/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 20:22:21,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 20:22:21,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 20:22:21,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 20:22:21,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 20:22:21,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 20:22:21,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 20:22:21,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 20:22:21,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 20:22:21,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 20:22:21,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 20:22:21,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 20:22:21,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 20:22:21,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 20:22:21,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 20:22:21,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 20:22:21,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 20:22:21,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 20:22:21,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 20:22:21,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 20:22:21,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 20:22:21,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 20:22:21,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 20:22:21,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 20:22:21,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 20:22:21,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 20:22:21,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 20:22:21,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 20:22:21,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 20:22:21,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 20:22:21,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 20:22:21,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 20:22:21,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 20:22:21,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 20:22:21,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 20:22:21,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 20:22:21,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 20:22:21,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 20:22:21,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 20:22:21,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 20:22:21,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 20:22:21,098 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-SemanticLbe.epf [2020-10-15 20:22:21,121 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 20:22:21,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 20:22:21,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 20:22:21,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 20:22:21,124 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 20:22:21,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 20:22:21,125 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 20:22:21,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 20:22:21,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 20:22:21,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 20:22:21,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 20:22:21,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 20:22:21,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 20:22:21,130 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 20:22:21,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 20:22:21,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 20:22:21,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 20:22:21,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 20:22:21,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 20:22:21,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 20:22:21,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 20:22:21,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 20:22:21,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 20:22:21,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 20:22:21,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 20:22:21,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 20:22:21,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 20:22:21,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 20:22:21,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 20:22:21,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 20:22:21,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 20:22:21,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 20:22:21,489 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 20:22:21,489 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 20:22:21,490 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-10-15 20:22:21,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b73f4d5c9/d5d62d64ffab41f68821ff24394c885f/FLAGb5750b057 [2020-10-15 20:22:22,059 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 20:22:22,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-10-15 20:22:22,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b73f4d5c9/d5d62d64ffab41f68821ff24394c885f/FLAGb5750b057 [2020-10-15 20:22:22,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b73f4d5c9/d5d62d64ffab41f68821ff24394c885f [2020-10-15 20:22:22,381 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 20:22:22,384 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 20:22:22,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 20:22:22,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 20:22:22,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 20:22:22,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:22:22" (1/1) ... [2020-10-15 20:22:22,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2921e9e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:22, skipping insertion in model container [2020-10-15 20:22:22,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:22:22" (1/1) ... [2020-10-15 20:22:22,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 20:22:22,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 20:22:22,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 20:22:22,988 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 20:22:23,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 20:22:23,155 INFO L208 MainTranslator]: Completed translation [2020-10-15 20:22:23,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23 WrapperNode [2020-10-15 20:22:23,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 20:22:23,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 20:22:23,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 20:22:23,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 20:22:23,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (1/1) ... [2020-10-15 20:22:23,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (1/1) ... [2020-10-15 20:22:23,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 20:22:23,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 20:22:23,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 20:22:23,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 20:22:23,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (1/1) ... [2020-10-15 20:22:23,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (1/1) ... [2020-10-15 20:22:23,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (1/1) ... [2020-10-15 20:22:23,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (1/1) ... [2020-10-15 20:22:23,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (1/1) ... [2020-10-15 20:22:23,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (1/1) ... [2020-10-15 20:22:23,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (1/1) ... [2020-10-15 20:22:23,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 20:22:23,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 20:22:23,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 20:22:23,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 20:22:23,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (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 [2020-10-15 20:22:23,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 20:22:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 20:22:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-10-15 20:22:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-10-15 20:22:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 20:22:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 20:22:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 20:22:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 20:22:23,334 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-10-15 20:22:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-10-15 20:22:23,336 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 20:22:23,786 