/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-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 22:27:08,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 22:27:08,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 22:27:08,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-21 22:27:08,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-21 22:27:08,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-21 22:27:08,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-21 22:27:08,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-21 22:27:08,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-21 22:27:08,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-21 22:27:08,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-21 22:27:08,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-05-21 22:27:08,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 22:27:08,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 22:27:08,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 22:27:08,853 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-Separate.epf [2021-05-21 22:27:08,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 22:27:08,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 22:27:08,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 22:27:08,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 22:27:08,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 22:27:08,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 22:27:08,886 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 22:27:08,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 22:27:08,887 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 22:27:08,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 22:27:08,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 22:27:08,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 22:27:08,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 22:27:08,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 22:27:08,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 22:27:08,888 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 22:27:08,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 22:27:08,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 22:27:08,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 22:27:08,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 22:27:08,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 22:27:08,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 22:27:08,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 22:27:08,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 22:27:08,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 22:27:08,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 22:27:08,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 22:27:08,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 22:27:08,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 22:27:08,890 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 22:27:08,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 22:27:08,890 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 22:27:08,891 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 22:27:09,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 22:27:09,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 22:27:09,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 22:27:09,204 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 22:27:09,205 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 22:27:09,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2021-05-21 22:27:09,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea5ff9db/57eeba9526144b8a9ca848ef03017c6d/FLAG69b7767b7 [2021-05-21 22:27:09,832 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 22:27:09,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i [2021-05-21 22:27:09,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea5ff9db/57eeba9526144b8a9ca848ef03017c6d/FLAG69b7767b7 [2021-05-21 22:27:10,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ea5ff9db/57eeba9526144b8a9ca848ef03017c6d [2021-05-21 22:27:10,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 22:27:10,238 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 22:27:10,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 22:27:10,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 22:27:10,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 22:27:10,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a1071d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10, skipping insertion in model container [2021-05-21 22:27:10,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 22:27:10,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 22:27:10,552 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30454,30467] [2021-05-21 22:27:10,556 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30634,30647] [2021-05-21 22:27:10,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:27:10,572 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 22:27:10,605 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30454,30467] [2021-05-21 22:27:10,607 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/32_pthread5_vs.i[30634,30647] [2021-05-21 22:27:10,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:27:10,668 INFO L208 MainTranslator]: Completed translation [2021-05-21 22:27:10,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10 WrapperNode [2021-05-21 22:27:10,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 22:27:10,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 22:27:10,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 22:27:10,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 22:27:10,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 22:27:10,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 22:27:10,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 22:27:10,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 22:27:10,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (1/1) ... [2021-05-21 22:27:10,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 22:27:10,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 22:27:10,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 22:27:10,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 22:27:10,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (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 [2021-05-21 22:27:10,792 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-05-21 22:27:10,792 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-05-21 22:27:10,793 INFO L130 BoogieDeclarations]: Found specification of procedure thr3 [2021-05-21 22:27:10,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thr3 [2021-05-21 22:27:10,793 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-05-21 22:27:10,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-05-21 22:27:10,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 22:27:10,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 