/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:38:58,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:38:58,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:38:58,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:38:58,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:38:58,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:38:58,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:38:58,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:38:58,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:38:58,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:38:58,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:38:58,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:38:58,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:38:58,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:38:58,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:38:58,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:38:58,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:38:58,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:38:58,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:38:58,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:38:58,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:38:58,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:38:58,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:38:58,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:38:58,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:38:58,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:38:58,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:38:58,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:38:58,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:38:58,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:38:58,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:38:58,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:38:58,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:38:58,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:38:58,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:38:58,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:38:58,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:38:58,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:38:58,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:38:58,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:38:58,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:38:58,223 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 22:38:58,260 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:38:58,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:38:58,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:38:58,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:38:58,262 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:38:58,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:38:58,263 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:38:58,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:38:58,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:38:58,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:38:58,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:38:58,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:38:58,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:38:58,266 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:38:58,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:38:58,266 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:38:58,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:38:58,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:38:58,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:38:58,267 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:38:58,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:38:58,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:38:58,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:38:58,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 22:38:58,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:38:58,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:38:58,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:38:58,269 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 22:38:58,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:38:58,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:38:58,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:38:58,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:38:58,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:38:58,575 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:38:58,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2020-10-21 22:38:58,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1079af8a/a410222991824e4287f7563b7a8aee53/FLAG13a514ead [2020-10-21 22:38:59,206 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:38:59,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2020-10-21 22:38:59,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1079af8a/a410222991824e4287f7563b7a8aee53/FLAG13a514ead [2020-10-21 22:38:59,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1079af8a/a410222991824e4287f7563b7a8aee53 [2020-10-21 22:38:59,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:38:59,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:38:59,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:38:59,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:38:59,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:38:59,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:38:59" (1/1) ... [2020-10-21 22:38:59,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a47a307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:38:59, skipping insertion in model container [2020-10-21 22:38:59,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:38:59" (1/1) ... [2020-10-21 22:38:59,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:38:59,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:39:00,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:39:00,130 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:39:00,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:39:00,278 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:39:00,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00 WrapperNode [2020-10-21 22:39:00,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:39:00,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:39:00,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:39:00,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:39:00,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ... [2020-10-21 22:39:00,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ... [2020-10-21 22:39:00,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:39:00,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:39:00,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:39:00,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:39:00,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ... [2020-10-21 22:39:00,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ... [2020-10-21 22:39:00,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ... [2020-10-21 22:39:00,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ... [2020-10-21 22:39:00,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ... [2020-10-21 22:39:00,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ... [2020-10-21 22:39:00,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (1/1) ... [2020-10-21 22:39:00,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:39:00,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:39:00,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:39:00,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:39:00,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (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 [2020-10-21 22:39:00,467 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2020-10-21 22:39:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2020-10-21 22:39:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2020-10-21 22:39:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2020-10-21 22:39:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:39:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:39:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2020-10-21 22:39:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2020-10-21 22:39:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:39:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:39:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:39:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:39:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:39:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:39:00,472 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:39:01,576 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:39:01,576 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-21 22:39:01,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:39:01 BoogieIcfgContainer [2020-10-21 22:39:01,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:39:01,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:39:01,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:39:01,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:39:01,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:38:59" (1/3) ... [2020-10-21 22:39:01,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25827b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:39:01, skipping insertion in model container [2020-10-21 22:39:01,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:00" (2/3) ... [2020-10-21 22:39:01,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25827b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:39:01, skipping insertion in model container [2020-10-21 22:39:01,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:39:01" (3/3) ... [2020-10-21 22:39:01,588 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2020-10-21 22:39:01,599 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:39:01,600 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:39:01,607 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 22:39:01,608 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:39:01,646 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,646 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,647 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,647 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,647 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,648 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,648 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,648 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,649 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,649 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,649 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,649 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,649 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,650 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,650 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,650 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,650 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,650 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,651 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,651 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,651 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,651 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,651 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,652 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,652 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,652 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,652 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,652 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,653 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,653 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,653 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,653 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,653 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,653 