/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 22:21:57,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 22:21:57,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 22:21:57,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 22:21:57,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 22:21:57,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 22:21:57,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 22:21:57,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 22:21:57,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 22:21:57,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 22:21:57,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 22:21:57,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 22:21:57,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 22:21:57,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 22:21:57,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 22:21:57,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 22:21:57,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 22:21:57,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 22:21:57,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 22:21:57,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 22:21:57,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 22:21:57,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 22:21:57,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 22:21:57,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 22:21:57,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 22:21:57,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 22:21:57,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 22:21:57,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 22:21:57,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 22:21:57,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 22:21:57,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 22:21:57,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 22:21:57,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 22:21:57,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 22:21:57,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 22:21:57,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 22:21:57,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-05 22:21:57,315 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 22:21:57,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 22:21:57,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 22:21:57,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 22:21:57,318 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 22:21:57,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 22:21:57,319 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 22:21:57,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 22:21:57,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 22:21:57,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 22:21:57,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 22:21:57,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 22:21:57,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 22:21:57,321 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 22:21:57,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 22:21:57,321 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 22:21:57,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 22:21:57,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 22:21:57,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 22:21:57,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 22:21:57,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 22:21:57,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 22:21:57,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 22:21:57,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-05 22:21:57,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 22:21:57,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 22:21:57,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 22:21:57,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 22:21:57,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-05 22:21:57,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-05 22:21:57,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 22:21:57,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 22:21:57,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 22:21:57,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 22:21:57,644 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 22:21:57,645 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2020-10-05 22:21:57,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66189ad29/dfc3f4acfa244aa7b5c940d7d50b8b19/FLAG0a092e0f6 [2020-10-05 22:21:58,273 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 22:21:58,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2020-10-05 22:21:58,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66189ad29/dfc3f4acfa244aa7b5c940d7d50b8b19/FLAG0a092e0f6 [2020-10-05 22:21:58,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66189ad29/dfc3f4acfa244aa7b5c940d7d50b8b19 [2020-10-05 22:21:58,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 22:21:58,576 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 22:21:58,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 22:21:58,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 22:21:58,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 22:21:58,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:21:58" (1/1) ... [2020-10-05 22:21:58,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34bc2bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:58, skipping insertion in model container [2020-10-05 22:21:58,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 10:21:58" (1/1) ... [2020-10-05 22:21:58,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 22:21:58,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 22:21:59,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:21:59,194 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 22:21:59,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 22:21:59,324 INFO L208 MainTranslator]: Completed translation [2020-10-05 22:21:59,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59 WrapperNode [2020-10-05 22:21:59,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 22:21:59,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 22:21:59,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 22:21:59,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 22:21:59,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (1/1) ... [2020-10-05 22:21:59,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (1/1) ... [2020-10-05 22:21:59,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 22:21:59,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 22:21:59,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 22:21:59,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 22:21:59,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (1/1) ... [2020-10-05 22:21:59,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (1/1) ... [2020-10-05 22:21:59,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (1/1) ... [2020-10-05 22:21:59,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (1/1) ... [2020-10-05 22:21:59,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (1/1) ... [2020-10-05 22:21:59,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (1/1) ... [2020-10-05 22:21:59,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (1/1) ... [2020-10-05 22:21:59,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 22:21:59,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 22:21:59,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 22:21:59,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 22:21:59,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (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 [2020-10-05 22:21:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2020-10-05 22:21:59,507 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2020-10-05 22:21:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2020-10-05 22:21:59,507 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2020-10-05 22:21:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-05 22:21:59,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 22:21:59,508 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2020-10-05 22:21:59,508 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2020-10-05 22:21:59,508 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-05 22:21:59,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 22:21:59,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 22:21:59,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-05 22:21:59,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 22:21:59,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 22:21:59,510 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 22:22:00,608 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 22:22:00,608 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-05 22:22:00,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:22:00 BoogieIcfgContainer [2020-10-05 22:22:00,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 22:22:00,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 22:22:00,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 22:22:00,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 22:22:00,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 10:21:58" (1/3) ... [2020-10-05 22:22:00,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649ef26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:22:00, skipping insertion in model container [2020-10-05 22:22:00,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 10:21:59" (2/3) ... [2020-10-05 22:22:00,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649ef26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 10:22:00, skipping insertion in model container [2020-10-05 22:22:00,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 10:22:00" (3/3) ... [2020-10-05 22:22:00,618 INFO L109 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2020-10-05 22:22:00,628 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 22:22:00,629 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-05 22:22:00,637 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-05 22:22:00,638 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 22:22:00,674 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,674 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,674 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,675 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,675 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,675 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,675 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,676 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,676 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,676 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,676 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,676 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,677 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,677 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,677 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,678 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,678 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,678 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,678 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,678 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,679 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,679 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,679 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,679 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,680 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,680 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,680 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,680 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,680 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,681 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,681 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,681 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,681 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,681 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,681 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,682 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,682 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,682 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,683 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,683 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,683 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,683 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,684 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,684 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,684 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,684 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,684 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,685 