/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:43:06,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:43:06,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:43:06,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:43:06,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:43:06,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:43:06,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:43:06,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:43:06,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:43:06,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:43:06,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:43:06,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:43:06,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:43:06,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:43:06,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:43:06,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:43:06,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:43:06,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:43:06,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:43:06,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:43:06,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:43:06,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:43:06,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:43:06,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:43:06,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:43:06,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:43:06,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:43:06,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:43:06,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:43:06,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:43:06,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:43:06,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:43:06,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:43:06,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:43:06,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:43:06,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:43:06,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:43:06,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:43:06,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:43:06,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:43:06,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:43:06,405 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-McrAutomaton-WP.epf [2020-10-21 23:43:06,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:43:06,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:43:06,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:43:06,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:43:06,436 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:43:06,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:43:06,436 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:43:06,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:43:06,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:43:06,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:43:06,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:43:06,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:43:06,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:43:06,438 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:43:06,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:43:06,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:43:06,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:43:06,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:43:06,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:43:06,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:43:06,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:43:06,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:43:06,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:43:06,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:43:06,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:43:06,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:43:06,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:43:06,444 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-21 23:43:06,444 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:43:06,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:43:06,445 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-21 23:43:06,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:43:06,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:43:06,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:43:06,755 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:43:06,755 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:43:06,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2020-10-21 23:43:06,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5cd660c/ad44c682e1a24dea8f1eebd1fdc09ef3/FLAG4838b3d85 [2020-10-21 23:43:07,358 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:43:07,359 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2020-10-21 23:43:07,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5cd660c/ad44c682e1a24dea8f1eebd1fdc09ef3/FLAG4838b3d85 [2020-10-21 23:43:07,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af5cd660c/ad44c682e1a24dea8f1eebd1fdc09ef3 [2020-10-21 23:43:07,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:43:07,664 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:43:07,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:43:07,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:43:07,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:43:07,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:43:07" (1/1) ... [2020-10-21 23:43:07,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271f1582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:07, skipping insertion in model container [2020-10-21 23:43:07,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:43:07" (1/1) ... [2020-10-21 23:43:07,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:43:07,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:43:08,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:43:08,290 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:43:08,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:43:08,460 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:43:08,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08 WrapperNode [2020-10-21 23:43:08,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:43:08,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:43:08,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:43:08,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:43:08,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (1/1) ... [2020-10-21 23:43:08,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (1/1) ... [2020-10-21 23:43:08,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:43:08,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:43:08,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:43:08,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:43:08,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (1/1) ... [2020-10-21 23:43:08,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (1/1) ... [2020-10-21 23:43:08,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (1/1) ... [2020-10-21 23:43:08,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (1/1) ... [2020-10-21 23:43:08,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (1/1) ... [2020-10-21 23:43:08,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (1/1) ... [2020-10-21 23:43:08,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (1/1) ... [2020-10-21 23:43:08,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:43:08,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:43:08,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:43:08,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:43:08,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (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 23:43:08,664 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2020-10-21 23:43:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2020-10-21 23:43:08,665 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2020-10-21 23:43:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2020-10-21 23:43:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 23:43:08,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:43:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2020-10-21 23:43:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2020-10-21 23:43:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 23:43:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:43:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:43:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:43:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:43:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:43:08,672 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 23:43:09,986 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:43:09,986 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-21 23:43:09,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:43:09 BoogieIcfgContainer [2020-10-21 23:43:09,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:43:09,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:43:09,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:43:09,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:43:09,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:43:07" (1/3) ... [2020-10-21 23:43:09,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258d2971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:43:09, skipping insertion in model container [2020-10-21 23:43:09,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:43:08" (2/3) ... [2020-10-21 23:43:09,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258d2971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:43:09, skipping insertion in model container [2020-10-21 23:43:09,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:43:09" (3/3) ... [2020-10-21 23:43:09,999 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2020-10-21 23:43:10,012 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:43:10,013 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:43:10,021 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 23:43:10,022 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:43:10,061 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,061 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,062 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,062 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,062 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,063 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,063 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,063 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,064 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,064 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,064 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,064 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,065 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,065 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,065 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,066 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,066 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,066 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,066 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,067 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,067 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,067 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,067 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,068 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,068 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,068 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,068 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,069 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,069 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,069 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,069 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,069 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,070 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,070 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,070 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,070 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,071 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,071 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,071 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,071 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,072 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,072 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,072 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,072 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,073 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,073 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,073 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,074 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,074 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,074 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,074 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,074 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,075 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,075 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,075 