22:27:10,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 22:27:10,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 22:27:10,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 22:27:10,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 22:27:10,795 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 22:27:11,291 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 22:27:11,292 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-05-21 22:27:11,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:27:11 BoogieIcfgContainer [2021-05-21 22:27:11,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 22:27:11,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 22:27:11,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 22:27:11,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 22:27:11,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 10:27:10" (1/3) ... [2021-05-21 22:27:11,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a86dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:27:11, skipping insertion in model container [2021-05-21 22:27:11,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:27:10" (2/3) ... [2021-05-21 22:27:11,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a86dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:27:11, skipping insertion in model container [2021-05-21 22:27:11,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:27:11" (3/3) ... [2021-05-21 22:27:11,299 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_pthread5_vs.i [2021-05-21 22:27:11,304 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 22:27:11,304 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 22:27:11,304 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-05-21 22:27:11,305 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 22:27:11,328 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,328 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,328 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,328 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,329 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,329 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,329 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,329 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,329 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,329 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,329 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,330 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,330 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,330 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,330 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,330 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,330 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,331 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,331 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,331 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,332 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,332 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,332 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,332 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,332 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,332 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,332 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,333 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,333 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,333 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,333 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,333 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,333 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,334 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,334 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,334 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,336 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,337 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,337 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,337 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,337 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,337 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,337 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,337 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,338 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,338 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,338 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,338 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,338 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,338 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,339 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,339 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,339 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,339 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,339 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,339 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,340 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,340 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,340 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,340 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,342 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,342 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,346 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,346 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,346 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,346 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,346 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,348 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,348 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,348 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,349 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,350 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,350 WARN L313 ript$VariableManager]: TermVariabe |thr3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,350 WARN L313 ript$VariableManager]: TermVariabe thr3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,352 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,352 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,352 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,353 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,353 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,355 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:27:11,358 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-05-21 22:27:11,381 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 22:27:11,404 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:27:11,408 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:27:11,408 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:27:11,409 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:27:11,409 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:27:11,409 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:27:11,409 