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,685 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,685 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,685 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,686 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,686 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,686 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,686 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,686 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,686 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,687 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,687 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,687 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,687 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,687 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,688 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,688 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,688 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,688 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,688 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,689 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,689 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,689 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,690 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,691 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,691 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,691 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,691 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,691 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,692 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,692 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,692 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,692 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,693 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,693 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,693 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,693 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,693 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,693 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,694 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,694 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,694 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,694 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,694 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,694 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,695 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,695 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,695 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,695 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,696 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,696 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,696 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,696 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,696 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,697 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,697 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,697 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,697 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,697 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,698 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,698 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,698 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,698 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,698 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,699 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,699 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,699 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,699 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,699 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,700 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,700 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,700 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,700 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,700 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,700 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,701 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,701 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,701 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,701 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,702 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,702 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,702 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,702 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,702 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,702 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,703 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,703 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,703 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,703 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,703 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,703 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,704 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,704 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,704 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,704 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,704 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,705 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,705 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,705 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,705 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,705 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,705 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,706 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,706 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,706 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,706 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,707 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,707 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,707 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,707 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,707 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,707 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,708 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,708 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,708 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,708 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,708 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,709 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,709 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,709 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,709 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,709 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,710 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,710 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,710 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,710 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,710 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,711 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,711 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,715 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,715 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,715 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,715 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,716 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,716 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,716 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,716 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,716 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,717 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,717 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,717 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,717 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,717 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,717 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,718 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,718 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,718 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,718 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,718 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,719 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,719 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,719 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,719 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,719 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,719 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,720 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,720 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,720 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,720 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,720 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,720 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,721 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,721 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,721 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,728 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,729 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,729 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,729 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,729 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,729 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,729 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,729 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,729 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,730 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,730 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,730 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,730 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,730 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,730 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,730 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,731 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,731 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,731 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,736 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,736 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,736 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,737 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,737 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,737 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,737 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,737 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,738 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,738 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,738 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,738 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,738 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,739 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,739 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,739 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,739 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,739 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,740 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 22:22:00,773 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-05 22:22:00,792 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 22:22:00,793 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 22:22:00,793 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-05 22:22:00,793 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 22:22:00,793 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 22:22:00,793 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 22:22:00,793 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 22:22:00,793 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 22:22:00,811 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 171 transitions, 384 flow [2020-10-05 22:22:00,813 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 157 places, 171 transitions, 384 flow [2020-10-05 22:22:00,891 INFO L129 PetriNetUnfolder]: 23/179 cut-off events. [2020-10-05 22:22:00,891 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-05 22:22:00,899 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 23/179 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 447 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2020-10-05 22:22:00,911 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 157 places, 171 transitions, 384 flow [2020-10-05 22:22:00,956 INFO L129 PetriNetUnfolder]: 23/179 cut-off events. [2020-10-05 22:22:00,957 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-05 22:22:00,959 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 179 events. 