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,075 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,075 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,076 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,076 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,076 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,076 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,077 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,077 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,077 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,077 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,077 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,078 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,078 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,078 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,078 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,083 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,083 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,083 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,083 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,083 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,084 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,084 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,084 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,084 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,084 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,085 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,085 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,085 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,085 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,085 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,086 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,086 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,086 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,086 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,086 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,086 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,087 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,087 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,087 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,087 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,088 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,088 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,088 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,088 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,088 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,089 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,089 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,089 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,089 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,089 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,090 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,090 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,090 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,090 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,090 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,091 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,091 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,091 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,091 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,091 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,092 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,092 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,092 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,092 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,092 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,093 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,093 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,093 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,093 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,093 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,094 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,094 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,094 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,094 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,094 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,094 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,095 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,095 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,096 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,096 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,096 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,096 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,096 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,097 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,097 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,097 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,097 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,097 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,098 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,098 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,098 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,098 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,098 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,098 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,099 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,099 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,099 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,099 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,099 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,100 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,100 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,100 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,100 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,100 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,101 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,101 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,101 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,101 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,101 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,101 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,102 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,102 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,102 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,102 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,102 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,102 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,103 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,103 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,103 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,103 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,103 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,104 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,104 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,104 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,104 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,104 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,105 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,105 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,105 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,105 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,105 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,106 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,106 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,109 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,110 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,110 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,110 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,110 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,111 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,111 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,111 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,111 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,112 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,112 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,112 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,112 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,112 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,113 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,113 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,113 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,113 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,114 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,118 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,118 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,118 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,119 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,119 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,119 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,119 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,119 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,120 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,120 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,120 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,120 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,120 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,121 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,121 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,121 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,121 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,121 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,121 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,123 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,124 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,124 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,124 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,124 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,125 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,125 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,125 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~mem23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,125 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,125 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,126 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,126 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,126 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,126 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,126 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~nondet15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,127 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,127 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,127 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,127 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,127 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,128 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,128 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,128 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,128 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,128 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,129 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,129 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,129 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_check_progress2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,129 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,129 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,130 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,130 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,130 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,130 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,130 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,131 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,131 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork2_#t~post20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:43:10,140 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-21 23:43:10,155 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-21 23:43:10,178 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:43:10,178 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:43:10,178 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:43:10,179 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-21 23:43:10,179 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:43:10,179 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:43:10,179 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:43:10,179 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:43:10,196 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:43:10,197 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 175 transitions, 392 flow [2020-10-21 23:43:10,200 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 175 transitions, 392 flow [2020-10-21 23:43:10,202 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 161 places, 175 transitions, 392 flow [2020-10-21 23:43:10,280 INFO L129 PetriNetUnfolder]: 23/183 cut-off events. [2020-10-21 23:43:10,280 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-21 23:43:10,288 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 