/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 15:06:40,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 15:06:40,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 15:06:40,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 15:06:40,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-10 15:06:40,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-10 15:06:40,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-10 15:06:40,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-10 15:06:40,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-10 15:06:40,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-10 15:06:40,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-10 15:06:40,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-10 15:06:40,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-10 15:06:40,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-10 15:06:40,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-10 15:06:40,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-10 15:06:40,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-10 15:06:40,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 15:06:40,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 15:06:40,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 15:06:40,351 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 [2021-03-10 15:06:40,388 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 15:06:40,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 15:06:40,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 15:06:40,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 15:06:40,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 15:06:40,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 15:06:40,390 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 15:06:40,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 15:06:40,391 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 15:06:40,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 15:06:40,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 15:06:40,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 15:06:40,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 15:06:40,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 15:06:40,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 15:06:40,392 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 15:06:40,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 15:06:40,392 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 15:06:40,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 15:06:40,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 15:06:40,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 15:06:40,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 15:06:40,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 15:06:40,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 15:06:40,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 15:06:40,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 15:06:40,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 15:06:40,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 15:06:40,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 15:06:40,394 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 15:06:40,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 15:06:40,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 15:06:40,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 15:06:40,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 15:06:40,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 15:06:40,756 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 15:06:40,759 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 15:06:40,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-03-10 15:06:40,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a10cf6c/35e4cbeb3bbd42faa3312c6135ca989b/FLAG7ed54fd43 [2021-03-10 15:06:41,357 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 15:06:41,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2021-03-10 15:06:41,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a10cf6c/35e4cbeb3bbd42faa3312c6135ca989b/FLAG7ed54fd43 [2021-03-10 15:06:41,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41a10cf6c/35e4cbeb3bbd42faa3312c6135ca989b [2021-03-10 15:06:41,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 15:06:41,835 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 15:06:41,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 15:06:41,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 15:06:41,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 15:06:41,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 03:06:41" (1/1) ... [2021-03-10 15:06:41,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3536757a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:41, skipping insertion in model container [2021-03-10 15:06:41,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 03:06:41" (1/1) ... [2021-03-10 15:06:41,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 15:06:41,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 15:06:41,996 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 15:06:42,134 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2021-03-10 15:06:42,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 15:06:42,145 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 15:06:42,157 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 15:06:42,173 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i[31246,31259] [2021-03-10 15:06:42,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 15:06:42,239 INFO L208 MainTranslator]: Completed translation [2021-03-10 15:06:42,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42 WrapperNode [2021-03-10 15:06:42,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 15:06:42,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 15:06:42,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 15:06:42,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 15:06:42,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... [2021-03-10 15:06:42,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... [2021-03-10 15:06:42,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 15:06:42,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 15:06:42,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 15:06:42,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 15:06:42,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... [2021-03-10 15:06:42,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... [2021-03-10 15:06:42,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... [2021-03-10 15:06:42,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... [2021-03-10 15:06:42,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... [2021-03-10 15:06:42,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... [2021-03-10 15:06:42,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... [2021-03-10 15:06:42,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 15:06:42,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 15:06:42,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 15:06:42,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 15:06:42,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 15:06:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 15:06:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 15:06:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 15:06:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2021-03-10 15:06:42,382 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2021-03-10 15:06:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 15:06:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 