,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 22:41:44,054 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 22:41:44,054 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 22:41:44,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:41:44 BasicIcfg [2021-10-13 22:41:44,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 22:41:44,057 INFO L168 Benchmark]: Toolchain (without parser) took 1968.32 ms. Allocated memory was 199.2 MB in the beginning and 239.1 MB in the end (delta: 39.8 MB). Free memory was 146.6 MB in the beginning and 212.2 MB in the end (delta: -65.5 MB). Peak memory consumption was 113.2 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:44,057 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 199.2 MB. Free memory is still 164.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:41:44,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.78 ms. Allocated memory was 199.2 MB in the beginning and 239.1 MB in the end (delta: 39.8 MB). Free memory was 146.4 MB in the beginning and 207.7 MB in the end (delta: -61.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:44,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.90 ms. Allocated memory is still 239.1 MB. Free memory was 207.7 MB in the beginning and 205.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:44,061 INFO L168 Benchmark]: Boogie Preprocessor took 28.70 ms. Allocated memory is still 239.1 MB. Free memory was 205.6 MB in the beginning and 204.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:44,061 INFO L168 Benchmark]: RCFGBuilder took 366.28 ms. Allocated memory is still 239.1 MB. Free memory was 204.6 MB in the beginning and 191.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:44,062 INFO L168 Benchmark]: TraceAbstraction took 1119.87 ms. Allocated memory is still 239.1 MB. Free memory was 191.0 MB in the beginning and 212.2 MB in the end (delta: -21.2 MB). Peak memory consumption was 117.7 MB. Max. memory is 8.0 GB. [2021-10-13 22:41:44,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 199.2 MB. Free memory is still 164.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 413.78 ms. Allocated memory was 199.2 MB in the beginning and 239.1 MB in the end (delta: 39.8 MB). Free memory was 146.4 MB in the beginning and 207.7 MB in the end (delta: -61.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 34.90 ms. Allocated memory is still 239.1 MB. Free memory was 207.7 MB in the beginning and 205.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.70 ms. Allocated memory is still 239.1 MB. Free memory was 205.6 MB in the beginning and 204.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 366.28 ms. Allocated memory is still 239.1 MB. Free memory was 204.6 MB in the beginning and 191.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1119.87 ms. Allocated memory is still 239.1 MB. Free memory was 191.0 MB in the beginning and 212.2 MB in the end (delta: -21.2 MB). Peak memory consumption was 117.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 716]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 701]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 116 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1012.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 32.8ms, AutomataDifference: 218.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 91.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 389 SDtfs, 122 SDslu, 187 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1171occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 142.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.4ms SsaConstructionTime, 90.6ms SatisfiabilityAnalysisTime, 231.6ms InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 22:41:44,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...