/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 06:21:32,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 06:21:32,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 06:21:33,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 06:21:33,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 06:21:33,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 06:21:33,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 06:21:33,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 06:21:33,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 06:21:33,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 06:21:33,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 06:21:33,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 06:21:33,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 06:21:33,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 06:21:33,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 06:21:33,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 06:21:33,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 06:21:33,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 06:21:33,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 06:21:33,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 06:21:33,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 06:21:33,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 06:21:33,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 06:21:33,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 06:21:33,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 06:21:33,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 06:21:33,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 06:21:33,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 06:21:33,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 06:21:33,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 06:21:33,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 06:21:33,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 06:21:33,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 06:21:33,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 06:21:33,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 06:21:33,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 06:21:33,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 06:21:33,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 06:21:33,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 06:21:33,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 06:21:33,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 06:21:33,101 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-Delay.epf [2020-11-12 06:21:33,129 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 06:21:33,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 06:21:33,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 06:21:33,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 06:21:33,131 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 06:21:33,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 06:21:33,132 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 06:21:33,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 06:21:33,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 06:21:33,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 06:21:33,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 06:21:33,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 06:21:33,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 06:21:33,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 06:21:33,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 06:21:33,134 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 06:21:33,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 06:21:33,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 06:21:33,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 06:21:33,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 06:21:33,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 06:21:33,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 06:21:33,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 06:21:33,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 06:21:33,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 06:21:33,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 06:21:33,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 06:21:33,137 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 06:21:33,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 06:21:33,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 06:21:33,137 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=DELAY_SET 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 06:21:33,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 06:21:33,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 06:21:33,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 06:21:33,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 06:21:33,557 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 06:21:33,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2020-11-12 06:21:33,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6386a434f/2f2e4ad4bfbb433ba8d8f5296e7f7ede/FLAGadf85af2b [2020-11-12 06:21:34,438 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 06:21:34,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2020-11-12 06:21:34,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6386a434f/2f2e4ad4bfbb433ba8d8f5296e7f7ede/FLAGadf85af2b [2020-11-12 06:21:34,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6386a434f/2f2e4ad4bfbb433ba8d8f5296e7f7ede [2020-11-12 06:21:34,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 06:21:34,651 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 06:21:34,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 06:21:34,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 06:21:34,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 06:21:34,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:21:34" (1/1) ... [2020-11-12 06:21:34,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255d2455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:34, skipping insertion in model container [2020-11-12 06:21:34,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:21:34" (1/1) ... [2020-11-12 06:21:34,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 06:21:34,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 06:21:35,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:21:35,108 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 06:21:35,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 06:21:35,311 INFO L208 MainTranslator]: Completed translation [2020-11-12 06:21:35,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35 WrapperNode [2020-11-12 06:21:35,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 06:21:35,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 06:21:35,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 06:21:35,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 06:21:35,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (1/1) ... [2020-11-12 06:21:35,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (1/1) ... [2020-11-12 06:21:35,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 06:21:35,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 06:21:35,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 06:21:35,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 06:21:35,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (1/1) ... [2020-11-12 06:21:35,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (1/1) ... [2020-11-12 06:21:35,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (1/1) ... [2020-11-12 06:21:35,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (1/1) ... [2020-11-12 06:21:35,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (1/1) ... [2020-11-12 06:21:35,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (1/1) ... [2020-11-12 06:21:35,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (1/1) ... [2020-11-12 06:21:35,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 06:21:35,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 06:21:35,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 