/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:30:49,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:30:49,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:30:49,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:30:49,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:30:49,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:30:49,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:30:49,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:30:49,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:30:49,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:30:49,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:30:49,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:30:49,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:30:49,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:30:49,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:30:49,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:30:49,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:30:49,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:30:49,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:30:49,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:30:49,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:30:49,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:30:49,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:30:49,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:30:49,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 12:30:49,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:30:49,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:30:49,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:30:49,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:30:49,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:30:49,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:30:49,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:30:49,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:30:49,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:30:49,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:30:49,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:30:49,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 12:30:49,806 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:30:49,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:30:49,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:30:49,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:30:49,808 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:30:49,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:30:49,809 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:30:49,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:30:49,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:30:49,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:30:49,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:30:49,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:30:49,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:30:49,810 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:30:49,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:30:49,811 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:30:49,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:30:49,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:30:49,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:30:49,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:30:49,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:30:49,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:30:49,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:30:49,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:30:49,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:30:49,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:30:49,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:30:49,815 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 12:30:49,815 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:30:49,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:30:49,815 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 12:30:50,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:30:50,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:30:50,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:30:50,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:30:50,131 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:30:50,132 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2020-10-16 12:30:50,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc4b5e43f/c160a39c23524d44a70f9a163d1e5b36/FLAG53d22b5d6 [2020-10-16 12:30:50,791 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:30:50,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-atomic/qrcu-1.i [2020-10-16 12:30:50,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc4b5e43f/c160a39c23524d44a70f9a163d1e5b36/FLAG53d22b5d6 [2020-10-16 12:30:51,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc4b5e43f/c160a39c23524d44a70f9a163d1e5b36 [2020-10-16 12:30:51,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:30:51,079 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:30:51,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:30:51,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:30:51,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:30:51,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b941af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51, skipping insertion in model container [2020-10-16 12:30:51,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:30:51,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:30:51,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:30:51,678 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:30:51,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:30:51,816 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:30:51,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51 WrapperNode [2020-10-16 12:30:51,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:30:51,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:30:51,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:30:51,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:30:51,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:30:51,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:30:51,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:30:51,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:30:51,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... [2020-10-16 12:30:51,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:30:51,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:30:51,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:30:51,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:30:51,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:30:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2020-10-16 12:30:52,018 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2020-10-16 12:30:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2020-10-16 12:30:52,018 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2020-10-16 12:30:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:30:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:30:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2020-10-16 12:30:52,019 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2020-10-16 12:30:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 12:30:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:30:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:30:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 12:30:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:30:52,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:30:52,023 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:30:53,280 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:30:53,281 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:30:53,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:30:53 BoogieIcfgContainer [2020-10-16 12:30:53,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:30:53,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:30:53,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:30:53,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:30:53,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:30:51" (1/3) ... [2020-10-16 12:30:53,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa9e387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:30:53, skipping insertion in model container [2020-10-16 12:30:53,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:30:51" (2/3) ... [2020-10-16 12:30:53,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa9e387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:30:53, skipping insertion in model container [2020-10-16 12:30:53,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:30:53" (3/3) ... [2020-10-16 12:30:53,293 INFO L111 eAbstractionObserver]: Analyzing ICFG qrcu-1.i [2020-10-16 12:30:53,305 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:30:53,306 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:30:53,314 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:30:53,315 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:30:53,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,354 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,355 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,355 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,355 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,355 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,356 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,356 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,357 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,357 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,358 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,359 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,359 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,360 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,361 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,361 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,361 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,361 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,362 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,362 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,362 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,363 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,363 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,363 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,363 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,363 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,364 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,364 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,364 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,365 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,365 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,365 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,365 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,366 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,367 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,367 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,368 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,368 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,368 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,368 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,369 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,370 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,370 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,370 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,370 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,372 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,372 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,373 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,373 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,373 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,373 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,374 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,374 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,374 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,374 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,375 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,375 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,375 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,375 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,375 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,376 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,376 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,376 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,376 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,376 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,377 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,377 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,377 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,377 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,378 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,378 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,378 