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,653 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,654 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,654 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,654 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,655 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,655 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,655 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,655 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,656 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,656 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,656 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,656 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,656 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,657 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,657 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,657 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,657 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,658 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,658 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,658 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,658 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,658 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,658 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,659 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,659 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,659 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,659 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,659 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,660 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,660 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,660 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,660 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,660 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,660 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,661 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,661 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,662 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,662 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,663 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,663 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,663 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,663 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,663 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,664 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,664 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,664 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,664 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,664 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,665 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,665 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,665 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,665 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,665 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,665 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,666 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,666 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,666 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,666 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,666 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,667 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,667 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,667 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,667 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,667 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,668 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,668 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,668 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,668 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,668 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,669 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,669 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,669 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,669 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,669 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,670 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,670 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,670 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,670 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,671 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,671 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,671 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,671 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,671 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,671 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,672 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,672 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,672 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,672 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,672 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,672 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,673 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,673 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,673 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,673 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,674 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,674 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,674 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,674 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,675 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,675 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,675 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,675 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,676 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,676 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,676 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,676 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,676 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,677 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,677 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,677 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,677 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,677 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,677 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,678 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,678 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,678 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,678 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,678 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,679 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,679 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,679 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,679 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,679 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,679 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,679 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,680 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,680 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,680 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,680 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,680 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,681 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,681 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,681 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,681 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,681 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,681 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,681 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,682 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,682 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,682 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,682 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,683 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,683 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,683 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,683 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,683 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,684 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,684 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,684 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,684 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,684 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,685 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,685 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,685 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,689 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,689 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,689 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,689 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,689 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,690 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,690 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,690 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,690 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,690 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,690 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,691 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,691 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,691 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,691 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,691 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,692 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,692 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,692 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,698 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,698 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,698 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,698 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,698 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,699 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,699 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,699 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,699 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,699 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,699 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,700 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,700 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,700 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,700 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,700 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,701 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,701 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,701 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,703 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,703 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,703 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,703 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,703 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,704 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,704 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,704 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,704 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,704 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,705 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,705 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,705 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,705 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,705 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,706 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,706 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,706 