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:27:11,409 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 22:27:11,422 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 87 transitions, 189 flow [2021-05-21 22:27:13,659 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 28288 states, 28278 states have (on average 4.118431289341538) internal successors, (116461), 28287 states have internal predecessors, (116461), 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) [2021-05-21 22:27:13,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 28288 states, 28278 states have (on average 4.118431289341538) internal successors, (116461), 28287 states have internal predecessors, (116461), 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) [2021-05-21 22:27:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-05-21 22:27:13,728 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:27:13,729 INFO L521 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] [2021-05-21 22:27:13,730 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:27:13,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:27:13,738 INFO L82 PathProgramCache]: Analyzing trace with hash -766184955, now seen corresponding path program 1 times [2021-05-21 22:27:13,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:27:13,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998071545] [2021-05-21 22:27:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:27:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:27:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:27:13,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:27:13,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998071545] [2021-05-21 22:27:13,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998071545] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:27:13,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:27:13,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:27:13,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893628734] [2021-05-21 22:27:14,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:27:14,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:27:14,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:27:14,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:27:14,099 INFO L87 Difference]: Start difference. First operand has 28288 states, 28278 states have (on average 4.118431289341538) internal successors, (116461), 28287 states have internal predecessors, (116461), 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 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-05-21 22:27:14,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:27:14,511 INFO L93 Difference]: Finished difference Result 22096 states and 80599 transitions. [2021-05-21 22:27:14,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-21 22:27:14,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2021-05-21 22:27:14,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:27:14,651 INFO L225 Difference]: With dead ends: 22096 [2021-05-21 22:27:14,651 INFO L226 Difference]: Without dead ends: 20496 [2021-05-21 22:27:14,652 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:27:14,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20496 states. [2021-05-21 22:27:15,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20496 to 15872. [2021-05-21 22:27:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15872 states, 15870 states have (on average 3.7107120352867047) internal successors, (58889), 15871 states have internal predecessors, (58889), 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) [2021-05-21 22:27:15,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15872 states to 15872 states and 58889 transitions. [2021-05-21 22:27:15,633 INFO L78 Accepts]: Start accepts. Automaton has 15872 states and 58889 transitions. Word has length 30 [2021-05-21 22:27:15,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:27:15,633 INFO L482 AbstractCegarLoop]: Abstraction has 15872 states and 58889 transitions. [2021-05-21 22:27:15,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-05-21 22:27:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 15872 states and 58889 transitions. [2021-05-21 22:27:15,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-21 22:27:15,637 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:27:15,638 INFO L521 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] [2021-05-21 22:27:15,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 22:27:15,638 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:27:15,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:27:15,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1853454262, now seen corresponding path program 1 times [2021-05-21 22:27:15,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:27:15,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874212990] [2021-05-21 22:27:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:27:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:27:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:27:15,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:27:15,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874212990] [2021-05-21 22:27:15,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874212990] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:27:15,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:27:15,761 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 22:27:15,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100754609] [2021-05-21 22:27:15,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 22:27:15,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:27:15,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 22:27:15,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-21 22:27:15,763 INFO L87 Difference]: Start difference. First operand 15872 states and 58889 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2021-05-21 22:27:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:27:15,992 INFO L93 Difference]: Finished difference Result 14929 states and 50374 transitions. [2021-05-21 22:27:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 22:27:15,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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 33 [2021-05-21 22:27:15,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:27:16,141 INFO L225 Difference]: With dead ends: 14929 [2021-05-21 22:27:16,141 INFO L226 Difference]: Without dead ends: 13417 [2021-05-21 22:27:16,142 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 41.5ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-05-21 22:27:16,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13417 states. [2021-05-21 22:27:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13417 to 7920. [2021-05-21 22:27:16,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7920 states, 7915 states have (on average 3.364497789008212) internal successors, (26630), 7919 states have internal