06:21:35,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 06:21:35,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (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 [2020-11-12 06:21:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 06:21:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 06:21:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 06:21:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 06:21:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-12 06:21:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-12 06:21:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-12 06:21:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-12 06:21:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-12 06:21:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-12 06:21:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 06:21:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 06:21:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 06:21:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 06:21:35,499 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 06:21:36,182 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 06:21:36,183 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-12 06:21:36,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:21:36 BoogieIcfgContainer [2020-11-12 06:21:36,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 06:21:36,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 06:21:36,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 06:21:36,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 06:21:36,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:21:34" (1/3) ... [2020-11-12 06:21:36,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a9f43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:21:36, skipping insertion in model container [2020-11-12 06:21:36,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:21:35" (2/3) ... [2020-11-12 06:21:36,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a9f43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:21:36, skipping insertion in model container [2020-11-12 06:21:36,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:21:36" (3/3) ... [2020-11-12 06:21:36,200 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt.i [2020-11-12 06:21:36,217 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 06:21:36,218 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 06:21:36,222 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 06:21:36,223 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 06:21:36,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,275 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,275 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,276 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,276 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,278 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,279 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,279 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,279 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,283 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,284 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,284 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,284 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,286 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,314 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,314 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 06:21:36,321 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 06:21:36,341 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-12 06:21:36,381 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 06:21:36,382 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 06:21:36,382 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 06:21:36,382 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 06:21:36,382 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 06:21:36,382 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 06:21:36,383 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 06:21:36,383 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 06:21:36,400 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2020-11-12 06:21:37,270 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-11-12 06:21:37,955 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 682ms [2020-11-12 06:21:37,995 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2020-11-12 06:21:38,092 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 9848 states, 9112 states have (on average 1.3931079894644425) internal successors, (12694), 9847 states have internal predecessors, (12694), 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) [2020-11-12 06:21:38,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9112 states have (on average 1.3931079894644425) internal successors, (12694), 9847 states have internal predecessors, (12694), 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) [2020-11-12 06:21:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-12 06:21:38,136 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:21:38,137 INFO L494 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] [2020-11-12 06:21:38,137 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:21:38,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:21:38,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1953454049, now seen corresponding path program 1 times [2020-11-12 06:21:38,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:21:38,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076911303] [2020-11-12 06:21:38,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:21:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:21:38,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:21:38,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076911303] [2020-11-12 06:21:38,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:21:38,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:21:38,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492034639] [2020-11-12 06:21:38,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:21:38,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:21:38,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:21:38,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:21:38,631 INFO L87 Difference]: Start difference. First operand has 9848 states, 9112 states have (on average 1.3931079894644425) internal successors, (12694), 9847 states have internal predecessors, (12694), 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 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) [2020-11-12 06:21:38,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:21:38,981 INFO L93 Difference]: Finished difference Result 11318 states and 13366 transitions. [2020-11-12 06:21:38,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:21:38,984 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 [2020-11-12 06:21:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:21:39,019 INFO L225 Difference]: With dead ends: 11318 [2020-11-12 06:21:39,019 INFO L226 Difference]: Without dead ends: 3050 [2020-11-12 06:21:39,021 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:21:39,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2020-11-12 06:21:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 3050. [2020-11-12 06:21:39,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3050 states, 2854 states have (on average 1.4716187806587246) internal successors, (4200), 3049 states have internal predecessors, (4200), 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) [2020-11-12 06:21:39,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 4200 transitions. [2020-11-12 06:21:39,303 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 4200 transitions. Word has length 42 [2020-11-12 06:21:39,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:21:39,304 INFO L481 AbstractCegarLoop]: Abstraction has 3050 states and 4200 transitions. [2020-11-12 06:21:39,306 INFO L482 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) [2020-11-12 06:21:39,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 