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,706 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,706 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,707 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,707 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,707 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,707 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,707 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,707 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,708 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,708 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,708 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,708 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,709 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,709 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,709 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,709 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,709 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,710 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,710 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:01,719 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-21 22:39:01,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-21 22:39:01,755 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:39:01,755 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:39:01,755 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 22:39:01,755 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:39:01,756 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:39:01,756 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:39:01,756 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:39:01,756 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:39:01,772 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 22:39:01,773 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 175 transitions, 392 flow [2020-10-21 22:39:01,776 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 175 transitions, 392 flow [2020-10-21 22:39:01,778 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 161 places, 175 transitions, 392 flow [2020-10-21 22:39:01,857 INFO L129 PetriNetUnfolder]: 23/183 cut-off events. [2020-10-21 22:39:01,857 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-21 22:39:01,867 INFO L80 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 183 events. 23/183 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 448 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2020-10-21 22:39:01,878 INFO L116 LiptonReduction]: Number of co-enabled transitions 10120 [2020-10-21 22:39:04,883 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-21 22:39:05,566 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-10-21 22:39:05,814 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-21 22:39:05,845 INFO L131 LiptonReduction]: Checked pairs total: 28994 [2020-10-21 22:39:05,845 INFO L133 LiptonReduction]: Total number of compositions: 125 [2020-10-21 22:39:05,851 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 73 transitions, 188 flow [2020-10-21 22:39:06,117 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4024 states. [2020-10-21 22:39:06,120 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states. [2020-10-21 22:39:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:39:06,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:06,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:06,139 INFO L429 AbstractCegarLoop]: === Iteration 1 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:06,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:06,145 INFO L82 PathProgramCache]: Analyzing trace with hash 897952914, now seen corresponding path program 1 times [2020-10-21 22:39:06,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:06,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130160058] [2020-10-21 22:39:06,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:06,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130160058] [2020-10-21 22:39:06,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:06,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:39:06,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162349704] [2020-10-21 22:39:06,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:06,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:06,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:06,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:06,476 INFO L87 Difference]: Start difference. First operand 4024 states. Second operand 3 states. [2020-10-21 22:39:06,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:06,608 INFO L93 Difference]: Finished difference Result 5040 states and 18204 transitions. [2020-10-21 22:39:06,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:06,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-21 22:39:06,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:06,666 INFO L225 Difference]: With dead ends: 5040 [2020-10-21 22:39:06,666 INFO L226 Difference]: Without dead ends: 4288 [2020-10-21 22:39:06,667 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 [2020-10-21 22:39:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2020-10-21 22:39:06,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 3808. [2020-10-21 22:39:06,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-21 22:39:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 14333 transitions. [2020-10-21 22:39:06,945 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 14333 transitions. Word has length 12 [2020-10-21 22:39:06,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:06,947 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 14333 transitions. [2020-10-21 22:39:06,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:06,947 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 14333 transitions. [2020-10-21 22:39:06,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:39:06,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:06,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:06,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:39:06,953 INFO L429 AbstractCegarLoop]: === Iteration 2 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:06,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:06,953 INFO L82 PathProgramCache]: Analyzing trace with hash 2071901520, now seen corresponding path program 1 times [2020-10-21 22:39:06,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:06,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672037954] [2020-10-21 22:39:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:07,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:07,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672037954] [2020-10-21 22:39:07,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:07,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:39:07,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977661866] [2020-10-21 22:39:07,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:07,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:07,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:07,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:07,101 INFO L87 Difference]: Start difference. First operand 3808 states and 14333 transitions. Second operand 3 states. [2020-10-21 22:39:07,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:07,185 INFO L93 Difference]: Finished difference Result 3723 states and 14009 transitions. [2020-10-21 22:39:07,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:07,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-21 22:39:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:07,225 INFO L225 Difference]: With dead ends: 3723 [2020-10-21 22:39:07,226 INFO L226 Difference]: Without dead ends: 3723 [2020-10-21 22:39:07,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:07,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2020-10-21 22:39:07,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2020-10-21 22:39:07,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3723 states. [2020-10-21 22:39:07,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 14009 transitions. [2020-10-21 22:39:07,360 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 14009 transitions. Word has length 13 [2020-10-21 22:39:07,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:07,360 INFO L481 AbstractCegarLoop]: Abstraction has 3723 states and 14009 transitions. [2020-10-21 22:39:07,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:07,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 14009 transitions. [2020-10-21 22:39:07,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:39:07,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:07,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:07,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:39:07,364 INFO L429 AbstractCegarLoop]: === Iteration 3 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:07,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:07,364 INFO L82 PathProgramCache]: Analyzing trace with hash 2071901385, now seen corresponding path program 1 times [2020-10-21 22:39:07,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:07,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854880512] [2020-10-21 22:39:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:07,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:07,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854880512] [2020-10-21 22:39:07,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:07,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:39:07,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789850856] [2020-10-21 22:39:07,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:07,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:07,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:07,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:07,454 INFO L87 Difference]: Start difference. First operand 3723 states and 14009 transitions. Second operand 3 states. [2020-10-21 22:39:07,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:07,506 INFO L93 Difference]: Finished difference Result 3647 states and 13722 transitions. [2020-10-21 22:39:07,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:07,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-21 22:39:07,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:07,535 INFO L225 Difference]: With dead ends: 3647 [2020-10-21 22:39:07,535 INFO L226 Difference]: Without dead ends: 3647 [2020-10-21 22:39:07,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:07,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2020-10-21 22:39:07,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3647. [2020-10-21 22:39:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3647 states. [2020-10-21 22:39:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3647 states to 3647 states and 13722 transitions. [2020-10-21 22:39:07,717 INFO L78 Accepts]: Start accepts. Automaton has 3647 states and 13722 transitions. Word has length 13 [2020-10-21 22:39:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:07,718 INFO L481 AbstractCegarLoop]: Abstraction has 3647 states and 13722 transitions. [2020-10-21 22:39:07,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:07,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3647 states and 13722 transitions. [2020-10-21 22:39:07,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:39:07,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:07,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:07,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:39:07,723 INFO L429 AbstractCegarLoop]: === Iteration 4 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:07,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:07,724 INFO L82 PathProgramCache]: Analyzing trace with hash 595966343, now seen corresponding path program 1 times [2020-10-21 22:39:07,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:07,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966671803] [2020-10-21 