predecessors, (26630), 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) [2021-05-21 22:27:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7920 states to 7920 states and 26630 transitions. [2021-05-21 22:27:16,446 INFO L78 Accepts]: Start accepts. Automaton has 7920 states and 26630 transitions. Word has length 33 [2021-05-21 22:27:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:27:16,447 INFO L482 AbstractCegarLoop]: Abstraction has 7920 states and 26630 transitions. [2021-05-21 22:27:16,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2021-05-21 22:27:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 7920 states and 26630 transitions. [2021-05-21 22:27:16,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-05-21 22:27:16,452 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:27:16,453 INFO L521 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, 1, 1, 1, 1] [2021-05-21 22:27:16,453 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 22:27:16,453 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:27:16,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:27:16,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1172772742, now seen corresponding path program 1 times [2021-05-21 22:27:16,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:27:16,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227520123] [2021-05-21 22:27:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:27:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:27:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:27:16,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:27:16,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227520123] [2021-05-21 22:27:16,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227520123] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:27:16,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:27:16,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 22:27:16,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702129938] [2021-05-21 22:27:16,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 22:27:16,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:27:16,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 22:27:16,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:27:16,525 INFO L87 Difference]: Start difference. First operand 7920 states and 26630 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-05-21 22:27:16,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:27:16,580 INFO L93 Difference]: Finished difference Result 7704 states and 25337 transitions. [2021-05-21 22:27:16,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 22:27:16,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2021-05-21 22:27:16,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:27:16,604 INFO L225 Difference]: With dead ends: 7704 [2021-05-21 22:27:16,605 INFO L226 Difference]: Without dead ends: 6744 [2021-05-21 22:27:16,605 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:27:16,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2021-05-21 22:27:16,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 6552. [2021-05-21 22:27:16,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6552 states, 6548 states have (on average 3.2817654245571166) internal successors, (21489), 6551 states have internal predecessors, (21489), 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) [2021-05-21 22:27:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6552 states to 6552 states and 21489 transitions. [2021-05-21 22:27:16,859 INFO L78 Accepts]: Start accepts. Automaton has 6552 states and 21489 transitions. Word has length 43 [2021-05-21 22:27:16,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:27:16,860 INFO L482 AbstractCegarLoop]: Abstraction has 6552 states and 21489 transitions. [2021-05-21 22:27:16,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2021-05-21 22:27:16,861 INFO L276 IsEmpty]: Start isEmpty. Operand 6552 states and 21489 transitions. [2021-05-21 22:27:16,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-05-21 22:27:16,867 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:27:16,867 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:27:16,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 22:27:16,868 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:27:16,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:27:16,868 INFO L82 PathProgramCache]: Analyzing trace with hash 308674949, now seen corresponding path program 1 times [2021-05-21 22:27:16,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:27:16,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669669063] [2021-05-21 22:27:16,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:27:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:27:16,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:27:16,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:27:16,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669669063] [2021-05-21 22:27:16,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669669063] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:27:16,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:27:16,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 22:27:16,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312802064] [2021-05-21 22:27:16,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 22:27:16,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:27:16,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 22:27:16,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 22:27:16,921 INFO L87 Difference]: Start difference. First operand 6552 states and 21489 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-05-21 22:27:17,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:27:17,047 INFO L93 Difference]: Finished difference Result 5230 states and 16198 transitions. [2021-05-21 22:27:17,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 22:27:17,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 47 [2021-05-21 22:27:17,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:27:17,061 INFO L225 Difference]: With dead ends: 5230 [2021-05-21 22:27:17,062 INFO L226 Difference]: Without dead ends: 4918 [2021-05-21 22:27:17,062 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 46.1ms TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-05-21 22:27:17,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4918 states. [2021-05-21 22:27:17,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4918 to 2530. [2021-05-21 22:27:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2529 states have (on average 3.070383550810597) internal successors, (7765), 2529 states have internal predecessors, (7765), 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) [2021-05-21 22:27:17,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 7765 transitions. [2021-05-21 22:27:17,131 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 7765 transitions. Word has length 47 [2021-05-21 22:27:17,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:27:17,132 