4200 transitions. [2020-11-12 06:21:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-12 06:21:39,320 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:21:39,320 INFO L494 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] [2020-11-12 06:21:39,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 06:21:39,329 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:21:39,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:21:39,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1558378250, now seen corresponding path program 1 times [2020-11-12 06:21:39,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:21:39,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613317720] [2020-11-12 06:21:39,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:21:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:21:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:21:39,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613317720] [2020-11-12 06:21:39,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:21:39,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:21:39,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135770420] [2020-11-12 06:21:39,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:21:39,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:21:39,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:21:39,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:21:39,634 INFO L87 Difference]: Start difference. First operand 3050 states and 4200 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-12 06:21:39,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:21:39,874 INFO L93 Difference]: Finished difference Result 4931 states and 7132 transitions. [2020-11-12 06:21:39,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:21:39,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2020-11-12 06:21:39,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:21:39,887 INFO L225 Difference]: With dead ends: 4931 [2020-11-12 06:21:39,887 INFO L226 Difference]: Without dead ends: 2205 [2020-11-12 06:21:39,888 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:21:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2020-11-12 06:21:39,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205. [2020-11-12 06:21:39,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 2065 states have (on average 1.497820823244552) internal successors, (3093), 2204 states have internal predecessors, (3093), 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) [2020-11-12 06:21:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3093 transitions. [2020-11-12 06:21:39,949 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3093 transitions. Word has length 45 [2020-11-12 06:21:39,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:21:39,949 INFO L481 AbstractCegarLoop]: Abstraction has 2205 states and 3093 transitions. [2020-11-12 06:21:39,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2020-11-12 06:21:39,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3093 transitions. [2020-11-12 06:21:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-12 06:21:39,956 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:21:39,956 INFO L494 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] [2020-11-12 06:21:39,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 06:21:39,957 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:21:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:21:39,958 INFO L82 PathProgramCache]: Analyzing trace with hash -435846089, now seen corresponding path program 1 times [2020-11-12 06:21:39,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:21:39,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023289377] [2020-11-12 06:21:39,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:21:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:21:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:21:40,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023289377] [2020-11-12 06:21:40,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:21:40,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:21:40,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989939676] [2020-11-12 06:21:40,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:21:40,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:21:40,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:21:40,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:21:40,147 INFO L87 Difference]: Start difference. First operand 2205 states and 3093 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:21:40,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:21:40,351 INFO L93 Difference]: Finished difference Result 2445 states and 3468 transitions. [2020-11-12 06:21:40,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:21:40,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2020-11-12 06:21:40,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:21:40,361 INFO L225 Difference]: With dead ends: 2445 [2020-11-12 06:21:40,361 INFO L226 Difference]: Without dead ends: 1685 [2020-11-12 06:21:40,362 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:21:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2020-11-12 06:21:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2020-11-12 06:21:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1585 states have (on average 1.5034700315457412) internal successors, (2383), 1684 states have internal predecessors, (2383), 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) [2020-11-12 06:21:40,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2383 transitions. [2020-11-12 06:21:40,411 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2383 transitions. Word has length 47 [2020-11-12 06:21:40,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:21:40,413 INFO L481 AbstractCegarLoop]: Abstraction has 1685 states and 2383 transitions. [2020-11-12 06:21:40,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 06:21:40,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2383 transitions. [2020-11-12 06:21:40,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-12 06:21:40,419 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:21:40,420 INFO L494 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] [2020-11-12 06:21:40,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 06:21:40,420 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:21:40,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:21:40,421 INFO L82 PathProgramCache]: Analyzing trace with hash 3432726, now seen corresponding path program 1 times [2020-11-12 06:21:40,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:21:40,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036185783] [2020-11-12 06:21:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:21:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:21:40,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:21:40,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036185783] [2020-11-12 06:21:40,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:21:40,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:21:40,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755727903] [2020-11-12 06:21:40,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:21:40,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:21:40,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:21:40,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:21:40,675 INFO L87 Difference]: Start difference. First operand 1685 states and 2383 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2020-11-12 06:21:40,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:21:40,983 INFO L93 Difference]: Finished difference Result 2413 states and 3657 transitions. [2020-11-12 06:21:40,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:21:40,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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 [2020-11-12 06:21:40,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:21:40,992 INFO L225 Difference]: With dead ends: 2413 [2020-11-12 06:21:40,992 INFO L226 Difference]: Without dead ends: 1321 [2020-11-12 06:21:40,993 