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 20:22:23,786 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-15 20:22:23,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:22:23 BoogieIcfgContainer [2020-10-15 20:22:23,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 20:22:23,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 20:22:23,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 20:22:23,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 20:22:23,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:22:22" (1/3) ... [2020-10-15 20:22:23,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404be192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:22:23, skipping insertion in model container [2020-10-15 20:22:23,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:22:23" (2/3) ... [2020-10-15 20:22:23,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404be192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:22:23, skipping insertion in model container [2020-10-15 20:22:23,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:22:23" (3/3) ... [2020-10-15 20:22:23,797 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2020-10-15 20:22:23,814 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 20:22:23,814 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 20:22:23,822 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 20:22:23,823 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 20:22:23,851 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,852 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,852 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,853 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,853 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,853 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,853 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,854 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,854 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,855 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,855 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,859 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,860 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,860 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,861 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,861 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,861 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,861 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,862 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,863 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,864 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,864 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,864 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,864 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,865 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,865 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,865 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,865 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,866 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,869 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,869 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,870 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,870 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,870 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,870 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,871 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,877 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,877 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,878 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,878 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,878 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,878 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,884 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,888 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,889 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,889 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,889 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,889 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,889 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,899 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,899 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,899 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,900 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,900 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,900 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,902 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,903 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,903 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,903 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,903 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,904 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,904 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:22:23,957 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-15 20:22:23,978 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:22:23,978 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:22:23,978 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:22:23,979 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:22:23,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:22:23,979 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:22:23,980 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:22:23,980 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:22:24,004 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:22:24,006 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 100 transitions, 268 flow [2020-10-15 20:22:24,008 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 100 transitions, 268 flow [2020-10-15 20:22:24,010 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 100 transitions, 268 flow [2020-10-15 20:22:24,076 INFO L129 PetriNetUnfolder]: 19/134 cut-off events. [2020-10-15 20:22:24,076 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-10-15 20:22:24,084 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 134 events. 19/134 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 333 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 91. Up to 12 conditions per place. [2020-10-15 20:22:24,089 INFO L117 LiptonReduction]: Number of co-enabled transitions 2448 [2020-10-15 20:22:25,556 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-10-15 20:22:25,759 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-15 20:22:25,868 INFO L132 LiptonReduction]: Checked pairs total: 13364 [2020-10-15 20:22:25,868 INFO L134 LiptonReduction]: Total number of compositions: 47 [2020-10-15 20:22:25,875 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 55 transitions, 178 flow [2020-10-15 20:22:26,200 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2020-10-15 20:22:26,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2020-10-15 20:22:26,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 20:22:26,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:22:26,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:22:26,212 INFO L429 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:22:26,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:22:26,219 INFO L82 PathProgramCache]: Analyzing trace with hash -808852904, now seen corresponding path program 1 times [2020-10-15 20:22:26,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:22:26,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146674006] [2020-10-15 20:22:26,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:22:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:22:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:22:26,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146674006] [2020-10-15 20:22:26,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:22:26,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:22:26,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371056165] [2020-10-15 20:22:26,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:22:26,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:22:26,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:22:26,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:22:26,501 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2020-10-15 20:22:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:22:26,774 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2020-10-15 20:22:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:22:26,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-15 20:22:26,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:22:26,858 INFO L225 Difference]: With dead ends: 9727 [2020-10-15 20:22:26,858 INFO L226 Difference]: Without dead ends: 7325 [2020-10-15 