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,378 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,378 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,379 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,379 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,379 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,379 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,380 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,380 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,380 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,380 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,380 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,381 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,381 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,381 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,381 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,382 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,383 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,383 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,384 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,384 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,385 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,385 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,385 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,386 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,386 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,386 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,386 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,387 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,387 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,387 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,387 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,387 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,387 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,388 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,388 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,388 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,388 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,389 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,389 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,389 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,389 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,389 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,390 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,390 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,391 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,391 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,391 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,392 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,392 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,393 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,393 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,393 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,393 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,394 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,394 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,394 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,394 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,394 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,395 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,396 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,399 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,400 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,400 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,400 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~post18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#in~readerstart1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#in~readerstart2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,401 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,402 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,402 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,402 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,402 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,403 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,403 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_~readerstart1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,403 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,403 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,403 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,404 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_~readerstart2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,404 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,404 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart1.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,404 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,404 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_check_progress2_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,405 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_~#readerstart1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,405 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#t~mem19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,405 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,405 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,405 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,406 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,406 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_~readerstart2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,406 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,406 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,406 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,407 WARN L313 ript$VariableManager]: TermVariabe qrcu_updaterThread1of1ForFork0_~sum~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,407 WARN L313 ript$VariableManager]: TermVariabe |qrcu_updaterThread1of1ForFork0___VERIFIER_atomic_take_snapshot_#in~readerstart2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,414 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,415 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,415 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,415 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,415 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,415 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,416 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,416 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,416 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,416 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,417 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,417 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~myidx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,417 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,417 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,418 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,418 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1___VERIFIER_atomic_use2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,418 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,418 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,418 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,420 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,421 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,421 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~myidx~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,421 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,421 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,422 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,422 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,422 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,422 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,422 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,423 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,423 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,423 WARN L313 ript$VariableManager]: TermVariabe qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_~myidx not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,423 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,423 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use2_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,423 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,424 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2___VERIFIER_atomic_use_done_#in~myidx| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,424 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,424 WARN L313 ript$VariableManager]: TermVariabe |qrcu_reader2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:30:53,434 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-16 12:30:53,453 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 12:30:53,477 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:30:53,478 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:30:53,478 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:30:53,478 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:30:53,478 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:30:53,478 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:30:53,479 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:30:53,479 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:30:53,497 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:30:53,498 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 171 transitions, 384 flow [2020-10-16 12:30:53,501 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 171 transitions, 384 flow [2020-10-16 12:30:53,503 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 157 places, 171 transitions, 384 flow [2020-10-16 12:30:53,581 INFO L129 PetriNetUnfolder]: 23/179 cut-off events. [2020-10-16 12:30:53,581 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-16 12:30:53,590 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. [2020-10-16 12:30:53,605 INFO L117 LiptonReduction]: Number of co-enabled transitions 10120 [2020-10-16 12:30:56,228 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-16 12:30:56,674 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2020-10-16 12:30:56,786 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-16 12:30:56,968 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-16 12:30:57,092 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-16 12:30:57,122 INFO L132 LiptonReduction]: Checked pairs total: 32265 [2020-10-16 12:30:57,122 INFO L134 LiptonReduction]: Total number of compositions: 121 [2020-10-16 12:30:57,129 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 76 transitions, 194 flow [2020-10-16 12:30:57,421 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4685 states. [2020-10-16 12:30:57,423 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states. [2020-10-16 12:30:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:30:57,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:57,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:57,444 INFO L429 AbstractCegarLoop]: === Iteration 1 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:57,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:57,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1429150528, now seen corresponding path program 1 times [2020-10-16 12:30:57,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:57,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334616375] [2020-10-16 12:30:57,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:57,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334616375] [2020-10-16 12:30:57,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:57,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:30:57,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [288630961] [2020-10-16 12:30:57,685 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:57,689 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:57,706 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-16 12:30:57,707 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:57,711 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:57,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:57,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:57,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:57,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:57,730 INFO L87 Difference]: Start difference. First operand 4685 states. Second operand 3 states. [2020-10-16 12:30:57,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:57,847 INFO L93 Difference]: Finished difference Result 5823 states and 21672 transitions. [2020-10-16 12:30:57,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:57,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 12:30:57,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:57,910 INFO L225 Difference]: With dead ends: 5823 [2020-10-16 12:30:57,910 INFO L226 Difference]: Without dead ends: 4979 [2020-10-16 12:30:57,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2020-10-16 12:30:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4442. [2020-10-16 12:30:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4442 