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-11-12 06:21:41,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2020-11-12 06:21:41,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1321. [2020-11-12 06:21:41,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1241 states have (on average 1.5229653505237712) internal successors, (1890), 1320 states have internal predecessors, (1890), 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) [2020-11-12 06:21:41,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1890 transitions. [2020-11-12 06:21:41,034 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1890 transitions. Word has length 49 [2020-11-12 06:21:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:21:41,035 INFO L481 AbstractCegarLoop]: Abstraction has 1321 states and 1890 transitions. [2020-11-12 06:21:41,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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) [2020-11-12 06:21:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1890 transitions. [2020-11-12 06:21:41,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-12 06:21:41,039 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:21:41,039 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:21:41,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 06:21:41,040 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:21:41,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:21:41,041 INFO L82 PathProgramCache]: Analyzing trace with hash -876626942, now seen corresponding path program 1 times [2020-11-12 06:21:41,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:21:41,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043483113] [2020-11-12 06:21:41,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:21:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:21:41,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:21:41,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043483113] [2020-11-12 06:21:41,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:21:41,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 06:21:41,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68706893] [2020-11-12 06:21:41,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 06:21:41,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:21:41,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 06:21:41,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-12 06:21:41,293 INFO L87 Difference]: Start difference. First operand 1321 states and 1890 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2020-11-12 06:21:41,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:21:41,513 INFO L93 Difference]: Finished difference Result 1615 states and 2426 transitions. [2020-11-12 06:21:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-12 06:21:41,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2020-11-12 06:21:41,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:21:41,521 INFO L225 Difference]: With dead ends: 1615 [2020-11-12 06:21:41,522 INFO L226 Difference]: Without dead ends: 1295 [2020-11-12 06:21:41,522 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:21:41,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2020-11-12 06:21:41,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1295. [2020-11-12 06:21:41,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 1217 states have (on average 1.5184880854560394) internal successors, (1848), 1294 states have internal predecessors, (1848), 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) [2020-11-12 06:21:41,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1848 transitions. [2020-11-12 06:21:41,561 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1848 transitions. Word has length 50 [2020-11-12 06:21:41,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:21:41,564 INFO L481 AbstractCegarLoop]: Abstraction has 1295 states and 1848 transitions. [2020-11-12 06:21:41,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 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) [2020-11-12 06:21:41,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1848 transitions. [2020-11-12 06:21:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-12 06:21:41,569 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:21:41,569 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:21:41,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-12 06:21:41,570 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:21:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:21:41,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1313077241, now seen corresponding path program 1 times [2020-11-12 06:21:41,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:21:41,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562700090] [2020-11-12 06:21:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:21:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:21:41,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:21:41,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562700090] [2020-11-12 06:21:41,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:21:41,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:21:41,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548986627] [2020-11-12 06:21:41,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:21:41,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:21:41,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:21:41,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:21:41,760 INFO L87 Difference]: Start difference. First operand 1295 states and 1848 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2020-11-12 06:21:41,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:21:41,945 INFO L93 Difference]: Finished difference Result 1412 states and 2120 transitions. [2020-11-12 06:21:41,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-12 06:21:41,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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 51 [2020-11-12 06:21:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:21:41,951 INFO L225 Difference]: With dead ends: 1412 [2020-11-12 06:21:41,952 INFO L226 Difference]: Without dead ends: 1097 [2020-11-12 06:21:41,952 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-12 06:21:41,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2020-11-12 06:21:42,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2020-11-12 06:21:42,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1034 states have (on average 1.4912959381044488) internal successors, (1542), 1096 states have internal predecessors, (1542), 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) [2020-11-12 06:21:42,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1542 transitions. [2020-11-12 06:21:42,006 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1542 transitions. Word has length 51 [2020-11-12 06:21:42,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:21:42,006 INFO L481 AbstractCegarLoop]: Abstraction has 1097 states and 1542 transitions. [2020-11-12 06:21:42,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2020-11-12 06:21:42,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1542 transitions. [2020-11-12 06:21:42,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-12 06:21:42,009 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:21:42,009 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:21:42,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-12 06:21:42,010 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:21:42,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:21:42,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1278998272, now seen corresponding path program 1 times [2020-11-12 06:21:42,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:21:42,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106996998] [2020-11-12 06:21:42,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:21:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:21:42,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:21:42,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106996998] [2020-11-12 