23:43:10,299 INFO L116 LiptonReduction]: Number of co-enabled transitions 10120 [2020-10-21 23:43:13,427 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-21 23:43:14,036 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 119 [2020-10-21 23:43:14,293 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-21 23:43:14,326 INFO L131 LiptonReduction]: Checked pairs total: 28994 [2020-10-21 23:43:14,326 INFO L133 LiptonReduction]: Total number of compositions: 125 [2020-10-21 23:43:14,332 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 73 transitions, 188 flow [2020-10-21 23:43:14,605 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4024 states. [2020-10-21 23:43:14,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4024 states. [2020-10-21 23:43:14,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:43:14,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:14,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:43:14,629 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 23:43:14,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:14,636 INFO L82 PathProgramCache]: Analyzing trace with hash 897952914, now seen corresponding path program 1 times [2020-10-21 23:43:14,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:14,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062823055] [2020-10-21 23:43:14,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:14,968 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 23:43:14,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062823055] [2020-10-21 23:43:14,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:14,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:43:14,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1627419388] [2020-10-21 23:43:14,972 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:14,977 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:15,002 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-21 23:43:15,003 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:15,010 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:15,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:43:15,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:15,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:43:15,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:43:15,029 INFO L87 Difference]: Start difference. First operand 4024 states. Second operand 3 states. [2020-10-21 23:43:15,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:15,201 INFO L93 Difference]: Finished difference Result 5040 states and 18204 transitions. [2020-10-21 23:43:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:43:15,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-21 23:43:15,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:15,258 INFO L225 Difference]: With dead ends: 5040 [2020-10-21 23:43:15,259 INFO L226 Difference]: Without dead ends: 4288 [2020-10-21 23:43:15,260 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 23:43:15,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2020-10-21 23:43:15,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 3808. [2020-10-21 23:43:15,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-21 23:43:15,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 14333 transitions. [2020-10-21 23:43:15,562 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 14333 transitions. Word has length 12 [2020-10-21 23:43:15,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:15,563 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 14333 transitions. [2020-10-21 23:43:15,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:43:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 14333 transitions. [2020-10-21 23:43:15,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:43:15,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:15,568 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:43:15,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:43:15,569 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 23:43:15,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:15,569 INFO L82 PathProgramCache]: Analyzing trace with hash 2071901520, now seen corresponding path program 1 times [2020-10-21 23:43:15,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:15,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077641120] [2020-10-21 23:43:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:15,707 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 23:43:15,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077641120] [2020-10-21 23:43:15,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:15,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:43:15,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [639515631] [2020-10-21 23:43:15,708 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:15,710 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:15,712 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-10-21 23:43:15,712 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:15,713 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:15,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:43:15,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:15,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:43:15,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:43:15,715 INFO L87 Difference]: Start difference. First operand 3808 states and 14333 transitions. Second operand 3 states. [2020-10-21 23:43:15,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:15,781 INFO L93 Difference]: Finished difference Result 3723 states and 14009 transitions. [2020-10-21 23:43:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:43:15,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-21 23:43:15,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:15,812 INFO L225 Difference]: With dead ends: 3723 [2020-10-21 23:43:15,813 INFO L226 Difference]: Without dead ends: 3723 [2020-10-21 23:43:15,814 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 23:43:15,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2020-10-21 23:43:15,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2020-10-21 23:43:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3723 states. [2020-10-21 23:43:15,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 14009 transitions. [2020-10-21 23:43:15,962 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 14009 transitions. Word has length 13 [2020-10-21 23:43:15,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:15,963 INFO L481 AbstractCegarLoop]: Abstraction has 3723 states and 14009 transitions. [2020-10-21 23:43:15,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:43:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 14009 transitions. [2020-10-21 23:43:15,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:43:15,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:15,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:43:15,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:43:15,966 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 23:43:15,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:15,966 INFO L82 PathProgramCache]: Analyzing trace with hash 2071901385, now seen corresponding path program 1 times [2020-10-21 23:43:15,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:15,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943224979] [2020-10-21 23:43:15,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:16,140 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 23:43:16,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943224979] [2020-10-21 23:43:16,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:16,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 23:43:16,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [190093529] [2020-10-21 23:43:16,144 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:16,145 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:16,147 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-10-21 23:43:16,147 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:16,147 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:16,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:43:16,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:16,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:43:16,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:43:16,148 INFO L87 Difference]: Start difference. First operand 3723 states and 14009 transitions. Second operand 3 states. [2020-10-21 23:43:16,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:16,200 INFO L93 Difference]: Finished difference Result 3647 states and 13722 transitions. [2020-10-21 23:43:16,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:43:16,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-21 23:43:16,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:16,230 INFO L225 Difference]: With dead ends: 3647 [2020-10-21 23:43:16,230 INFO L226 Difference]: Without dead ends: 3647 [2020-10-21 23:43:16,230 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 23:43:16,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2020-10-21 23:43:16,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3647. [2020-10-21 23:43:16,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3647 states. [2020-10-21 23:43:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3647 states to 3647 states and 13722 transitions. [2020-10-21 23:43:16,373 INFO L78 Accepts]: Start accepts. Automaton has 3647 states and 13722 transitions. Word has length 13 [2020-10-21 23:43:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:16,374 INFO L481 AbstractCegarLoop]: Abstraction has 3647 states and 13722 transitions. [2020-10-21 23:43:16,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:43:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3647 states and 13722 transitions. [2020-10-21 23:43:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 23:43:16,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:16,379 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 23:43:16,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:43:16,379 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 23:43:16,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:16,380 INFO L82 PathProgramCache]: Analyzing trace with hash 595966343, now seen corresponding path program 1 times [2020-10-21 23:43:16,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:16,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795513182] [2020-10-21 23:43:16,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:16,490 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 23:43:16,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795513182] [2020-10-21 23:43:16,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:16,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 23:43:16,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1267377932] [2020-10-21 23:43:16,491 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:16,494 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:16,499 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 49 transitions. [2020-10-21 23:43:16,500 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:16,551 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:16,551 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:16,731 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [42993#(and (<= ~ctr2~0 0) (or (<= ~ctr1~0 0) (= ~ctr2~0 0)))] [2020-10-21 23:43:16,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 23:43:16,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:16,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 23:43:16,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:43:16,732 INFO L87 Difference]: Start difference. First operand 3647 states and 13722 transitions. Second operand 7 states. [2020-10-21 23:43:17,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:17,062 INFO L93 Difference]: Finished difference Result 4810 states and 17418 transitions. [2020-10-21 23:43:17,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 23:43:17,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-21 23:43:17,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:17,097 INFO L225 Difference]: With dead ends: 4810 [2020-10-21 23:43:17,097 INFO L226 Difference]: Without dead ends: 4810 [2020-10-21 23:43:17,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-21 23:43:17,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-10-21 23:43:17,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4071. [2020-10-21 23:43:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4071 states. [2020-10-21 23:43:17,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 15025 transitions. [2020-10-21 23:43:17,312 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 15025 transitions. Word has length 17 [2020-10-21 23:43:17,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:17,312 INFO L481 AbstractCegarLoop]: Abstraction has 4071 states and 15025 transitions. [2020-10-21 23:43:17,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 23:43:17,313 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 15025 transitions. [2020-10-21 23:43:17,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 23:43:17,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:17,319 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 23:43:17,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:43:17,319 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 23:43:17,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:17,319 INFO L82 PathProgramCache]: Analyzing trace with hash 