15:06:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 15:06:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 15:06:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 15:06:42,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 15:06:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2021-03-10 15:06:42,383 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2021-03-10 15:06:42,384 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 15:06:42,797 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 15:06:42,797 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-10 15:06:42,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 03:06:42 BoogieIcfgContainer [2021-03-10 15:06:42,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 15:06:42,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 15:06:42,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 15:06:42,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 15:06:42,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 03:06:41" (1/3) ... [2021-03-10 15:06:42,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1f58df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 03:06:42, skipping insertion in model container [2021-03-10 15:06:42,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 03:06:42" (2/3) ... [2021-03-10 15:06:42,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1f58df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 03:06:42, skipping insertion in model container [2021-03-10 15:06:42,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 03:06:42" (3/3) ... [2021-03-10 15:06:42,804 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2021-03-10 15:06:42,809 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 15:06:42,809 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 15:06:42,817 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-10 15:06:42,818 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 15:06:42,856 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,856 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,856 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,856 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,856 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,857 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,857 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,857 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,857 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,857 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,857 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,858 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,858 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,858 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,858 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,859 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,859 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,859 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,861 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,861 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,861 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,861 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,861 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,862 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,862 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,862 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,862 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,863 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,864 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,864 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,864 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,865 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,865 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,865 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,865 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,865 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,865 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,865 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,865 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,866 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,867 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,867 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,867 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,867 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,867 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,868 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,877 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,877 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,877 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,877 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,877 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,877 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,877 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,878 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,878 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,878 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,883 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,883 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,883 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,883 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,883 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,884 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,884 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,884 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,884 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,884 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,884 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,884 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,884 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,885 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,885 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,885 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,886 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,886 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,887 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,887 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,887 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,887 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,887 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,887 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,888 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,888 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,889 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,889 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,889 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,889 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,889 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,890 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,890 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,893 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,893 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,893 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,894 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,900 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,900 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,901 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,901 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,901 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,901 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,901 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,901 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,901 