23/179 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 447 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2020-10-05 22:22:00,970 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 10120 [2020-10-05 22:22:00,971 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-10-05 22:22:03,703 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-05 22:22:04,750 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-10-05 22:22:04,864 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-05 22:22:05,033 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-05 22:22:05,172 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-05 22:22:05,209 INFO L206 etLargeBlockEncoding]: Checked pairs total: 19159 [2020-10-05 22:22:05,209 INFO L214 etLargeBlockEncoding]: Total number of compositions: 121 [2020-10-05 22:22:05,213 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 76 transitions, 194 flow [2020-10-05 22:22:05,507 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4685 states. [2020-10-05 22:22:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states. [2020-10-05 22:22:05,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-05 22:22:05,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:05,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:05,529 INFO L427 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]=== [2020-10-05 22:22:05,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:05,536 INFO L82 PathProgramCache]: Analyzing trace with hash -826932197, now seen corresponding path program 1 times [2020-10-05 22:22:05,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:05,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221812971] [2020-10-05 22:22:05,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:05,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221812971] [2020-10-05 22:22:05,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:05,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:22:05,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160246260] [2020-10-05 22:22:05,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:05,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:05,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:05,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:05,872 INFO L87 Difference]: Start difference. First operand 4685 states. Second operand 3 states. [2020-10-05 22:22:06,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:06,147 INFO L93 Difference]: Finished difference Result 5823 states and 21672 transitions. [2020-10-05 22:22:06,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:06,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-05 22:22:06,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:06,225 INFO L225 Difference]: With dead ends: 5823 [2020-10-05 22:22:06,225 INFO L226 Difference]: Without dead ends: 4979 [2020-10-05 22:22:06,226 INFO L675 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 [2020-10-05 22:22:06,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2020-10-05 22:22:06,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4442. [2020-10-05 22:22:06,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4442 states. [2020-10-05 22:22:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 17172 transitions. [2020-10-05 22:22:06,488 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 17172 transitions. Word has length 12 [2020-10-05 22:22:06,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:06,489 INFO L479 AbstractCegarLoop]: Abstraction has 4442 states and 17172 transitions. [2020-10-05 22:22:06,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 17172 transitions. [2020-10-05 22:22:06,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:22:06,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:06,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:06,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 22:22:06,493 INFO L427 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]=== [2020-10-05 22:22:06,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:06,494 INFO L82 PathProgramCache]: Analyzing trace with hash 140173334, now seen corresponding path program 1 times [2020-10-05 22:22:06,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:06,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670128700] [2020-10-05 22:22:06,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:06,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670128700] [2020-10-05 22:22:06,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:06,599 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:22:06,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185013005] [2020-10-05 22:22:06,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:06,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:06,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:06,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:06,602 INFO L87 Difference]: Start difference. First operand 4442 states and 17172 transitions. Second operand 3 states. [2020-10-05 22:22:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:06,671 INFO L93 Difference]: Finished difference Result 4347 states and 16799 transitions. [2020-10-05 22:22:06,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:06,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-05 22:22:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:06,713 INFO L225 Difference]: With dead ends: 4347 [2020-10-05 22:22:06,714 INFO L226 Difference]: Without dead ends: 4347 [2020-10-05 22:22:06,715 INFO L675 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 [2020-10-05 22:22:06,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4347 states. [2020-10-05 22:22:06,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4347 to 4347. [2020-10-05 22:22:06,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4347 states. [2020-10-05 22:22:06,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 16799 transitions. [2020-10-05 22:22:06,873 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 16799 transitions. Word has length 13 [2020-10-05 22:22:06,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:06,874 INFO L479 AbstractCegarLoop]: Abstraction has 4347 states and 16799 transitions. [2020-10-05 22:22:06,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:06,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 16799 transitions. [2020-10-05 22:22:06,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 22:22:06,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:06,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:06,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 22:22:06,878 INFO L427 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]=== [2020-10-05 22:22:06,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:06,878 INFO L82 PathProgramCache]: Analyzing trace with hash 140173181, now seen corresponding path program 1 times [2020-10-05 22:22:06,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:06,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068403160] [2020-10-05 22:22:06,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:06,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:06,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068403160] [2020-10-05 22:22:06,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:06,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 22:22:06,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323759328] [2020-10-05 22:22:06,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:06,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:06,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:06,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:06,951 INFO L87 Difference]: Start difference. First operand 4347 states and 16799 transitions. Second operand 3 states. [2020-10-05 22:22:07,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:07,093 INFO L93 Difference]: Finished difference Result 4252 states and 16426 transitions. [2020-10-05 22:22:07,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:07,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-05 22:22:07,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:07,149 INFO L225 Difference]: With dead ends: 4252 [2020-10-05 22:22:07,149 INFO L226 Difference]: Without dead ends: 4252 [2020-10-05 22:22:07,151 INFO L675 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 [2020-10-05 22:22:07,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2020-10-05 22:22:07,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 4252. [2020-10-05 22:22:07,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4252 states. [2020-10-05 22:22:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4252 states to 4252 states and 16426 transitions. [2020-10-05 22:22:07,304 INFO L78 Accepts]: Start accepts. Automaton has 4252 states and 16426 transitions. Word has length 13 [2020-10-05 22:22:07,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:07,304 INFO L479 AbstractCegarLoop]: Abstraction has 4252 states and 16426 transitions. [2020-10-05 22:22:07,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:07,304 INFO L276 IsEmpty]: Start isEmpty. Operand 4252 states and 16426 transitions. [2020-10-05 22:22:07,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:22:07,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:07,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:07,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 22:22:07,314 INFO L427 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]=== [2020-10-05 22:22:07,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:07,314 INFO L82 PathProgramCache]: Analyzing trace with hash 816585883, now seen corresponding path program 1 times [2020-10-05 22:22:07,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:07,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37602931] [2020-10-05 22:22:07,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:07,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37602931] [2020-10-05 22:22:07,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:07,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:22:07,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469319994] [2020-10-05 22:22:07,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:07,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:07,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:07,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,362 INFO L87 Difference]: Start difference. First operand 4252 states and 16426 transitions. Second operand 3 states. [2020-10-05 22:22:07,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:07,432 INFO L93 Difference]: Finished difference Result 4406 states and 16453 transitions. [2020-10-05 22:22:07,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:07,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-05 22:22:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:07,453 INFO L225 Difference]: With dead ends: 4406 [2020-10-05 22:22:07,453 INFO L226 Difference]: Without dead ends: 4404 [2020-10-05 22:22:07,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:07,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2020-10-05 22:22:07,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 4338. [2020-10-05 22:22:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4338 states. [2020-10-05 22:22:07,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4338 states to 4338 states and 16249 transitions. [2020-10-05 22:22:07,580 INFO L78 Accepts]: Start accepts. Automaton has 4338 states and 16249 transitions. Word has length 17 [2020-10-05 22:22:07,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:07,580 INFO L479 AbstractCegarLoop]: Abstraction has 4338 states and 16249 transitions. [2020-10-05 22:22:07,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:07,580 INFO L276 IsEmpty]: Start isEmpty. Operand 4338 states and 16249 transitions. [2020-10-05 22:22:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:22:07,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:07,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:07,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 22:22:07,587 INFO L427 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]=== [2020-10-05 22:22:07,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:07,587 INFO L82 PathProgramCache]: Analyzing trace with hash -2055196038, now seen corresponding path program 1 times [2020-10-05 22:22:07,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:07,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889639260] [2020-10-05 22:22:07,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:07,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:07,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889639260] [2020-10-05 22:22:07,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:07,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 22:22:07,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843314929] [2020-10-05 22:22:07,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:22:07,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:07,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:22:07,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:22:07,681 