596075465, now seen corresponding path program 2 times [2020-10-21 23:43:17,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:17,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020008571] [2020-10-21 23:43:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:17,405 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 23:43:17,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020008571] [2020-10-21 23:43:17,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:17,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:43:17,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1307794686] [2020-10-21 23:43:17,407 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:17,409 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:17,415 INFO L252 McrAutomatonBuilder]: Finished intersection with 40 states and 61 transitions. [2020-10-21 23:43:17,416 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:17,583 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:17,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:43:17,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:17,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:43:17,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:43:17,585 INFO L87 Difference]: Start difference. First operand 4071 states and 15025 transitions. Second operand 5 states. [2020-10-21 23:43:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:17,711 INFO L93 Difference]: Finished difference Result 5750 states and 20725 transitions. [2020-10-21 23:43:17,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:43:17,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-21 23:43:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:17,735 INFO L225 Difference]: With dead ends: 5750 [2020-10-21 23:43:17,735 INFO L226 Difference]: Without dead ends: 5750 [2020-10-21 23:43:17,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 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 23:43:17,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5750 states. [2020-10-21 23:43:17,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5750 to 5711. [2020-10-21 23:43:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5711 states. [2020-10-21 23:43:17,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5711 states to 5711 states and 20658 transitions. [2020-10-21 23:43:17,901 INFO L78 Accepts]: Start accepts. Automaton has 5711 states and 20658 transitions. Word has length 17 [2020-10-21 23:43:17,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:17,901 INFO L481 AbstractCegarLoop]: Abstraction has 5711 states and 20658 transitions. [2020-10-21 23:43:17,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:43:17,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5711 states and 20658 transitions. [2020-10-21 23:43:17,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 23:43:17,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:17,908 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 23:43:17,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:43:17,908 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 23:43:17,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:17,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1605525282, now seen corresponding path program 1 times [2020-10-21 23:43:17,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:17,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898161842] [2020-10-21 23:43:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:17,963 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 23:43:17,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898161842] [2020-10-21 23:43:17,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:17,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:43:17,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1953119470] [2020-10-21 23:43:17,965 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:17,968 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:17,973 INFO L252 McrAutomatonBuilder]: Finished intersection with 34 states and 49 transitions. [2020-10-21 23:43:17,973 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:18,195 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:18,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:43:18,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:18,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:43:18,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:43:18,196 INFO L87 Difference]: Start difference. First operand 5711 states and 20658 transitions. Second operand 4 states. [2020-10-21 23:43:18,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:18,367 INFO L93 Difference]: Finished difference Result 8016 states and 28077 transitions. [2020-10-21 23:43:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:43:18,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-21 23:43:18,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:18,389 INFO L225 Difference]: With dead ends: 8016 [2020-10-21 23:43:18,389 INFO L226 Difference]: Without dead ends: 4404 [2020-10-21 23:43:18,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 23:43:18,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2020-10-21 23:43:18,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 4365. [2020-10-21 23:43:18,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4365 states. [2020-10-21 23:43:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4365 states to 4365 states and 14389 transitions. [2020-10-21 23:43:18,510 INFO L78 Accepts]: Start accepts. Automaton has 4365 states and 14389 transitions. Word has length 17 [2020-10-21 23:43:18,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:18,510 INFO L481 AbstractCegarLoop]: Abstraction has 4365 states and 14389 transitions. [2020-10-21 23:43:18,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:43:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 4365 states and 14389 transitions. [2020-10-21 23:43:18,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 23:43:18,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:18,515 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 23:43:18,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:43:18,515 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 23:43:18,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:18,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1287815807, now seen corresponding path program 1 times [2020-10-21 23:43:18,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:18,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985066893] [2020-10-21 23:43:18,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:18,561 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 23:43:18,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985066893] [2020-10-21 23:43:18,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:18,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:43:18,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1817310418] [2020-10-21 23:43:18,563 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:18,565 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:18,572 INFO L252 McrAutomatonBuilder]: Finished intersection with 45 states and 69 transitions. [2020-10-21 23:43:18,572 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:18,647 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:18,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:43:18,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:18,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:43:18,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:43:18,648 INFO L87 Difference]: Start difference. First operand 4365 states and 14389 transitions. Second operand 3 states. [2020-10-21 23:43:18,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:18,682 INFO L93 Difference]: Finished difference Result 4365 states and 14294 transitions. [2020-10-21 23:43:18,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:43:18,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-21 23:43:18,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:18,692 INFO L225 Difference]: With dead ends: 4365 [2020-10-21 23:43:18,693 INFO L226 Difference]: Without dead ends: 3056 [2020-10-21 23:43:18,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 23:43:18,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2020-10-21 23:43:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 2442. [2020-10-21 23:43:18,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2442 states. [2020-10-21 23:43:18,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 7711 transitions. [2020-10-21 23:43:18,755 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 7711 transitions. Word has length 19 [2020-10-21 23:43:18,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:18,756 INFO L481 AbstractCegarLoop]: Abstraction has 2442 states and 7711 transitions. [2020-10-21 23:43:18,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:43:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 7711 transitions. [2020-10-21 23:43:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-21 23:43:18,759 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:18,759 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 23:43:18,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:43:18,759 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 23:43:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:18,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1427256125, now seen corresponding path program 1 times [2020-10-21 23:43:18,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:18,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017141534] [2020-10-21 23:43:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:18,794 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 23:43:18,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017141534] [2020-10-21 23:43:18,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:18,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:43:18,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1884860540] [2020-10-21 23:43:18,796 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:18,798 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:18,802 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 45 transitions. [2020-10-21 23:43:18,802 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:18,860 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:18,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:43:18,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:18,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:43:18,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:43:18,861 INFO L87 Difference]: Start difference. First operand 2442 states and 7711 transitions. Second operand 3 states. [2020-10-21 23:43:18,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:18,887 INFO L93 Difference]: Finished difference Result 2442 states and 7646 transitions. [2020-10-21 23:43:18,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:43:18,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-21 23:43:18,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:18,891 INFO L225 Difference]: With dead ends: 2442 [2020-10-21 23:43:18,892 INFO L226 Difference]: Without dead ends: 1241 [2020-10-21 23:43:18,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 23:43:18,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-10-21 23:43:18,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1102. [2020-10-21 23:43:18,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1102 states. [2020-10-21 23:43:18,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 2957 transitions. [2020-10-21 23:43:18,916 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 2957 transitions. Word has length 19 [2020-10-21 23:43:18,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:18,916 INFO L481 AbstractCegarLoop]: Abstraction has 1102 states and 2957 transitions. [2020-10-21 23:43:18,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:43:18,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 2957 transitions. [2020-10-21 23:43:18,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 23:43:18,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:18,918 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 23:43:18,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 23:43:18,919 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 23:43:18,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:18,919 INFO L82 PathProgramCache]: Analyzing trace with hash 701410771, now seen corresponding path program 1 times [2020-10-21 23:43:18,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:18,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833873976] [2020-10-21 23:43:18,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:18,953 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 23:43:18,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833873976] [2020-10-21 23:43:18,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:18,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:43:18,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1000481764] [2020-10-21 23:43:18,954 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:18,958 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:18,963 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-10-21 23:43:18,963 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:19,049 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:19,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:43:19,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:19,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:43:19,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:43:19,050 