22:39:07,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:07,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966671803] [2020-10-21 22:39:07,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:07,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 22:39:07,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206986017] [2020-10-21 22:39:07,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:39:07,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:07,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:39:07,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:39:07,808 INFO L87 Difference]: Start difference. First operand 3647 states and 13722 transitions. Second operand 6 states. [2020-10-21 22:39:08,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:08,356 INFO L93 Difference]: Finished difference Result 6032 states and 22395 transitions. [2020-10-21 22:39:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 22:39:08,356 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-21 22:39:08,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:08,402 INFO L225 Difference]: With dead ends: 6032 [2020-10-21 22:39:08,403 INFO L226 Difference]: Without dead ends: 6032 [2020-10-21 22:39:08,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:39:08,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2020-10-21 22:39:08,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3921. [2020-10-21 22:39:08,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3921 states. [2020-10-21 22:39:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 14610 transitions. [2020-10-21 22:39:08,560 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 14610 transitions. Word has length 17 [2020-10-21 22:39:08,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:08,561 INFO L481 AbstractCegarLoop]: Abstraction has 3921 states and 14610 transitions. [2020-10-21 22:39:08,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:39:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 14610 transitions. [2020-10-21 22:39:08,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:39:08,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:08,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:08,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:39:08,567 INFO L429 AbstractCegarLoop]: === Iteration 5 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:08,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:08,567 INFO L82 PathProgramCache]: Analyzing trace with hash 738276989, now seen corresponding path program 1 times [2020-10-21 22:39:08,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:08,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570890099] [2020-10-21 22:39:08,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:08,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:08,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570890099] [2020-10-21 22:39:08,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:08,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 22:39:08,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671761025] [2020-10-21 22:39:08,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:39:08,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:08,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:39:08,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:39:08,657 INFO L87 Difference]: Start difference. First operand 3921 states and 14610 transitions. Second operand 6 states. [2020-10-21 22:39:09,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:09,085 INFO L93 Difference]: Finished difference Result 6000 states and 22001 transitions. [2020-10-21 22:39:09,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 22:39:09,085 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-21 22:39:09,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:09,118 INFO L225 Difference]: With dead ends: 6000 [2020-10-21 22:39:09,118 INFO L226 Difference]: Without dead ends: 6000 [2020-10-21 22:39:09,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-21 22:39:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2020-10-21 22:39:09,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 4041. [2020-10-21 22:39:09,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4041 states. [2020-10-21 22:39:09,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4041 states to 4041 states and 15066 transitions. [2020-10-21 22:39:09,286 INFO L78 Accepts]: Start accepts. Automaton has 4041 states and 15066 transitions. Word has length 17 [2020-10-21 22:39:09,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:09,287 INFO L481 AbstractCegarLoop]: Abstraction has 4041 states and 15066 transitions. [2020-10-21 22:39:09,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:39:09,287 INFO L276 IsEmpty]: Start isEmpty. Operand 4041 states and 15066 transitions. [2020-10-21 22:39:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:39:09,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:09,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:09,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:39:09,295 INFO L429 AbstractCegarLoop]: === Iteration 6 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:09,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:09,295 INFO L82 PathProgramCache]: Analyzing trace with hash 596075465, now seen corresponding path program 2 times [2020-10-21 22:39:09,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:09,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141391491] [2020-10-21 22:39:09,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:09,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:09,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141391491] [2020-10-21 22:39:09,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:09,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:39:09,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338395299] [2020-10-21 22:39:09,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:39:09,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:09,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:39:09,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:39:09,404 INFO L87 Difference]: Start difference. First operand 4041 states and 15066 transitions. Second operand 5 states. [2020-10-21 22:39:09,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:09,529 INFO L93 Difference]: Finished difference Result 5732 states and 20852 transitions. [2020-10-21 22:39:09,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:39:09,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-21 22:39:09,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:09,550 INFO L225 Difference]: With dead ends: 5732 [2020-10-21 22:39:09,551 INFO L226 Difference]: Without dead ends: 5732 [2020-10-21 22:39:09,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:39:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5732 states. [2020-10-21 22:39:09,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5732 to 5693. [2020-10-21 22:39:09,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5693 states. [2020-10-21 22:39:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5693 states to 5693 states and 20785 transitions. [2020-10-21 22:39:09,724 INFO L78 Accepts]: Start accepts. Automaton has 5693 states and 20785 transitions. Word has length 17 [2020-10-21 22:39:09,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:09,724 INFO L481 AbstractCegarLoop]: Abstraction has 5693 states and 20785 transitions. [2020-10-21 22:39:09,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:39:09,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5693 states and 20785 transitions. [2020-10-21 22:39:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 22:39:09,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:09,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:09,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:39:09,732 INFO L429 AbstractCegarLoop]: === Iteration 7 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:09,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:09,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1605525282, now seen corresponding path program 1 times [2020-10-21 22:39:09,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:09,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786025923] [2020-10-21 22:39:09,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:09,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786025923] [2020-10-21 22:39:09,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:09,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:39:09,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183849239] [2020-10-21 22:39:09,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:39:09,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:09,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:39:09,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:39:09,785 INFO L87 Difference]: Start difference. First operand 5693 states and 20785 transitions. Second operand 4 states. [2020-10-21 22:39:09,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:09,967 INFO L93 Difference]: Finished difference Result 7998 states and 28204 transitions. [2020-10-21 22:39:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:39:09,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-21 22:39:09,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:09,982 INFO L225 Difference]: With dead ends: 7998 [2020-10-21 22:39:09,982 INFO L226 Difference]: Without dead ends: 4404 [2020-10-21 22:39:09,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:39:09,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2020-10-21 22:39:10,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 4365. [2020-10-21 22:39:10,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4365 states. [2020-10-21 22:39:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4365 states to 4365 states and 14441 transitions. [2020-10-21 22:39:10,108 INFO L78 Accepts]: Start accepts. Automaton has 4365 states and 14441 transitions. Word has length 17 [2020-10-21 22:39:10,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:10,108 INFO L481 AbstractCegarLoop]: Abstraction has 4365 states and 14441 transitions. [2020-10-21 22:39:10,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:39:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4365 states and 14441 transitions. [2020-10-21 22:39:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 22:39:10,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:10,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:10,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:39:10,113 INFO L429 AbstractCegarLoop]: === Iteration 8 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:10,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:10,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1287815807, now seen corresponding path program 1 times [2020-10-21 22:39:10,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:10,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045650906] [2020-10-21 22:39:10,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:10,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:10,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045650906] [2020-10-21 22:39:10,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:10,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:39:10,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387437938] [2020-10-21 22:39:10,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:39:10,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:10,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:39:10,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:39:10,210 INFO L87 Difference]: Start difference. First operand 4365 states and 14441 transitions. Second operand 5 states. [2020-10-21 22:39:10,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:10,319 INFO L93 Difference]: Finished difference Result 6318 states and 20619 transitions. [2020-10-21 22:39:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:39:10,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-21 22:39:10,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:10,331 