INFO L87 Difference]: Start difference. First operand 4338 states and 16249 transitions. Second operand 6 states. [2020-10-05 22:22:08,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:08,058 INFO L93 Difference]: Finished difference Result 5317 states and 19476 transitions. [2020-10-05 22:22:08,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-05 22:22:08,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-05 22:22:08,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:08,081 INFO L225 Difference]: With dead ends: 5317 [2020-10-05 22:22:08,081 INFO L226 Difference]: Without dead ends: 5317 [2020-10-05 22:22:08,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-05 22:22:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2020-10-05 22:22:08,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 4749. [2020-10-05 22:22:08,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4749 states. [2020-10-05 22:22:08,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4749 states to 4749 states and 17702 transitions. [2020-10-05 22:22:08,224 INFO L78 Accepts]: Start accepts. Automaton has 4749 states and 17702 transitions. Word has length 17 [2020-10-05 22:22:08,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:08,224 INFO L479 AbstractCegarLoop]: Abstraction has 4749 states and 17702 transitions. [2020-10-05 22:22:08,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:22:08,225 INFO L276 IsEmpty]: Start isEmpty. Operand 4749 states and 17702 transitions. [2020-10-05 22:22:08,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:22:08,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:08,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:08,231 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 22:22:08,232 INFO L427 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]=== [2020-10-05 22:22:08,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:08,232 INFO L82 PathProgramCache]: Analyzing trace with hash 181191796, now seen corresponding path program 2 times [2020-10-05 22:22:08,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:08,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435624270] [2020-10-05 22:22:08,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:08,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:08,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435624270] [2020-10-05 22:22:08,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:08,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:22:08,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216628910] [2020-10-05 22:22:08,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:22:08,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:08,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:22:08,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:22:08,308 INFO L87 Difference]: Start difference. First operand 4749 states and 17702 transitions. Second operand 5 states. [2020-10-05 22:22:08,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:08,462 INFO L93 Difference]: Finished difference Result 6512 states and 23578 transitions. [2020-10-05 22:22:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:22:08,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-05 22:22:08,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:08,488 INFO L225 Difference]: With dead ends: 6512 [2020-10-05 22:22:08,488 INFO L226 Difference]: Without dead ends: 6512 [2020-10-05 22:22:08,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:22:08,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6512 states. [2020-10-05 22:22:08,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6512 to 6473. [2020-10-05 22:22:08,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6473 states. [2020-10-05 22:22:08,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6473 states to 6473 states and 23511 transitions. [2020-10-05 22:22:08,671 INFO L78 Accepts]: Start accepts. Automaton has 6473 states and 23511 transitions. Word has length 17 [2020-10-05 22:22:08,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:08,671 INFO L479 AbstractCegarLoop]: Abstraction has 6473 states and 23511 transitions. [2020-10-05 22:22:08,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:22:08,672 INFO L276 IsEmpty]: Start isEmpty. Operand 6473 states and 23511 transitions. [2020-10-05 22:22:08,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 22:22:08,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:08,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:08,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 22:22:08,680 INFO L427 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]=== [2020-10-05 22:22:08,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:08,680 INFO L82 PathProgramCache]: Analyzing trace with hash 443281263, now seen corresponding path program 1 times [2020-10-05 22:22:08,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:08,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653240039] [2020-10-05 22:22:08,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:08,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:08,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653240039] [2020-10-05 22:22:08,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:08,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:22:08,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471782588] [2020-10-05 22:22:08,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:22:08,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:08,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:22:08,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:22:08,724 INFO L87 Difference]: Start difference. First operand 6473 states and 23511 transitions. Second operand 4 states. [2020-10-05 22:22:08,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:08,936 INFO L93 Difference]: Finished difference Result 9062 states and 31848 transitions. [2020-10-05 22:22:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:22:08,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 22:22:08,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:08,954 INFO L225 Difference]: With dead ends: 9062 [2020-10-05 22:22:08,955 INFO L226 Difference]: Without dead ends: 4826 [2020-10-05 22:22:08,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:22:08,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4826 states. [2020-10-05 22:22:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4826 to 4787. [2020-10-05 22:22:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4787 states. [2020-10-05 22:22:09,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 15798 transitions. [2020-10-05 22:22:09,095 INFO L78 Accepts]: Start accepts. Automaton has 4787 states and 15798 transitions. Word has length 17 [2020-10-05 22:22:09,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:09,095 INFO L479 AbstractCegarLoop]: Abstraction has 4787 states and 15798 transitions. [2020-10-05 22:22:09,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:22:09,095 INFO L276 IsEmpty]: Start isEmpty. Operand 4787 states and 15798 transitions. [2020-10-05 22:22:09,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:22:09,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:09,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:09,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 22:22:09,101 INFO L427 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]=== [2020-10-05 22:22:09,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:09,102 INFO L82 PathProgramCache]: Analyzing trace with hash -60740080, now seen corresponding path program 1 times [2020-10-05 22:22:09,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:09,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395055742] [2020-10-05 22:22:09,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:09,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:09,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395055742] [2020-10-05 22:22:09,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:09,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:22:09,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36081217] [2020-10-05 22:22:09,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:09,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:09,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:09,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:09,144 INFO L87 Difference]: Start difference. First operand 4787 states and 15798 transitions. Second operand 3 states. [2020-10-05 22:22:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:09,181 INFO L93 Difference]: Finished difference Result 4787 states and 15703 transitions. [2020-10-05 22:22:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:09,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-05 22:22:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:09,189 INFO L225 Difference]: With dead ends: 4787 [2020-10-05 22:22:09,189 INFO L226 Difference]: Without dead ends: 3413 [2020-10-05 22:22:09,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:09,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3413 states. [2020-10-05 22:22:09,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3413 to 2769. [2020-10-05 22:22:09,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2769 states. [2020-10-05 22:22:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 8888 transitions. [2020-10-05 22:22:09,255 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 8888 transitions. Word has length 19 [2020-10-05 22:22:09,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:09,256 INFO L479 AbstractCegarLoop]: Abstraction has 2769 states and 8888 transitions. [2020-10-05 22:22:09,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:09,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 8888 transitions. [2020-10-05 22:22:09,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-05 22:22:09,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:09,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 22:22:09,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-05 22:22:09,260 INFO L427 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]=== [2020-10-05 22:22:09,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:09,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1627364503, now seen corresponding path program 1 times [2020-10-05 22:22:09,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:09,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303875547] [2020-10-05 22:22:09,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:09,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:09,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303875547] [2020-10-05 22:22:09,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:09,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:22:09,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293712384] [2020-10-05 22:22:09,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:09,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:09,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:09,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:09,299 INFO L87 Difference]: Start difference. First operand 2769 states and 8888 transitions. Second operand 3 states. [2020-10-05 22:22:09,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:09,326 INFO L93 Difference]: Finished difference Result 2769 states and 8816 transitions. [2020-10-05 22:22:09,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:09,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-05 22:22:09,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:09,329 INFO L225 Difference]: With dead ends: 2769 [2020-10-05 22:22:09,329 INFO L226 Difference]: Without dead ends: 1364 [2020-10-05 22:22:09,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:09,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2020-10-05 22:22:09,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1218. [2020-10-05 22:22:09,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1218 states. [2020-10-05 22:22:09,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 3285 transitions. [2020-10-05 22:22:09,353 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 3285 transitions. Word has length 19 [2020-10-05 22:22:09,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:09,353 INFO L479 AbstractCegarLoop]: Abstraction has 1218 states and 3285 transitions. [2020-10-05 22:22:09,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 3285 transitions. [2020-10-05 22:22:09,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-05 22:22:09,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:09,356 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] [2020-10-05 22:22:09,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 22:22:09,356 INFO L427 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]=== [2020-10-05 22:22:09,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:09,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1178946213, now seen corresponding path program 1 times [2020-10-05 22:22:09,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:09,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979290408] [2020-10-05 