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,903 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,903 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,903 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,904 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,904 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,904 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,906 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,906 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,907 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,907 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,907 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,907 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,907 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,907 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,907 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,908 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,909 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,909 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,909 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,909 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,909 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 15:06:42,930 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2021-03-10 15:06:42,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-10 15:06:42,958 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 15:06:42,958 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 15:06:42,958 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 15:06:42,958 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 15:06:42,958 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 15:06:42,959 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 15:06:42,959 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 15:06:42,959 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 15:06:42,967 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 107 places, 108 transitions, 284 flow [2021-03-10 15:06:46,015 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 45602 states, 45598 states have (on average 4.12983025571297) internal successors, (188312), 45601 states have internal predecessors, (188312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:46,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 45602 states, 45598 states have (on average 4.12983025571297) internal successors, (188312), 45601 states have internal predecessors, (188312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:46,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-03-10 15:06:46,116 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:06:46,116 INFO L519 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] [2021-03-10 15:06:46,117 INFO L428 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:06:46,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:06:46,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1965809367, now seen corresponding path program 1 times [2021-03-10 15:06:46,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:06:46,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342782344] [2021-03-10 15:06:46,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:06:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:06:46,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:06:46,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342782344] [2021-03-10 15:06:46,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:06:46,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:06:46,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576112734] [2021-03-10 15:06:46,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:06:46,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:06:46,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:06:46,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:06:46,484 INFO L87 Difference]: Start difference. First operand has 45602 states, 45598 states have (on average 4.12983025571297) internal successors, (188312), 45601 states have internal predecessors, (188312), 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 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:06:48,097 INFO L93 Difference]: Finished difference Result 103328 states and 406066 transitions. [2021-03-10 15:06:48,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 15:06:48,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-03-10 15:06:48,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:06:48,761 INFO L225 Difference]: With dead ends: 103328 [2021-03-10 15:06:48,761 INFO L226 Difference]: Without dead ends: 79018 [2021-03-10 15:06:48,764 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 58.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 15:06:49,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79018 states. [2021-03-10 15:06:51,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79018 to 48103. [2021-03-10 15:06:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48103 states, 48100 states have (on average 3.9972141372141374) internal successors, (192266), 48102 states have internal predecessors, (192266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:51,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48103 states to 48103 states and 192266 transitions. [2021-03-10 15:06:51,705 INFO L78 Accepts]: Start accepts. Automaton has 48103 states and 192266 transitions. Word has length 31 [2021-03-10 15:06:51,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:06:51,706 INFO L480 AbstractCegarLoop]: Abstraction has 48103 states and 192266 transitions. [2021-03-10 15:06:51,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:51,706 INFO L276 IsEmpty]: Start isEmpty. Operand 48103 states and 192266 transitions. [2021-03-10 15:06:51,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 15:06:51,715 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:06:51,715 INFO L519 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] [2021-03-10 15:06:51,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 15:06:51,716 INFO L428 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:06:51,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:06:51,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1649394302, now seen corresponding path program 1 times [2021-03-10 15:06:51,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:06:51,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833561292] [2021-03-10 15:06:51,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:06:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:06:51,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:06:51,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833561292] [2021-03-10 15:06:51,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:06:51,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-10 15:06:51,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254902122] [2021-03-10 15:06:51,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-10 15:06:51,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:06:51,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-10 15:06:51,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:06:51,823 INFO L87 Difference]: Start difference. First operand 48103 states and 192266 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:06:52,359 INFO L93 Difference]: Finished difference Result 45070 states and 173672 transitions. [2021-03-10 15:06:52,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-10 15:06:52,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-10 15:06:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:06:52,612 INFO L225 Difference]: With dead ends: 45070 [2021-03-10 15:06:52,612 INFO L226 Difference]: Without