INFO L87 Difference]: Start difference. First operand 1102 states and 2957 transitions. Second operand 3 states. [2020-10-21 23:43:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:19,071 INFO L93 Difference]: Finished difference Result 1002 states and 2609 transitions. [2020-10-21 23:43:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:43:19,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-21 23:43:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:19,075 INFO L225 Difference]: With dead ends: 1002 [2020-10-21 23:43:19,075 INFO L226 Difference]: Without dead ends: 1002 [2020-10-21 23:43:19,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 23:43:19,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2020-10-21 23:43:19,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 950. [2020-10-21 23:43:19,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 950 states. [2020-10-21 23:43:19,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 2533 transitions. [2020-10-21 23:43:19,136 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 2533 transitions. Word has length 22 [2020-10-21 23:43:19,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:19,137 INFO L481 AbstractCegarLoop]: Abstraction has 950 states and 2533 transitions. [2020-10-21 23:43:19,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:43:19,138 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 2533 transitions. [2020-10-21 23:43:19,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 23:43:19,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:19,140 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 23:43:19,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 23:43:19,140 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 23:43:19,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:19,140 INFO L82 PathProgramCache]: Analyzing trace with hash -2082311633, now seen corresponding path program 1 times [2020-10-21 23:43:19,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:19,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596292127] [2020-10-21 23:43:19,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:19,188 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 23:43:19,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596292127] [2020-10-21 23:43:19,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:19,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:43:19,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [109849720] [2020-10-21 23:43:19,189 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:19,193 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:19,200 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-10-21 23:43:19,200 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:19,215 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:19,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 23:43:19,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:19,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 23:43:19,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 23:43:19,216 INFO L87 Difference]: Start difference. First operand 950 states and 2533 transitions. Second operand 3 states. [2020-10-21 23:43:19,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:19,246 INFO L93 Difference]: Finished difference Result 964 states and 2437 transitions. [2020-10-21 23:43:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 23:43:19,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-21 23:43:19,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:19,250 INFO L225 Difference]: With dead ends: 964 [2020-10-21 23:43:19,250 INFO L226 Difference]: Without dead ends: 964 [2020-10-21 23:43:19,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 23:43:19,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2020-10-21 23:43:19,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 912. [2020-10-21 23:43:19,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 912 states. [2020-10-21 23:43:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 2361 transitions. [2020-10-21 23:43:19,269 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 2361 transitions. Word has length 22 [2020-10-21 23:43:19,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:19,270 INFO L481 AbstractCegarLoop]: Abstraction has 912 states and 2361 transitions. [2020-10-21 23:43:19,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 23:43:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 2361 transitions. [2020-10-21 23:43:19,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 23:43:19,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:19,272 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 23:43:19,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 23:43:19,272 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 23:43:19,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:19,273 INFO L82 PathProgramCache]: Analyzing trace with hash -2082310641, now seen corresponding path program 1 times [2020-10-21 23:43:19,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:19,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546337056] [2020-10-21 23:43:19,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:19,318 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 23:43:19,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546337056] [2020-10-21 23:43:19,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:19,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:43:19,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1753958760] [2020-10-21 23:43:19,319 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:19,322 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:19,329 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-10-21 23:43:19,329 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:19,381 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:19,381 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:19,425 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:19,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:43:19,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:19,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:43:19,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:43:19,426 INFO L87 Difference]: Start difference. First operand 912 states and 2361 transitions. Second operand 5 states. [2020-10-21 23:43:19,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:19,551 INFO L93 Difference]: Finished difference Result 911 states and 2257 transitions. [2020-10-21 23:43:19,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:43:19,551 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-21 23:43:19,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:19,555 INFO L225 Difference]: With dead ends: 911 [2020-10-21 23:43:19,556 INFO L226 Difference]: Without dead ends: 851 [2020-10-21 23:43:19,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:43:19,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2020-10-21 23:43:19,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 767. [2020-10-21 23:43:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-10-21 23:43:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1965 transitions. [2020-10-21 23:43:19,577 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1965 transitions. Word has length 22 [2020-10-21 23:43:19,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:19,578 INFO L481 AbstractCegarLoop]: Abstraction has 767 states and 1965 transitions. [2020-10-21 23:43:19,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:43:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1965 transitions. [2020-10-21 23:43:19,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-21 23:43:19,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:19,580 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 23:43:19,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-21 23:43:19,581 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 23:43:19,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:19,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1760070652, now seen corresponding path program 1 times [2020-10-21 23:43:19,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:19,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966054723] [2020-10-21 23:43:19,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:19,672 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 23:43:19,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966054723] [2020-10-21 23:43:19,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:19,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 23:43:19,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [22087633] [2020-10-21 23:43:19,674 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:19,680 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:19,704 INFO L252 McrAutomatonBuilder]: Finished intersection with 92 states and 183 transitions. [2020-10-21 23:43:19,704 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:19,750 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:19,750 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:19,751 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 1] term [2020-10-21 23:43:19,751 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:19,818 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:19,819 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:19,820 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 1] term [2020-10-21 23:43:19,820 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:19,874 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:19,874 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:19,875 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 3, 1] term [2020-10-21 23:43:19,875 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:19,961 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:19,961 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:20,021 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:20,022 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:20,158 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:20,159 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:20,327 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:20,327 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:20,463 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:20,463 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:20,679 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:20,679 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:20,737 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:20,738 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:21,019 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:21,020 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:21,461 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [111949#(and (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (= ~ctr2~0 0) (<= ~ctr1~0 1)) (or (<= qrcu_reader1Thread1of1ForFork0_~myidx~0 0) (<= ~ctr1~0 0) (= ~ctr2~0 1))), 111948#(or (<= ~ctr1~0 0) (= ~ctr2~0 0)), 111951#(and (or (<= ~ctr2~0 0) (<= ~ctr1~0 0)) (or (<= ~ctr1~0 0) (= ~ctr2~0 0) (< 0 ~idx~0))), 111950#(and (or (<= ~ctr2~0 0) (<= ~ctr1~0 0)) (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (<= ~ctr1~0 0) (= ~ctr2~0 0))), 111953#(and (or (<= ~ctr2~0 0) (< qrcu_reader1Thread1of1ForFork0_~myidx~0 1)) (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (<= ~ctr1~0 0) (= ~ctr2~0 0))), 111952#(and (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (= ~ctr2~0 0)) (or (<= qrcu_reader1Thread1of1ForFork0_~myidx~0 0) (= ~ctr2~0 1))), 111954#(and (or (<= ~ctr2~0 0) (< ~idx~0 1)) (or (<= ~ctr1~0 0) (= ~ctr2~0 0) (< 0 ~idx~0)))] [2020-10-21 23:43:21,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-21 23:43:21,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:21,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-21 23:43:21,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-21 23:43:21,462 INFO L87 Difference]: Start difference. First operand 767 states and 1965 transitions. Second operand 15 states. [2020-10-21 23:43:21,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:21,928 INFO L93 Difference]: Finished difference Result 920 states and 2305 transitions. [2020-10-21 23:43:21,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-21 23:43:21,928 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2020-10-21 23:43:21,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:21,931 INFO L225 Difference]: With dead ends: 920 [2020-10-21 23:43:21,931 INFO L226 Difference]: Without dead ends: 909 [2020-10-21 23:43:21,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-10-21 23:43:21,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2020-10-21 23:43:21,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 785. [2020-10-21 23:43:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2020-10-21 23:43:21,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1986 transitions. [2020-10-21 23:43:21,945 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1986 transitions. Word has length 23 [2020-10-21 23:43:21,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:21,945 INFO L481 AbstractCegarLoop]: Abstraction has 785 states and 1986 transitions. [2020-10-21 23:43:21,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-21 23:43:21,946 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1986 transitions. [2020-10-21 