states. [2020-10-16 12:30:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 17172 transitions. [2020-10-16 12:30:58,238 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 17172 transitions. Word has length 12 [2020-10-16 12:30:58,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:58,239 INFO L481 AbstractCegarLoop]: Abstraction has 4442 states and 17172 transitions. [2020-10-16 12:30:58,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:58,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 17172 transitions. [2020-10-16 12:30:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:30:58,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:58,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:58,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:30:58,244 INFO L429 AbstractCegarLoop]: === Iteration 2 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:58,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:58,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1348815056, now seen corresponding path program 1 times [2020-10-16 12:30:58,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:58,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467888771] [2020-10-16 12:30:58,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:58,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:58,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467888771] [2020-10-16 12:30:58,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:58,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:30:58,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1372957225] [2020-10-16 12:30:58,380 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:58,381 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:58,386 INFO L258 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-10-16 12:30:58,386 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:58,387 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:58,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:58,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:58,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:58,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:58,398 INFO L87 Difference]: Start difference. First operand 4442 states and 17172 transitions. Second operand 3 states. [2020-10-16 12:30:58,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:58,520 INFO L93 Difference]: Finished difference Result 4347 states and 16799 transitions. [2020-10-16 12:30:58,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:58,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-16 12:30:58,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:58,561 INFO L225 Difference]: With dead ends: 4347 [2020-10-16 12:30:58,561 INFO L226 Difference]: Without dead ends: 4347 [2020-10-16 12:30:58,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:58,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4347 states. [2020-10-16 12:30:58,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4347 to 4347. [2020-10-16 12:30:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4347 states. [2020-10-16 12:30:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4347 states to 4347 states and 16799 transitions. [2020-10-16 12:30:58,740 INFO L78 Accepts]: Start accepts. Automaton has 4347 states and 16799 transitions. Word has length 13 [2020-10-16 12:30:58,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:58,741 INFO L481 AbstractCegarLoop]: Abstraction has 4347 states and 16799 transitions. [2020-10-16 12:30:58,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:58,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4347 states and 16799 transitions. [2020-10-16 12:30:58,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 12:30:58,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:58,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:58,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:30:58,754 INFO L429 AbstractCegarLoop]: === Iteration 3 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:58,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:58,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1348815207, now seen corresponding path program 1 times [2020-10-16 12:30:58,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:58,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613895390] [2020-10-16 12:30:58,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:58,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:58,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613895390] [2020-10-16 12:30:58,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:58,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:30:58,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1887335523] [2020-10-16 12:30:58,868 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:58,869 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:58,872 INFO L258 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-10-16 12:30:58,872 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:58,873 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:30:58,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:30:58,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:58,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:30:58,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:58,874 INFO L87 Difference]: Start difference. First operand 4347 states and 16799 transitions. Second operand 3 states. [2020-10-16 12:30:58,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:30:58,956 INFO L93 Difference]: Finished difference Result 4252 states and 16426 transitions. [2020-10-16 12:30:58,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:30:58,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-16 12:30:58,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:30:58,994 INFO L225 Difference]: With dead ends: 4252 [2020-10-16 12:30:58,994 INFO L226 Difference]: Without dead ends: 4252 [2020-10-16 12:30:58,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:30:59,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2020-10-16 12:30:59,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 4252. [2020-10-16 12:30:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4252 states. [2020-10-16 12:30:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4252 states to 4252 states and 16426 transitions. [2020-10-16 12:30:59,224 INFO L78 Accepts]: Start accepts. Automaton has 4252 states and 16426 transitions. Word has length 13 [2020-10-16 12:30:59,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:30:59,224 INFO L481 AbstractCegarLoop]: Abstraction has 4252 states and 16426 transitions. [2020-10-16 12:30:59,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:30:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 4252 states and 16426 transitions. [2020-10-16 12:30:59,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:30:59,236 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:30:59,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:30:59,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:30:59,237 INFO L429 AbstractCegarLoop]: === Iteration 4 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:30:59,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:30:59,237 INFO L82 PathProgramCache]: Analyzing trace with hash -367488622, now seen corresponding path program 1 times [2020-10-16 12:30:59,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:30:59,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630643519] [2020-10-16 12:30:59,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:30:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:30:59,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:30:59,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630643519] [2020-10-16 12:30:59,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:30:59,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:30:59,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [340946245] [2020-10-16 12:30:59,325 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:30:59,327 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:30:59,332 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 49 transitions. [2020-10-16 12:30:59,333 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:30:59,352 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:30:59,352 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:59,379 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:30:59,380 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:59,396 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:30:59,396 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:59,408 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:30:59,408 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:30:59,426 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [50049#(or (<= 1 (+ ~ctr1~0 ~ctr2~0)) (<= ~ctr1~0 0))] [2020-10-16 12:30:59,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:30:59,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:30:59,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:30:59,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:30:59,428 INFO L87 Difference]: Start difference. First operand 4252 states and 16426 transitions. Second operand 7 states. [2020-10-16 12:31:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:00,391 INFO L93 Difference]: Finished difference Result 12455 states and 46588 transitions. [2020-10-16 12:31:00,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-16 12:31:00,391 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-16 12:31:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:00,448 INFO L225 Difference]: With dead ends: 12455 [2020-10-16 12:31:00,449 INFO L226 Difference]: Without dead ends: 12455 [2020-10-16 12:31:00,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2020-10-16 12:31:00,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12455 states. [2020-10-16 12:31:00,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12455 to 5251. [2020-10-16 12:31:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5251 states. [2020-10-16 12:31:00,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 20177 transitions. [2020-10-16 12:31:00,696 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 20177 transitions. Word has length 17 [2020-10-16 12:31:00,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:00,697 INFO L481 AbstractCegarLoop]: Abstraction has 5251 states and 20177 transitions. [2020-10-16 12:31:00,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:31:00,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 20177 transitions. [2020-10-16 12:31:00,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:31:00,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:00,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:00,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:31:00,705 INFO L429 AbstractCegarLoop]: === Iteration 5 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:00,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:00,705 INFO L82 PathProgramCache]: Analyzing trace with hash -282524690, now seen corresponding path program 1 times [2020-10-16 12:31:00,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:00,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788532169] [2020-10-16 12:31:00,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:00,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788532169] [2020-10-16 12:31:00,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:00,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:31:00,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [615585938] [2020-10-16 12:31:00,778 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:00,781 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:00,785 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 49 transitions. [2020-10-16 12:31:00,785 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:00,792 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:00,793 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:00,818 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:00,818 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:00,825 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:00,825 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:00,848 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:00,849 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:00,853 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [73035#(or (<= 1 (+ ~ctr1~0 ~ctr2~0)) (<= ~ctr1~0 0))] [2020-10-16 12:31:00,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:31:00,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:00,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:31:00,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:00,854 INFO L87 Difference]: Start difference. First operand 5251 states and 20177 transitions. Second operand 7 states. [2020-10-16 12:31:02,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:02,007 INFO L93 Difference]: Finished difference Result 12691 states and 46410 transitions. [2020-10-16 12:31:02,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-16 12:31:02,008 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-16 12:31:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:02,063 INFO L225 