06:21:42,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:21:42,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-12 06:21:42,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595601788] [2020-11-12 06:21:42,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-12 06:21:42,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:21:42,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-12 06:21:42,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-12 06:21:42,154 INFO L87 Difference]: Start difference. First operand 1097 states and 1542 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2020-11-12 06:21:42,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:21:42,370 INFO L93 Difference]: Finished difference Result 881 states and 1323 transitions. [2020-11-12 06:21:42,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-12 06:21:42,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2020-11-12 06:21:42,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:21:42,374 INFO L225 Difference]: With dead ends: 881 [2020-11-12 06:21:42,374 INFO L226 Difference]: Without dead ends: 611 [2020-11-12 06:21:42,375 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-12 06:21:42,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-11-12 06:21:42,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2020-11-12 06:21:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 584 states have (on average 1.4075342465753424) internal successors, (822), 610 states have internal predecessors, (822), 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) [2020-11-12 06:21:42,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 822 transitions. [2020-11-12 06:21:42,391 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 822 transitions. Word has length 52 [2020-11-12 06:21:42,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:21:42,391 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 822 transitions. [2020-11-12 06:21:42,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2020-11-12 06:21:42,392 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 822 transitions. [2020-11-12 06:21:42,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-12 06:21:42,393 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 06:21:42,393 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 06:21:42,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-12 06:21:42,394 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 06:21:42,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 06:21:42,394 INFO L82 PathProgramCache]: Analyzing trace with hash 705408351, now seen corresponding path program 1 times [2020-11-12 06:21:42,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 06:21:42,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284243683] [2020-11-12 06:21:42,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 06:21:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 06:21:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 06:21:42,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284243683] [2020-11-12 06:21:42,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 06:21:42,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-12 06:21:42,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829637304] [2020-11-12 06:21:42,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-12 06:21:42,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 06:21:42,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-12 06:21:42,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-12 06:21:42,554 INFO L87 Difference]: Start difference. First operand 611 states and 822 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2020-11-12 06:21:42,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 06:21:42,660 INFO L93 Difference]: Finished difference Result 503 states and 714 transitions. [2020-11-12 06:21:42,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-12 06:21:42,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 54 [2020-11-12 06:21:42,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 06:21:42,661 INFO L225 Difference]: With dead ends: 503 [2020-11-12 06:21:42,661 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 06:21:42,661 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-12 06:21:42,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 06:21:42,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 06:21:42,662 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) [2020-11-12 06:21:42,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 06:21:42,662 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-12 06:21:42,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 06:21:42,662 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 06:21:42,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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) [2020-11-12 06:21:42,663 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 06:21:42,663 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 06:21:42,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-12 06:21:42,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:21:42 BasicIcfg [2020-11-12 06:21:42,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 06:21:42,671 INFO L168 Benchmark]: Toolchain (without parser) took 8023.76 ms. Allocated memory was 320.9 MB in the beginning and 606.1 MB in the end (delta: 285.2 MB). Free memory was 296.5 MB in the beginning and 459.8 MB in the end (delta: -163.3 MB). Peak memory consumption was 126.2 MB. Max. memory is 16.0 GB. [2020-11-12 06:21:42,672 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 320.9 MB. Free memory is still 291.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 06:21:42,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.61 ms. Allocated memory is still 320.9 MB. Free memory was 295.9 MB in the beginning and 265.1 MB in the end (delta: 30.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:21:42,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.25 ms. Allocated memory is still 320.9 MB. Free memory was 265.1 MB in the beginning and 263.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:21:42,674 INFO L168 Benchmark]: Boogie Preprocessor took 29.51 ms. Allocated memory is still 320.9 MB. Free memory was 263.0 MB in the beginning and 261.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 06:21:42,675 INFO L168 Benchmark]: RCFGBuilder took 786.81 ms. Allocated memory is still 320.9 MB. Free memory was 261.8 MB in the beginning and 285.2 MB in the end (delta: -23.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2020-11-12 06:21:42,676 INFO L168 Benchmark]: TraceAbstraction took 6476.69 ms. Allocated memory was 320.9 MB in the beginning and 606.1 MB in the end (delta: 285.2 MB). Free memory was 284.2 MB in the beginning and 459.8 MB in the end (delta: -175.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 16.0 GB. [2020-11-12 06:21:42,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 320.9 MB. Free memory is still 291.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 660.61 ms. Allocated memory is still 320.9 MB. Free memory was 295.9 MB in the beginning and 265.1 MB in the end (delta: 30.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.25 ms. Allocated memory is still 320.9 MB. Free memory was 265.1 MB in the beginning and 263.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.51 ms. Allocated memory is still 320.9 MB. Free memory was 263.0 MB in the beginning and 261.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 786.81 ms. Allocated memory is still 320.9 MB. Free memory was 261.8 MB in the beginning and 285.2 MB in the end (delta: -23.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6476.69 ms. Allocated memory was 320.9 MB in the beginning and 606.1 MB in the end (delta: 285.2 MB). Free memory was 284.2 MB in the beginning and 459.8 MB in the end (delta: -175.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 553 SDtfs, 693 SDslu, 2077 SDs, 0 SdLazy, 265 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 390 NumberOfCodeBlocks, 390 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 382 ConstructedInterpolants, 0 QuantifiedInterpolants, 49978 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...