22:22:09,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:09,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:09,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979290408] [2020-10-05 22:22:09,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:09,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:22:09,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305014352] [2020-10-05 22:22:09,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:09,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:09,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:09,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:09,389 INFO L87 Difference]: Start difference. First operand 1218 states and 3285 transitions. Second operand 3 states. [2020-10-05 22:22:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:09,420 INFO L93 Difference]: Finished difference Result 1506 states and 3996 transitions. [2020-10-05 22:22:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:09,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-05 22:22:09,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:09,423 INFO L225 Difference]: With dead ends: 1506 [2020-10-05 22:22:09,423 INFO L226 Difference]: Without dead ends: 1506 [2020-10-05 22:22:09,423 INFO L675 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 [2020-10-05 22:22:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2020-10-05 22:22:09,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1258. [2020-10-05 22:22:09,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1258 states. [2020-10-05 22:22:09,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 3388 transitions. [2020-10-05 22:22:09,447 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 3388 transitions. Word has length 22 [2020-10-05 22:22:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:09,448 INFO L479 AbstractCegarLoop]: Abstraction has 1258 states and 3388 transitions. [2020-10-05 22:22:09,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:09,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 3388 transitions. [2020-10-05 22:22:09,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-05 22:22:09,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:09,451 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] [2020-10-05 22:22:09,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-05 22:22:09,451 INFO L427 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]=== [2020-10-05 22:22:09,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:09,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1178947143, now seen corresponding path program 1 times [2020-10-05 22:22:09,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:09,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503301599] [2020-10-05 22:22:09,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:09,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503301599] [2020-10-05 22:22:09,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:09,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:22:09,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534267670] [2020-10-05 22:22:09,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:22:09,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:09,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:22:09,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:22:09,495 INFO L87 Difference]: Start difference. First operand 1258 states and 3388 transitions. Second operand 5 states. [2020-10-05 22:22:09,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:09,597 INFO L93 Difference]: Finished difference Result 1646 states and 4241 transitions. [2020-10-05 22:22:09,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:22:09,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-05 22:22:09,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:09,600 INFO L225 Difference]: With dead ends: 1646 [2020-10-05 22:22:09,601 INFO L226 Difference]: Without dead ends: 1586 [2020-10-05 22:22:09,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:22:09,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2020-10-05 22:22:09,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1300. [2020-10-05 22:22:09,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1300 states. [2020-10-05 22:22:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 3501 transitions. [2020-10-05 22:22:09,627 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 3501 transitions. Word has length 22 [2020-10-05 22:22:09,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:09,627 INFO L479 AbstractCegarLoop]: Abstraction has 1300 states and 3501 transitions. [2020-10-05 22:22:09,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:22:09,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 3501 transitions. [2020-10-05 22:22:09,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-05 22:22:09,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:09,630 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] [2020-10-05 22:22:09,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 22:22:09,631 INFO L427 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]=== [2020-10-05 22:22:09,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:09,631 INFO L82 PathProgramCache]: Analyzing trace with hash 412208202, now seen corresponding path program 1 times [2020-10-05 22:22:09,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:09,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954343065] [2020-10-05 22:22:09,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:09,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954343065] [2020-10-05 22:22:09,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:09,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 22:22:09,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024303996] [2020-10-05 22:22:09,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 22:22:09,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:09,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 22:22:09,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:09,663 INFO L87 Difference]: Start difference. First operand 1300 states and 3501 transitions. Second operand 3 states. [2020-10-05 22:22:09,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:09,684 INFO L93 Difference]: Finished difference Result 914 states and 2299 transitions. [2020-10-05 22:22:09,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 22:22:09,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-05 22:22:09,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:09,686 INFO L225 Difference]: With dead ends: 914 [2020-10-05 22:22:09,686 INFO L226 Difference]: Without dead ends: 914 [2020-10-05 22:22:09,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 22:22:09,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2020-10-05 22:22:09,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 862. [2020-10-05 22:22:09,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 862 states. [2020-10-05 22:22:09,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 2223 transitions. [2020-10-05 22:22:09,702 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 2223 transitions. Word has length 22 [2020-10-05 22:22:09,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:09,702 INFO L479 AbstractCegarLoop]: Abstraction has 862 states and 2223 transitions. [2020-10-05 22:22:09,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 22:22:09,703 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 2223 transitions. [2020-10-05 22:22:09,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-05 22:22:09,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:09,705 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] [2020-10-05 22:22:09,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-05 22:22:09,705 INFO L427 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]=== [2020-10-05 22:22:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:09,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1525455808, now seen corresponding path program 1 times [2020-10-05 22:22:09,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:09,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271657641] [2020-10-05 22:22:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:09,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271657641] [2020-10-05 22:22:09,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:09,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:22:09,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669224784] [2020-10-05 22:22:09,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 22:22:09,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:09,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 22:22:09,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:22:09,759 INFO L87 Difference]: Start difference. First operand 862 states and 2223 transitions. Second operand 5 states. [2020-10-05 22:22:09,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:09,869 INFO L93 Difference]: Finished difference Result 919 states and 2443 transitions. [2020-10-05 22:22:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:22:09,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-05 22:22:09,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:09,871 INFO L225 Difference]: With dead ends: 919 [2020-10-05 22:22:09,872 INFO L226 Difference]: Without dead ends: 908 [2020-10-05 22:22:09,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:22:09,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2020-10-05 22:22:09,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 851. [2020-10-05 22:22:09,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 851 states. [2020-10-05 22:22:09,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 2188 transitions. [2020-10-05 22:22:09,889 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 2188 transitions. Word has length 23 [2020-10-05 22:22:09,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:09,890 INFO L479 AbstractCegarLoop]: Abstraction has 851 states and 2188 transitions. [2020-10-05 22:22:09,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 22:22:09,890 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 2188 transitions. [2020-10-05 22:22:09,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-05 22:22:09,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:09,892 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] [2020-10-05 22:22:09,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-05 22:22:09,892 INFO L427 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]=== [2020-10-05 22:22:09,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:09,893 INFO L82 PathProgramCache]: Analyzing trace with hash -930235892, now seen corresponding path program 1 times [2020-10-05 22:22:09,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:09,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009334633] [2020-10-05 22:22:09,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:09,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009334633] [2020-10-05 22:22:09,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:09,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-05 22:22:09,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587164852] [2020-10-05 22:22:09,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-05 22:22:09,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:09,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-05 22:22:09,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-05 22:22:09,966 INFO L87 Difference]: Start difference. First operand 851 states and 2188 transitions. Second operand 8 states. [2020-10-05 22:22:10,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:10,327 INFO L93 Difference]: Finished difference Result 1011 states and 2580 transitions. [2020-10-05 22:22:10,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-05 22:22:10,328 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-05 22:22:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:10,330 INFO L225 Difference]: With dead ends: 1011 [2020-10-05 22:22:10,330 INFO L226 Difference]: Without dead ends: 1000 [2020-10-05 22:22:10,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-10-05 22:22:10,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2020-10-05 22:22:10,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 874. [2020-10-05 22:22:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 874 states. [2020-10-05 22:22:10,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 2218 transitions. [2020-10-05 22:22:10,347 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 2218 transitions. Word has length 23 [2020-10-05 22:22:10,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:10,348 INFO L479 AbstractCegarLoop]: Abstraction has 874 states and 2218 transitions. [2020-10-05 22:22:10,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-05 22:22:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 2218 transitions. [2020-10-05 22:22:10,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-05 22:22:10,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:10,350 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] [2020-10-05 