dead ends: 44710 [2021-03-10 15:06:52,613 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-10 15:06:52,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44710 states. [2021-03-10 15:06:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44710 to 44710. [2021-03-10 15:06:53,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44710 states, 44707 states have (on average 3.854206276422037) internal successors, (172310), 44709 states have internal predecessors, (172310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44710 states to 44710 states and 172310 transitions. [2021-03-10 15:06:53,884 INFO L78 Accepts]: Start accepts. Automaton has 44710 states and 172310 transitions. Word has length 34 [2021-03-10 15:06:53,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:06:53,885 INFO L480 AbstractCegarLoop]: Abstraction has 44710 states and 172310 transitions. [2021-03-10 15:06:53,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:53,885 INFO L276 IsEmpty]: Start isEmpty. Operand 44710 states and 172310 transitions. [2021-03-10 15:06:53,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-03-10 15:06:53,888 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:06:53,888 INFO L519 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] [2021-03-10 15:06:53,889 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 15:06:53,889 INFO L428 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:06:53,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:06:53,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1853638724, now seen corresponding path program 2 times [2021-03-10 15:06:53,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:06:53,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926356836] [2021-03-10 15:06:53,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:06:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:06:53,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:06:53,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926356836] [2021-03-10 15:06:53,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:06:53,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-10 15:06:53,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225505033] [2021-03-10 15:06:53,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-10 15:06:53,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:06:53,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-10 15:06:53,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 15:06:53,980 INFO L87 Difference]: Start difference. First operand 44710 states and 172310 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:54,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:06:54,506 INFO L93 Difference]: Finished difference Result 40480 states and 144348 transitions. [2021-03-10 15:06:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-10 15:06:54,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-03-10 15:06:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:06:54,621 INFO L225 Difference]: With dead ends: 40480 [2021-03-10 15:06:54,621 INFO L226 Difference]: Without dead ends: 38848 [2021-03-10 15:06:54,622 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-10 15:06:54,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38848 states. [2021-03-10 15:06:55,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38848 to 31471. [2021-03-10 15:06:55,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31471 states, 31463 states have (on average 3.6116390681117503) internal successors, (113633), 31470 states have internal predecessors, (113633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:55,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31471 states to 31471 states and 113633 transitions. [2021-03-10 15:06:55,517 INFO L78 Accepts]: Start accepts. Automaton has 31471 states and 113633 transitions. Word has length 34 [2021-03-10 15:06:55,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:06:55,517 INFO L480 AbstractCegarLoop]: Abstraction has 31471 states and 113633 transitions. [2021-03-10 15:06:55,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:55,518 INFO L276 IsEmpty]: Start isEmpty. Operand 31471 states and 113633 transitions. [2021-03-10 15:06:55,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-03-10 15:06:55,522 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:06:55,522 INFO L519 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] [2021-03-10 15:06:55,522 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 15:06:55,523 INFO L428 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:06:55,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:06:55,525 INFO L82 PathProgramCache]: Analyzing trace with hash 948191352, now seen corresponding path program 1 times [2021-03-10 15:06:55,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:06:55,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895851524] [2021-03-10 15:06:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:06:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:06:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:06:55,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895851524] [2021-03-10 15:06:55,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:06:55,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:06:55,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343652239] [2021-03-10 15:06:55,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:06:55,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:06:55,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:06:55,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:06:55,596 INFO L87 Difference]: Start difference. First operand 31471 states and 113633 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:55,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:06:55,879 INFO L93 Difference]: Finished difference Result 42607 states and 150533 transitions. [2021-03-10 15:06:55,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 15:06:55,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2021-03-10 15:06:55,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:06:55,959 INFO L225 Difference]: With dead ends: 42607 [2021-03-10 15:06:55,959 INFO L226 Difference]: Without dead ends: 33616 [2021-03-10 15:06:55,959 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 61.4ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 15:06:56,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33616 states. [2021-03-10 15:06:56,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33616 to 25708. [2021-03-10 15:06:56,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25708 states, 25706 states have (on average 3.5687777172644517) internal successors, (91739), 25707 states have internal predecessors, (91739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25708 states to 25708 states and 91739 transitions. [2021-03-10 15:06:56,876 INFO L78 Accepts]: Start accepts. Automaton has 25708 states and 91739 transitions. Word has length 37 [2021-03-10 15:06:56,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:06:56,877 INFO L480 AbstractCegarLoop]: Abstraction has 25708 states and 91739 transitions. [2021-03-10 15:06:56,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:56,877 INFO L276 IsEmpty]: Start isEmpty. Operand 25708 states and 91739 transitions. [2021-03-10 15:06:56,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 15:06:56,891 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:06:56,891 INFO L519 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] [2021-03-10 15:06:56,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 15:06:56,892 INFO L428 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:06:56,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:06:56,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1376048240, now