Difference]: With dead ends: 12691 [2020-10-16 12:31:02,063 INFO L226 Difference]: Without dead ends: 12691 [2020-10-16 12:31:02,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-10-16 12:31:02,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12691 states. [2020-10-16 12:31:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12691 to 5047. [2020-10-16 12:31:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5047 states. [2020-10-16 12:31:02,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5047 states to 5047 states and 19193 transitions. [2020-10-16 12:31:02,326 INFO L78 Accepts]: Start accepts. Automaton has 5047 states and 19193 transitions. Word has length 17 [2020-10-16 12:31:02,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:02,326 INFO L481 AbstractCegarLoop]: Abstraction has 5047 states and 19193 transitions. [2020-10-16 12:31:02,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:31:02,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5047 states and 19193 transitions. [2020-10-16 12:31:02,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:31:02,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:02,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:02,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:31:02,335 INFO L429 AbstractCegarLoop]: === Iteration 6 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:02,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:02,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1278040972, now seen corresponding path program 2 times [2020-10-16 12:31:02,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:02,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036175890] [2020-10-16 12:31:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:02,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036175890] [2020-10-16 12:31:02,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:02,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:02,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1100648830] [2020-10-16 12:31:02,415 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:02,419 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:02,426 INFO L258 McrAutomatonBuilder]: Finished intersection with 42 states and 65 transitions. [2020-10-16 12:31:02,427 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:02,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-16 12:31:02,507 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 12:31:02,509 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:31:02,510 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-16 12:31:02,510 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:57, output treesize:3 [2020-10-16 12:31:02,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-16 12:31:02,561 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-16 12:31:02,563 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-16 12:31:02,563 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-16 12:31:02,563 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:57, output treesize:3 [2020-10-16 12:31:02,571 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:02,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:31:02,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:02,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:31:02,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:02,572 INFO L87 Difference]: Start difference. First operand 5047 states and 19193 transitions. Second operand 5 states. [2020-10-16 12:31:02,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:02,714 INFO L93 Difference]: Finished difference Result 6997 states and 25679 transitions. [2020-10-16 12:31:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:31:02,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-16 12:31:02,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:02,744 INFO L225 Difference]: With dead ends: 6997 [2020-10-16 12:31:02,744 INFO L226 Difference]: Without dead ends: 6997 [2020-10-16 12:31:02,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-16 12:31:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6997 states. [2020-10-16 12:31:03,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6997 to 6958. [2020-10-16 12:31:03,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6958 states. [2020-10-16 12:31:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6958 states to 6958 states and 25612 transitions. [2020-10-16 12:31:03,027 INFO L78 Accepts]: Start accepts. Automaton has 6958 states and 25612 transitions. Word has length 17 [2020-10-16 12:31:03,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:03,028 INFO L481 AbstractCegarLoop]: Abstraction has 6958 states and 25612 transitions. [2020-10-16 12:31:03,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:31:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 6958 states and 25612 transitions. [2020-10-16 12:31:03,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 12:31:03,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:03,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:03,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:31:03,037 INFO L429 AbstractCegarLoop]: === Iteration 7 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:03,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:03,038 INFO L82 PathProgramCache]: Analyzing trace with hash -20729748, now seen corresponding path program 1 times [2020-10-16 12:31:03,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:03,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058242919] [2020-10-16 12:31:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:03,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058242919] [2020-10-16 12:31:03,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:03,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:03,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [571573901] [2020-10-16 12:31:03,079 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:03,082 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:03,087 INFO L258 McrAutomatonBuilder]: Finished intersection with 38 states and 57 transitions. [2020-10-16 12:31:03,088 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:03,145 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:03,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:31:03,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:03,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:31:03,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:31:03,147 INFO L87 Difference]: Start difference. First operand 6958 states and 25612 transitions. Second operand 4 states. [2020-10-16 12:31:03,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:03,245 INFO L93 Difference]: Finished difference Result 9734 states and 34559 transitions. [2020-10-16 12:31:03,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:31:03,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 12:31:03,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:03,265 INFO L225 Difference]: With dead ends: 9734 [2020-10-16 12:31:03,265 INFO L226 Difference]: Without dead ends: 5222 [2020-10-16 12:31:03,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:03,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5222 states. [2020-10-16 12:31:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5222 to 5183. [2020-10-16 12:31:03,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5183 states. [2020-10-16 12:31:03,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 17133 transitions. [2020-10-16 12:31:03,406 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 17133 transitions. Word has length 17 [2020-10-16 12:31:03,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:03,407 INFO L481 AbstractCegarLoop]: Abstraction has 5183 states and 17133 transitions. [2020-10-16 12:31:03,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:31:03,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 17133 transitions. [2020-10-16 12:31:03,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:31:03,412 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:03,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:03,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:31:03,413 INFO L429 AbstractCegarLoop]: === Iteration 8 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:03,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:03,413 INFO L82 PathProgramCache]: Analyzing trace with hash 716258407, now seen corresponding path program 1 times [2020-10-16 12:31:03,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:03,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218377831] [2020-10-16 12:31:03,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:03,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:03,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218377831] [2020-10-16 12:31:03,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:03,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:03,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [505035926] [2020-10-16 12:31:03,457 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:03,460 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:03,466 INFO L258 McrAutomatonBuilder]: Finished intersection with 45 states and 69 transitions. [2020-10-16 12:31:03,466 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:03,529 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:03,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:03,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:03,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:03,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:03,530 INFO L87 Difference]: Start difference. First operand 5183 states and 17133 transitions. Second operand 3 states. [2020-10-16 12:31:03,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:03,574 INFO L93 Difference]: Finished difference Result 5183 states and 17038 transitions. [2020-10-16 12:31:03,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:03,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 12:31:03,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:03,586 INFO L225 Difference]: With dead ends: 5183 [2020-10-16 12:31:03,587 INFO L226 Difference]: Without dead ends: 3674 [2020-10-16 12:31:03,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:03,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2020-10-16 12:31:03,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3010. [2020-10-16 12:31:03,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3010 states. [2020-10-16 12:31:03,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3010 states to 3010 states and 9727 transitions. [2020-10-16 12:31:03,662 INFO L78 Accepts]: Start accepts. Automaton has 3010 states and 9727 transitions. Word has length 19 [2020-10-16 12:31:03,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:03,663 INFO L481 AbstractCegarLoop]: Abstraction has 3010 states and 9727 transitions. [2020-10-16 12:31:03,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:03,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3010 states and 9727 transitions. [2020-10-16 12:31:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-16 12:31:03,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:03,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:03,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:31:03,667 INFO L429 AbstractCegarLoop]: === Iteration 9 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:03,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:03,668 INFO L82 PathProgramCache]: Analyzing trace with hash -42612842, now seen corresponding path program 1 times [2020-10-16 12:31:03,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:03,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373458348] [2020-10-16 12:31:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:03,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373458348] [2020-10-16 12:31:03,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:03,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:03,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1328356744] [2020-10-16 12:31:03,707 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:03,709 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:03,714 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 45 transitions. [2020-10-16 12:31:03,714 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:03,755 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:03,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:03,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:03,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:03,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:03,756 INFO L87 Difference]: Start difference. First operand 3010 states and 9727 transitions. Second operand 3 states. [2020-10-16 12:31:03,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:03,836 INFO L93 Difference]: Finished difference Result 3010 states and 9655 transitions. [2020-10-16 12:31:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:03,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-16 12:31:03,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:03,843 INFO L225 Difference]: With dead ends: 3010 [2020-10-16 12:31:03,843 INFO L226 Difference]: Without dead ends: 1436 [2020-10-16 