INFO L225 Difference]: With dead ends: 6318 [2020-10-21 22:39:10,331 INFO L226 Difference]: Without dead ends: 3700 [2020-10-21 22:39:10,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:39:10,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2020-10-21 22:39:10,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 2442. [2020-10-21 22:39:10,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2442 states. [2020-10-21 22:39:10,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 7743 transitions. [2020-10-21 22:39:10,403 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 7743 transitions. Word has length 19 [2020-10-21 22:39:10,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:10,403 INFO L481 AbstractCegarLoop]: Abstraction has 2442 states and 7743 transitions. [2020-10-21 22:39:10,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:39:10,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 7743 transitions. [2020-10-21 22:39:10,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 22:39:10,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:10,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:10,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 22:39:10,408 INFO L429 AbstractCegarLoop]: === Iteration 9 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:10,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1427256125, now seen corresponding path program 1 times [2020-10-21 22:39:10,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:10,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797237437] [2020-10-21 22:39:10,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:10,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:10,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797237437] [2020-10-21 22:39:10,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:10,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:39:10,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081006290] [2020-10-21 22:39:10,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:10,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:10,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:10,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:10,455 INFO L87 Difference]: Start difference. First operand 2442 states and 7743 transitions. Second operand 3 states. [2020-10-21 22:39:10,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:10,478 INFO L93 Difference]: Finished difference Result 2442 states and 7678 transitions. [2020-10-21 22:39:10,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:10,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-21 22:39:10,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:10,483 INFO L225 Difference]: With dead ends: 2442 [2020-10-21 22:39:10,484 INFO L226 Difference]: Without dead ends: 1241 [2020-10-21 22:39:10,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:10,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-10-21 22:39:10,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1102. [2020-10-21 22:39:10,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-10-21 22:39:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 2989 transitions. [2020-10-21 22:39:10,510 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 2989 transitions. Word has length 19 [2020-10-21 22:39:10,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:10,510 INFO L481 AbstractCegarLoop]: Abstraction has 1102 states and 2989 transitions. [2020-10-21 22:39:10,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:10,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 2989 transitions. [2020-10-21 22:39:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:39:10,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:10,513 INFO L422 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] [2020-10-21 22:39:10,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 22:39:10,513 INFO L429 AbstractCegarLoop]: === Iteration 10 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:10,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:10,514 INFO L82 PathProgramCache]: Analyzing trace with hash 701410771, now seen corresponding path program 1 times [2020-10-21 22:39:10,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:10,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662887775] [2020-10-21 22:39:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:10,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662887775] [2020-10-21 22:39:10,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:10,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:39:10,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354347785] [2020-10-21 22:39:10,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:10,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:10,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:10,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:10,557 INFO L87 Difference]: Start difference. First operand 1102 states and 2989 transitions. Second operand 3 states. [2020-10-21 22:39:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:10,576 INFO L93 Difference]: Finished difference Result 1002 states and 2633 transitions. [2020-10-21 22:39:10,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:10,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-21 22:39:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:10,579 INFO L225 Difference]: With dead ends: 1002 [2020-10-21 22:39:10,579 INFO L226 Difference]: Without dead ends: 1002 [2020-10-21 22:39:10,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:10,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2020-10-21 22:39:10,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 950. [2020-10-21 22:39:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 950 states. [2020-10-21 22:39:10,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 2557 transitions. [2020-10-21 22:39:10,599 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 2557 transitions. Word has length 22 [2020-10-21 22:39:10,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:10,600 INFO L481 AbstractCegarLoop]: Abstraction has 950 states and 2557 transitions. [2020-10-21 22:39:10,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:10,600 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 2557 transitions. [2020-10-21 22:39:10,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:39:10,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:10,602 INFO L422 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] [2020-10-21 22:39:10,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 22:39:10,602 INFO L429 AbstractCegarLoop]: === Iteration 11 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:10,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:10,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2082311633, now seen corresponding path program 1 times [2020-10-21 22:39:10,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:10,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142646319] [2020-10-21 22:39:10,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:10,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:10,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142646319] [2020-10-21 22:39:10,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:10,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:39:10,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445630829] [2020-10-21 22:39:10,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:10,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:10,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:10,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:10,637 INFO L87 Difference]: Start difference. First operand 950 states and 2557 transitions. Second operand 3 states. [2020-10-21 22:39:10,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:10,661 INFO L93 Difference]: Finished difference Result 964 states and 2461 transitions. [2020-10-21 22:39:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:10,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-21 22:39:10,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:10,662 INFO L225 Difference]: With dead ends: 964 [2020-10-21 22:39:10,663 INFO L226 Difference]: Without dead ends: 964 [2020-10-21 22:39:10,663 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 [2020-10-21 22:39:10,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-10-21 22:39:10,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 912. [2020-10-21 22:39:10,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2020-10-21 22:39:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 2385 transitions. [2020-10-21 22:39:10,681 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 2385 transitions. Word has length 22 [2020-10-21 22:39:10,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:10,682 INFO L481 AbstractCegarLoop]: Abstraction has 912 states and 2385 transitions. [2020-10-21 22:39:10,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:10,682 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 2385 transitions. [2020-10-21 22:39:10,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 22:39:10,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:10,684 INFO L422 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] [2020-10-21 22:39:10,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-21 22:39:10,684 INFO L429 AbstractCegarLoop]: === Iteration 12 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:10,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:10,685 INFO L82 PathProgramCache]: Analyzing trace with hash -2082310641, now seen corresponding path program 1 times [2020-10-21 22:39:10,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:10,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500279811] [2020-10-21 22:39:10,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:10,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500279811] [2020-10-21 22:39:10,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:10,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 22:39:10,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127517545] [2020-10-21 22:39:10,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:39:10,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:10,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:39:10,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:39:10,756 INFO L87 Difference]: Start difference. First operand 912 states and 2385 transitions. Second operand 6 states. [2020-10-21 22:39:10,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:10,917 INFO L93 Difference]: Finished difference Result 992 states and 2404 transitions. [2020-10-21 22:39:10,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 22:39:10,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-21 22:39:10,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:10,920 INFO L225 Difference]: With dead ends: 992 [2020-10-21 22:39:10,920 INFO L226 Difference]: Without dead ends: 922 [2020-10-21 22:39:10,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:39:10,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2020-10-21 22:39:10,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 816. [2020-10-21 22:39:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2020-10-21 22:39:10,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 2062 transitions. [2020-10-21 22:39:10,937 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 2062 transitions. Word has length 22 [2020-10-21 22:39:10,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:10,937 INFO L481 AbstractCegarLoop]: Abstraction has 816 states and 2062 transitions. [2020-10-21 22:39:10,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:39:10,937 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 2062 transitions. [2020-10-21 22:39:10,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-21 22:39:10,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:10,940 INFO L422 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] [2020-10-21 22:39:10,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-21 22:39:10,940 INFO L429 AbstractCegarLoop]: === Iteration 13 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:10,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:10,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1760070652, now seen corresponding path program 1 times [2020-10-21 22:39:10,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:10,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835147767] [2020-10-21 22:39:10,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:11,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:11,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835147767] [2020-10-21 22:39:11,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:11,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 22:39:11,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976808384] [2020-10-21 22:39:11,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:39:11,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:11,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:39:11,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:39:11,024 INFO L87 Difference]: Start difference. First operand 816 states and 2062 transitions. Second operand 9 states. [2020-10-21 22:39:11,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:11,580 INFO L93 Difference]: Finished difference Result 1046 states and 2593 transitions. [2020-10-21 22:39:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-21 22:39:11,581 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-21 22:39:11,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:11,583 INFO L225 Difference]: With dead ends: 1046 [2020-10-21 22:39:11,583 INFO L226 Difference]: Without dead ends: 1035 [2020-10-21 22:39:11,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-10-21 22:39:11,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2020-10-21 22:39:11,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 785. [2020-10-21 22:39:11,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-10-21 22:39:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1986 transitions. [2020-10-21 22:39:11,600 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1986 transitions. Word has length 23 [2020-10-21 22:39:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:11,600 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 1986 transitions. [2020-10-21 22:39:11,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:39:11,600 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1986 transitions. [2020-10-21 22:39:11,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-21 22:39:11,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:11,602 INFO L422 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] [2020-10-21 22:39:11,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-21 22:39:11,603 INFO L429 AbstractCegarLoop]: === Iteration 14 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:11,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:11,603 INFO L82 PathProgramCache]: Analyzing trace with hash 192813980, now seen corresponding path program 2 times [2020-10-21 22:39:11,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:11,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446255759] [2020-10-21 22:39:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:11,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446255759] [2020-10-21 22:39:11,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:11,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 22:39:11,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723516592] [2020-10-21 22:39:11,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:39:11,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:11,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:39:11,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:39:11,708 INFO L87 Difference]: Start difference. First operand 785 states and 1986 transitions. Second operand 9 states. [2020-10-21 22:39:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:12,201 INFO L93 Difference]: Finished difference Result 1362 states and 3364 transitions. [2020-10-21 22:39:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-21 22:39:12,202 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-21 22:39:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:12,204 INFO L225 Difference]: With dead ends: 1362 [2020-10-21 22:39:12,204 INFO L226 Difference]: Without dead ends: 1362 [2020-10-21 22:39:12,205 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-10-21 22:39:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2020-10-21 22:39:12,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 952. [2020-10-21 22:39:12,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2020-10-21 22:39:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 2410 transitions. [2020-10-21 22:39:12,240 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 2410 transitions. Word has length 23 [2020-10-21 22:39:12,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:12,240 INFO L481 AbstractCegarLoop]: Abstraction has 952 states and 2410 transitions. [2020-10-21 22:39:12,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:39:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 2410 transitions. [2020-10-21 22:39:12,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-21 22:39:12,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:12,243 INFO L422 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] [2020-10-21 22:39:12,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-21 22:39:12,244 INFO L429 AbstractCegarLoop]: === Iteration 15 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:12,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:12,244 INFO L82 PathProgramCache]: Analyzing trace with hash 335124626, now seen corresponding path program 1 times [2020-10-21 22:39:12,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:12,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297340171] [2020-10-21 22:39:12,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:12,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297340171] [2020-10-21 22:39:12,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:12,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 22:39:12,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254809370] [2020-10-21 22:39:12,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:39:12,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:12,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:39:12,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:39:12,391 INFO L87 Difference]: Start difference. First operand 952 states and 2410 transitions. Second operand 9 states. [2020-10-21 22:39:12,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:12,863 INFO L93 Difference]: Finished difference Result 1305 states and 3241 transitions. [2020-10-21 22:39:12,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-21 22:39:12,863 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-21 22:39:12,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:12,866 INFO L225 Difference]: With dead ends: 1305 [2020-10-21 22:39:12,867 INFO L226 Difference]: Without dead ends: 1305 [2020-10-21 22:39:12,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2020-10-21 22:39:12,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2020-10-21 22:39:12,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 943. [2020-10-21 22:39:12,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2020-10-21 22:39:12,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 2390 transitions. [2020-10-21 22:39:12,892 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 2390 transitions. Word has length 23 [2020-10-21 22:39:12,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:12,892 INFO L481 AbstractCegarLoop]: Abstraction has 943 states and 2390 transitions. [2020-10-21 22:39:12,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:39:12,892 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 2390 transitions. [2020-10-21 22:39:12,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-21 22:39:12,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:12,895 INFO L422 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] [2020-10-21 22:39:12,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-21 22:39:12,895 INFO L429 AbstractCegarLoop]: === Iteration 16 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:12,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:12,896 INFO L82 PathProgramCache]: Analyzing trace with hash 366006516, now seen corresponding path program 1 times [2020-10-21 22:39:12,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:12,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176700911] [2020-10-21 22:39:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:13,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176700911] [2020-10-21 22:39:13,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:13,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:39:13,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741143728] [2020-10-21 22:39:13,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:39:13,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:13,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:39:13,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:39:13,043 INFO L87 Difference]: Start difference. First operand 943 states and 2390 transitions. Second operand 8 states. [2020-10-21 22:39:13,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:13,434 INFO L93 Difference]: Finished difference Result 1115 states and 2793 transitions. [2020-10-21 22:39:13,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-21 22:39:13,435 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-21 22:39:13,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:13,437 INFO L225 Difference]: With dead ends: 1115 [2020-10-21 22:39:13,437 INFO L226 Difference]: Without dead ends: 1115 [2020-10-21 22:39:13,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:39:13,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2020-10-21 22:39:13,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 930. [2020-10-21 22:39:13,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2020-10-21 22:39:13,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 2359 transitions. [2020-10-21 22:39:13,455 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 2359 transitions. Word has length 23 [2020-10-21 22:39:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:13,455 INFO L481 AbstractCegarLoop]: Abstraction has 930 states and 2359 transitions. [2020-10-21 22:39:13,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:39:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 2359 transitions. [2020-10-21 22:39:13,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-21 22:39:13,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:13,458 INFO L422 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] [2020-10-21 22:39:13,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-21 22:39:13,458 INFO L429 AbstractCegarLoop]: === Iteration 17 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:13,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:13,459 INFO L82 PathProgramCache]: Analyzing trace with hash 454489038, now seen corresponding path program 2 times [2020-10-21 22:39:13,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:13,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941662] [2020-10-21 22:39:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:13,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941662] [2020-10-21 22:39:13,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:13,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 22:39:13,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523718926] [2020-10-21 22:39:13,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:39:13,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:13,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:39:13,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:39:13,542 INFO L87 Difference]: Start difference. First operand 930 states and 2359 transitions. Second operand 9 states. [2020-10-21 