23:43:21,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-21 23:43:21,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:21,948 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 23:43:21,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-21 23:43:21,948 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 23:43:21,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:21,948 INFO L82 PathProgramCache]: Analyzing trace with hash 192813980, now seen corresponding path program 2 times [2020-10-21 23:43:21,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:21,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668089289] [2020-10-21 23:43:21,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:22,044 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 23:43:22,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668089289] [2020-10-21 23:43:22,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:22,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 23:43:22,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [843177470] [2020-10-21 23:43:22,045 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:22,049 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:22,070 INFO L252 McrAutomatonBuilder]: Finished intersection with 100 states and 205 transitions. [2020-10-21 23:43:22,070 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:22,085 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:22,085 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:22,132 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:22,132 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:22,182 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:22,182 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:23,182 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 4, 2, 1] term [2020-10-21 23:43:23,183 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:23,184 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 15, 2, 1] term [2020-10-21 23:43:23,184 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:23,391 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 4, 2, 1] term [2020-10-21 23:43:23,391 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:23,392 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 15, 2, 1] term [2020-10-21 23:43:23,392 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:23,584 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 15, 1] term [2020-10-21 23:43:23,584 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:24,248 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [114471#(or (<= ~ctr1~0 0) (and (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (and (= ~ctr2~0 0) (<= 2 ~ctr1~0))) (or (<= qrcu_reader1Thread1of1ForFork0_~myidx~0 0) (= ~ctr2~0 1)))), 114470#(and (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (and (<= 3 ~ctr1~0) (= ~ctr2~0 0))) (or (<= qrcu_reader1Thread1of1ForFork0_~myidx~0 0) (and (= ~ctr2~0 1) (<= 2 ~ctr1~0)))), 114473#(and (or (<= ~ctr2~0 0) (<= ~ctr1~0 0)) (or (<= ~ctr1~0 0) (= ~ctr2~0 0) (< 0 ~idx~0))), 114472#(and (or (<= ~ctr2~0 0) (<= ~ctr1~0 0)) (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (<= ~ctr1~0 0) (= ~ctr2~0 0))), 114475#(and (or (<= ~ctr2~0 0) (< ~idx~0 1)) (or (<= ~ctr1~0 0) (< 0 ~idx~0) (= ~idx~0 0)) (or (<= ~ctr1~0 0) (= ~ctr2~0 0) (< 0 ~idx~0))), 114474#(and (or (<= ~ctr2~0 0) (< qrcu_reader1Thread1of1ForFork0_~myidx~0 1)) (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (<= ~ctr1~0 0) (= ~ctr2~0 0)) (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (<= ~ctr1~0 0) (= qrcu_reader1Thread1of1ForFork0_~myidx~0 0)))] [2020-10-21 23:43:24,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-21 23:43:24,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:24,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-21 23:43:24,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-21 23:43:24,250 INFO L87 Difference]: Start difference. First operand 785 states and 1986 transitions. Second operand 15 states. [2020-10-21 23:43:25,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:25,444 INFO L93 Difference]: Finished difference Result 921 states and 2364 transitions. [2020-10-21 23:43:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-21 23:43:25,444 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2020-10-21 23:43:25,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:25,449 INFO L225 Difference]: With dead ends: 921 [2020-10-21 23:43:25,449 INFO L226 Difference]: Without dead ends: 921 [2020-10-21 23:43:25,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=230, Invalid=640, Unknown=0, NotChecked=0, Total=870 [2020-10-21 23:43:25,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-10-21 23:43:25,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 741. [2020-10-21 23:43:25,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-10-21 23:43:25,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1888 transitions. [2020-10-21 23:43:25,470 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1888 transitions. Word has length 23 [2020-10-21 23:43:25,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:25,470 INFO L481 AbstractCegarLoop]: Abstraction has 741 states and 1888 transitions. [2020-10-21 23:43:25,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-21 23:43:25,471 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1888 transitions. [2020-10-21 23:43:25,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-21 23:43:25,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:25,473 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 23:43:25,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-21 23:43:25,474 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 23:43:25,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:25,474 INFO L82 PathProgramCache]: Analyzing trace with hash -629339722, now seen corresponding path program 1 times [2020-10-21 23:43:25,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:25,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126197687] [2020-10-21 23:43:25,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:25,592 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 23:43:25,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126197687] [2020-10-21 23:43:25,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:25,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 23:43:25,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1538121833] [2020-10-21 23:43:25,593 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:25,599 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:25,625 INFO L252 McrAutomatonBuilder]: Finished intersection with 89 states and 177 transitions. [2020-10-21 23:43:25,625 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:25,658 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:25,659 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:25,714 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:25,714 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:25,922 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:25,923 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:25,923 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 15, 1] term [2020-10-21 23:43:25,923 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:26,060 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:26,060 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:26,061 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 15, 1] term [2020-10-21 23:43:26,061 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:26,368 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 15, 1] term [2020-10-21 23:43:26,368 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:26,782 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:26,782 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:27,075 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [116919#(or (<= ~ctr1~0 0) (and (= ~ctr2~0 0) (<= 2 ~ctr1~0)) (< 0 qrcu_reader2Thread1of1ForFork1_~myidx~1)), 116918#(and (or (<= qrcu_reader2Thread1of1ForFork1_~myidx~1 0) (and (= ~ctr2~0 1) (<= 2 ~ctr1~0))) (or (and (<= 3 ~ctr1~0) (= ~ctr2~0 0)) (< 0 qrcu_reader2Thread1of1ForFork1_~myidx~1))), 116921#(or (<= ~ctr1~0 0) (and (= ~ctr2~0 0) (<= 2 ~ctr1~0)) (< 0 ~idx~0)), 116920#(or (<= ~ctr1~0 0) (= ~ctr2~0 0) (< 0 qrcu_reader2Thread1of1ForFork1_~myidx~1)), 116923#(and (<= ~ctr2~0 0) (or (<= ~ctr1~0 0) (and (= qrcu_reader2Thread1of1ForFork1_~myidx~1 0) (= ~ctr2~0 0)))), 116922#(or (<= ~ctr1~0 0) (= ~ctr2~0 0) (< 0 ~idx~0))] [2020-10-21 23:43:27,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-21 23:43:27,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:27,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-21 23:43:27,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-21 23:43:27,077 INFO L87 Difference]: Start difference. First operand 741 states and 1888 transitions. Second operand 15 states. [2020-10-21 23:43:28,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:28,189 INFO L93 Difference]: Finished difference Result 1064 states and 2626 transitions. [2020-10-21 23:43:28,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-21 23:43:28,190 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2020-10-21 23:43:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:28,194 INFO L225 Difference]: With dead ends: 1064 [2020-10-21 23:43:28,194 INFO L226 Difference]: Without dead ends: 1064 [2020-10-21 23:43:28,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=290, Invalid=832, Unknown=0, NotChecked=0, Total=1122 [2020-10-21 23:43:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-10-21 23:43:28,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 724. [2020-10-21 23:43:28,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2020-10-21 23:43:28,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1842 transitions. [2020-10-21 23:43:28,213 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1842 transitions. Word has length 23 [2020-10-21 23:43:28,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:28,213 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1842 transitions. [2020-10-21 23:43:28,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-21 23:43:28,213 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1842 transitions. [2020-10-21 23:43:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 23:43:28,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:28,215 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 23:43:28,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-21 23:43:28,216 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 23:43:28,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:28,216 INFO L82 PathProgramCache]: Analyzing trace with hash -146504096, now seen corresponding path program 1 times [2020-10-21 23:43:28,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:28,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623804898] [2020-10-21 23:43:28,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:28,298 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 23:43:28,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623804898] [2020-10-21 23:43:28,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:28,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 23:43:28,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1709802776] [2020-10-21 23:43:28,300 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:28,306 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:28,330 INFO L252 McrAutomatonBuilder]: Finished intersection with 97 states and 188 transitions. [2020-10-21 23:43:28,330 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:28,348 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:28,348 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:28,447 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:28,447 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:28,479 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:28,480 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:28,514 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:28,514 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:28,645 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:28,646 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:28,686 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:28,687 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:28,704 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:28,704 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:28,776 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:28,776 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:29,165 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:29,165 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:29,253 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:29,254 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:29,835 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [119481#(and (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (= ~ctr2~0 0)) (or (<= qrcu_reader1Thread1of1ForFork0_~myidx~0 0) (= ~ctr2~0 1))), 119483#(and (<= ~ctr2~0 0) (or (= ~ctr2~0 0) (< 0 ~idx~0))), 119482#(and (<= ~ctr2~0 0) (or (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0) (= ~ctr2~0 0)))] [2020-10-21 23:43:29,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-21 23:43:29,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:29,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-21 23:43:29,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-21 23:43:29,836 INFO L87 Difference]: Start difference. First operand 724 states and 1842 transitions. Second operand 10 states. [2020-10-21 