12:31:03,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:03,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2020-10-16 12:31:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1290. [2020-10-16 12:31:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1290 states. [2020-10-16 12:31:03,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 3528 transitions. [2020-10-16 12:31:03,870 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 3528 transitions. Word has length 19 [2020-10-16 12:31:03,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:03,871 INFO L481 AbstractCegarLoop]: Abstraction has 1290 states and 3528 transitions. [2020-10-16 12:31:03,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:03,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 3528 transitions. [2020-10-16 12:31:03,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:31:03,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:03,874 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] [2020-10-16 12:31:03,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:31:03,875 INFO L429 AbstractCegarLoop]: === Iteration 10 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:03,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:03,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1652891015, now seen corresponding path program 1 times [2020-10-16 12:31:03,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:03,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107005436] [2020-10-16 12:31:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:03,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107005436] [2020-10-16 12:31:03,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:03,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:31:03,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2140529846] [2020-10-16 12:31:03,938 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:03,941 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:03,946 INFO L258 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-10-16 12:31:03,946 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:03,977 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:03,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:03,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:03,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:03,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:03,978 INFO L87 Difference]: Start difference. First operand 1290 states and 3528 transitions. Second operand 3 states. [2020-10-16 12:31:03,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,000 INFO L93 Difference]: Finished difference Result 1182 states and 3142 transitions. [2020-10-16 12:31:04,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:04,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-16 12:31:04,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,004 INFO L225 Difference]: With dead ends: 1182 [2020-10-16 12:31:04,005 INFO L226 Difference]: Without dead ends: 1182 [2020-10-16 12:31:04,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:04,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2020-10-16 12:31:04,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1130. [2020-10-16 12:31:04,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1130 states. [2020-10-16 12:31:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 3066 transitions. [2020-10-16 12:31:04,026 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 3066 transitions. Word has length 22 [2020-10-16 12:31:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,027 INFO L481 AbstractCegarLoop]: Abstraction has 1130 states and 3066 transitions. [2020-10-16 12:31:04,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:04,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 3066 transitions. [2020-10-16 12:31:04,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:31:04,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,029 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] [2020-10-16 12:31:04,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:31:04,030 INFO L429 AbstractCegarLoop]: === Iteration 11 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,030 INFO L82 PathProgramCache]: Analyzing trace with hash -886153004, now seen corresponding path program 1 times [2020-10-16 12:31:04,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934129122] [2020-10-16 12:31:04,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:04,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934129122] [2020-10-16 12:31:04,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:04,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1314439116] [2020-10-16 12:31:04,060 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,063 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,067 INFO L258 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-10-16 12:31:04,068 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,069 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:04,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:31:04,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:04,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:31:04,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:04,070 INFO L87 Difference]: Start difference. First operand 1130 states and 3066 transitions. Second operand 3 states. [2020-10-16 12:31:04,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,094 INFO L93 Difference]: Finished difference Result 1142 states and 2959 transitions. [2020-10-16 12:31:04,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:31:04,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-16 12:31:04,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,096 INFO L225 Difference]: With dead ends: 1142 [2020-10-16 12:31:04,097 INFO L226 Difference]: Without dead ends: 1142 [2020-10-16 12:31:04,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:31:04,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-16 12:31:04,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1090. [2020-10-16 12:31:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-10-16 12:31:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 2883 transitions. [2020-10-16 12:31:04,119 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 2883 transitions. Word has length 22 [2020-10-16 12:31:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,119 INFO L481 AbstractCegarLoop]: Abstraction has 1090 states and 2883 transitions. [2020-10-16 12:31:04,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:31:04,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 2883 transitions. [2020-10-16 12:31:04,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-16 12:31:04,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,122 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] [2020-10-16 12:31:04,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 12:31:04,122 INFO L429 AbstractCegarLoop]: === Iteration 12 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,123 INFO L82 PathProgramCache]: Analyzing trace with hash -886152074, now seen corresponding path program 1 times [2020-10-16 12:31:04,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405078579] [2020-10-16 12:31:04,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:04,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405078579] [2020-10-16 12:31:04,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:31:04,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1135120557] [2020-10-16 12:31:04,175 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,179 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,185 INFO L258 McrAutomatonBuilder]: Finished intersection with 39 states and 54 transitions. [2020-10-16 12:31:04,186 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,218 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:04,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:31:04,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:04,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:31:04,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:04,219 INFO L87 Difference]: Start difference. First operand 1090 states and 2883 transitions. Second operand 5 states. [2020-10-16 12:31:04,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,321 INFO L93 Difference]: Finished difference Result 1862 states and 4671 transitions. [2020-10-16 12:31:04,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:31:04,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-16 12:31:04,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,326 INFO L225 Difference]: With dead ends: 1862 [2020-10-16 12:31:04,326 INFO L226 Difference]: Without dead ends: 1670 [2020-10-16 12:31:04,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:04,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2020-10-16 12:31:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1338. [2020-10-16 12:31:04,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1338 states. [2020-10-16 12:31:04,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 3546 transitions. [2020-10-16 12:31:04,353 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 3546 transitions. Word has length 22 [2020-10-16 12:31:04,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,353 INFO L481 AbstractCegarLoop]: Abstraction has 1338 states and 3546 transitions. [2020-10-16 12:31:04,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:31:04,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 3546 transitions. [2020-10-16 12:31:04,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-16 12:31:04,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,357 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] [2020-10-16 12:31:04,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 12:31:04,357 INFO L429 AbstractCegarLoop]: === Iteration 13 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,357 INFO L82 PathProgramCache]: Analyzing trace with hash -931030371, now seen corresponding path program 1 times [2020-10-16 12:31:04,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188981648] [2020-10-16 12:31:04,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:04,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188981648] [2020-10-16 12:31:04,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:04,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [334011632] [2020-10-16 12:31:04,392 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,395 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,411 INFO L258 McrAutomatonBuilder]: Finished intersection with 92 states and 183 transitions. [2020-10-16 12:31:04,412 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,673 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [164992#(< ~idx~0 1), 164991#(< qrcu_reader2Thread1of1ForFork2_~myidx~1 1)] [2020-10-16 12:31:04,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:31:04,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:04,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:31:04,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:31:04,675 INFO L87 Difference]: Start difference. First operand 1338 states and 3546 transitions. Second operand 6 states. [2020-10-16 12:31:04,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:04,751 INFO L93 Difference]: Finished difference Result 1550 states and 4008 transitions. [2020-10-16 12:31:04,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:31:04,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-10-16 12:31:04,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:04,764 INFO L225 Difference]: With dead ends: 1550 [2020-10-16 12:31:04,764 INFO L226 Difference]: Without dead ends: 1468 [2020-10-16 12:31:04,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 18 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2020-10-16 12:31:04,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1185. [2020-10-16 12:31:04,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1185 states. [2020-10-16 12:31:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 3006 transitions. [2020-10-16 12:31:04,792 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 3006 transitions. Word has length 23 [2020-10-16 12:31:04,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:04,792 INFO L481 AbstractCegarLoop]: Abstraction has 1185 states and 3006 transitions. [2020-10-16 12:31:04,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:31:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 3006 transitions. [2020-10-16 12:31:04,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-16 12:31:04,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:04,797 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] [2020-10-16 12:31:04,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 12:31:04,798 INFO L429 AbstractCegarLoop]: === Iteration 14 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:04,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:04,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1195948336, now seen corresponding path program 1 times [2020-10-16 12:31:04,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:04,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042932913] [2020-10-16 12:31:04,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:04,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:04,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042932913] [2020-10-16 