22:39:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:14,221 INFO L93 Difference]: Finished difference Result 1549 states and 3865 transitions. [2020-10-21 22:39:14,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-21 22:39:14,225 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-21 22:39:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:14,228 INFO L225 Difference]: With dead ends: 1549 [2020-10-21 22:39:14,228 INFO L226 Difference]: Without dead ends: 1549 [2020-10-21 22:39:14,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-21 22:39:14,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2020-10-21 22:39:14,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 852. [2020-10-21 22:39:14,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2020-10-21 22:39:14,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 2176 transitions. [2020-10-21 22:39:14,249 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 2176 transitions. Word has length 23 [2020-10-21 22:39:14,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:14,249 INFO L481 AbstractCegarLoop]: Abstraction has 852 states and 2176 transitions. [2020-10-21 22:39:14,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:39:14,249 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 2176 transitions. [2020-10-21 22:39:14,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-21 22:39:14,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:14,251 INFO L422 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] [2020-10-21 22:39:14,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-21 22:39:14,252 INFO L429 AbstractCegarLoop]: === Iteration 18 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:14,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:14,252 INFO L82 PathProgramCache]: Analyzing trace with hash -927384806, now seen corresponding path program 2 times [2020-10-21 22:39:14,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:14,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247401739] [2020-10-21 22:39:14,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:14,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:14,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247401739] [2020-10-21 22:39:14,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:14,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 22:39:14,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330475919] [2020-10-21 22:39:14,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 22:39:14,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:14,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 22:39:14,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-21 22:39:14,348 INFO L87 Difference]: Start difference. First operand 852 states and 2176 transitions. Second operand 9 states. [2020-10-21 22:39:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:14,875 INFO L93 Difference]: Finished difference Result 1216 states and 3047 transitions. [2020-10-21 22:39:14,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 22:39:14,876 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-21 22:39:14,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:14,878 INFO L225 Difference]: With dead ends: 1216 [2020-10-21 22:39:14,878 INFO L226 Difference]: Without dead ends: 1216 [2020-10-21 22:39:14,879 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-21 22:39:14,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2020-10-21 22:39:14,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 756. [2020-10-21 22:39:14,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-10-21 22:39:14,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1920 transitions. [2020-10-21 22:39:14,892 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1920 transitions. Word has length 23 [2020-10-21 22:39:14,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:14,892 INFO L481 AbstractCegarLoop]: Abstraction has 756 states and 1920 transitions. [2020-10-21 22:39:14,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 22:39:14,892 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1920 transitions. [2020-10-21 22:39:14,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 22:39:14,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:14,894 INFO L422 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] [2020-10-21 22:39:14,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-21 22:39:14,894 INFO L429 AbstractCegarLoop]: === Iteration 19 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:14,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:14,895 INFO L82 PathProgramCache]: Analyzing trace with hash -146504096, now seen corresponding path program 1 times [2020-10-21 22:39:14,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:14,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803909279] [2020-10-21 22:39:14,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:14,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:14,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803909279] [2020-10-21 22:39:14,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:14,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:39:14,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156728470] [2020-10-21 22:39:14,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:39:14,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:14,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:39:14,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:39:14,966 INFO L87 Difference]: Start difference. First operand 756 states and 1920 transitions. Second operand 8 states. [2020-10-21 22:39:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:15,271 INFO L93 Difference]: Finished difference Result 924 states and 2339 transitions. [2020-10-21 22:39:15,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-21 22:39:15,272 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-21 22:39:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:15,273 INFO L225 Difference]: With dead ends: 924 [2020-10-21 22:39:15,274 INFO L226 Difference]: Without dead ends: 702 [2020-10-21 22:39:15,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-10-21 22:39:15,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2020-10-21 22:39:15,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 577. [2020-10-21 22:39:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-10-21 22:39:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 1439 transitions. [2020-10-21 22:39:15,284 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 1439 transitions. Word has length 28 [2020-10-21 22:39:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:15,284 INFO L481 AbstractCegarLoop]: Abstraction has 577 states and 1439 transitions. [2020-10-21 22:39:15,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:39:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1439 transitions. [2020-10-21 22:39:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 22:39:15,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:15,285 INFO L422 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] [2020-10-21 22:39:15,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-21 22:39:15,285 INFO L429 AbstractCegarLoop]: === Iteration 20 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:15,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:15,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1664150336, now seen corresponding path program 1 times [2020-10-21 22:39:15,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:15,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534437694] [2020-10-21 22:39:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:15,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:15,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534437694] [2020-10-21 22:39:15,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:15,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:39:15,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691071217] [2020-10-21 22:39:15,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:39:15,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:15,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:39:15,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:39:15,355 INFO L87 Difference]: Start difference. First operand 577 states and 1439 transitions. Second operand 8 states. [2020-10-21 22:39:15,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:15,650 INFO L93 Difference]: Finished difference Result 679 states and 1758 transitions. [2020-10-21 22:39:15,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-21 22:39:15,650 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-21 22:39:15,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:15,651 INFO L225 Difference]: With dead ends: 679 [2020-10-21 22:39:15,652 INFO L226 Difference]: Without dead ends: 383 [2020-10-21 22:39:15,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-10-21 22:39:15,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2020-10-21 22:39:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 341. [2020-10-21 22:39:15,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-10-21 22:39:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 817 transitions. [2020-10-21 22:39:15,658 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 817 transitions. Word has length 28 [2020-10-21 22:39:15,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:15,658 INFO L481 AbstractCegarLoop]: Abstraction has 341 states and 817 transitions. [2020-10-21 22:39:15,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:39:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 817 transitions. [2020-10-21 22:39:15,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 22:39:15,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:15,660 INFO L422 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] [2020-10-21 22:39:15,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-21 22:39:15,660 INFO L429 AbstractCegarLoop]: === Iteration 21 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:15,660 INFO L82 PathProgramCache]: Analyzing trace with hash -2133595784, now seen corresponding path program 2 times [2020-10-21 22:39:15,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:15,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111948040] [2020-10-21 22:39:15,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:15,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111948040] [2020-10-21 22:39:15,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:15,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:39:15,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281522763] [2020-10-21 22:39:15,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:39:15,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:15,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:39:15,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:39:15,699 INFO L87 Difference]: Start difference. First operand 341 states and 817 transitions. Second operand 4 states. [2020-10-21 22:39:15,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:15,736 INFO L93 Difference]: Finished difference Result 349 states and 845 transitions. [2020-10-21 22:39:15,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:39:15,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-21 22:39:15,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:15,737 INFO L225 Difference]: With dead ends: 349 [2020-10-21 22:39:15,737 INFO L226 Difference]: Without dead ends: 341 [2020-10-21 22:39:15,738 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 [2020-10-21 22:39:15,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2020-10-21 22:39:15,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 333. [2020-10-21 22:39:15,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-10-21 22:39:15,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 789 transitions. [2020-10-21 22:39:15,744 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 789 transitions. Word has length 28 [2020-10-21 22:39:15,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:15,744 INFO L481 AbstractCegarLoop]: Abstraction has 333 states and 789 