INFO L482 AbstractCegarLoop]: Abstraction has 2530 states and 7765 transitions. [2021-05-21 22:27:17,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-05-21 22:27:17,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 7765 transitions. [2021-05-21 22:27:17,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-05-21 22:27:17,137 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:27:17,137 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:27:17,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 22:27:17,137 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:27:17,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:27:17,138 INFO L82 PathProgramCache]: Analyzing trace with hash -718910701, now seen corresponding path program 1 times [2021-05-21 22:27:17,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:27:17,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875282571] [2021-05-21 22:27:17,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:27:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:27:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:27:17,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:27:17,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875282571] [2021-05-21 22:27:17,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875282571] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:27:17,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:27:17,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:27:17,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306605433] [2021-05-21 22:27:17,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:27:17,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:27:17,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:27:17,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:27:17,181 INFO L87 Difference]: Start difference. First operand 2530 states and 7765 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-05-21 22:27:17,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:27:17,202 INFO L93 Difference]: Finished difference Result 3026 states and 9279 transitions. [2021-05-21 22:27:17,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 22:27:17,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2021-05-21 22:27:17,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:27:17,206 INFO L225 Difference]: With dead ends: 3026 [2021-05-21 22:27:17,206 INFO L226 Difference]: Without dead ends: 1391 [2021-05-21 22:27:17,207 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:27:17,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2021-05-21 22:27:17,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1391. [2021-05-21 22:27:17,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 1390 states have (on average 2.8928057553956834) internal successors, (4021), 1390 states have internal predecessors, (4021), 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) [2021-05-21 22:27:17,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4021 transitions. [2021-05-21 22:27:17,278 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4021 transitions. Word has length 49 [2021-05-21 22:27:17,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:27:17,279 INFO L482 AbstractCegarLoop]: Abstraction has 1391 states and 4021 transitions. [2021-05-21 22:27:17,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-05-21 22:27:17,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4021 transitions. [2021-05-21 22:27:17,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-05-21 22:27:17,282 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:27:17,282 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:27:17,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 22:27:17,282 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr3Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:27:17,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:27:17,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1906151227, now seen corresponding path program 1 times [2021-05-21 22:27:17,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:27:17,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193383056] [2021-05-21 22:27:17,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:27:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 22:27:17,296 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 22:27:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 22:27:17,308 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 22:27:17,331 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 22:27:17,331 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 22:27:17,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 22:27:17,332 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE (1/2) [2021-05-21 22:27:17,334 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-21 22:27:17,335 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:27:17,335 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:27:17,335 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:27:17,335 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:27:17,335 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:27:17,335 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:27:17,335 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:27:17,335 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 22:27:17,337 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 87 transitions, 189 flow [2021-05-21 22:27:19,545 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 28288 states, 28278 states have (on average 4.118431289341538) internal successors, (116461), 28287 states have internal predecessors, (116461), 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) [2021-05-21 22:27:19,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 28288 states, 28278 states have (on average 4.118431289341538) internal successors, (116461), 28287 states have internal predecessors, (116461), 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) [2021-05-21 22:27:19,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-21 22:27:19,589 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:27:19,589 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2021-05-21 22:27:19,589 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-05-21 22:27:19,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:27:19,590 INFO L82 PathProgramCache]: Analyzing trace with hash -616361995, now seen corresponding path program 1 times [2021-05-21 22:27:19,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:27:19,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583748390] [2021-05-21 22:27:19,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:27:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 22:27:19,599 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 22:27:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-21 22:27:19,607 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-21 22:27:19,613 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-21 22:27:19,613 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-21 22:27:19,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 22:27:19,614 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-05-21 22:27:19,614 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 22:27:19,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 10:27:19 BasicIcfg [2021-05-21 22:27:19,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 22:27:19,661 INFO L168 Benchmark]: Toolchain (without parser) took 9423.74 ms. Allocated memory was 352.3 MB in the beginning and 3.8 GB in the end (delta: 3.4 GB). Free memory was 314.8 MB in the beginning and 3.1 GB in the end (delta: -2.7 GB). Peak memory consumption was 671.3 MB. Max. memory is 16.0 GB. [2021-05-21 22:27:19,662 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 352.3 MB. Free memory was 333.0 MB in the beginning and 332.