12:31:04,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:04,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:31:04,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1187390709] [2020-10-16 12:31:04,918 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:04,921 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:04,939 INFO L258 McrAutomatonBuilder]: Finished intersection with 100 states and 205 transitions. [2020-10-16 12:31:04,940 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:04,945 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:04,946 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:04,976 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:04,976 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:04,993 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:04,993 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,007 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:05,007 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,023 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:05,023 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,150 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,151 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,177 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,177 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,195 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,196 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,212 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,212 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,266 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,267 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,351 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,351 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,368 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,368 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,407 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,407 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,444 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,445 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,523 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:05,523 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:05,528 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [168928#(or (< 0 qrcu_reader1Thread1of1ForFork1_~myidx~0) (<= ~ctr1~0 0) (and (<= 1 (+ ~ctr1~0 ~ctr2~0)) (= qrcu_reader1Thread1of1ForFork1_~myidx~0 0))), 168929#(and (or (<= ~ctr1~0 0) (< 0 ~idx~0) (= ~idx~0 0)) (or (<= 1 (+ ~ctr1~0 ~ctr2~0)) (<= ~ctr1~0 0) (< 0 ~idx~0))), 168926#(or (< 0 qrcu_reader1Thread1of1ForFork1_~myidx~0) (<= 1 (+ ~ctr1~0 ~ctr2~0)) (<= ~ctr1~0 0)), 168927#(or (<= 1 (+ ~ctr1~0 ~ctr2~0)) (<= ~ctr1~0 0) (< 0 ~idx~0)), 168924#(<= 3 (+ ~ctr1~0 ~ctr2~0)), 168925#(or (<= ~ctr1~0 0) (<= 2 (+ ~ctr1~0 ~ctr2~0)))] [2020-10-16 12:31:05,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-16 12:31:05,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:05,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-16 12:31:05,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-16 12:31:05,529 INFO L87 Difference]: Start difference. First operand 1185 states and 3006 transitions. Second operand 15 states. [2020-10-16 12:31:07,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:07,753 INFO L93 Difference]: Finished difference Result 2033 states and 4881 transitions. [2020-10-16 12:31:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-16 12:31:07,754 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2020-10-16 12:31:07,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:07,757 INFO L225 Difference]: With dead ends: 2033 [2020-10-16 12:31:07,758 INFO L226 Difference]: Without dead ends: 1983 [2020-10-16 12:31:07,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 50 SyntacticMatches, 21 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=606, Invalid=1844, Unknown=0, NotChecked=0, Total=2450 [2020-10-16 12:31:07,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2020-10-16 12:31:07,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1147. [2020-10-16 12:31:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2020-10-16 12:31:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 2825 transitions. [2020-10-16 12:31:07,783 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 2825 transitions. Word has length 23 [2020-10-16 12:31:07,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:07,784 INFO L481 AbstractCegarLoop]: Abstraction has 1147 states and 2825 transitions. [2020-10-16 12:31:07,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-16 12:31:07,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 2825 transitions. [2020-10-16 12:31:07,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-16 12:31:07,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:07,786 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] [2020-10-16 12:31:07,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 12:31:07,787 INFO L429 AbstractCegarLoop]: === Iteration 15 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:07,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:07,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1280912268, now seen corresponding path program 1 times [2020-10-16 12:31:07,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:07,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243839451] [2020-10-16 12:31:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:07,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:07,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243839451] [2020-10-16 12:31:07,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:07,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-16 12:31:07,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1171942522] [2020-10-16 12:31:07,908 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:07,912 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:08,002 INFO L258 McrAutomatonBuilder]: Finished intersection with 100 states and 205 transitions. [2020-10-16 12:31:08,003 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:08,007 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:08,008 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,036 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:08,037 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,061 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:08,062 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,078 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:08,079 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,103 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:08,104 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,184 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,185 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,220 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,220 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,241 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,242 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,256 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,256 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,316 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,316 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,398 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,399 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,414 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,415 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,441 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,442 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,469 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,469 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,554 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:08,554 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:08,562 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [173338#(or (< 0 qrcu_reader1Thread1of1ForFork1_~myidx~0) (<= 1 (+ ~ctr1~0 ~ctr2~0)) (<= ~ctr1~0 0)), 173339#(or (<= 1 (+ ~ctr1~0 ~ctr2~0)) (<= ~ctr1~0 0) (< 0 ~idx~0)), 173336#(<= 3 (+ ~ctr1~0 ~ctr2~0)), 173337#(or (<= ~ctr1~0 0) (<= 2 (+ ~ctr1~0 ~ctr2~0))), 173340#(or (< 0 qrcu_reader1Thread1of1ForFork1_~myidx~0) (<= ~ctr1~0 0) (and (<= 1 (+ ~ctr1~0 ~ctr2~0)) (= qrcu_reader1Thread1of1ForFork1_~myidx~0 0))), 173341#(and (or (<= ~ctr1~0 0) (< 0 ~idx~0) (= ~idx~0 0)) (or (<= 1 (+ ~ctr1~0 ~ctr2~0)) (<= ~ctr1~0 0) (< 0 ~idx~0)))] [2020-10-16 12:31:08,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-16 12:31:08,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:08,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-16 12:31:08,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2020-10-16 12:31:08,563 INFO L87 Difference]: Start difference. First operand 1147 states and 2825 transitions. Second operand 15 states. [2020-10-16 12:31:10,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:10,856 INFO L93 Difference]: Finished difference Result 1887 states and 4549 transitions. [2020-10-16 12:31:10,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-16 12:31:10,860 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 23 [2020-10-16 12:31:10,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:10,865 INFO L225 Difference]: With dead ends: 1887 [2020-10-16 12:31:10,865 INFO L226 Difference]: Without dead ends: 1779 [2020-10-16 12:31:10,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 50 SyntacticMatches, 21 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=612, Invalid=1838, Unknown=0, NotChecked=0, Total=2450 [2020-10-16 12:31:10,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2020-10-16 12:31:10,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1016. [2020-10-16 12:31:10,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1016 states. [2020-10-16 12:31:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 2546 transitions. [2020-10-16 12:31:10,889 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 2546 transitions. Word has length 23 [2020-10-16 12:31:10,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:10,889 INFO L481 AbstractCegarLoop]: Abstraction has 1016 states and 2546 transitions. [2020-10-16 12:31:10,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-16 12:31:10,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 2546 transitions. [2020-10-16 12:31:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-16 12:31:10,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:10,892 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] [2020-10-16 12:31:10,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 12:31:10,892 INFO L429 AbstractCegarLoop]: === Iteration 16 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:10,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:10,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1128328506, now seen corresponding path program 1 times [2020-10-16 12:31:10,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:10,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941527093] [2020-10-16 12:31:10,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:10,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941527093] [2020-10-16 12:31:10,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:10,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:10,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [83746583] [2020-10-16 12:31:10,928 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:10,930 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:10,944 INFO L258 McrAutomatonBuilder]: Finished intersection with 84 states and 167 transitions. [2020-10-16 12:31:10,944 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:11,146 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [177335#(< qrcu_reader1Thread1of1ForFork1_~myidx~0 1), 177336#(< ~idx~0 1)] [2020-10-16 12:31:11,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 12:31:11,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:11,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 12:31:11,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:31:11,147 INFO L87 Difference]: Start difference. First operand 1016 states and 2546 transitions. Second operand 6 states. [2020-10-16 12:31:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:11,208 INFO L93 Difference]: Finished difference Result 1059 states and 2688 transitions. [2020-10-16 12:31:11,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:31:11,209 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-10-16 12:31:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:11,210 INFO L225 Difference]: With dead ends: 1059 [2020-10-16 12:31:11,210 INFO L226 Difference]: Without dead ends: 976 [2020-10-16 12:31:11,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 14 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:11,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2020-10-16 12:31:11,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 771. [2020-10-16 12:31:11,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 771 states. [2020-10-16 12:31:11,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1946 transitions. [2020-10-16 12:31:11,227 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1946 