seen corresponding path program 1 times [2021-03-10 15:06:56,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:06:56,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463642550] [2021-03-10 15:06:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:06:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:06:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:06:56,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463642550] [2021-03-10 15:06:56,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:06:56,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:06:56,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709411547] [2021-03-10 15:06:56,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:06:56,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:06:56,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:06:56,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:06:56,951 INFO L87 Difference]: Start difference. First operand 25708 states and 91739 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:57,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:06:57,214 INFO L93 Difference]: Finished difference Result 32224 states and 112611 transitions. [2021-03-10 15:06:57,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 15:06:57,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-03-10 15:06:57,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:06:57,280 INFO L225 Difference]: With dead ends: 32224 [2021-03-10 15:06:57,280 INFO L226 Difference]: Without dead ends: 29677 [2021-03-10 15:06:57,280 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 51.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 15:06:57,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29677 states. [2021-03-10 15:06:58,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29677 to 22861. [2021-03-10 15:06:58,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22861 states, 22859 states have (on average 3.5557548449188503) internal successors, (81281), 22860 states have internal predecessors, (81281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22861 states to 22861 states and 81281 transitions. [2021-03-10 15:06:58,117 INFO L78 Accepts]: Start accepts. Automaton has 22861 states and 81281 transitions. Word has length 42 [2021-03-10 15:06:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:06:58,118 INFO L480 AbstractCegarLoop]: Abstraction has 22861 states and 81281 transitions. [2021-03-10 15:06:58,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 22861 states and 81281 transitions. [2021-03-10 15:06:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 15:06:58,129 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:06:58,130 INFO L519 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] [2021-03-10 15:06:58,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 15:06:58,130 INFO L428 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:06:58,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:06:58,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1957348044, now seen corresponding path program 1 times [2021-03-10 15:06:58,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:06:58,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893318819] [2021-03-10 15:06:58,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:06:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:06:58,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:06:58,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893318819] [2021-03-10 15:06:58,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:06:58,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:06:58,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917556085] [2021-03-10 15:06:58,181 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:06:58,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:06:58,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:06:58,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:06:58,183 INFO L87 Difference]: Start difference. First operand 22861 states and 81281 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:58,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:06:58,397 INFO L93 Difference]: Finished difference Result 27541 states and 95993 transitions. [2021-03-10 15:06:58,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 15:06:58,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-03-10 15:06:58,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:06:58,441 INFO L225 Difference]: With dead ends: 27541 [2021-03-10 15:06:58,442 INFO L226 Difference]: Without dead ends: 23146 [2021-03-10 15:06:58,442 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 47.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-03-10 15:06:58,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23146 states. [2021-03-10 15:06:59,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23146 to 18106. [2021-03-10 15:06:59,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18106 states, 18104 states have (on average 3.5333627927529827) internal successors, (63968), 18105 states have internal predecessors, (63968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:59,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18106 states to 18106 states and 63968 transitions. [2021-03-10 15:06:59,061 INFO L78 Accepts]: Start accepts. Automaton has 18106 states and 63968 transitions. Word has length 42 [2021-03-10 15:06:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:06:59,062 INFO L480 AbstractCegarLoop]: Abstraction has 18106 states and 63968 transitions. [2021-03-10 15:06:59,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 18106 states and 63968 transitions. [2021-03-10 15:06:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-03-10 15:06:59,078 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:06:59,078 INFO L519 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] [2021-03-10 15:06:59,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 15:06:59,078 INFO L428 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:06:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:06:59,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1674121277, now seen corresponding path program 1 times [2021-03-10 15:06:59,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:06:59,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99154456] [2021-03-10 15:06:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:06:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:06:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:06:59,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99154456] [2021-03-10 15:06:59,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:06:59,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 15:06:59,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422909978] [2021-03-10 15:06:59,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 15:06:59,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:06:59,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 15:06:59,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-10 15:06:59,145 INFO L87 Difference]: Start difference. First operand 18106 states and 63968 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2021-03-10 15:06:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:06:59,231 INFO L93 Difference]: Finished difference Result 21562 states and 75360 transitions. [2021-03-10 15:06:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-10 15:06:59,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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 [2021-03-10 15:06:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:06:59,267 INFO L225 Difference]: With dead ends: 21562 [2021-03-10 