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 22:27:19,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.09 ms. Allocated memory is still 352.3 MB. Free memory was 314.6 MB in the beginning and 315.2 MB in the end (delta: -601.6 kB). Peak memory consumption was 4.9 MB. Max. memory is 16.0 GB. [2021-05-21 22:27:19,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.21 ms. Allocated memory is still 352.3 MB. Free memory was 315.2 MB in the beginning and 312.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 22:27:19,663 INFO L168 Benchmark]: Boogie Preprocessor took 22.27 ms. Allocated memory is still 352.3 MB. Free memory was 312.9 MB in the beginning and 311.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 22:27:19,663 INFO L168 Benchmark]: RCFGBuilder took 565.57 ms. Allocated memory is still 352.3 MB. Free memory was 311.0 MB in the beginning and 259.6 MB in the end (delta: 51.4 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. [2021-05-21 22:27:19,664 INFO L168 Benchmark]: TraceAbstraction took 8365.97 ms. Allocated memory was 352.3 MB in the beginning and 3.8 GB in the end (delta: 3.4 GB). Free memory was 259.6 MB in the beginning and 3.1 GB in the end (delta: -2.8 GB). Peak memory consumption was 619.9 MB. Max. memory is 16.0 GB. [2021-05-21 22:27:19,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 352.3 MB. Free memory was 333.0 MB in the beginning and 332.9 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 427.09 ms. Allocated memory is still 352.3 MB. Free memory was 314.6 MB in the beginning and 315.2 MB in the end (delta: -601.6 kB). Peak memory consumption was 4.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.21 ms. Allocated memory is still 352.3 MB. Free memory was 315.2 MB in the beginning and 312.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 22.27 ms. Allocated memory is still 352.3 MB. Free memory was 312.9 MB in the beginning and 311.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 565.57 ms. Allocated memory is still 352.3 MB. Free memory was 311.0 MB in the beginning and 259.6 MB in the end (delta: 51.4 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8365.97 ms. Allocated memory was 352.3 MB in the beginning and 3.8 GB in the end (delta: 3.4 GB). Free memory was 259.6 MB in the beginning and 3.1 GB in the end (delta: -2.8 GB). Peak memory consumption was 619.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 716]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L689] 0 int g0 = 0,g1 = 0,x = 0; VAL [g0=0, g1=0, x=0] [L690] 0 _Bool lock = 0; VAL [g0=0, g1=0, lock=0, x=0] [L691] 0 int mutex = 0; VAL [g0=0, g1=0, lock=0, mutex=0, x=0] [L735] 0 pthread_t t; VAL [g0=0, g1=0, lock=0, mutex=0, x=0] [L736] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [g0=0, g1=0, lock=0, mutex=0, x=0] [L728] CALL 1 __VERIFIER_atomic_acquire() [L694] CALL 1 assume_abort_if_not(mutex==0) [L4] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mutex==0) [L695] 1 mutex = 1 [L728] RET 1 __VERIFIER_atomic_acquire() [L729] 1 g0=1 VAL [g0=1, g1=0, lock=0, mutex=1, x=0] [L729] 1 g1=1 VAL [g0=1, g1=1, lock=0, mutex=1, x=0] [L730] CALL 1 __VERIFIER_atomic_release() [L699] CALL 1 assume_abort_if_not(mutex==1) [L4] COND FALSE 1 !(!cond) [L699] RET 1 assume_abort_if_not(mutex==1) [L700] 1 mutex = 0 [L730] RET 1 __VERIFIER_atomic_release() [L737] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [g0=1, g1=1, lock=0, mutex=0, x=0] [L738] COND TRUE 0 1 VAL [g0=1, g1=1, lock=0, mutex=0, x=0] [L740] FCALL, FORK 0 pthread_create(&t, 0, thr3, 0) VAL [g0=1, g1=1, lock=0, mutex=0, x=0] [L704] CALL 3 __VERIFIER_atomic_acquire() [L694] CALL 3 assume_abort_if_not(mutex==0) [L4] COND FALSE 3 !(!cond) [L694] RET 3 assume_abort_if_not(mutex==0) [L695] 3 mutex = 1 [L704] RET 3 __VERIFIER_atomic_acquire() [L705] COND TRUE 3 __VERIFIER_nondet_int() VAL [g0=1, g1=1, lock=0, mutex=1, x=0] [L707] 3 g0=0 VAL [g0=0, g1=1, lock=0, mutex=1, x=0] [L708] 3 g1=0 VAL [g0=0, g1=0, lock=0, mutex=1, x=0] [L709] 3 lock=0 VAL [g0=0, g1=0, lock=0, mutex=1, x=0] [L711] CALL 3 __VERIFIER_atomic_release() [L699] CALL 3 assume_abort_if_not(mutex==1) [L4] COND FALSE 3 !(!cond) [L699] RET 3 assume_abort_if_not(mutex==1) [L700] 3 mutex = 0 [L711] RET 3 __VERIFIER_atomic_release() [L712] CALL 3 __VERIFIER_atomic_acquire() [L694] CALL 3 assume_abort_if_not(mutex==0) [L4] COND FALSE 3 !(!cond) [L694] RET 3 assume_abort_if_not(mutex==0) [L695] 3 mutex = 1 [L712] RET 3 __VERIFIER_atomic_acquire() [L731] 1 lock=1 VAL [g0=0, g1=0, lock=1, mutex=1, x=0] [L713] COND TRUE 3 \read(lock) VAL [g0=0, g1=0, lock=1, mutex=1, x=0] [L715] 3 x=1 VAL [g0=0, g1=0, lock=1, mutex=1, x=1] [L716] COND TRUE 3 !(g0==1 && g1==1) VAL [g0=0, g1=0, lock=1, mutex=1, x=1] [L716] 3 reach_error() VAL [g0=0, g1=0, lock=1, mutex=1, x=1] - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 124 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5930.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 91.6ms, AutomataDifference: 1243.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2250.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 629 SDtfs, 647 SDslu, 947 SDs, 0 SdLazy, 181 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 141.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 117.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28288occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1668.9ms AutomataMinimizationTime, 5 MinimizatonAttempts, 12701 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.4ms SsaConstructionTime, 100.1ms SatisfiabilityAnalysisTime, 301.9ms InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 585 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 7 procedures, 124 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2278.9ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 43.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2210.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28288occurred in iteration=0, InterpolantAutomatonStates: 0, 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: 1.4ms SsaConstructionTime, 5.3ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 incorrect! Received shutdown request...