transitions. Word has length 23 [2020-10-16 12:31:11,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:11,227 INFO L481 AbstractCegarLoop]: Abstraction has 771 states and 1946 transitions. [2020-10-16 12:31:11,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 12:31:11,227 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1946 transitions. [2020-10-16 12:31:11,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-16 12:31:11,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:11,231 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] [2020-10-16 12:31:11,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 12:31:11,231 INFO L429 AbstractCegarLoop]: === Iteration 17 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:11,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:11,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1509948242, now seen corresponding path program 1 times [2020-10-16 12:31:11,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:11,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595974728] [2020-10-16 12:31:11,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:11,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:11,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595974728] [2020-10-16 12:31:11,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:11,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:31:11,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [918457552] [2020-10-16 12:31:11,331 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:11,335 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:11,356 INFO L258 McrAutomatonBuilder]: Finished intersection with 97 states and 188 transitions. [2020-10-16 12:31:11,356 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:11,372 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,373 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,404 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,404 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,435 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,435 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,453 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,454 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,471 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,472 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,485 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,486 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,503 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,504 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,523 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,523 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,537 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,538 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,550 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,550 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,584 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,585 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,604 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,604 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,614 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,614 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,628 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,628 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,641 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,641 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,674 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:11,674 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,683 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,683 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,704 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,704 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,718 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,718 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,742 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-10-16 12:31:11,743 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:11,747 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [179947#(and (<= 0 ~ctr2~0) (or (<= 1 ~ctr2~0) (<= qrcu_reader1Thread1of1ForFork1_~myidx~0 0))), 179948#(or (< 0 qrcu_reader1Thread1of1ForFork1_~myidx~0) (<= 0 ~ctr2~0)), 179949#(or (<= 0 ~ctr2~0) (< 0 ~idx~0))] [2020-10-16 12:31:11,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 12:31:11,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:11,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 12:31:11,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:31:11,749 INFO L87 Difference]: Start difference. First operand 771 states and 1946 transitions. Second operand 10 states. [2020-10-16 12:31:12,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:12,071 INFO L93 Difference]: Finished difference Result 924 states and 2336 transitions. [2020-10-16 12:31:12,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-16 12:31:12,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-10-16 12:31:12,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:12,075 INFO L225 Difference]: With dead ends: 924 [2020-10-16 12:31:12,075 INFO L226 Difference]: Without dead ends: 689 [2020-10-16 12:31:12,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 47 SyntacticMatches, 19 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2020-10-16 12:31:12,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-10-16 12:31:12,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 564. [2020-10-16 12:31:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-10-16 12:31:12,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 1400 transitions. [2020-10-16 12:31:12,090 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 1400 transitions. Word has length 28 [2020-10-16 12:31:12,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:12,091 INFO L481 AbstractCegarLoop]: Abstraction has 564 states and 1400 transitions. [2020-10-16 12:31:12,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 12:31:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 1400 transitions. [2020-10-16 12:31:12,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-16 12:31:12,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:12,093 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] [2020-10-16 12:31:12,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 12:31:12,094 INFO L429 AbstractCegarLoop]: === Iteration 18 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:12,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:12,094 INFO L82 PathProgramCache]: Analyzing trace with hash 2093632144, now seen corresponding path program 1 times [2020-10-16 12:31:12,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:12,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853171052] [2020-10-16 12:31:12,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:12,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:12,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853171052] [2020-10-16 12:31:12,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:12,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:31:12,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1809728683] [2020-10-16 12:31:12,171 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:12,177 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:12,195 INFO L258 McrAutomatonBuilder]: Finished intersection with 94 states and 182 transitions. [2020-10-16 12:31:12,195 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:12,199 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:12,200 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:12,233 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:12,233 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:12,245 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:12,246 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:12,289 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:12,290 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:12,308 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:12,309 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:12,344 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:12,345 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:12,483 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [182022#(or (< 0 qrcu_reader2Thread1of1ForFork2_~myidx~1) (<= 0 ~ctr2~0)), 182023#(or (<= 0 ~ctr2~0) (< 0 ~idx~0)), 182021#(and (or (<= qrcu_reader2Thread1of1ForFork2_~myidx~1 0) (<= 1 ~ctr2~0)) (<= 0 ~ctr2~0))] [2020-10-16 12:31:12,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 12:31:12,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:12,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 12:31:12,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-16 12:31:12,484 INFO L87 Difference]: Start difference. First operand 564 states and 1400 transitions. Second operand 10 states. [2020-10-16 12:31:12,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:12,700 INFO L93 Difference]: Finished difference Result 660 states and 1682 transitions. [2020-10-16 12:31:12,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 12:31:12,700 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-10-16 12:31:12,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:12,701 INFO L225 Difference]: With dead ends: 660 [2020-10-16 12:31:12,702 INFO L226 Difference]: Without dead ends: 388 [2020-10-16 12:31:12,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 41 SyntacticMatches, 22 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2020-10-16 12:31:12,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-16 12:31:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 344. [2020-10-16 12:31:12,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-10-16 12:31:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 834 transitions. [2020-10-16 12:31:12,709 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 834 transitions. Word has length 28 [2020-10-16 12:31:12,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:12,710 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 834 transitions. [2020-10-16 12:31:12,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 12:31:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 834 transitions. [2020-10-16 12:31:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-16 12:31:12,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:12,711 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] [2020-10-16 12:31:12,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 12:31:12,712 INFO L429 AbstractCegarLoop]: === Iteration 19 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:12,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:12,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1721070390, now seen corresponding path program 2 times [2020-10-16 12:31:12,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:12,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681292558] [2020-10-16 12:31:12,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:12,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681292558] [2020-10-16 12:31:12,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:12,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:31:12,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1198693904] [2020-10-16 12:31:12,746 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:12,750 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:12,762 INFO L258 McrAutomatonBuilder]: Finished intersection with 68 states and 114 transitions. [2020-10-16 12:31:12,763 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:12,767 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:12,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:31:12,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:12,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:31:12,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:31:12,769 INFO L87 Difference]: Start difference. First operand 344 states and 834 transitions. Second operand 4 states. [2020-10-16 12:31:12,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:12,808 INFO L93 Difference]: Finished difference Result 352 states and 862 transitions. [2020-10-16 12:31:12,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:31:12,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-16 12:31:12,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:12,810 INFO L225 Difference]: With dead ends: 352 [2020-10-16 12:31:12,810 INFO L226 Difference]: Without dead ends: 344 [2020-10-16 12:31:12,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-10-16 12:31:12,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 336. [2020-10-16 12:31:12,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-10-16 12:31:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 806 transitions. [2020-10-16 12:31:12,818 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 806 transitions. Word has length 28 [2020-10-16 12:31:12,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:12,818 INFO L481 AbstractCegarLoop]: Abstraction has 336 states and 806 transitions. [2020-10-16 12:31:12,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:31:12,818 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 806 transitions. [2020-10-16 