transitions. [2020-10-21 22:39:15,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:39:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 789 transitions. [2020-10-21 22:39:15,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 22:39:15,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:15,745 INFO L422 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] [2020-10-21 22:39:15,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-21 22:39:15,746 INFO L429 AbstractCegarLoop]: === Iteration 22 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:15,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:15,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1518181542, now seen corresponding path program 1 times [2020-10-21 22:39:15,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:15,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321878208] [2020-10-21 22:39:15,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:15,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321878208] [2020-10-21 22:39:15,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:15,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 22:39:15,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033472417] [2020-10-21 22:39:15,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:39:15,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:15,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:39:15,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:39:15,793 INFO L87 Difference]: Start difference. First operand 333 states and 789 transitions. Second operand 6 states. [2020-10-21 22:39:15,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:15,903 INFO L93 Difference]: Finished difference Result 335 states and 830 transitions. [2020-10-21 22:39:15,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 22:39:15,904 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-21 22:39:15,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:15,905 INFO L225 Difference]: With dead ends: 335 [2020-10-21 22:39:15,905 INFO L226 Difference]: Without dead ends: 193 [2020-10-21 22:39:15,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-21 22:39:15,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-21 22:39:15,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 181. [2020-10-21 22:39:15,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-21 22:39:15,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 431 transitions. [2020-10-21 22:39:15,910 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 431 transitions. Word has length 28 [2020-10-21 22:39:15,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:15,910 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 431 transitions. [2020-10-21 22:39:15,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:39:15,910 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 431 transitions. [2020-10-21 22:39:15,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 22:39:15,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:15,911 INFO L422 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] [2020-10-21 22:39:15,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-21 22:39:15,911 INFO L429 AbstractCegarLoop]: === Iteration 23 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:15,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:15,912 INFO L82 PathProgramCache]: Analyzing trace with hash -333773122, now seen corresponding path program 2 times [2020-10-21 22:39:15,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:15,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072018222] [2020-10-21 22:39:15,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:15,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072018222] [2020-10-21 22:39:15,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:15,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 22:39:15,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545645522] [2020-10-21 22:39:15,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 22:39:15,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:15,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 22:39:15,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:39:15,991 INFO L87 Difference]: Start difference. First operand 181 states and 431 transitions. Second operand 7 states. [2020-10-21 22:39:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:16,092 INFO L93 Difference]: Finished difference Result 243 states and 577 transitions. [2020-10-21 22:39:16,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 22:39:16,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-21 22:39:16,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:16,094 INFO L225 Difference]: With dead ends: 243 [2020-10-21 22:39:16,094 INFO L226 Difference]: Without dead ends: 178 [2020-10-21 22:39:16,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-21 22:39:16,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-21 22:39:16,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 168. [2020-10-21 22:39:16,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-21 22:39:16,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 400 transitions. [2020-10-21 22:39:16,097 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 400 transitions. Word has length 28 [2020-10-21 22:39:16,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:16,098 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 400 transitions. [2020-10-21 22:39:16,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 22:39:16,098 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 400 transitions. [2020-10-21 22:39:16,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 22:39:16,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:16,099 INFO L422 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] [2020-10-21 22:39:16,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-21 22:39:16,099 INFO L429 AbstractCegarLoop]: === Iteration 24 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:16,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:16,099 INFO L82 PathProgramCache]: Analyzing trace with hash -882131804, now seen corresponding path program 3 times [2020-10-21 22:39:16,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:16,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74983686] [2020-10-21 22:39:16,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:16,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:39:16,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74983686] [2020-10-21 22:39:16,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:16,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 22:39:16,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716668082] [2020-10-21 22:39:16,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 22:39:16,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:16,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 22:39:16,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:39:16,223 INFO L87 Difference]: Start difference. First operand 168 states and 400 transitions. Second operand 8 states. [2020-10-21 22:39:16,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:16,340 INFO L93 Difference]: Finished difference Result 150 states and 385 transitions. [2020-10-21 22:39:16,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 22:39:16,341 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-21 22:39:16,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:16,341 INFO L225 Difference]: With dead ends: 150 [2020-10-21 22:39:16,341 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:39:16,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-21 22:39:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:39:16,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:39:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:39:16,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:39:16,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-10-21 22:39:16,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:16,343 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:39:16,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 22:39:16,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:39:16,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:39:16,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-21 22:39:16,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:39:16 BasicIcfg [2020-10-21 22:39:16,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:39:16,348 INFO L168 Benchmark]: Toolchain (without parser) took 16846.75 ms. Allocated memory was 140.5 MB in the beginning and 540.0 MB in the end (delta: 399.5 MB). Free memory was 101.5 MB in the beginning and 248.7 MB in the end (delta: -147.2 MB). Peak memory consumption was 252.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:16,349 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:39:16,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.09 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 157.1 MB in the end (delta: -56.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:16,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.21 ms. Allocated memory is still 203.4 MB. Free memory was 157.1 MB in the beginning and 154.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:16,350 INFO L168 Benchmark]: Boogie Preprocessor took 39.53 ms. Allocated memory is still 203.4 MB. Free memory was 154.5 MB in the beginning and 151.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:16,351 INFO L168 Benchmark]: RCFGBuilder took 1185.37 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 151.8 MB in the beginning and 156.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 66.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:16,352 INFO L168 Benchmark]: TraceAbstraction took 14766.88 ms. Allocated memory was 235.9 MB in the beginning and 540.0 MB in the end (delta: 304.1 MB). Free memory was 156.8 MB in the beginning and 248.7 MB in the end (delta: -91.9 MB). Peak memory consumption was 212.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:16,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 772.09 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 100.5 MB in the beginning and 157.1 MB in the end (delta: -56.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.21 ms. Allocated memory is still 203.4 MB. Free memory was 157.1 MB in the beginning and 154.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.53 ms. Allocated memory is still 203.4 MB. Free memory was 154.5 MB in the beginning and 151.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1185.37 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 151.8 MB in the beginning and 156.8 MB in the end (delta: -5.0 MB). Peak memory consumption was 66.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14766.88 ms. Allocated memory was 235.9 MB in the beginning and 540.0 MB in the end (delta: 304.1 MB). Free memory was 156.8 MB in the beginning and 248.7 MB in the end (delta: -91.9 MB). Peak memory consumption was 212.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5216 VarBasedMoverChecksPositive, 91 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 734 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.0s, 161 PlacesBefore, 64 PlacesAfterwards, 175 TransitionsBefore, 73 TransitionsAfterwards, 10120 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 5 ChoiceCompositions, 125 TotalNumberOfCompositions, 28994 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 152 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.5s, OverallIterations: 24, TraceHistogramMax: 1, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 2142 SDtfs, 3039 SDslu, 4988 SDs, 0 SdLazy, 3805 SolverSat, 490 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5693occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 24 MinimizatonAttempts, 8796 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 516 NumberOfCodeBlocks, 516 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 492 ConstructedInterpolants, 0 QuantifiedInterpolants, 46732 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 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...