20:22:26,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:22:26,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2020-10-15 20:22:27,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2020-10-15 20:22:27,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2020-10-15 20:22:27,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2020-10-15 20:22:27,202 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2020-10-15 20:22:27,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:22:27,202 INFO L481 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2020-10-15 20:22:27,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:22:27,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2020-10-15 20:22:27,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 20:22:27,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:22:27,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:22:27,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 20:22:27,205 INFO L429 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:22:27,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:22:27,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1818149286, now seen corresponding path program 1 times [2020-10-15 20:22:27,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:22:27,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268809491] [2020-10-15 20:22:27,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:22:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:22:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:22:27,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268809491] [2020-10-15 20:22:27,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:22:27,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:22:27,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119872244] [2020-10-15 20:22:27,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 20:22:27,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:22:27,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 20:22:27,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:22:27,262 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 3 states. [2020-10-15 20:22:27,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:22:27,320 INFO L93 Difference]: Finished difference Result 3739 states and 11101 transitions. [2020-10-15 20:22:27,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 20:22:27,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 20:22:27,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:22:27,351 INFO L225 Difference]: With dead ends: 3739 [2020-10-15 20:22:27,351 INFO L226 Difference]: Without dead ends: 3707 [2020-10-15 20:22:27,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:22:27,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2020-10-15 20:22:27,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3707. [2020-10-15 20:22:27,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3707 states. [2020-10-15 20:22:27,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 11019 transitions. [2020-10-15 20:22:27,480 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 11019 transitions. Word has length 10 [2020-10-15 20:22:27,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:22:27,481 INFO L481 AbstractCegarLoop]: Abstraction has 3707 states and 11019 transitions. [2020-10-15 20:22:27,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 20:22:27,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 11019 transitions. [2020-10-15 20:22:27,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 20:22:27,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:22:27,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:22:27,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 20:22:27,484 INFO L429 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:22:27,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:22:27,484 INFO L82 PathProgramCache]: Analyzing trace with hash 154302258, now seen corresponding path program 2 times [2020-10-15 20:22:27,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:22:27,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823374473] [2020-10-15 20:22:27,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:22:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:22:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:22:27,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823374473] [2020-10-15 20:22:27,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:22:27,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:22:27,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150273268] [2020-10-15 20:22:27,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:22:27,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:22:27,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:22:27,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:22:27,534 INFO L87 Difference]: Start difference. First operand 3707 states and 11019 transitions. Second operand 4 states. [2020-10-15 20:22:27,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:22:27,578 INFO L93 Difference]: Finished difference Result 2696 states and 6489 transitions. [2020-10-15 20:22:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:22:27,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 20:22:27,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:22:27,593 INFO L225 Difference]: With dead ends: 2696 [2020-10-15 20:22:27,593 INFO L226 Difference]: Without dead ends: 2588 [2020-10-15 20:22:27,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:22:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2020-10-15 20:22:27,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2180. [2020-10-15 20:22:27,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2020-10-15 20:22:27,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 5394 transitions. [2020-10-15 20:22:27,657 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 5394 transitions. Word has length 10 [2020-10-15 20:22:27,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:22:27,658 INFO L481 AbstractCegarLoop]: Abstraction has 2180 states and 5394 transitions. [2020-10-15 20:22:27,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:22:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 5394 transitions. [2020-10-15 20:22:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 20:22:27,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:22:27,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:22:27,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 20:22:27,660 INFO L429 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:22:27,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:22:27,660 INFO L82 PathProgramCache]: Analyzing trace with hash 574663959, now seen corresponding path program 1 times [2020-10-15 20:22:27,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:22:27,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946303648] [2020-10-15 20:22:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:22:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:22:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:22:27,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946303648] [2020-10-15 20:22:27,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:22:27,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:22:27,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745653518] [2020-10-15 20:22:27,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:22:27,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:22:27,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:22:27,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:22:27,700 INFO L87 Difference]: Start difference. First operand 2180 states and 5394 transitions. Second operand 4 states. [2020-10-15 20:22:27,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:22:27,756 INFO L93 Difference]: Finished difference Result 2507 states and 6115 transitions. [2020-10-15 20:22:27,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:22:27,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 20:22:27,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:22:27,768 INFO L225 Difference]: With dead ends: 2507 [2020-10-15 20:22:27,768 INFO L226 Difference]: Without dead ends: 1814 [2020-10-15 20:22:27,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:22:27,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2020-10-15 20:22:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1440. [2020-10-15 20:22:27,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2020-10-15 20:22:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 3564 transitions. [2020-10-15 20:22:27,807 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 3564 transitions. Word has length 12 [2020-10-15 20:22:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:22:27,808 INFO L481 AbstractCegarLoop]: Abstraction has 1440 states and 3564 transitions. [2020-10-15 