23:43:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:30,086 INFO L93 Difference]: Finished difference Result 796 states and 2052 transitions. [2020-10-21 23:43:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-21 23:43:30,087 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-10-21 23:43:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:30,088 INFO L225 Difference]: With dead ends: 796 [2020-10-21 23:43:30,089 INFO L226 Difference]: Without dead ends: 704 [2020-10-21 23:43:30,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-21 23:43:30,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2020-10-21 23:43:30,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 657. [2020-10-21 23:43:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-10-21 23:43:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 1679 transitions. [2020-10-21 23:43:30,102 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 1679 transitions. Word has length 28 [2020-10-21 23:43:30,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:30,102 INFO L481 AbstractCegarLoop]: Abstraction has 657 states and 1679 transitions. [2020-10-21 23:43:30,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-21 23:43:30,102 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 1679 transitions. [2020-10-21 23:43:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 23:43:30,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:30,104 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 23:43:30,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-21 23:43:30,104 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 23:43:30,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:30,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1144546732, now seen corresponding path program 2 times [2020-10-21 23:43:30,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:30,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267373404] [2020-10-21 23:43:30,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:30,177 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 23:43:30,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267373404] [2020-10-21 23:43:30,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:30,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 23:43:30,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [603227262] [2020-10-21 23:43:30,179 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:30,185 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:30,211 INFO L252 McrAutomatonBuilder]: Finished intersection with 100 states and 198 transitions. [2020-10-21 23:43:30,212 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:30,409 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:30,410 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:30,522 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:30,522 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:31,349 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:31,349 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:31,372 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [121609#(and (<= ~ctr2~0 0) (or (and (= ~ctr2~0 0) (= qrcu_reader1Thread1of1ForFork0_~myidx~0 0)) (< 0 qrcu_reader1Thread1of1ForFork0_~myidx~0))), 121611#(and (or (<= qrcu_reader1Thread1of1ForFork0_~myidx~0 0) (<= 2 ~ctr2~0)) (<= 1 ~ctr2~0)), 121610#(and (<= ~ctr2~0 0) (or (< 0 ~idx~0) (and (= ~ctr2~0 0) (= ~idx~0 0))))] [2020-10-21 23:43:31,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-21 23:43:31,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:31,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-21 23:43:31,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-21 23:43:31,374 INFO L87 Difference]: Start difference. First operand 657 states and 1679 transitions. Second operand 10 states. [2020-10-21 23:43:31,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:31,660 INFO L93 Difference]: Finished difference Result 872 states and 2244 transitions. [2020-10-21 23:43:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 23:43:31,660 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-10-21 23:43:31,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:31,662 INFO L225 Difference]: With dead ends: 872 [2020-10-21 23:43:31,662 INFO L226 Difference]: Without dead ends: 638 [2020-10-21 23:43:31,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-21 23:43:31,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2020-10-21 23:43:31,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 595. [2020-10-21 23:43:31,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-10-21 23:43:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 1500 transitions. [2020-10-21 23:43:31,673 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 1500 transitions. Word has length 28 [2020-10-21 23:43:31,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:31,674 INFO L481 AbstractCegarLoop]: Abstraction has 595 states and 1500 transitions. [2020-10-21 23:43:31,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-21 23:43:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 1500 transitions. [2020-10-21 23:43:31,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 23:43:31,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:31,675 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 23:43:31,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-21 23:43:31,675 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 23:43:31,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:31,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1664150336, now seen corresponding path program 1 times [2020-10-21 23:43:31,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:31,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472773661] [2020-10-21 23:43:31,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:31,751 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 23:43:31,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472773661] [2020-10-21 23:43:31,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:31,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 23:43:31,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [450799616] [2020-10-21 23:43:31,753 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:31,758 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:31,777 INFO L252 McrAutomatonBuilder]: Finished intersection with 94 states and 182 transitions. [2020-10-21 23:43:31,778 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:31,789 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:31,789 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:31,837 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:31,837 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:31,912 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:31,912 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:32,008 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:32,009 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:32,069 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:32,070 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:32,162 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:32,162 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:32,279 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:32,279 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:32,414 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:32,415 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:32,810 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [123689#(or (= ~ctr2~0 0) (< 0 qrcu_reader2Thread1of1ForFork1_~myidx~1)), 123688#(and (or (= ~ctr2~0 0) (< 0 qrcu_reader2Thread1of1ForFork1_~myidx~1)) (or (= ~ctr2~0 1) (<= qrcu_reader2Thread1of1ForFork1_~myidx~1 0))), 123690#(or (= ~ctr2~0 0) (< 0 ~idx~0))] [2020-10-21 23:43:32,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 23:43:32,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:32,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 23:43:32,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-21 23:43:32,812 INFO L87 Difference]: Start difference. First operand 595 states and 1500 transitions. Second operand 11 states. [2020-10-21 23:43:33,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:33,276 INFO L93 Difference]: Finished difference Result 729 states and 1893 transitions. [2020-10-21 23:43:33,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-21 23:43:33,277 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2020-10-21 23:43:33,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:33,279 INFO L225 Difference]: With dead ends: 729 [2020-10-21 23:43:33,279 INFO L226 Difference]: Without dead ends: 629 [2020-10-21 23:43:33,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2020-10-21 23:43:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-10-21 23:43:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 522. [2020-10-21 23:43:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-10-21 23:43:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 1319 transitions. [2020-10-21 23:43:33,290 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 1319 transitions. Word has length 28 [2020-10-21 23:43:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:33,290 INFO L481 AbstractCegarLoop]: Abstraction has 522 states and 1319 transitions. [2020-10-21 23:43:33,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 23:43:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 1319 transitions. [2020-10-21 23:43:33,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 23:43:33,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:33,291 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 23:43:33,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-21 23:43:33,292 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 23:43:33,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:33,292 INFO L82 PathProgramCache]: Analyzing trace with hash -2088246972, now seen corresponding path program 2 times [2020-10-21 23:43:33,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:33,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585935434] [2020-10-21 23:43:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:33,374 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 23:43:33,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585935434] [2020-10-21 23:43:33,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:33,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 23:43:33,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1405171547] [2020-10-21 23:43:33,375 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:33,380 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:33,400 INFO L252 McrAutomatonBuilder]: Finished intersection with 89 states and 170 transitions. [2020-10-21 23:43:33,400 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:33,546 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:33,546 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:33,612 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:33,612 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:33,779 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:33,780 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:34,194 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:34,195 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:34,324 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [125493#(or (and (= qrcu_reader2Thread1of1ForFork1_~myidx~1 0) (= ~ctr2~0 0)) (< 0 qrcu_reader2Thread1of1ForFork1_~myidx~1)), 125495#(and (<= 1 ~ctr2~0) (or (<= qrcu_reader2Thread1of1ForFork1_~myidx~1 0) (<= 2 ~ctr2~0))), 125494#(or (< 0 ~idx~0) (and (= ~ctr2~0 0) (= ~idx~0 0)))] [2020-10-21 23:43:34,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-21 23:43:34,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:34,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-21 23:43:34,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-21 23:43:34,326 INFO L87 Difference]: Start difference. First operand 522 states and 1319 transitions. Second operand 10 states. [2020-10-21 23:43:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:34,900 INFO L93 Difference]: Finished difference Result 870 states and 2213 transitions. [2020-10-21 23:43:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-21 23:43:34,901 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-10-21 23:43:34,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:34,902 INFO L225 Difference]: With dead ends: 870 [2020-10-21 23:43:34,902 INFO L226 Difference]: Without dead ends: 407 [2020-10-21 23:43:34,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2020-10-21 23:43:34,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-10-21 23:43:34,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 364. [2020-10-21 23:43:34,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-21 23:43:34,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 814 transitions. [2020-10-21 23:43:34,910 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 814 transitions. Word has length 28 [2020-10-21 23:43:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:34,910 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 814 transitions. [2020-10-21 23:43:34,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-21 23:43:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 814 transitions. [2020-10-21 23:43:34,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 23:43:34,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:34,911 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 23:43:34,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-21 