15:06:59,267 INFO L226 Difference]: Without dead ends: 18013 [2021-03-10 15:06:59,267 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-10 15:06:59,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18013 states. [2021-03-10 15:06:59,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18013 to 16477. [2021-03-10 15:06:59,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16477 states, 16475 states have (on average 3.536570561456753) internal successors, (58265), 16476 states have internal predecessors, (58265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 15:06:59,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16477 states to 16477 states and 58265 transitions. [2021-03-10 15:06:59,559 INFO L78 Accepts]: Start accepts. Automaton has 16477 states and 58265 transitions. Word has length 49 [2021-03-10 15:06:59,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:06:59,559 INFO L480 AbstractCegarLoop]: Abstraction has 16477 states and 58265 transitions. [2021-03-10 15:06:59,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2021-03-10 15:06:59,559 INFO L276 IsEmpty]: Start isEmpty. Operand 16477 states and 58265 transitions. [2021-03-10 15:06:59,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-03-10 15:06:59,573 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 15:06:59,573 INFO L519 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] [2021-03-10 15:06:59,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 15:06:59,573 INFO L428 AbstractCegarLoop]: === Iteration 8 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-10 15:06:59,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 15:06:59,573 INFO L82 PathProgramCache]: Analyzing trace with hash -2012213737, now seen corresponding path program 2 times [2021-03-10 15:06:59,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 15:06:59,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549263566] [2021-03-10 15:06:59,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 15:06:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 15:06:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 15:06:59,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549263566] [2021-03-10 15:06:59,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 15:06:59,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 15:06:59,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424417379] [2021-03-10 15:06:59,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 15:06:59,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 15:06:59,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 15:06:59,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-10 15:06:59,661 INFO L87 Difference]: Start difference. First operand 16477 states and 58265 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2021-03-10 15:06:59,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 15:06:59,718 INFO L93 Difference]: Finished difference Result 7453 states and 25417 transitions. [2021-03-10 15:06:59,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 15:06:59,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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 [2021-03-10 15:06:59,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 15:06:59,719 INFO L225 Difference]: With dead ends: 7453 [2021-03-10 15:06:59,719 INFO L226 Difference]: Without dead ends: 0 [2021-03-10 15:06:59,720 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-10 15:06:59,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-10 15:06:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-10 15:06:59,720 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) [2021-03-10 15:06:59,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-10 15:06:59,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2021-03-10 15:06:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 15:06:59,720 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-10 15:06:59,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 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) [2021-03-10 15:06:59,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-10 15:06:59,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-10 15:06:59,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 15:06:59,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 03:06:59 BasicIcfg [2021-03-10 15:06:59,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 15:06:59,842 INFO L168 Benchmark]: Toolchain (without parser) took 18009.54 ms. Allocated memory was 255.9 MB in the beginning and 11.3 GB in the end (delta: 11.1 GB). Free memory was 234.6 MB in the beginning and 9.9 GB in the end (delta: -9.7 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.0 GB. [2021-03-10 15:06:59,842 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 15:06:59,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.99 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 234.0 MB in the beginning and 335.7 MB in the end (delta: -101.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-10 15:06:59,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.51 ms. Allocated memory is still 373.3 MB. Free memory was 335.7 MB in the beginning and 333.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 15:06:59,844 INFO L168 Benchmark]: Boogie Preprocessor took 17.83 ms. Allocated memory is still 373.3 MB. Free memory was 333.6 MB in the beginning and 332.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 15:06:59,844 INFO L168 Benchmark]: RCFGBuilder took 505.92 ms. Allocated memory is still 373.3 MB. Free memory was 332.2 MB in the beginning and 302.1 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-10 15:06:59,844 INFO L168 Benchmark]: TraceAbstraction took 17041.71 ms. Allocated memory was 373.3 MB in the beginning and 11.3 GB in the end (delta: 11.0 GB). Free memory was 301.5 MB in the beginning and 9.9 GB in the end (delta: -9.6 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.0 GB. [2021-03-10 15:06:59,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 403.99 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 234.0 MB in the beginning and 335.7 MB in the end (delta: -101.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.51 ms. Allocated memory is still 373.3 MB. Free memory was 335.7 MB in the beginning and 333.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.83 ms. Allocated memory is still 373.3 MB. Free memory was 333.6 MB in the beginning and 332.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 505.92 ms. Allocated memory is still 373.3 MB. Free memory was 332.2 MB in the beginning and 302.1 MB in the end (delta: 30.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 17041.71 ms. Allocated memory was 373.3 MB in the beginning and 11.3 GB in the end (delta: 11.0 GB). Free memory was 301.5 MB in the beginning and 9.9 GB in the end (delta: -9.6 GB). Peak memory consumption was 1.9 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16764.5ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 172.2ms, AutomataDifference: 4938.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3056.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1582 SDtfs, 1669 SDslu, 3400 SDs, 0 SdLazy, 506 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 289.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 266.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=48103occurred in iteration=1, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7761.9ms AutomataMinimizationTime, 8 MinimizatonAttempts, 59592 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.2ms SsaConstructionTime, 109.0ms SatisfiabilityAnalysisTime, 555.4ms InterpolantComputationTime, 318 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 544 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...