20:22:27,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:22:27,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 3564 transitions. [2020-10-15 20:22:27,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 20:22:27,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:22:27,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:22:27,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 20:22:27,812 INFO L429 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:22:27,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:22:27,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1296450119, now seen corresponding path program 1 times [2020-10-15 20:22:27,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:22:27,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633109594] [2020-10-15 20:22:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:22:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:22:27,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:22:27,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633109594] [2020-10-15 20:22:27,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:22:27,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 20:22:27,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057292126] [2020-10-15 20:22:27,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:22:27,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:22:27,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:22:27,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:22:27,872 INFO L87 Difference]: Start difference. First operand 1440 states and 3564 transitions. Second operand 5 states. [2020-10-15 20:22:27,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:22:27,922 INFO L93 Difference]: Finished difference Result 1734 states and 4180 transitions. [2020-10-15 20:22:27,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:22:27,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-15 20:22:27,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:22:27,929 INFO L225 Difference]: With dead ends: 1734 [2020-10-15 20:22:27,929 INFO L226 Difference]: Without dead ends: 1508 [2020-10-15 20:22:27,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:22:27,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2020-10-15 20:22:27,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1376. [2020-10-15 20:22:27,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-15 20:22:27,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2020-10-15 20:22:27,973 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 19 [2020-10-15 20:22:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:22:27,974 INFO L481 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2020-10-15 20:22:27,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:22:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2020-10-15 20:22:27,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 20:22:27,976 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:22:27,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:22:27,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 20:22:27,977 INFO L429 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:22:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:22:27,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1280173471, now seen corresponding path program 2 times [2020-10-15 20:22:27,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:22:27,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113045695] [2020-10-15 20:22:27,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:22:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:22:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:22:28,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113045695] [2020-10-15 20:22:28,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:22:28,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 20:22:28,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483969713] [2020-10-15 20:22:28,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:22:28,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:22:28,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:22:28,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:22:28,062 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2020-10-15 20:22:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:22:28,091 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2020-10-15 20:22:28,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:22:28,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-15 20:22:28,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:22:28,092 INFO L225 Difference]: With dead ends: 530 [2020-10-15 20:22:28,092 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 20:22:28,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:22:28,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 20:22:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 20:22:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 20:22:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 20:22:28,093 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-15 20:22:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:22:28,094 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 20:22:28,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:22:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 20:22:28,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 20:22:28,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 20:22:28,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:22:28 BasicIcfg [2020-10-15 20:22:28,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 20:22:28,101 INFO L168 Benchmark]: Toolchain (without parser) took 5717.30 ms. Allocated memory was 252.7 MB in the beginning and 429.9 MB in the end (delta: 177.2 MB). Free memory was 208.2 MB in the beginning and 370.8 MB in the end (delta: -162.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.2 GB. [2020-10-15 20:22:28,101 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 20:22:28,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.82 ms. Allocated memory was 252.7 MB in the beginning and 317.2 MB in the end (delta: 64.5 MB). Free memory was 208.2 MB in the beginning and 272.9 MB in the end (delta: -64.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-15 20:22:28,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.82 ms. Allocated memory is still 317.2 MB. Free memory was 272.9 MB in the beginning and 270.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 20:22:28,104 INFO L168 Benchmark]: Boogie Preprocessor took 28.58 ms. Allocated memory is still 317.2 MB. Free memory was 270.4 MB in the beginning and 267.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 20:22:28,105 INFO L168 Benchmark]: RCFGBuilder took 522.25 ms. Allocated memory is still 317.2 MB. Free memory was 267.8 MB in the beginning and 238.2 MB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 14.2 GB. [2020-10-15 20:22:28,106 INFO L168 Benchmark]: TraceAbstraction took 4308.79 ms. Allocated memory was 317.2 MB in the beginning and 429.9 MB in the end (delta: 112.7 MB). Free memory was 235.6 MB in the beginning and 370.8 MB in the end (delta: -135.1 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 20:22:28,110 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 772.82 ms. Allocated memory was 252.7 MB in the beginning and 317.2 MB in the end (delta: 64.5 MB). Free memory was 208.2 MB in the beginning and 272.9 MB in the end (delta: -64.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 78.82 ms. Allocated memory is still 317.2 MB. Free memory was 272.9 MB in the beginning and 270.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.58 ms. Allocated memory is still 317.2 MB. Free memory was 270.4 MB in the beginning and 267.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 522.25 ms. Allocated memory is still 317.2 MB. Free memory was 267.8 MB in the beginning and 238.2 MB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4308.79 ms. Allocated memory was 317.2 MB in the beginning and 429.9 MB in the end (delta: 112.7 MB). Free memory was 235.6 MB in the beginning and 370.8 MB in the end (delta: -135.1 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1748 VarBasedMoverChecksPositive, 64 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 52 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 637 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 99 PlacesBefore, 56 PlacesAfterwards, 100 TransitionsBefore, 55 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 47 TotalNumberOfCompositions, 13364 MoverChecksTotal - PositiveResult [Line: 700]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 436 SDtfs, 433 SDslu, 501 SDs, 0 SdLazy, 137 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4376occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 3863 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 2186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...