23:43:34,912 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 23:43:34,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:34,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1408298670, now seen corresponding path program 3 times [2020-10-21 23:43:34,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:34,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951507379] [2020-10-21 23:43:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:35,013 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 23:43:35,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951507379] [2020-10-21 23:43:35,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:35,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 23:43:35,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [827226779] [2020-10-21 23:43:35,014 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:35,020 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:35,042 INFO L252 McrAutomatonBuilder]: Finished intersection with 98 states and 182 transitions. [2020-10-21 23:43:35,042 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:35,297 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:35,298 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:35,371 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 15, 1] term [2020-10-21 23:43:35,371 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:35,889 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-21 23:43:35,889 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-21 23:43:36,086 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [127123#(and (= qrcu_reader2Thread1of1ForFork1_~myidx~1 0) (<= 0 |qrcu_updaterThread1of1ForFork2_#t~post18|)), 127125#(and (<= 1 ~ctr2~0) (or (<= qrcu_reader2Thread1of1ForFork1_~myidx~1 0) (<= 2 ~ctr2~0))), 127124#(or (and (= qrcu_reader2Thread1of1ForFork1_~myidx~1 0) (<= 0 ~ctr2~0)) (< 0 ~idx~0)), 127126#(or (<= 1 ~ctr2~0) (< 0 qrcu_reader2Thread1of1ForFork1_~myidx~1))] [2020-10-21 23:43:36,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-21 23:43:36,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:36,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-21 23:43:36,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-21 23:43:36,087 INFO L87 Difference]: Start difference. First operand 364 states and 814 transitions. Second operand 11 states. [2020-10-21 23:43:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:36,404 INFO L93 Difference]: Finished difference Result 342 states and 783 transitions. [2020-10-21 23:43:36,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-21 23:43:36,404 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2020-10-21 23:43:36,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:36,405 INFO L225 Difference]: With dead ends: 342 [2020-10-21 23:43:36,405 INFO L226 Difference]: Without dead ends: 197 [2020-10-21 23:43:36,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 63 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2020-10-21 23:43:36,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-21 23:43:36,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 189. [2020-10-21 23:43:36,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-21 23:43:36,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 413 transitions. [2020-10-21 23:43:36,411 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 413 transitions. Word has length 28 [2020-10-21 23:43:36,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:36,411 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 413 transitions. [2020-10-21 23:43:36,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-21 23:43:36,411 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 413 transitions. [2020-10-21 23:43:36,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 23:43:36,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:36,412 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 23:43:36,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-21 23:43:36,412 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 23:43:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:36,413 INFO L82 PathProgramCache]: Analyzing trace with hash 15928742, now seen corresponding path program 3 times [2020-10-21 23:43:36,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:36,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845662284] [2020-10-21 23:43:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:36,510 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 23:43:36,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845662284] [2020-10-21 23:43:36,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:36,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-21 23:43:36,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1919800000] [2020-10-21 23:43:36,512 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:36,518 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:36,535 INFO L252 McrAutomatonBuilder]: Finished intersection with 81 states and 148 transitions. [2020-10-21 23:43:36,535 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:37,316 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [127867#(and (= ~idx~0 0) (<= 1 ~ctr2~0)), 127866#(or (and (= ~ctr2~0 0) (= qrcu_reader1Thread1of1ForFork0_~myidx~0 0)) (< 0 ~idx~0))] [2020-10-21 23:43:37,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 23:43:37,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:37,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 23:43:37,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-21 23:43:37,318 INFO L87 Difference]: Start difference. First operand 189 states and 413 transitions. Second operand 9 states. [2020-10-21 23:43:37,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:37,586 INFO L93 Difference]: Finished difference Result 253 states and 562 transitions. [2020-10-21 23:43:37,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-21 23:43:37,587 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-10-21 23:43:37,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:37,587 INFO L225 Difference]: With dead ends: 253 [2020-10-21 23:43:37,588 INFO L226 Difference]: Without dead ends: 180 [2020-10-21 23:43:37,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-21 23:43:37,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-21 23:43:37,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 168. [2020-10-21 23:43:37,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-21 23:43:37,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 362 transitions. [2020-10-21 23:43:37,591 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 362 transitions. Word has length 28 [2020-10-21 23:43:37,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:37,592 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 362 transitions. [2020-10-21 23:43:37,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 23:43:37,592 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 362 transitions. [2020-10-21 23:43:37,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-21 23:43:37,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:43:37,593 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 23:43:37,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-21 23:43:37,593 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 23:43:37,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:43:37,593 INFO L82 PathProgramCache]: Analyzing trace with hash -882131804, now seen corresponding path program 4 times [2020-10-21 23:43:37,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:43:37,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537802264] [2020-10-21 23:43:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:43:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:43:37,683 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 23:43:37,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537802264] [2020-10-21 23:43:37,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:43:37,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 23:43:37,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [711471952] [2020-10-21 23:43:37,684 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-21 23:43:37,690 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-21 23:43:37,704 INFO L252 McrAutomatonBuilder]: Finished intersection with 62 states and 102 transitions. [2020-10-21 23:43:37,705 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-21 23:43:38,010 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-21 23:43:38,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-21 23:43:38,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:43:38,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-21 23:43:38,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-21 23:43:38,011 INFO L87 Difference]: Start difference. First operand 168 states and 362 transitions. Second operand 8 states. [2020-10-21 23:43:38,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:43:38,096 INFO L93 Difference]: Finished difference Result 150 states and 345 transitions. [2020-10-21 23:43:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 23:43:38,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-10-21 23:43:38,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:43:38,097 INFO L225 Difference]: With dead ends: 150 [2020-10-21 23:43:38,097 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:43:38,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-21 23:43:38,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:43:38,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:43:38,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:43:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:43:38,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-10-21 23:43:38,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:43:38,098 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:43:38,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-21 23:43:38,098 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:43:38,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:43:38,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-21 23:43:38,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:43:38 BasicIcfg [2020-10-21 23:43:38,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:43:38,111 INFO L168 Benchmark]: Toolchain (without parser) took 30447.84 ms. Allocated memory was 140.5 MB in the beginning and 648.0 MB in the end (delta: 507.5 MB). Free memory was 102.4 MB in the beginning and 468.7 MB in the end (delta: -366.3 MB). Peak memory consumption was 141.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:43:38,111 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 23:43:38,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.32 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 155.9 MB in the end (delta: -54.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-10-21 23:43:38,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.84 ms. Allocated memory is still 203.4 MB. Free memory was 155.9 MB in the beginning and 152.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-10-21 23:43:38,117 INFO L168 Benchmark]: Boogie Preprocessor took 42.67 ms. Allocated memory is still 203.4 MB. Free memory was 152.5 MB in the beginning and 150.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:43:38,118 INFO L168 Benchmark]: RCFGBuilder took 1416.11 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 150.5 MB in the beginning and 153.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:43:38,118 INFO L168 Benchmark]: TraceAbstraction took 28114.86 ms. Allocated memory was 234.9 MB in the beginning and 648.0 MB in the end (delta: 413.1 MB). Free memory was 153.8 MB in the beginning and 468.7 MB in the end (delta: -314.9 MB). Peak memory consumption was 98.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:43:38,127 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.32 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 155.9 MB in the end (delta: -54.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.84 ms. Allocated memory is still 203.4 MB. Free memory was 155.9 MB in the beginning and 152.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.67 ms. Allocated memory is still 203.4 MB. Free memory was 152.5 MB in the beginning and 150.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1416.11 ms. Allocated memory was 203.4 MB in the beginning and 234.9 MB in the end (delta: 31.5 MB). Free memory was 150.5 MB in the beginning and 153.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28114.86 ms. Allocated memory was 234.9 MB in the beginning and 648.0 MB in the end (delta: 413.1 MB). Free memory was 153.8 MB in the beginning and 468.7 MB in the end (delta: -314.9 MB). Peak memory consumption was 98.2 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: 4.1s, 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: 27.9s, OverallIterations: 21, TraceHistogramMax: 1, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 1642 SDtfs, 2500 SDslu, 4824 SDs, 0 SdLazy, 3798 SolverSat, 413 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 968 GetRequests, 727 SyntacticMatches, 30 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5711occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 3142 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 458 NumberOfCodeBlocks, 458 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 437 ConstructedInterpolants, 0 QuantifiedInterpolants, 46939 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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...