22:22:10,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-05 22:22:10,350 INFO L427 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]=== [2020-10-05 22:22:10,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:10,350 INFO L82 PathProgramCache]: Analyzing trace with hash 88029372, now seen corresponding path program 2 times [2020-10-05 22:22:10,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:10,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696756267] [2020-10-05 22:22:10,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:10,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696756267] [2020-10-05 22:22:10,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:10,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-05 22:22:10,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803475284] [2020-10-05 22:22:10,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-05 22:22:10,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:10,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-05 22:22:10,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-05 22:22:10,447 INFO L87 Difference]: Start difference. First operand 874 states and 2218 transitions. Second operand 9 states. [2020-10-05 22:22:11,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:11,030 INFO L93 Difference]: Finished difference Result 944 states and 2445 transitions. [2020-10-05 22:22:11,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-05 22:22:11,030 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-05 22:22:11,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:11,032 INFO L225 Difference]: With dead ends: 944 [2020-10-05 22:22:11,032 INFO L226 Difference]: Without dead ends: 944 [2020-10-05 22:22:11,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-10-05 22:22:11,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2020-10-05 22:22:11,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 825. [2020-10-05 22:22:11,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-10-05 22:22:11,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 2111 transitions. [2020-10-05 22:22:11,054 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 2111 transitions. Word has length 23 [2020-10-05 22:22:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:11,055 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 2111 transitions. [2020-10-05 22:22:11,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-05 22:22:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 2111 transitions. [2020-10-05 22:22:11,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-05 22:22:11,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:11,057 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] [2020-10-05 22:22:11,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-05 22:22:11,058 INFO L427 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]=== [2020-10-05 22:22:11,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:11,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1259864773, now seen corresponding path program 1 times [2020-10-05 22:22:11,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:11,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567158541] [2020-10-05 22:22:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:11,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567158541] [2020-10-05 22:22:11,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:11,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-05 22:22:11,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040971150] [2020-10-05 22:22:11,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-05 22:22:11,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:11,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-05 22:22:11,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-05 22:22:11,197 INFO L87 Difference]: Start difference. First operand 825 states and 2111 transitions. Second operand 9 states. [2020-10-05 22:22:11,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:11,767 INFO L93 Difference]: Finished difference Result 1139 states and 2886 transitions. [2020-10-05 22:22:11,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-05 22:22:11,767 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-05 22:22:11,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:11,770 INFO L225 Difference]: With dead ends: 1139 [2020-10-05 22:22:11,771 INFO L226 Difference]: Without dead ends: 1139 [2020-10-05 22:22:11,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-10-05 22:22:11,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2020-10-05 22:22:11,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 916. [2020-10-05 22:22:11,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 916 states. [2020-10-05 22:22:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 2352 transitions. [2020-10-05 22:22:11,790 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 2352 transitions. Word has length 23 [2020-10-05 22:22:11,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:11,790 INFO L479 AbstractCegarLoop]: Abstraction has 916 states and 2352 transitions. [2020-10-05 22:22:11,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-05 22:22:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 2352 transitions. [2020-10-05 22:22:11,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-05 22:22:11,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:11,792 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] [2020-10-05 22:22:11,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-05 22:22:11,793 INFO L427 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]=== [2020-10-05 22:22:11,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:11,793 INFO L82 PathProgramCache]: Analyzing trace with hash 903980331, now seen corresponding path program 2 times [2020-10-05 22:22:11,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:11,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373405679] [2020-10-05 22:22:11,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:11,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373405679] [2020-10-05 22:22:11,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:11,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-05 22:22:11,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794151275] [2020-10-05 22:22:11,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-05 22:22:11,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:11,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-05 22:22:11,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-05 22:22:11,901 INFO L87 Difference]: Start difference. First operand 916 states and 2352 transitions. Second operand 9 states. [2020-10-05 22:22:12,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:12,468 INFO L93 Difference]: Finished difference Result 958 states and 2533 transitions. [2020-10-05 22:22:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-05 22:22:12,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-05 22:22:12,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:12,471 INFO L225 Difference]: With dead ends: 958 [2020-10-05 22:22:12,471 INFO L226 Difference]: Without dead ends: 958 [2020-10-05 22:22:12,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-10-05 22:22:12,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-10-05 22:22:12,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 800. [2020-10-05 22:22:12,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2020-10-05 22:22:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 2051 transitions. [2020-10-05 22:22:12,488 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 2051 transitions. Word has length 23 [2020-10-05 22:22:12,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:12,488 INFO L479 AbstractCegarLoop]: Abstraction has 800 states and 2051 transitions. [2020-10-05 22:22:12,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-05 22:22:12,488 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 2051 transitions. [2020-10-05 22:22:12,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:12,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:12,491 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] [2020-10-05 22:22:12,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-05 22:22:12,491 INFO L427 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]=== [2020-10-05 22:22:12,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:12,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1146557510, now seen corresponding path program 1 times [2020-10-05 22:22:12,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:12,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184403643] [2020-10-05 22:22:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:12,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:12,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184403643] [2020-10-05 22:22:12,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:12,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 22:22:12,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841063030] [2020-10-05 22:22:12,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:22:12,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:12,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:22:12,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:22:12,550 INFO L87 Difference]: Start difference. First operand 800 states and 2051 transitions. Second operand 4 states. [2020-10-05 22:22:12,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:12,613 INFO L93 Difference]: Finished difference Result 947 states and 2484 transitions. [2020-10-05 22:22:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 22:22:12,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-05 22:22:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:12,616 INFO L225 Difference]: With dead ends: 947 [2020-10-05 22:22:12,616 INFO L226 Difference]: Without dead ends: 901 [2020-10-05 22:22:12,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:22:12,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-10-05 22:22:12,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 762. [2020-10-05 22:22:12,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2020-10-05 22:22:12,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1946 transitions. [2020-10-05 22:22:12,631 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1946 transitions. Word has length 28 [2020-10-05 22:22:12,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:12,631 INFO L479 AbstractCegarLoop]: Abstraction has 762 states and 1946 transitions. [2020-10-05 22:22:12,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:22:12,632 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1946 transitions. [2020-10-05 22:22:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:12,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:12,635 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] [2020-10-05 22:22:12,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-05 22:22:12,635 INFO L427 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]=== [2020-10-05 22:22:12,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:12,635 INFO L82 PathProgramCache]: Analyzing trace with hash 899824519, now seen corresponding path program 1 times [2020-10-05 22:22:12,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:12,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787469516] [2020-10-05 22:22:12,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:12,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:12,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787469516] [2020-10-05 22:22:12,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:12,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:22:12,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386790346] [2020-10-05 22:22:12,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:22:12,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:12,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:22:12,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:22:12,718 INFO L87 Difference]: Start difference. First operand 762 states and 1946 transitions. Second operand 7 states. [2020-10-05 22:22:12,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:12,880 INFO L93 Difference]: Finished difference Result 836 states and 2163 transitions. [2020-10-05 22:22:12,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-05 22:22:12,881 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-05 22:22:12,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:12,882 INFO L225 Difference]: With dead ends: 836 [2020-10-05 22:22:12,883 INFO L226 Difference]: Without dead ends: 739 [2020-10-05 22:22:12,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-05 22:22:12,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-10-05 22:22:12,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 690. [2020-10-05 22:22:12,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-10-05 22:22:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1772 transitions. [2020-10-05 22:22:12,894 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1772 transitions. Word has length 28 [2020-10-05 