12:31:12,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-16 12:31:12,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:12,819 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] [2020-10-16 12:31:12,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 12:31:12,820 INFO L429 AbstractCegarLoop]: === Iteration 20 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:12,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:12,820 INFO L82 PathProgramCache]: Analyzing trace with hash -582438657, now seen corresponding path program 1 times [2020-10-16 12:31:12,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:12,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782151871] [2020-10-16 12:31:12,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:12,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782151871] [2020-10-16 12:31:12,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:12,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:31:12,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1368564224] [2020-10-16 12:31:12,872 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:12,878 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:12,900 INFO L258 McrAutomatonBuilder]: Finished intersection with 82 states and 142 transitions. [2020-10-16 12:31:12,901 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:12,906 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:12,906 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:12,948 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [184420#(and (or (<= qrcu_reader2Thread1of1ForFork2_~myidx~1 0) (<= 2 ~ctr2~0)) (<= 1 ~ctr2~0))] [2020-10-16 12:31:12,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:31:12,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:12,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:31:12,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:12,949 INFO L87 Difference]: Start difference. First operand 336 states and 806 transitions. Second operand 7 states. [2020-10-16 12:31:13,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:13,109 INFO L93 Difference]: Finished difference Result 364 states and 914 transitions. [2020-10-16 12:31:13,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 12:31:13,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-16 12:31:13,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:13,111 INFO L225 Difference]: With dead ends: 364 [2020-10-16 12:31:13,111 INFO L226 Difference]: Without dead ends: 218 [2020-10-16 12:31:13,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-16 12:31:13,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-16 12:31:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 180. [2020-10-16 12:31:13,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-16 12:31:13,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 438 transitions. [2020-10-16 12:31:13,118 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 438 transitions. Word has length 28 [2020-10-16 12:31:13,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:13,118 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 438 transitions. [2020-10-16 12:31:13,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:31:13,119 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 438 transitions. [2020-10-16 12:31:13,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-16 12:31:13,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:13,119 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] [2020-10-16 12:31:13,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 12:31:13,120 INFO L429 AbstractCegarLoop]: === Iteration 21 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:13,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:13,120 INFO L82 PathProgramCache]: Analyzing trace with hash 716425012, now seen corresponding path program 2 times [2020-10-16 12:31:13,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:13,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734554799] [2020-10-16 12:31:13,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:13,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734554799] [2020-10-16 12:31:13,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:13,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 12:31:13,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [962937873] [2020-10-16 12:31:13,182 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:13,187 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:13,200 INFO L258 McrAutomatonBuilder]: Finished intersection with 67 states and 112 transitions. [2020-10-16 12:31:13,201 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:13,209 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:13,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:31:13,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:13,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:31:13,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:31:13,210 INFO L87 Difference]: Start difference. First operand 180 states and 438 transitions. Second operand 4 states. [2020-10-16 12:31:13,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:13,247 INFO L93 Difference]: Finished difference Result 188 states and 466 transitions. [2020-10-16 12:31:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:31:13,247 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-16 12:31:13,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:13,248 INFO L225 Difference]: With dead ends: 188 [2020-10-16 12:31:13,248 INFO L226 Difference]: Without dead ends: 180 [2020-10-16 12:31:13,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:13,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-16 12:31:13,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 172. [2020-10-16 12:31:13,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-16 12:31:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 410 transitions. [2020-10-16 12:31:13,252 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 410 transitions. Word has length 28 [2020-10-16 12:31:13,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:13,254 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 410 transitions. [2020-10-16 12:31:13,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:31:13,254 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 410 transitions. [2020-10-16 12:31:13,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-16 12:31:13,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:13,256 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] [2020-10-16 12:31:13,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 12:31:13,257 INFO L429 AbstractCegarLoop]: === Iteration 22 === [qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, qrcu_updaterErr1ASSERT_VIOLATIONERROR_FUNCTION, qrcu_updaterErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:13,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:13,257 INFO L82 PathProgramCache]: Analyzing trace with hash -121465774, now seen corresponding path program 1 times [2020-10-16 12:31:13,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:13,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670791310] [2020-10-16 12:31:13,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:13,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:13,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670791310] [2020-10-16 12:31:13,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:13,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 12:31:13,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [792618308] [2020-10-16 12:31:13,332 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:13,337 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:13,352 INFO L258 McrAutomatonBuilder]: Finished intersection with 76 states and 130 transitions. [2020-10-16 12:31:13,352 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:13,356 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 1] term [2020-10-16 12:31:13,357 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-16 12:31:13,393 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [185704#(and (or (<= 2 ~ctr2~0) (<= qrcu_reader1Thread1of1ForFork1_~myidx~0 0)) (<= 1 ~ctr2~0))] [2020-10-16 12:31:13,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:31:13,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:13,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:31:13,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:13,395 INFO L87 Difference]: Start difference. First operand 172 states and 410 transitions. Second operand 7 states. [2020-10-16 12:31:13,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:13,493 INFO L93 Difference]: Finished difference Result 162 states and 419 transitions. [2020-10-16 12:31:13,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 12:31:13,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-10-16 12:31:13,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:13,494 INFO L225 Difference]: With dead ends: 162 [2020-10-16 12:31:13,494 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:31:13,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-16 12:31:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:31:13,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:31:13,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:31:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:31:13,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-10-16 12:31:13,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:13,496 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:31:13,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:31:13,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:31:13,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:31:13,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 12:31:13,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:31:13 BasicIcfg [2020-10-16 12:31:13,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:31:13,502 INFO L168 Benchmark]: Toolchain (without parser) took 22424.36 ms. Allocated memory was 139.5 MB in the beginning and 736.6 MB in the end (delta: 597.2 MB). Free memory was 101.6 MB in the beginning and 567.5 MB in the end (delta: -465.9 MB). Peak memory consumption was 131.2 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:13,503 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:31:13,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.38 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 158.4 MB in the end (delta: -57.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:13,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.36 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 155.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:13,504 INFO L168 Benchmark]: Boogie Preprocessor took 57.93 ms. Allocated memory is still 203.4 MB. Free memory was 155.8 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:13,505 INFO L168 Benchmark]: RCFGBuilder took 1338.40 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 153.8 MB in the beginning and 167.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:13,506 INFO L168 Benchmark]: TraceAbstraction took 20215.23 ms. Allocated memory was 237.0 MB in the beginning and 736.6 MB in the end (delta: 499.6 MB). Free memory was 167.5 MB in the beginning and 567.5 MB in the end (delta: -400.0 MB). Peak memory consumption was 99.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:31:13,508 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.38 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 158.4 MB in the end (delta: -57.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 69.36 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 MB in the beginning and 155.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.93 ms. Allocated memory is still 203.4 MB. Free memory was 155.8 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1338.40 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 153.8 MB in the beginning and 167.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20215.23 ms. Allocated memory was 237.0 MB in the beginning and 736.6 MB in the end (delta: 499.6 MB). Free memory was 167.5 MB in the beginning and 567.5 MB in the end (delta: -400.0 MB). Peak memory consumption was 99.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5431 VarBasedMoverChecksPositive, 95 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 801 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 157 PlacesBefore, 66 PlacesAfterwards, 171 TransitionsBefore, 76 TransitionsAfterwards, 10120 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 121 TotalNumberOfCompositions, 32265 MoverChecksTotal - 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: 20.0s, OverallIterations: 22, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 2026 SDtfs, 3388 SDslu, 4622 SDs, 0 SdLazy, 3654 SolverSat, 582 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 970 GetRequests, 634 SyntacticMatches, 125 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6958occurred 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: 1.9s AutomataMinimizationTime, 22 MinimizatonAttempts, 19019 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 448 ConstructedInterpolants, 0 QuantifiedInterpolants, 30302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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...