22:22:12,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:12,894 INFO L479 AbstractCegarLoop]: Abstraction has 690 states and 1772 transitions. [2020-10-05 22:22:12,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:22:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1772 transitions. [2020-10-05 22:22:12,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:12,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:12,896 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] [2020-10-05 22:22:12,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-05 22:22:12,896 INFO L427 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]=== [2020-10-05 22:22:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:12,896 INFO L82 PathProgramCache]: Analyzing trace with hash 418390647, now seen corresponding path program 2 times [2020-10-05 22:22:12,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:12,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226994317] [2020-10-05 22:22:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:12,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226994317] [2020-10-05 22:22:12,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:12,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:22:12,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170740846] [2020-10-05 22:22:12,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:22:12,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:12,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:22:12,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:22:12,961 INFO L87 Difference]: Start difference. First operand 690 states and 1772 transitions. Second operand 7 states. [2020-10-05 22:22:13,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:13,118 INFO L93 Difference]: Finished difference Result 884 states and 2325 transitions. [2020-10-05 22:22:13,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-05 22:22:13,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-05 22:22:13,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:13,120 INFO L225 Difference]: With dead ends: 884 [2020-10-05 22:22:13,120 INFO L226 Difference]: Without dead ends: 741 [2020-10-05 22:22:13,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-05 22:22:13,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-10-05 22:22:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 632. [2020-10-05 22:22:13,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-10-05 22:22:13,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 1625 transitions. [2020-10-05 22:22:13,134 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 1625 transitions. Word has length 28 [2020-10-05 22:22:13,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:13,134 INFO L479 AbstractCegarLoop]: Abstraction has 632 states and 1625 transitions. [2020-10-05 22:22:13,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:22:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 1625 transitions. [2020-10-05 22:22:13,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:13,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:13,136 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] [2020-10-05 22:22:13,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-05 22:22:13,136 INFO L427 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]=== [2020-10-05 22:22:13,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:13,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1685908442, now seen corresponding path program 1 times [2020-10-05 22:22:13,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:13,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774085332] [2020-10-05 22:22:13,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:13,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774085332] [2020-10-05 22:22:13,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:13,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:22:13,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523374174] [2020-10-05 22:22:13,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:22:13,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:13,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:22:13,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:22:13,204 INFO L87 Difference]: Start difference. First operand 632 states and 1625 transitions. Second operand 7 states. [2020-10-05 22:22:13,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:13,393 INFO L93 Difference]: Finished difference Result 695 states and 1850 transitions. [2020-10-05 22:22:13,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-05 22:22:13,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-05 22:22:13,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:13,396 INFO L225 Difference]: With dead ends: 695 [2020-10-05 22:22:13,396 INFO L226 Difference]: Without dead ends: 600 [2020-10-05 22:22:13,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-05 22:22:13,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2020-10-05 22:22:13,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 562. [2020-10-05 22:22:13,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2020-10-05 22:22:13,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 1455 transitions. [2020-10-05 22:22:13,407 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 1455 transitions. Word has length 28 [2020-10-05 22:22:13,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:13,407 INFO L479 AbstractCegarLoop]: Abstraction has 562 states and 1455 transitions. [2020-10-05 22:22:13,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:22:13,407 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 1455 transitions. [2020-10-05 22:22:13,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:13,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:13,409 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] [2020-10-05 22:22:13,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-05 22:22:13,409 INFO L427 AbstractCegarLoop]: === Iteration 22 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:13,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:13,409 INFO L82 PathProgramCache]: Analyzing trace with hash -686866746, now seen corresponding path program 2 times [2020-10-05 22:22:13,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:13,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653834025] [2020-10-05 22:22:13,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:13,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:13,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653834025] [2020-10-05 22:22:13,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:13,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:22:13,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399140118] [2020-10-05 22:22:13,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:22:13,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:13,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:22:13,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:22:13,494 INFO L87 Difference]: Start difference. First operand 562 states and 1455 transitions. Second operand 7 states. [2020-10-05 22:22:13,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:13,753 INFO L93 Difference]: Finished difference Result 759 states and 2045 transitions. [2020-10-05 22:22:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-05 22:22:13,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-05 22:22:13,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:13,755 INFO L225 Difference]: With dead ends: 759 [2020-10-05 22:22:13,755 INFO L226 Difference]: Without dead ends: 538 [2020-10-05 22:22:13,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-05 22:22:13,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-10-05 22:22:13,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 464. [2020-10-05 22:22:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-05 22:22:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1177 transitions. [2020-10-05 22:22:13,764 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1177 transitions. Word has length 28 [2020-10-05 22:22:13,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:13,765 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 1177 transitions. [2020-10-05 22:22:13,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:22:13,765 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1177 transitions. [2020-10-05 22:22:13,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:13,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:13,766 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] [2020-10-05 22:22:13,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-05 22:22:13,766 INFO L427 AbstractCegarLoop]: === Iteration 23 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:13,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:13,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1554648590, now seen corresponding path program 3 times [2020-10-05 22:22:13,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:13,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854922266] [2020-10-05 22:22:13,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:13,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854922266] [2020-10-05 22:22:13,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:13,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:22:13,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625915952] [2020-10-05 22:22:13,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:22:13,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:13,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:22:13,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:22:13,839 INFO L87 Difference]: Start difference. First operand 464 states and 1177 transitions. Second operand 7 states. [2020-10-05 22:22:14,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:14,026 INFO L93 Difference]: Finished difference Result 538 states and 1357 transitions. [2020-10-05 22:22:14,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-05 22:22:14,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-05 22:22:14,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:14,028 INFO L225 Difference]: With dead ends: 538 [2020-10-05 22:22:14,028 INFO L226 Difference]: Without dead ends: 453 [2020-10-05 22:22:14,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-05 22:22:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-10-05 22:22:14,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 401. [2020-10-05 22:22:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-10-05 22:22:14,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 993 transitions. [2020-10-05 22:22:14,034 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 993 transitions. Word has length 28 [2020-10-05 22:22:14,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:14,034 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 993 transitions. [2020-10-05 22:22:14,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:22:14,035 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 993 transitions. [2020-10-05 22:22:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:14,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:14,036 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] [2020-10-05 22:22:14,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-05 22:22:14,036 INFO L427 AbstractCegarLoop]: === Iteration 24 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 22:22:14,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:14,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1316107438, now seen corresponding path program 4 times [2020-10-05 22:22:14,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:14,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815173345] [2020-10-05 22:22:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:14,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:14,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815173345] [2020-10-05 22:22:14,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:14,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 22:22:14,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371733101] [2020-10-05 22:22:14,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 22:22:14,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:14,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 22:22:14,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 22:22:14,069 INFO L87 Difference]: Start difference. First operand 401 states and 993 transitions. Second operand 4 states. [2020-10-05 22:22:14,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:14,116 INFO L93 Difference]: Finished difference Result 409 states and 1021 transitions. [2020-10-05 22:22:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 22:22:14,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-05 22:22:14,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:14,118 INFO L225 Difference]: With dead ends: 409 [2020-10-05 22:22:14,118 INFO L226 Difference]: Without dead ends: 401 [2020-10-05 22:22:14,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 22:22:14,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-05 22:22:14,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 393. [2020-10-05 22:22:14,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-10-05 22:22:14,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 965 transitions. [2020-10-05 22:22:14,125 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 965 transitions. Word has length 28 [2020-10-05 22:22:14,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:14,125 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 965 transitions. [2020-10-05 22:22:14,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 22:22:14,125 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 965 transitions. [2020-10-05 22:22:14,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:14,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:14,126 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] [2020-10-05 22:22:14,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-05 22:22:14,126 INFO L427 AbstractCegarLoop]: === Iteration 25 === [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]=== [2020-10-05 22:22:14,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:14,127 INFO L82 PathProgramCache]: Analyzing trace with hash -148672596, now seen corresponding path program 1 times [2020-10-05 22:22:14,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:14,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565858711] [2020-10-05 22:22:14,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:14,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:14,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565858711] [2020-10-05 22:22:14,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:14,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:22:14,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788896440] [2020-10-05 22:22:14,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:22:14,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:14,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:22:14,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:22:14,169 INFO L87 Difference]: Start difference. First operand 393 states and 965 transitions. Second operand 6 states. [2020-10-05 22:22:14,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:14,279 INFO L93 Difference]: Finished difference Result 415 states and 1058 transitions. [2020-10-05 22:22:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:22:14,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-05 22:22:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:14,281 INFO L225 Difference]: With dead ends: 415 [2020-10-05 22:22:14,281 INFO L226 Difference]: Without dead ends: 269 [2020-10-05 22:22:14,281 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-05 22:22:14,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-10-05 22:22:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 237. [2020-10-05 22:22:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-10-05 22:22:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 587 transitions. [2020-10-05 22:22:14,286 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 587 transitions. Word has length 28 [2020-10-05 22:22:14,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:14,286 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 587 transitions. [2020-10-05 22:22:14,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:22:14,286 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 587 transitions. [2020-10-05 22:22:14,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:14,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:14,287 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] [2020-10-05 22:22:14,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-05 22:22:14,287 INFO L427 AbstractCegarLoop]: === Iteration 26 === [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]=== [2020-10-05 22:22:14,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:14,287 INFO L82 PathProgramCache]: Analyzing trace with hash 962127783, now seen corresponding path program 3 times [2020-10-05 22:22:14,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:14,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578128074] [2020-10-05 22:22:14,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:14,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578128074] [2020-10-05 22:22:14,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:14,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:22:14,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839072345] [2020-10-05 22:22:14,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 22:22:14,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:14,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 22:22:14,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-05 22:22:14,356 INFO L87 Difference]: Start difference. First operand 237 states and 587 transitions. Second operand 7 states. [2020-10-05 22:22:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:14,537 INFO L93 Difference]: Finished difference Result 303 states and 753 transitions. [2020-10-05 22:22:14,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-05 22:22:14,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-05 22:22:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:14,539 INFO L225 Difference]: With dead ends: 303 [2020-10-05 22:22:14,539 INFO L226 Difference]: Without dead ends: 230 [2020-10-05 22:22:14,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-05 22:22:14,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-05 22:22:14,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 180. [2020-10-05 22:22:14,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-05 22:22:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 438 transitions. [2020-10-05 22:22:14,544 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 438 transitions. Word has length 28 [2020-10-05 22:22:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:14,544 INFO L479 AbstractCegarLoop]: Abstraction has 180 states and 438 transitions. [2020-10-05 22:22:14,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 22:22:14,544 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 438 transitions. [2020-10-05 22:22:14,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-05 22:22:14,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 22:22:14,545 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] [2020-10-05 22:22:14,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-05 22:22:14,545 INFO L427 AbstractCegarLoop]: === Iteration 27 === [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]=== [2020-10-05 22:22:14,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 22:22:14,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1602322120, now seen corresponding path program 2 times [2020-10-05 22:22:14,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 22:22:14,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009006164] [2020-10-05 22:22:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 22:22:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 22:22:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 22:22:14,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009006164] [2020-10-05 22:22:14,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 22:22:14,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-05 22:22:14,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429711939] [2020-10-05 22:22:14,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 22:22:14,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 22:22:14,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 22:22:14,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-05 22:22:14,595 INFO L87 Difference]: Start difference. First operand 180 states and 438 transitions. Second operand 6 states. [2020-10-05 22:22:14,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 22:22:14,683 INFO L93 Difference]: Finished difference Result 172 states and 454 transitions. [2020-10-05 22:22:14,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 22:22:14,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-05 22:22:14,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 22:22:14,683 INFO L225 Difference]: With dead ends: 172 [2020-10-05 22:22:14,683 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 22:22:14,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-05 22:22:14,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 22:22:14,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 22:22:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 22:22:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 22:22:14,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-10-05 22:22:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 22:22:14,685 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 22:22:14,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 22:22:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 22:22:14,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 22:22:14,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-05 22:22:14,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 10:22:14 BasicIcfg [2020-10-05 22:22:14,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 22:22:14,691 INFO L168 Benchmark]: Toolchain (without parser) took 16115.13 ms. Allocated memory was 143.1 MB in the beginning and 511.7 MB in the end (delta: 368.6 MB). Free memory was 105.0 MB in the beginning and 254.5 MB in the end (delta: -149.6 MB). Peak memory consumption was 219.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:14,692 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 143.1 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 22:22:14,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.38 ms. Allocated memory was 143.1 MB in the beginning and 205.5 MB in the end (delta: 62.4 MB). Free memory was 104.8 MB in the beginning and 160.9 MB in the end (delta: -56.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:14,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.56 ms. Allocated memory is still 205.5 MB. Free memory was 160.9 MB in the beginning and 157.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:14,693 INFO L168 Benchmark]: Boogie Preprocessor took 42.15 ms. Allocated memory is still 205.5 MB. Free memory was 157.8 MB in the beginning and 156.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:14,694 INFO L168 Benchmark]: RCFGBuilder took 1166.29 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 156.0 MB in the beginning and 158.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:14,694 INFO L168 Benchmark]: TraceAbstraction took 14077.86 ms. Allocated memory was 233.8 MB in the beginning and 511.7 MB in the end (delta: 277.9 MB). Free memory was 158.9 MB in the beginning and 254.5 MB in the end (delta: -95.7 MB). Peak memory consumption was 182.2 MB. Max. memory is 7.1 GB. [2020-10-05 22:22:14,697 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 143.1 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 747.38 ms. Allocated memory was 143.1 MB in the beginning and 205.5 MB in the end (delta: 62.4 MB). Free memory was 104.8 MB in the beginning and 160.9 MB in the end (delta: -56.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 76.56 ms. Allocated memory is still 205.5 MB. Free memory was 160.9 MB in the beginning and 157.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.15 ms. Allocated memory is still 205.5 MB. Free memory was 157.8 MB in the beginning and 156.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1166.29 ms. Allocated memory was 205.5 MB in the beginning and 233.8 MB in the end (delta: 28.3 MB). Free memory was 156.0 MB in the beginning and 158.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14077.86 ms. Allocated memory was 233.8 MB in the beginning and 511.7 MB in the end (delta: 277.9 MB). Free memory was 158.9 MB in the beginning and 254.5 MB in the end (delta: -95.7 MB). Peak memory consumption was 182.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.3s, 157 ProgramPointsBefore, 66 ProgramPointsAfterwards, 171 TransitionsBefore, 76 TransitionsAfterwards, 10120 CoEnabledTransitionPairs, 7 FixpointIterations, 28 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 5372 VarBasedMoverChecksPositive, 118 VarBasedMoverChecksNegative, 38 SemBasedMoverChecksPositive, 104 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.9s, 0 MoverChecksTotal, 19159 CheckedPairsTotal, 121 TotalNumberOfCompositions - PositiveResult [Line: 701]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 708]: 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, 148 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.8s, OverallIterations: 27, TraceHistogramMax: 1, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 2091 SDtfs, 2589 SDslu, 4024 SDs, 0 SdLazy, 3117 SolverSat, 309 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6473occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 3859 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 605 NumberOfCodeBlocks, 605 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 55710 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 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...